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Li YF, Luo QP, Yang YX, Li AQ, Zhang XC. A novel bi-layered asymmetric membrane incorporating demineralized dentin matrix accelerates tissue healing and bone regeneration in a rat skull defect model. Biomater Sci 2024; 12:4226-4241. [PMID: 38984522 DOI: 10.1039/d4bm00350k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/11/2024]
Abstract
Objectives: The technique of guided bone regeneration (GBR) has been widely used in the field of reconstructive dentistry to address hard tissue deficiency. The objective of this research was to manufacture a novel bi-layered asymmetric membrane that incorporates demineralized dentin matrix (DDM), a bioactive bone replacement derived from dentin, in order to achieve both soft tissue isolation and hard tissue regeneration simultaneously. Methods: DDM particles were harvested from healthy, caries-free permanent teeth. The electrospinning technique was utilized to synthesize bi-layered DDM-loaded PLGA/PLA (DPP) membranes. We analyzed the DPP bilayer membranes' surface topography, physicochemical properties and degradation ability. Rat skull critical size defects (CSDs) were constructed to investigate in vivo bone regeneration. Results: The synthesized DPP bilayer membranes possessed suitable surface characteristics, acceptable mechanical properties, good hydrophilicity, favorable apatite forming ability and suitable degradability. Micro-computed tomography (CT) showed significantly more new bone formation in the rat skull defects implanted with the DPP bilayer membranes. Histological evaluation further revealed that the bone was more mature with denser bone trabeculae. In addition, the DPP bilayer membrane significantly promoted the expression of the OCN matrix protein in vivo. Conclusions: The DPP bilayer membranes exhibited remarkable biological safety and osteogenic activity in vivo and showed potential as a prospective candidate for GBR applications in the future.
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Affiliation(s)
- Yan-Fei Li
- Guanghua School of Stomatology, Hospital of Stomatology, Sun Yat-Sen University; Guangdong Provincial Key Laboratory of Stomatology, Guangzhou 510055, China.
- Department of Stomatology, The Eighth Affiliated Hospital, Sun Yat-Sen University, Shenzhen 518033, China
| | - Qi-Pei Luo
- Guanghua School of Stomatology, Hospital of Stomatology, Sun Yat-Sen University; Guangdong Provincial Key Laboratory of Stomatology, Guangzhou 510055, China.
| | - Yu-Xin Yang
- Guanghua School of Stomatology, Hospital of Stomatology, Sun Yat-Sen University; Guangdong Provincial Key Laboratory of Stomatology, Guangzhou 510055, China.
| | - An-Qi Li
- Guanghua School of Stomatology, Hospital of Stomatology, Sun Yat-Sen University; Guangdong Provincial Key Laboratory of Stomatology, Guangzhou 510055, China.
| | - Xin-Chun Zhang
- Guanghua School of Stomatology, Hospital of Stomatology, Sun Yat-Sen University; Guangdong Provincial Key Laboratory of Stomatology, Guangzhou 510055, China.
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2
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Shiroud Heidari B, Dodda JM, El-Khordagui LK, Focarete ML, Maroti P, Toth L, Pacilio S, El-Habashy SE, Boateng J, Catanzano O, Sahai N, Mou L, Zheng M. Emerging materials and technologies for advancing bioresorbable surgical meshes. Acta Biomater 2024; 184:1-21. [PMID: 38879102 DOI: 10.1016/j.actbio.2024.06.012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2024] [Revised: 05/22/2024] [Accepted: 06/10/2024] [Indexed: 06/29/2024]
Abstract
Surgical meshes play a significant role in the treatment of various medical conditions, such as hernias, pelvic floor issues, guided bone regeneration, and wound healing. To date, commercial surgical meshes are typically made of non-absorbable synthetic polymers, notably polypropylene and polytetrafluoroethylene, which are associated with postoperative complications, such as infections. Biological meshes, based on native tissues, have been employed to overcome such complications, though mechanical strength has been a main disadvantage. The right balance in mechanical and biological performances has been achieved by the advent of bioresorbable meshes. Despite improvements, recurrence of clinical complications associated with surgical meshes raises significant concerns regarding the technical adequacy of current materials and designs, pointing to a crucial need for further development. To this end, current research focuses on the design of meshes capable of biomimicking native tissue and facilitating the healing process without post-operative complications. Researchers are actively investigating advanced bioresorbable materials, both synthetic polymers and natural biopolymers, while also exploring the performance of therapeutic agents, surface modification methods and advanced manufacturing technologies such as 4D printing. This review seeks to evaluate emerging biomaterials and technologies for enhancing the performance and clinical applicability of the next-generation surgical meshes. STATEMENT OF SIGNIFICANCE: In the ever-transforming landscape of regenerative medicine, the embracing of engineered bioabsorbable surgical meshes stands as a key milestone in addressing persistent challenges and complications associated with existing treatments. The urgency to move beyond conventional non-absorbable meshes, fraught with post-surgery complications, emphasises the necessity of using advanced biomaterials for engineered tissue regeneration. This review critically examines the growing field of absorbable surgical meshes, considering their potential to transform clinical practice. By strategically combining mechanical strength with bioresorbable characteristics, these innovative meshes hold the promise of mitigating complications and improving patient outcomes across diverse medical applications. As we navigate the complexities of modern medicine, this exploration of engineered absorbable meshes emerges as a promising approach, offering an overall perspective on biomaterials, technologies, and strategies adopted to redefine the future of surgical meshes.
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Affiliation(s)
- Behzad Shiroud Heidari
- Centre for Orthopaedic Research, Medical School, The University of Western Australia, Nedlands, WA, Australia
| | - Jagan Mohan Dodda
- New Technologies - Research Centre (NTC), University of West Bohemia, Univerzitní 8, 301 00 Pilsen, Czech Republic.
| | | | - Maria Letizia Focarete
- Department of Chemistry "Giacomo Ciamician" and INSTM UdR of Bologna, University of Bologna, Italy. Health Sciences & Technologies (HST) CIRI, University of Bologna, Via Tolara di Sopra 41/E, 40064 Ozzano Emilia, Italy
| | - Peter Maroti
- University of Pecs, Medical School, 3D Printing and Visualization Centre, Hungary, University of Pecs, Medical Skills Education and Innovation Centre, Hungary
| | - Luca Toth
- University of Pecs, Medical School, Institute for Translational Medicine, Hungary, University of Pecs, Medical School, Department of Neurosurgery, Hungary
| | - Serafina Pacilio
- Department of Chemistry "Giacomo Ciamician" and INSTM UdR of Bologna, University of Bologna, Italy. Health Sciences & Technologies (HST) CIRI, University of Bologna, Via Tolara di Sopra 41/E, 40064 Ozzano Emilia, Italy; Department of Biomedical and Neuromotor Sciences DIBINEM, Alma Mater Studiorum-University of Bologna, Italy
| | - Salma E El-Habashy
- Department of Pharmaceutics, Faculty of Pharmacy, Alexandria University, Egypt
| | - Joshua Boateng
- Faculty of Engineering and Science, University of Greenwich, Medway Campus, UK
| | - Ovidio Catanzano
- Institute for Polymers, Composites and Biomaterials (IPCB-CNR), Via Campi Flegrei 34, 80078 Pozzuoli, NA, Italy
| | - Nitin Sahai
- University of Pecs, Medical School, 3D Printing and Visualization Centre, Hungary, University of Pecs, Medical Skills Education and Innovation Centre, Hungary; Department of Biomedical Engineering, North Eastern Hill University, Meghalaya, India
| | - Lingjun Mou
- WA Liver and Kidney Transplant Department, Sir Charles Gairdner Hospital, Western Australia, Australia
| | - Minghao Zheng
- Centre for Orthopaedic Research, Medical School, The University of Western Australia, Nedlands, WA, Australia; Perron Institute for Neurological and Translational Science, Nedlands, WA, Australia
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3
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Yuan S, Chen Q, Guo M, Xu Y, Wang W, Li Z. Fabrication of Bioresorbable Barrier Membranes from Gelatin/Poly(4-Hydroxybutyrate) (P4HB). Macromol Biosci 2024; 24:e2400036. [PMID: 38621113 DOI: 10.1002/mabi.202400036] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2024] [Revised: 04/01/2024] [Indexed: 04/17/2024]
Abstract
Dental implant surgery is a procedure that replaces damaged or missing teeth with an artificial implant. During this procedure, guided bone regeneration (GBR) membranes are commonly used to inhibit the migration of epithelium and GBR at the surgical sites. Due to its biodegradability, good biocompatibility, and unique biological properties, gelatin (GT) is considered a suitable candidate for guiding periodontal tissue regeneration. However, GT-based membranes come with limitations, such as poor mechanical strength and mismatched degradation rates. To confront this challenge, a series of GT/poly(4-hydroxybutyrate) (P4HB) composite membranes are fabricated through electrospinning technology. The morphology, composition, wetting properties, mechanical properties, biocompatibility, and in vivo biodegradability of the as-prepared composite membranes are carefully characterized. The results demonstrate that all the membranes present excellent biocompatibility. Moreover, the in vivo degradation rate of the membranes can be manipulated by changing the ratio of GT and P4HB. The results indicate that the optimized GT/P4HB membranes with a high P4HB content (75%) may be suitable for periodontal tissue engineering because of their good mechanical properties and biodegradation rate compatible with tissue growth.
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Affiliation(s)
- Shuaishuai Yuan
- Key Lab of Biobased Polymer Materials of Shandong Provincial Education Department, College of Polymer Science and Engineering, Qingdao University of Science and Technology, Qingdao, 266042, P. R. China
| | - Qi Chen
- Key Lab of Biobased Polymer Materials of Shandong Provincial Education Department, College of Polymer Science and Engineering, Qingdao University of Science and Technology, Qingdao, 266042, P. R. China
| | - Manman Guo
- Key Lab of Biobased Polymer Materials of Shandong Provincial Education Department, College of Polymer Science and Engineering, Qingdao University of Science and Technology, Qingdao, 266042, P. R. China
| | - Yongzhi Xu
- Department of Stomatology, Qingdao Stomatological Hospital Affiliated to Qingdao University, Qingdao, 266003, China
| | - Wanchun Wang
- Department of Stomatology, Qingdao Stomatological Hospital Affiliated to Qingdao University, Qingdao, 266003, China
| | - Zhibo Li
- Key Lab of Biobased Polymer Materials of Shandong Provincial Education Department, College of Polymer Science and Engineering, Qingdao University of Science and Technology, Qingdao, 266042, P. R. China
- College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao, 266042, P. R. China
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4
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Huang D, Yang D, Li K, Wang J, Zheng X, Long J, Liu L. A multifunctional collagen-base bilayer membrane integrated with a bimetallic/polydopamine network for enhanced guided bone regeneration. J Mater Chem B 2024; 12:7171-7190. [PMID: 38932580 DOI: 10.1039/d4tb00512k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/28/2024]
Abstract
The guided bone regeneration (GBR) technique is an effective treatment for small and medium-sized bone defects in the oral and maxillofacial region. However, currently available collagen membranes have limited functionality and are inadequate for clinical requirements. To address this challenge, this study pioneeringly developed a multifunctional bilayer membrane. Specifically, a bimetallic/polydopamine network (BPN), consisting of silver, magnesium, and dopamine, was successfully synthesized for the first time and integrated with collagen and hydroxyapatite. The resulting material was characterized, and its physicochemical properties, along with its barrier, osteogenic, angiogenic, antibacterial, hemostatic, and biosafety effects, were evaluated through both in vitro and in vivo studies. The results indicated that the BPN, composed of magnesium ions, silver nanoparticles (Ag NPs), and polydopamine (PDA), exhibited excellent thermal stability and slow release of silver and magnesium elements. The BPN/Col-HA membrane featured a bilayer structure with uniform distribution of silver and magnesium. It also demonstrated good hydrophilicity, suitable degradation and mechanical properties, as well as sustained release of silver and magnesium. In vitro experiments showed that the BPN/Col-HA membrane possessed desirable barrier, osteogenic, angiogenic, antibacterial, hemostatic, and biocompatible properties. In vivo results further confirmed its biosafety, hemostatic efficacy, and ability to effectively promote bone defect repair and angiogenesis. Thus, the BPN/Col-HA membrane emerges as a multifunctional GBR membrane with potential for clinical translation.
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Affiliation(s)
- Dou Huang
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases & Department of Oral and Maxillofacial Surgery, West China Hospital of Stomatology, Sichuan University, Chengdu, 610041, China.
| | - Die Yang
- Department of Pharmaceutics and Bioengineering, School of Chemical Engineering, Sichuan University, Chengdu, 610065, P. R. China
| | - Kaide Li
- The Second Affiliated Hospital Zhejiang University School of Medicine, Hangzhou, 310009, P. R. China
| | - Jiran Wang
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases & Department of Oral and Maxillofacial Surgery, West China Hospital of Stomatology, Sichuan University, Chengdu, 610041, China.
| | - Xiaohui Zheng
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases & Department of Oral and Maxillofacial Surgery, West China Hospital of Stomatology, Sichuan University, Chengdu, 610041, China.
| | - Jie Long
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases & Department of Oral and Maxillofacial Surgery, West China Hospital of Stomatology, Sichuan University, Chengdu, 610041, China.
| | - Lei Liu
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases & Department of Oral and Maxillofacial Surgery, West China Hospital of Stomatology, Sichuan University, Chengdu, 610041, China.
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Zhang M, Huang Z, Wang X, Liu X, He W, Li Y, Wu D, Wu S. Personalized PLGA/BCL Scaffold with Hierarchical Porous Structure Resembling Periosteum-Bone Complex Enables Efficient Repair of Bone Defect. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2024:e2401589. [PMID: 39018263 DOI: 10.1002/advs.202401589] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/14/2024] [Revised: 05/21/2024] [Indexed: 07/19/2024]
Abstract
Using bone regeneration scaffolds to repair craniomaxillofacial bone defects is a promising strategy. However, most bone regeneration scaffolds still exist some issues such as a lack of barrier structure, inability to precisely match bone defects, and necessity to incorporate biological components to enhance efficacy. Herein, inspired by a periosteum-bone complex, a class of multifunctional hierarchical porous poly(lactic-co-glycolic acid)/baicalein scaffolds is facilely prepared by the union of personalized negative mold technique and phase separation strategy and demonstrated to precisely fit intricate bone defect cavity. The dense up-surface of the scaffold can prevent soft tissue cell penetration, while the loose bottom-surface can promote protein adsorption, cell adhesion, and cell infiltration. The interior macropores of the scaffold and the loaded baicalein can synergistically promote cell differentiation, angiogenesis, and osteogenesis. These findings can open an appealing avenue for the development of personalized multifunctional hierarchical materials for bone repair.
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Affiliation(s)
- Mengqi Zhang
- Hospital of Stomatology, Guanghua School of Stomatology, Guangdong Provincial Key Laboratory of Stomatology, Sun Yat-sen University, Guangzhou, 510055, P. R. China
| | - Zhike Huang
- Medical Research Institute, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou, 510080, P. R. China
| | - Xun Wang
- Hospital of Stomatology, Guanghua School of Stomatology, Guangdong Provincial Key Laboratory of Stomatology, Sun Yat-sen University, Guangzhou, 510055, P. R. China
| | - Xinyu Liu
- Hospital of Stomatology, Guanghua School of Stomatology, Guangdong Provincial Key Laboratory of Stomatology, Sun Yat-sen University, Guangzhou, 510055, P. R. China
| | - Wenyi He
- Key Laboratory for Polymeric Composite and Functional Materials of Ministry of Education, School of Chemistry, Sun Yat-sen University, Guangzhou, 510006, P. R. China
| | - Yan Li
- Hospital of Stomatology, Guanghua School of Stomatology, Guangdong Provincial Key Laboratory of Stomatology, Sun Yat-sen University, Guangzhou, 510055, P. R. China
| | - Dingcai Wu
- Key Laboratory for Polymeric Composite and Functional Materials of Ministry of Education, School of Chemistry, Sun Yat-sen University, Guangzhou, 510006, P. R. China
| | - Shuyi Wu
- Hospital of Stomatology, Guanghua School of Stomatology, Guangdong Provincial Key Laboratory of Stomatology, Sun Yat-sen University, Guangzhou, 510055, P. R. China
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6
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Ashfaq R, Kovács A, Berkó S, Budai-Szűcs M. Developments in Alloplastic Bone Grafts and Barrier Membrane Biomaterials for Periodontal Guided Tissue and Bone Regeneration Therapy. Int J Mol Sci 2024; 25:7746. [PMID: 39062989 PMCID: PMC11277074 DOI: 10.3390/ijms25147746] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2024] [Revised: 07/04/2024] [Accepted: 07/10/2024] [Indexed: 07/28/2024] Open
Abstract
Periodontitis is a serious form of oral gum inflammation with recession of gingival soft tissue, destruction of the periodontal ligament, and absorption of alveolar bone. Management of periodontal tissue and bone destruction, along with the restoration of functionality and structural integrity, is not possible with conventional clinical therapy alone. Guided bone and tissue regeneration therapy employs an occlusive biodegradable barrier membrane and graft biomaterials to guide the formation of alveolar bone and tissues for periodontal restoration and regeneration. Amongst several grafting approaches, alloplastic grafts/biomaterials, either derived from natural sources, synthesization, or a combination of both, offer a wide variety of resources tailored to multiple needs. Examining several pertinent scientific databases (Web of Science, Scopus, PubMed, MEDLINE, and Cochrane Library) provided the foundation to cover the literature on synthetic graft materials and membranes, devoted to achieving periodontal tissue and bone regeneration. This discussion proceeds by highlighting potential grafting and barrier biomaterials, their characteristics, efficiency, regenerative ability, therapy outcomes, and advancements in periodontal guided regeneration therapy. Marketed and standardized quality products made of grafts and membrane biomaterials have been documented in this work. Conclusively, this paper illustrates the challenges, risk factors, and combination of biomaterials and drug delivery systems with which to reconstruct the hierarchical periodontium.
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Affiliation(s)
| | | | | | - Mária Budai-Szűcs
- Institute of Pharmaceutical Technology and Regulatory Affairs, Faculty of Pharmacy, University of Szeged, Eötvös u. 6, H-6720 Szeged, Hungary; (R.A.); (A.K.); (S.B.)
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7
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Yotsova RV, Papanchev GY, Ali M, Gerova-Vatsova T. Open Barrier Membrane Technique for the Treatment of Oroantral Communications: Two Case Reports. Cureus 2024; 16:e63854. [PMID: 39100069 PMCID: PMC11297801 DOI: 10.7759/cureus.63854] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/03/2024] [Indexed: 08/06/2024] Open
Abstract
Oroantral communications (OACs) are relatively common complications after extractions of maxillary posterior teeth. Some defects can heal spontaneously, while others require surgical treatment. The lack of an appropriate therapeutic approach can lead to the epithelialization of the OAC that causes a permanent connection between the two cavities, called an oroantral fistula (OAF), and subsequent chronic sinusitis. Various treatment modalities have been used in cases of OACs, including advancement flaps, bone grafts, synthetic materials, and barrier membranes. We present two cases of closure of OACs with dense polytetrafluoroethylene (d-PTFE) membranes (of FDI tooth #28 in the first case and #17 in the second case), which were left exposed to the oral cavity. In both cases, healing was uneventful.
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Affiliation(s)
| | | | - Madlen Ali
- Department of Oral Surgery, Medical University of Varna, Varna, BGR
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Zhou H, Zhao Y, Zha X, Zhang Z, Zhang L, Wu Y, Ren R, Zhao Z, Yang W, Zhao L. A Janus, robust, biodegradable bacterial cellulose/Ti 3C 2Tx MXene bilayer membranes for guided bone regeneration. BIOMATERIALS ADVANCES 2024; 161:213892. [PMID: 38795472 DOI: 10.1016/j.bioadv.2024.213892] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/14/2024] [Revised: 04/29/2024] [Accepted: 05/10/2024] [Indexed: 05/28/2024]
Abstract
Guided bone regeneration (GBR) stands as an essential modality for craniomaxillofacial bone defect repair, yet challenges like mechanical weakness, inappropriate degradability, limited bioactivity, and intricate manufacturing of GBR membranes hindered the clinical efficacy. Herein, we developed a Janus bacterial cellulose(BC)/MXene membrane through a facile vacuum filtration and etching strategy. This Janus membrane displayed an asymmetric bilayer structure with interfacial compatibility, where the dense layer impeded cell invasion and the porous layer maintained stable space for osteogenesis. Incorporating BC with Ti3C2Tx MXene significantly enhanced the mechanical robustness and flexibility of the material, enabling clinical operability and lasting GBR membrane supports. It also contributed to a suitable biodegradation rate, which aligned with the long-term bone repair period. After demonstrating the desirable biocompatibility, barrier role, and osteogenic capability in vitro, the membrane's regenerative potential was also confirmed in a rat cranial defect model. The excellent bone repair performance could be attributed to the osteogenic capability of MXene nanosheets, the morphological cues of the porous layer, as well as the long-lasting, stable regeneration space provided by the GBR membrane. Thus, our work presented a facile, robust, long-lasting, and biodegradable BC/MXene GBR membrane, offering a practical solution to craniomaxillofacial bone defect repair.
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Affiliation(s)
- Hongling Zhou
- State Key Laboratory of Oral Diseases, National Center for Stomatology, National Clinical Research Center for Oral Diseases, Department of Orthodontics, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, Sichuan, China; Center of Stomatology, West China Xiamen Hospital of Sichuan University, Xiamen 361021, Fujian, China
| | - Yifan Zhao
- State Key Laboratory of Oral Diseases, National Center for Stomatology, National Clinical Research Center for Oral Diseases, Department of Orthodontics, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, Sichuan, China
| | - Xiangjun Zha
- Liver Transplant Center and Laboratory of Liver Transplantation, Frontiers Science Center for Disease-Related Molecular Network, West China Hospital, Sichuan University, 610041, Sichuan, China
| | - Zhengmin Zhang
- College of Polymer Science and Engineering, Sichuan University, State Key Laboratory of Polymer Materials Engineering, Chengdu 610065, Sichuan, China
| | - Linli Zhang
- State Key Laboratory of Oral Diseases, National Center for Stomatology, National Clinical Research Center for Oral Diseases, Department of Orthodontics, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, Sichuan, China
| | - Yeke Wu
- Department of Stomatology, Hospital of Chengdu University of Traditional Chinese Medicine, Sichuan, Chengdu, China
| | - Ruiyang Ren
- State Key Laboratory of Oral Diseases, National Center for Stomatology, National Clinical Research Center for Oral Diseases, Department of Orthodontics, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, Sichuan, China
| | - Zhihe Zhao
- State Key Laboratory of Oral Diseases, National Center for Stomatology, National Clinical Research Center for Oral Diseases, Department of Orthodontics, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, Sichuan, China
| | - Wei Yang
- College of Polymer Science and Engineering, Sichuan University, State Key Laboratory of Polymer Materials Engineering, Chengdu 610065, Sichuan, China
| | - Lixing Zhao
- State Key Laboratory of Oral Diseases, National Center for Stomatology, National Clinical Research Center for Oral Diseases, Department of Orthodontics, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, Sichuan, China
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9
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Deng X, Yu C, Zhang X, Tang X, Guo Q, Fu M, Wang Y, Fang K, Wu T. A chitosan-coated PCL/nano-hydroxyapatite aerogel integrated with a nanofiber membrane for providing antibacterial activity and guiding bone regeneration. NANOSCALE 2024; 16:9861-9874. [PMID: 38712977 DOI: 10.1039/d4nr00563e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/08/2024]
Abstract
A guided bone regeneration (GBR) membrane can act as a barrier to prevent the invasion and interference from foreign soft tissues, promoting infiltration and proliferation of osteoblasts in the bone defect area. Herein, a composite scaffold with dual functions of osteogenesis and antibacterial effects was prepared for GBR. A polycaprolactone (PCL)/nano-hydroxyapatite (n-HA) aerogel produced by electrospinning and freeze-drying techniques was fabricated as the loose layer of the scaffold, while a PCL nanofiber membrane was used as the dense layer. Chitosan (CS) solution served as a middle layer to provide mechanical support and antibacterial effects between the two layers. Morphological results showed that the loose layer had a porous structure with n-HA successfully dispersed in the aerogels, while the dense layer possessed a sufficiently dense structure. In vitro antibacterial experiments illustrated that the CS solution in the middle layer stabilized the scaffold structure and endowed the scaffold with good antibacterial properties. The cytocompatibility results indicated that both fibroblasts and osteoblasts exhibited superior cell activity on the dense and loose layers, respectively. In particular, the dense layer made of nanofibers could work as a barrier layer to inhibit the infiltration of fibroblasts into the loose layer. In vitro osteogenesis analysis suggested that the PCL/n-HA aerogel could enhance the bone induction ability of bone mesenchymal stem cells, which was confirmed by the increased expression of the alkaline phosphatase activity. The loose structure facilitated the infiltration and migration of bone mesenchymal stem cells for better osteogenesis. In summary, such a composite scaffold exhibited excellent osteogenic and antibacterial properties as well as the barrier effect, thus holding promising potential for use as GBR materials.
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Affiliation(s)
- Xinyuan Deng
- Shandong Key Laboratory of Medical and Health Textile Materials, College of Textile & Clothing, Collaborative Innovation Center for Eco-textiles of Shandong Province and the Ministry of Education, Qingdao 266071, China.
| | - Chenghao Yu
- The Affiliated Hospital of Qingdao University, Qingdao Medical College, Qingdao University, Qingdao 266071, China
| | - Xiaopei Zhang
- Shandong Key Laboratory of Medical and Health Textile Materials, College of Textile & Clothing, Collaborative Innovation Center for Eco-textiles of Shandong Province and the Ministry of Education, Qingdao 266071, China.
- The Affiliated Hospital of Qingdao University, Qingdao Medical College, Qingdao University, Qingdao 266071, China
| | - Xunmeng Tang
- Shandong Key Laboratory of Medical and Health Textile Materials, College of Textile & Clothing, Collaborative Innovation Center for Eco-textiles of Shandong Province and the Ministry of Education, Qingdao 266071, China.
| | - Qingxia Guo
- Institute of Neuroregeneration & Neurorehabilitation, Department of Pathophysiology, School of Basic Medicine, Qingdao University, Qingdao, 266071, China
| | - Manfei Fu
- The Affiliated Hospital of Qingdao University, Qingdao Medical College, Qingdao University, Qingdao 266071, China
| | - Yuanfei Wang
- Qingdao Stomatological Hospital Affiliated to Qingdao University, Qingdao, China.
| | - Kuanjun Fang
- Shandong Key Laboratory of Medical and Health Textile Materials, College of Textile & Clothing, Collaborative Innovation Center for Eco-textiles of Shandong Province and the Ministry of Education, Qingdao 266071, China.
- Laboratory for Manufacturing Low Carbon and Functionalized Textiles in the Universities of Shandong Province, Qingdao, State Key Laboratory for Biofibers and Eco-Textiles, Qingdao University, Qingdao 266071, China
| | - Tong Wu
- Shandong Key Laboratory of Medical and Health Textile Materials, College of Textile & Clothing, Collaborative Innovation Center for Eco-textiles of Shandong Province and the Ministry of Education, Qingdao 266071, China.
- The Affiliated Hospital of Qingdao University, Qingdao Medical College, Qingdao University, Qingdao 266071, China
- Institute of Neuroregeneration & Neurorehabilitation, Department of Pathophysiology, School of Basic Medicine, Qingdao University, Qingdao, 266071, China
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10
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Llorente JJ, Junquera L, Gallego L, Pérez-Basterrechea M, Suárez LI, Llorente S. Design, In Vitro Evaluation and In Vivo Biocompatibility of Additive Manufacturing Three-Dimensional Printing of β beta-Tricalcium Phosphate Scaffolds for Bone Regeneration. Biomedicines 2024; 12:1049. [PMID: 38791011 PMCID: PMC11118782 DOI: 10.3390/biomedicines12051049] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2024] [Revised: 05/02/2024] [Accepted: 05/06/2024] [Indexed: 05/26/2024] Open
Abstract
The reconstruction of bone deficiencies remains a challenge due to the limitations of autologous bone grafting. The objective of this study is to evaluate the bone regeneration efficacy of additive manufacturing of tricalcium phosphate (TCP) implants using lithography-based ceramic manufacturing (LCM). LCM uses LithaBone TCP 300 slurry for 3D printing, producing cylindrical scaffolds. Four models of internal scaffold geometry were developed and compared. The in vitro studies included cell culture, differentiation, seeding, morphological studies and detection of early osteogenesis. The in vivo studies involved 42 Wistar rats divided into four groups (control, membrane, scaffold (TCP) and membrane with TCP). In each animal, unilateral right mandibular defects with a total thickness of 5 mm were surgically performed. The animals were sacrificed 3 and 6 months after surgery. Bone neoformation was evaluated by conventional histology, radiology, and micro-CT. Model A (spheres with intersecting and aligned arrays) showed higher penetration and interconnection. Histological and radiological analysis by micro-CT revealed increased bone formation in the grafted groups, especially when combined with a membrane. Our innovative 3D printing technology, combined with precise scaffold design and efficient cleaning, shows potential for bone regeneration. However, further refinement of the technique and long-term clinical studies are crucial to establish the safety and efficacy of these advanced 3D printed scaffolds in human patients.
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Affiliation(s)
| | - Luis Junquera
- Department of Surgery, University of Oviedo, 33006 Oviedo, Spain;
- Department of Oral and Maxillofacial Surgery, Central University Hospital, 33011 Oviedo, Spain
| | - Lorena Gallego
- Department of Surgery, University of Oviedo, 33006 Oviedo, Spain;
- Department of Oral and Maxillofacial Surgery, Cabueñes University Hospital, 33394 Gijón, Spain
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11
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Wang B, Xie X, Jiang W, Zhan Y, Zhang Y, Guo Y, Wang Z, Guo N, Guo K, Sun J. Osteoinductive micro-nano guided bone regeneration membrane for in situ bone defect repair. Stem Cell Res Ther 2024; 15:135. [PMID: 38715130 PMCID: PMC11077813 DOI: 10.1186/s13287-024-03745-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2023] [Accepted: 04/26/2024] [Indexed: 05/12/2024] Open
Abstract
BACKGROUND Biomaterials used in bone tissue engineering must fulfill the requirements of osteoconduction, osteoinduction, and osseointegration. However, biomaterials with good osteoconductive properties face several challenges, including inadequate vascularization, limited osteoinduction and barrier ability, as well as the potential to trigger immune and inflammatory responses. Therefore, there is an urgent need to develop guided bone regeneration membranes as a crucial component of tissue engineering strategies for repairing bone defects. METHODS The mZIF-8/PLA membrane was prepared using electrospinning technology and simulated body fluid external mineralization method. Its ability to induce biomimetic mineralization was evaluated through TEM, EDS, XRD, FT-IR, zeta potential, and wettability techniques. The biocompatibility, osteoinduction properties, and osteo-immunomodulatory effects of the mZIF-8/PLA membrane were comprehensively evaluated by examining cell behaviors of surface-seeded BMSCs and macrophages, as well as the regulation of cellular genes and protein levels using PCR and WB. In vivo, the mZIF-8/PLA membrane's potential to promote bone regeneration and angiogenesis was assessed through Micro-CT and immunohistochemical staining. RESULTS The mineralized deposition enhances hydrophilicity and cell compatibility of mZIF-8/PLA membrane. mZIF-8/PLA membrane promotes up-regulation of osteogenesis and angiogenesis related factors in BMSCs. Moreover, it induces the polarization of macrophages towards the M2 phenotype and modulates the local immune microenvironment. After 4-weeks of implantation, the mZIF-8/PLA membrane successfully bridges critical bone defects and almost completely repairs the defect area after 12-weeks, while significantly improving the strength and vascularization of new bone. CONCLUSIONS The mZIF-8/PLA membrane with dual osteoconductive and immunomodulatory abilities could pave new research paths for bone tissue engineering.
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Affiliation(s)
- Bingqian Wang
- Department of Plastic Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
- Wuhan Clinical Research Center for Superficial Organ Reconstruction, Wuhan, 430022, China
| | - Xinfang Xie
- Department of Plastic Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
- Wuhan Clinical Research Center for Superficial Organ Reconstruction, Wuhan, 430022, China
| | - Wenbin Jiang
- Department of Plastic Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
- Wuhan Clinical Research Center for Superficial Organ Reconstruction, Wuhan, 430022, China
| | - Yichen Zhan
- Department of Plastic Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
- Wuhan Clinical Research Center for Superficial Organ Reconstruction, Wuhan, 430022, China
| | - Yifan Zhang
- Department of Plastic Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
- Wuhan Clinical Research Center for Superficial Organ Reconstruction, Wuhan, 430022, China
| | - Yaqi Guo
- Department of Plastic Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
- Wuhan Clinical Research Center for Superficial Organ Reconstruction, Wuhan, 430022, China
| | - Zhenxing Wang
- Department of Plastic Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
- Wuhan Clinical Research Center for Superficial Organ Reconstruction, Wuhan, 430022, China
| | - Nengqiang Guo
- Department of Plastic Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China.
- Wuhan Clinical Research Center for Superficial Organ Reconstruction, Wuhan, 430022, China.
| | - Ke Guo
- Department of Plastic Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China.
- Wuhan Clinical Research Center for Superficial Organ Reconstruction, Wuhan, 430022, China.
| | - Jiaming Sun
- Department of Plastic Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China.
- Wuhan Clinical Research Center for Superficial Organ Reconstruction, Wuhan, 430022, China.
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Srivastava GK, Martinez-Rodriguez S, Md Fadilah NI, Looi Qi Hao D, Markey G, Shukla P, Fauzi MB, Panetsos F. Progress in Wound-Healing Products Based on Natural Compounds, Stem Cells, and MicroRNA-Based Biopolymers in the European, USA, and Asian Markets: Opportunities, Barriers, and Regulatory Issues. Polymers (Basel) 2024; 16:1280. [PMID: 38732749 PMCID: PMC11085499 DOI: 10.3390/polym16091280] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2024] [Revised: 03/22/2024] [Accepted: 04/02/2024] [Indexed: 05/13/2024] Open
Abstract
Wounds are breaks in the continuity of the skin and underlying tissues, resulting from external causes such as cuts, blows, impacts, or surgical interventions. Countless individuals suffer minor to severe injuries, with unfortunate cases even leading to death. In today's scenario, several commercial products are available to facilitate the healing process of wounds, although chronic wounds still present more challenges than acute wounds. Nevertheless, the huge demand for wound-care products within the healthcare sector has given rise to a rapidly growing market, fostering continuous research and development endeavors for innovative wound-healing solutions. Today, there are many commercially available products including those based on natural biopolymers, stem cells, and microRNAs that promote healing from wounds. This article explores the recent breakthroughs in wound-healing products that harness the potential of natural biopolymers, stem cells, and microRNAs. A comprehensive exploration is undertaken, covering not only commercially available products but also those still in the research phase. Additionally, we provide a thorough examination of the opportunities, obstacles, and regulatory considerations influencing the potential commercialization of wound-healing products across the diverse markets of Europe, America, and Asia.
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Affiliation(s)
- Girish K. Srivastava
- Departamento de Cirugía, Oftalmología, Otorrinolaringología y Fisioterapia, Facultad de Medicina, Universidad de Valladolid, 47005 Valladolid, Spain;
- Instituto Universitario de Oftalmobiología Aplicada, Facultad de Medicina, Universidad de Valladolid, 47011 Valladolid, Spain;
| | - Sofia Martinez-Rodriguez
- Instituto Universitario de Oftalmobiología Aplicada, Facultad de Medicina, Universidad de Valladolid, 47011 Valladolid, Spain;
| | - Nur Izzah Md Fadilah
- Centre for Tissue Engineering and Regenerative Medicine, Faculty of Medicine, Universiti Kebangsaan Malaysia, Kuala Lumpur 56000, Malaysia; (N.I.M.F.); (D.L.Q.H.); (M.B.F.)
| | - Daniel Looi Qi Hao
- Centre for Tissue Engineering and Regenerative Medicine, Faculty of Medicine, Universiti Kebangsaan Malaysia, Kuala Lumpur 56000, Malaysia; (N.I.M.F.); (D.L.Q.H.); (M.B.F.)
- My Cytohealth Sdn. Bhd., Kuala Lumpur 56000, Malaysia
| | - Gavin Markey
- Personalised Medicine Centre, School of Medicine, Ulster University, C-TRIC Building, Altnagelvin Area Hospital, Glenshane Road, Londonderry BT47 6SB, UK; (G.M.); (P.S.)
| | - Priyank Shukla
- Personalised Medicine Centre, School of Medicine, Ulster University, C-TRIC Building, Altnagelvin Area Hospital, Glenshane Road, Londonderry BT47 6SB, UK; (G.M.); (P.S.)
| | - Mh Busra Fauzi
- Centre for Tissue Engineering and Regenerative Medicine, Faculty of Medicine, Universiti Kebangsaan Malaysia, Kuala Lumpur 56000, Malaysia; (N.I.M.F.); (D.L.Q.H.); (M.B.F.)
| | - Fivos Panetsos
- Neurocomputing and Neurorobotics Research Group, Faculty of Biology and Faculty of Optics, Universidad Complutense de Madrid, 28040 Madrid, Spain
- Institute for Health Research San Carlos Clinical Hospital (IdISSC), 28040 Madrid, Spain
- Silk Biomed SL, 28260 Madrid, Spain
- Bioactive Surfaces SL, 28260 Madrid, Spain
- Omnia Mater SL, 28009 Madrid, Spain
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13
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Zhao X, Zhuang Y, Cao Y, Cai F, Lv Y, Zheng Y, Yang J, Shi X. Electrospun Biomimetic Periosteum Capable of Controlled Release of Multiple Agents for Programmed Promoting Bone Regeneration. Adv Healthc Mater 2024; 13:e2303134. [PMID: 38348511 DOI: 10.1002/adhm.202303134] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2023] [Revised: 01/29/2024] [Indexed: 05/08/2024]
Abstract
The effective repair of large bone defects remains a major challenge due to its limited self-healing capacity. Inspired by the structure and function of the natural periosteum, an electrospun biomimetic periosteum is constructed to programmatically promote bone regeneration using natural bone healing mechanisms. The biomimetic periosteum is composed of a bilayer with an asymmetric structure in which an aligned electrospun poly(ε-caprolactone)/gelatin/deferoxamine (PCL/GEL/DFO) layer mimics the outer fibrous layer of the periosteum, while a random coaxial electrospun PCL/GEL/aspirin (ASP) shell and PCL/silicon nanoparticles (SiNPs) core layer mimics the inner cambial layer. The bilayer controls the release of ASP, DFO, and SiNPs to precisely regulate the inflammatory, angiogenic, and osteogenic phases of bone repair. The random coaxial inner layer can effectively antioxidize, promoting cell recruitment, proliferation, differentiation, and mineralization, while the aligned outer layer can promote angiogenesis and prevent fibroblast infiltration. In particular, different stages of bone repair are modulated in a rat skull defect model to achieve faster and better bone regeneration. The proposed biomimetic periosteum is expected to be a promising candidate for bone defect healing.
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Affiliation(s)
- Xingkai Zhao
- College of Biological Science and Engineering, Fuzhou University, No. 2 Xueyuan Road, Fuzhou, 350108, China
| | - Yu Zhuang
- College of Biological Science and Engineering, Fuzhou University, No. 2 Xueyuan Road, Fuzhou, 350108, China
| | - Yongjian Cao
- Fujian Key Laboratory of Medical Instrument and Pharmaceutical Technology, Fuzhou University, No. 2 Xueyuan Road, Fuzhou, 350108, China
| | - Fengying Cai
- College of Biological Science and Engineering, Fuzhou University, No. 2 Xueyuan Road, Fuzhou, 350108, China
| | - Yicheng Lv
- College of Biological Science and Engineering, Fuzhou University, No. 2 Xueyuan Road, Fuzhou, 350108, China
| | - Yunquan Zheng
- Fujian Key Laboratory of Medical Instrument and Pharmaceutical Technology, Fuzhou University, No. 2 Xueyuan Road, Fuzhou, 350108, China
| | - Jianmin Yang
- College of Biological Science and Engineering, Fuzhou University, No. 2 Xueyuan Road, Fuzhou, 350108, China
- Fujian Key Laboratory of Medical Instrument and Pharmaceutical Technology, Fuzhou University, No. 2 Xueyuan Road, Fuzhou, 350108, China
| | - Xianai Shi
- College of Biological Science and Engineering, Fuzhou University, No. 2 Xueyuan Road, Fuzhou, 350108, China
- Fujian Key Laboratory of Medical Instrument and Pharmaceutical Technology, Fuzhou University, No. 2 Xueyuan Road, Fuzhou, 350108, China
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14
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Cheng S, Wang KH, Zhou L, Sun ZJ, Zhang L. Tailoring Biomaterials Ameliorate Inflammatory Bone Loss. Adv Healthc Mater 2024; 13:e2304021. [PMID: 38288569 DOI: 10.1002/adhm.202304021] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2023] [Revised: 01/08/2024] [Indexed: 05/08/2024]
Abstract
Inflammatory diseases, such as rheumatoid arthritis, periodontitis, chronic obstructive pulmonary disease, and celiac disease, disrupt the delicate balance between bone resorption and formation, leading to inflammatory bone loss. Conventional approaches to tackle this issue encompass pharmaceutical interventions and surgical procedures. Nevertheless, pharmaceutical interventions exhibit limited efficacy, while surgical treatments impose trauma and significant financial burden upon patients. Biomaterials show outstanding spatiotemporal controllability, possess a remarkable specific surface area, and demonstrate exceptional reactivity. In the present era, the advancement of emerging biomaterials has bestowed upon more efficacious solutions for combatting the detrimental consequences of inflammatory bone loss. In this review, the advances of biomaterials for ameliorating inflammatory bone loss are listed. Additionally, the advantages and disadvantages of various biomaterials-mediated strategies are summarized. Finally, the challenges and perspectives of biomaterials are analyzed. This review aims to provide new possibilities for developing more advanced biomaterials toward inflammatory bone loss.
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Affiliation(s)
- Shi Cheng
- State Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, Key Laboratory of Oral Biomedicine Ministry of Education, Hubei Key Laboratory of Stomatology, School & Hospital of Stomatology, Frontier Science Center for Immunology and Metabolism, Wuhan University, Wuhan, 430079, P. R. China
| | - Kong-Huai Wang
- State Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, Key Laboratory of Oral Biomedicine Ministry of Education, Hubei Key Laboratory of Stomatology, School & Hospital of Stomatology, Frontier Science Center for Immunology and Metabolism, Wuhan University, Wuhan, 430079, P. R. China
| | - Lu Zhou
- State Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, Key Laboratory of Oral Biomedicine Ministry of Education, Hubei Key Laboratory of Stomatology, School & Hospital of Stomatology, Frontier Science Center for Immunology and Metabolism, Wuhan University, Wuhan, 430079, P. R. China
- Department of Endodontics, School and Hospital of Stomatology, Wuhan University, Wuhan, 430079, P. R. China
| | - Zhi-Jun Sun
- State Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, Key Laboratory of Oral Biomedicine Ministry of Education, Hubei Key Laboratory of Stomatology, School & Hospital of Stomatology, Frontier Science Center for Immunology and Metabolism, Wuhan University, Wuhan, 430079, P. R. China
| | - Lu Zhang
- State Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, Key Laboratory of Oral Biomedicine Ministry of Education, Hubei Key Laboratory of Stomatology, School & Hospital of Stomatology, Frontier Science Center for Immunology and Metabolism, Wuhan University, Wuhan, 430079, P. R. China
- Department of Endodontics, School and Hospital of Stomatology, Wuhan University, Wuhan, 430079, P. R. China
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15
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Liu Y, Lan D, Gao J, Deng C, Man Y. Guided bone regeneration for peri-implant augmentation: A retrospective study comparing two surgical techniques with a mean follow-up of 26 months. Clin Oral Implants Res 2024; 35:573-584. [PMID: 38467593 DOI: 10.1111/clr.14254] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2022] [Revised: 01/31/2024] [Accepted: 02/24/2024] [Indexed: 03/13/2024]
Abstract
OBJECTIVES To introduce a modified guided bone regeneration (GBR) technique using intact periosteum and deproteinized bovine bone mineral (DBBM) for peri-implant augmentation and compare the clinical outcomes with those of conventional GBR. MATERIALS AND METHODS Patients who received peri-implant augmentation in posterior sites between 2015 and 2021 were reviewed in this study. Group A was treated with a modified GBR technique, and Group B was treated with conventional GBR. For group comparison, propensity score matching was performed with a sensitivity analysis. The implant survival rate, dimensional changes in hard tissue, marginal bone loss (MBL), and peri-implant parameters were evaluated. RESULTS In total, 114 implants from 98 patients were included. The implant survival rates were 95.74% in Group A and 95.00% in Group B during the follow-up period. At 6 months, the median horizontal thickness was recorded at 0.87 mm (IQ1-IQ3 = 0.00-1.75 mm) in Group A, exhibiting a relatively lower value compared to the corresponding measurement of 0.98 mm (IQ1-IQ3 = 0.00-1.89 mm) in Group B (p = .937). Vertical height displayed no statistically significant intergroup difference between the two groups (p = .758). The mean follow-up period was 25.83 ± 12.93 months after loading in Group A and 27.47 ± 21.29 months in Group B (p = .761). MBL and peri-implant parameters were comparable between the two groups. CONCLUSIONS Within the limitations of this study, the modified GBR technique using intact periosteum and DBBM grafting might be a viable alternative to correct bone defects around implants in molar and premolar sites.
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Affiliation(s)
- Yeyu Liu
- Department of Oral Implantology, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan, China
- Department of Oral Implantology, The Affiliated Stomatological Hospital of Kunming Medical University, Kunming, Yunnan, China
| | - Dongping Lan
- Department of Oral Implantology, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan, China
| | - Jiayu Gao
- Department of Oral Implantology, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan, China
| | - Chen Deng
- Department of Oral Implantology, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan, China
| | - Yi Man
- Department of Oral Implantology, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan, China
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16
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Zhang J, Li X, Tian Y, Zou J, Gan D, Deng D, Jiao C, Yin Y, Tian B, Wu R, Chen F, He X. Harnessing Mechanical Stress with Viscoelastic Biomaterials for Periodontal Ligament Regeneration. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2024; 11:e2309562. [PMID: 38460171 PMCID: PMC11095218 DOI: 10.1002/advs.202309562] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/07/2023] [Revised: 02/15/2024] [Indexed: 03/11/2024]
Abstract
The viscoelasticity of mechanically sensitive tissues such as periodontal ligaments (PDLs) is key in maintaining mechanical homeostasis. Unfortunately, PDLs easily lose viscoelasticity (e.g., stress relaxation) during periodontitis or dental trauma, which disrupt cell-extracellular matrix (ECM) interactions and accelerates tissue damage. Here, Pluronic F127 diacrylate (F127DA) hydrogels with PDL-matched stress relaxation rates and high elastic moduli are developed. The hydrogel viscoelasticity is modulated without chemical cross-linking by controlling precursor concentrations. Under cytomechanical loading, F127DA hydrogels with fast relaxation rates significantly improved the fibrogenic differentiation potential of PDL stem cells (PDLSCs), while cells cultured on F127DA hydrogels with various stress relaxation rates exhibited similar fibrogenic differentiation potentials with limited cell spreading and traction forces under static conditions. Mechanically, faster-relaxing F127DA hydrogels leveraged cytomechanical loading to activate PDLSC mechanotransduction by upregulating integrin-focal adhesion kinase pathway and thus cytoskeletal rearrangement, reinforcing cell-ECM interactions. In vivo experiments confirm that faster-relaxing F127DA hydrogels significantly promoted PDL repair and reduced abnormal healing (e.g., root resorption and ankyloses) in delayed replantation of avulsed teeth. This study firstly investigated how matrix nonlinear viscoelasticity influences the fibrogenesis of PDLSCs under mechanical stimuli, and it reveals the underlying mechanobiology, which suggests novel strategies for PDL regeneration.
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Affiliation(s)
- Jiu‐Jiu Zhang
- State Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, National Clinical Research Center for Oral Diseases, Shaanxi International Joint Research Center for Oral Diseases, Department of Periodontology, School of Stomatology, The Fourth Military Medical UniversityXi'an710032China
| | - Xuan Li
- State Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, National Clinical Research Center for Oral Diseases, Shaanxi International Joint Research Center for Oral Diseases, Department of Periodontology, School of Stomatology, The Fourth Military Medical UniversityXi'an710032China
| | - Yi Tian
- State Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, National Clinical Research Center for Oral Diseases, Shaanxi International Joint Research Center for Oral Diseases, Department of Periodontology, School of Stomatology, The Fourth Military Medical UniversityXi'an710032China
| | - Jie‐Kang Zou
- State Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, National Clinical Research Center for Oral Diseases, Shaanxi International Joint Research Center for Oral Diseases, Department of Periodontology, School of Stomatology, The Fourth Military Medical UniversityXi'an710032China
| | - Dian Gan
- State Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, National Clinical Research Center for Oral Diseases, Shaanxi International Joint Research Center for Oral Diseases, Department of Periodontology, School of Stomatology, The Fourth Military Medical UniversityXi'an710032China
| | - Dao‐Kun Deng
- State Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, National Clinical Research Center for Oral Diseases, Shaanxi International Joint Research Center for Oral Diseases, Department of Periodontology, School of Stomatology, The Fourth Military Medical UniversityXi'an710032China
| | - Chen Jiao
- State Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, National Clinical Research Center for Oral Diseases, Shaanxi International Joint Research Center for Oral Diseases, Department of Periodontology, School of Stomatology, The Fourth Military Medical UniversityXi'an710032China
| | - Yuan Yin
- State Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, National Clinical Research Center for Oral Diseases, Shaanxi International Joint Research Center for Oral Diseases, Department of Periodontology, School of Stomatology, The Fourth Military Medical UniversityXi'an710032China
| | - Bei‐Min Tian
- State Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, National Clinical Research Center for Oral Diseases, Shaanxi International Joint Research Center for Oral Diseases, Department of Periodontology, School of Stomatology, The Fourth Military Medical UniversityXi'an710032China
| | - Rui‐Xin Wu
- State Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, National Clinical Research Center for Oral Diseases, Shaanxi International Joint Research Center for Oral Diseases, Department of Periodontology, School of Stomatology, The Fourth Military Medical UniversityXi'an710032China
| | - Fa‐Ming Chen
- State Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, National Clinical Research Center for Oral Diseases, Shaanxi International Joint Research Center for Oral Diseases, Department of Periodontology, School of Stomatology, The Fourth Military Medical UniversityXi'an710032China
| | - Xiao‐Tao He
- State Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, National Clinical Research Center for Oral Diseases, Shaanxi International Joint Research Center for Oral Diseases, Department of Periodontology, School of Stomatology, The Fourth Military Medical UniversityXi'an710032China
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17
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Kunrath MF, Giraldo-Osorno PM, Mendes K, Gomes ATPC, Rosa N, Barros M, Dahlin C. Unveiling the consequences of early human saliva contamination on membranes for guided bone regeneration. J Periodontal Res 2024. [PMID: 38644743 DOI: 10.1111/jre.13266] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2023] [Revised: 03/28/2024] [Accepted: 03/29/2024] [Indexed: 04/23/2024]
Abstract
AIMS GBR membranes have various surface properties designed to elicit positive responses in regenerative clinical procedures; dental clinicians attempt to employ techniques to prevent the direct interaction of contaminated oral fluids with these biomaterials. However, saliva is uninterruptedly exhibited in oral surgical procedures applying GBR membranes, suggesting a persistent interaction with biomaterials and the surrounding oral tissues. This fundamental study aimed to investigate potential alterations in the physical, chemical, and key biological properties of membranes for guided bone regeneration (GBR) caused by isolated early interaction with human saliva. METHODS A reproducible step-by-step protocol for collecting and interacting human saliva with membranes was developed. Subsequently, membranes were evaluated for their physicochemical properties, protein quantification, DNA, and 16S rRNA levels viability of two different cell lines at 1 and 7 days, and ALP activity. Non-interacted membranes and pure saliva of donors were applied as controls. RESULTS Qualitative morphological alterations were noticed; DNA extraction and 16S quantification revealed significantly higher values. Furthermore, the viability of HGF-1 and MC3T3-E1 cells was significantly (p < .05) reduced following saliva interaction with biodegradable membranes. Saliva contamination did not prejudice PTFE membranes significantly in any biological assay. CONCLUSIONS These outcomes demonstrated a susceptible response of biodegradable membranes to isolated early human saliva interaction, suggesting impairment of structural morphology, reduced viability to HGF-1 and MC3T3-E1, and higher absorption/adherence of DNA/16S rRNA. As a result, clinical oral procedures may need corresponding refinements.
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Affiliation(s)
- Marcel F Kunrath
- Department of Biomaterials, Institute of Clinical Sciences, Sahlgrenska Academy, University of Gothenburg, Göteborg, Sweden
- Center for Interdisciplinary Research in Health (CIIS), Faculty of Dental Medicine (FMD), Universidade Católica Portuguesa, Viseu, Portugal
- Dentistry Department, School of Health and Life Sciences, Pontifical Catholic University of Rio Grande do Sul (PUCRS), Porto Alegre, Brazil
| | - Paula Milena Giraldo-Osorno
- Department of Biomaterials, Institute of Clinical Sciences, Sahlgrenska Academy, University of Gothenburg, Göteborg, Sweden
| | - Karina Mendes
- Center for Interdisciplinary Research in Health (CIIS), Faculty of Dental Medicine (FMD), Universidade Católica Portuguesa, Viseu, Portugal
| | - Ana T P C Gomes
- Center for Interdisciplinary Research in Health (CIIS), Faculty of Dental Medicine (FMD), Universidade Católica Portuguesa, Viseu, Portugal
| | - Nuno Rosa
- Center for Interdisciplinary Research in Health (CIIS), Faculty of Dental Medicine (FMD), Universidade Católica Portuguesa, Viseu, Portugal
| | - Marlene Barros
- Center for Interdisciplinary Research in Health (CIIS), Faculty of Dental Medicine (FMD), Universidade Católica Portuguesa, Viseu, Portugal
| | - Christer Dahlin
- Department of Biomaterials, Institute of Clinical Sciences, Sahlgrenska Academy, University of Gothenburg, Göteborg, Sweden
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18
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Turri A, Omar O, Trobos M, Thomsen P, Dahlin C. Modulation of gene expression and bone formation by expanded and dense polytetrafluoroethylene membranes during guided bone regeneration: An experimental study. Clin Implant Dent Relat Res 2024; 26:266-280. [PMID: 37357340 DOI: 10.1111/cid.13241] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2023] [Revised: 05/28/2023] [Accepted: 06/07/2023] [Indexed: 06/27/2023]
Abstract
BACKGROUND Nonresorbable membranes promote bone formation during guided bone regeneration (GBR), yet the relationships between membrane properties and molecular changes in the surrounding tissue are largely unknown. AIM To compare the molecular events in the overlying soft tissue, the membrane, and the underlying bone defect during GBR using dual-layered expanded membranes versus dense polytetrafluoroethylene (PTFE) membranes. MATERIALS AND METHODS Rat femur defects were treated with either dense PTFE (d-PTFE) or dual-layered expanded PTFE (dual e-PTFE) or left untreated as a sham. Samples were collected after 6 and 28 days for gene expression, histology, and histomorphometry analyses. RESULTS The two membranes promoted the overall bone formation compared to sham. Defects treated with dual e-PTFE exhibited a significantly higher proportion of new bone in the top central region after 28 days. Compared to that in the sham, the soft tissue in the dual e-PTFE group showed 2-fold higher expression of genes related to regeneration (FGF-2 and FOXO1) and vascularization (VEGF). Furthermore, compared to cells in the d-PTFE group, cells in the dual e-PTFE showed 2.5-fold higher expression of genes related to osteogenic differentiation (BMP-2), regeneration (FGF-2 and COL1A1), and vascularization (VEGF), in parallel with lower expression of proinflammatory cytokines (IL-6 and TNF-α). Multiple correlations were found between the molecular activities in membrane-adherent cells and those in the soft tissue. CONCLUSION Selective surface modification of the two sides of the e-PTFE membrane constitutes a novel means of modulating the tissue response and promoting bone regeneration.
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Affiliation(s)
- Alberto Turri
- The Brånemark Clinic, Public Dental Service, Region Västra Götaland, Gothenburg, Sweden
- Department of Biomaterials, Institute of Clinical Sciences, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - Omar Omar
- Department of Biomedical Dental Sciences, College of Dentistry, Imam Abdulrahman Bin Faisal University, Dammam, Saudi Arabia
| | - Margarita Trobos
- Department of Biomaterials, Institute of Clinical Sciences, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - Peter Thomsen
- Department of Biomaterials, Institute of Clinical Sciences, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - Christer Dahlin
- Department of Biomaterials, Institute of Clinical Sciences, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
- Department of Oral, Maxillofacial Surgery and Research and Development, NU-Hospital Organisation, Trollhättan, Sweden
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19
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Zhao Y, Sun W, Wu X, Gao X, Song F, Duan B, Lu A, Yang H, Huang C. Janus Membrane with Intrafibrillarly Strontium-Apatite-Mineralized Collagen for Guided Bone Regeneration. ACS NANO 2024; 18:7204-7222. [PMID: 38373291 DOI: 10.1021/acsnano.3c12403] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/21/2024]
Abstract
Commercial collagen membranes face difficulty in guided bone regeneration (GBR) due to the absence of hierarchical structural design, effective interface management, and diverse bioactivity. Herein, a Janus membrane called SrJM is developed that consists of a porous collagen face to enhance osteogenic function and a dense face to maintain barrier function. Specifically, biomimetic intrafibrillar mineralization of collagen with strontium apatite is realized by liquid precursors of amorphous strontium phosphate. Polycaprolactone methacryloyl is further integrated on one side of the collagen as a dense face, which endows SrJM with mechanical support and a prolonged lifespan. In vitro experiments demonstrate that the dense face of SrJM acts as a strong barrier against fibroblasts, while the porous face significantly promotes cell adhesion and osteogenic differentiation through activation of calcium-sensitive receptor/integrin/Wnt signaling pathways. Meanwhile, SrJM effectively enhances osteogenesis and angiogenesis by recruiting stem cells and modulating osteoimmune response, thus creating an ideal microenvironment for bone regeneration. In vivo studies verify that the bone defect region guided by SrJM is completely repaired by newly formed vascularized bone. Overall, the outstanding performance of SrJM supports its ongoing development as a multifunctional GBR membrane, and this study provides a versatile strategy of fabricating collagen-based biomaterials for hard tissue regeneration.
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Affiliation(s)
- Yaning Zhao
- State Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, Key Laboratory of Oral Biomedicine Ministry of Education, Hubei Key Laboratory of Stomatology, School & Hospital of Stomatology, Wuhan University, Wuhan 430072, China
| | - Wei Sun
- State Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, Key Laboratory of Oral Biomedicine Ministry of Education, Hubei Key Laboratory of Stomatology, School & Hospital of Stomatology, Wuhan University, Wuhan 430072, China
| | - Xiaoyi Wu
- State Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, Key Laboratory of Oral Biomedicine Ministry of Education, Hubei Key Laboratory of Stomatology, School & Hospital of Stomatology, Wuhan University, Wuhan 430072, China
| | - Xin Gao
- State Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, Key Laboratory of Oral Biomedicine Ministry of Education, Hubei Key Laboratory of Stomatology, School & Hospital of Stomatology, Wuhan University, Wuhan 430072, China
| | - Fangfang Song
- State Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, Key Laboratory of Oral Biomedicine Ministry of Education, Hubei Key Laboratory of Stomatology, School & Hospital of Stomatology, Wuhan University, Wuhan 430072, China
| | - Bo Duan
- Interdisciplinary Institute of NMR and Molecular Sciences, School of Chemistry and Chemical Engineering, Wuhan University of Science and Technology, Wuhan 430081, China
| | - Ang Lu
- College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, China
| | - Hongye Yang
- State Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, Key Laboratory of Oral Biomedicine Ministry of Education, Hubei Key Laboratory of Stomatology, School & Hospital of Stomatology, Wuhan University, Wuhan 430072, China
| | - Cui Huang
- State Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, Key Laboratory of Oral Biomedicine Ministry of Education, Hubei Key Laboratory of Stomatology, School & Hospital of Stomatology, Wuhan University, Wuhan 430072, China
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20
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Alsalhi A. Applications of selected polysaccharides and proteins in dentistry: A review. Int J Biol Macromol 2024; 260:129215. [PMID: 38185301 DOI: 10.1016/j.ijbiomac.2024.129215] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2023] [Revised: 12/18/2023] [Accepted: 01/02/2024] [Indexed: 01/09/2024]
Abstract
In the last ten years, remarkable characteristics and a variety of functionalities have been created in biopolymeric materials for clinical dental applications. This review gives an overview of current knowledge of natural biopolymers (biological macromolecules) in terms of structural, functional, and property interactions. Natural biopolymers such as polysaccharides (chitosan, bacterial cellulose, hyaluronic acid, and alginate) and polypeptides (collagen and silk fibroin) have been discussed for dental uses. These biopolymers exhibit excellent properties alone and when employed with other composite molecules making them ideal for treatment of periodontitis, endodontics, dental pulp regeneration and oral wound healing. These biopolymers together with the composite materials exhibit better biocompatibility, inertness, elasticity and flexibility which makes them a leading candidate to be used for other dental applications like caries management, oral appliances, dentures, dental implants and oral surgeries.
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Affiliation(s)
- Abdullah Alsalhi
- Department of Pharmaceutics, College of Pharmacy, Jazan University, P.O. Box 114, Jazan 45142, Saudi Arabia.
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21
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Wang Y, Zhang X, Zhang S, Yang G, Li Y, Mao Y, Yang L, Chen J, Wang J. Development of a rapid-shaping and user-friendly membrane with long-lasting space maintenance for guided bone regeneration. J Mater Chem B 2024; 12:1495-1511. [PMID: 38223916 DOI: 10.1039/d3tb02137h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2024]
Abstract
The success of guided bone regeneration (GBR) surgery depends largely on the use of GBR membranes to maintain space for bone regeneration and prevent soft tissue ingrowth. However, currently available commercial degradable GBR membranes are often limited by poor space maintenance ability and require additional suture or nail for fixation. To overcome these limitations, we developed a rapid-shaping, adhesive, and user-friendly GBR membrane (PLGA film-PGN) with long-lasting space maintenance by immersing an electrospun poly(lactide-co-glycolic acid) film in a photo-crosslinkable hydrogel composed of polyethylene glycol diacrylate, gelatin methacryloyl, and nanosilicate (PGN). The PGN hydrogel significantly improved the mechanical strength of the PLGA film-PGN and endowed it with plasticity and adhesive properties, making it more maneuverable. The maximum bending force that the PLGA film-PGN could withstand was over 55 times higher than that of the HEAL ALL film (a commonly used commercial GBR membrane). PLGA film-PGN also promoted the proliferation and osteogenic differentiation of rBMSCs. According to a critical-size rat calvarial defect model, PLGA film-PGN maintained the space within the defect area and significantly enhanced bone formation 4 weeks after the surgery. To conclude, the study provided a novel perspective on GBR membrane design and the multifunctional PLGA film-PGN membrane demonstrated great potential for bone defect reconstruction.
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Affiliation(s)
- Yuting Wang
- State Key Laboratory of Oral Diseases & National Center for Stomatology & National Clinical Research Center for Oral Diseases & Department of Prosthodontics, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, Sichuan, China.
| | - Xin Zhang
- State Key Laboratory of Oral Diseases & National Center for Stomatology & National Clinical Research Center for Oral Diseases & Department of Prosthodontics, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, Sichuan, China.
| | - Shu Zhang
- State Key Laboratory of Oral Diseases & National Center for Stomatology & National Clinical Research Center for Oral Diseases & Department of Prosthodontics, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, Sichuan, China.
| | - Guangmei Yang
- State Key Laboratory of Oral Diseases & National Center for Stomatology & National Clinical Research Center for Oral Diseases & Department of Prosthodontics, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, Sichuan, China.
| | - Yuanyuan Li
- State Key Laboratory of Oral Diseases & National Center for Stomatology & National Clinical Research Center for Oral Diseases & Department of Prosthodontics, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, Sichuan, China.
| | - Yilin Mao
- State Key Laboratory of Oral Diseases & National Center for Stomatology & National Clinical Research Center for Oral Diseases & Department of Prosthodontics, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, Sichuan, China.
| | - Linxin Yang
- State Key Laboratory of Oral Diseases & National Center for Stomatology & National Clinical Research Center for Oral Diseases & Department of Prosthodontics, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, Sichuan, China.
| | - Junyu Chen
- State Key Laboratory of Oral Diseases & National Center for Stomatology & National Clinical Research Center for Oral Diseases & Department of Prosthodontics, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, Sichuan, China.
| | - Jian Wang
- State Key Laboratory of Oral Diseases & National Center for Stomatology & National Clinical Research Center for Oral Diseases & Department of Prosthodontics, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, Sichuan, China.
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22
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Chen K, Wang Y, Tang H, Niu X, Yang H, Bai Y, Gu X, Zheng Y. Fabrication of a Nanoscale Magnesium/Copper Metal-Organic Framework on Zn-Based Guided Bone Generation Membranes for Enhancing Osteogenesis, Angiogenesis, and Bacteriostasis Properties. ACS APPLIED MATERIALS & INTERFACES 2024; 16:5648-5665. [PMID: 38267388 DOI: 10.1021/acsami.3c16970] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/26/2024]
Abstract
Recently, zinc (Zn) and its alloys have demonstrated great potential as guided bone regeneration (GBR) membranes to treat the problems of insufficient alveolar bone volume and long-term osseointegration instability during dental implantology. However, bone regeneration is a complex process consisting of osteogenesis, angiogenesis, and antibacterial function. For now, the in vivo osteogenic performance and antibacterial activity of pure Zn are inadequate, and thus fabricating a platform to endow Zn membranes with multifunctions may be essential to address these issues. In this study, various bimetallic magnesium/copper metal-organic framework (Mg/Cu-MOF) coatings were fabricated and immobilized on pure Zn. The results indicated that the degradation rate and water stability of Mg/Cu-MOF coatings could be regulated by controlling the feeding ratio of Cu2+. As the coating and Zn substrate degraded, an alkaline microenvironment enriched with Zn2+, Mg2+, and Cu2+ was generated. It significantly improved calcium phosphate deposition, differentiation of osteoblasts, and vascularization of endothelial cells in the extracts. Among them, Mg/Cu1 showed the best comprehensive performance. The superior antibacterial activity of Mg/Cu1 was demonstrated in vitro and in vivo, which indicated significantly enhanced bacteriostatic activity against Gram-positive Staphylococcus aureus and Gram-negative Escherichia coli as compared to that of the bare sample. Bimetallic Mg/Cu-MOF coating could properly coordinate the multifunction on a Zn membrane and could be a promising platform for promoting its bone regeneration, which could pave the way for Zn-based materials to be used as barrier membranes in oral clinical trials.
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Affiliation(s)
- Kai Chen
- Key Laboratory of Biomechanics and Mechanobiology (Beihang University), Ministry of Education, Beijing Advanced Innovation Center for Biomedical Engineering, School of Biological Science and Medical Engineering, Beihang University, Beijing 100083, China
- School of Materials Science and Engineering, Peking University, Beijing 100871, China
| | - Yifan Wang
- Key Laboratory of Biomechanics and Mechanobiology (Beihang University), Ministry of Education, Beijing Advanced Innovation Center for Biomedical Engineering, School of Biological Science and Medical Engineering, Beihang University, Beijing 100083, China
| | - Hongyan Tang
- Key Laboratory of Biomechanics and Mechanobiology (Beihang University), Ministry of Education, Beijing Advanced Innovation Center for Biomedical Engineering, School of Biological Science and Medical Engineering, Beihang University, Beijing 100083, China
| | - Xufeng Niu
- Key Laboratory of Biomechanics and Mechanobiology (Beihang University), Ministry of Education, Beijing Advanced Innovation Center for Biomedical Engineering, School of Biological Science and Medical Engineering, Beihang University, Beijing 100083, China
| | - Hongtao Yang
- School of Engineering Medicine, Beihang University, Beijing 100083, China
| | - Yanjie Bai
- Stomatology Department, Peking University Third Hospital, Beijing 100191, China
| | - Xuenan Gu
- Key Laboratory of Biomechanics and Mechanobiology (Beihang University), Ministry of Education, Beijing Advanced Innovation Center for Biomedical Engineering, School of Biological Science and Medical Engineering, Beihang University, Beijing 100083, China
| | - Yufeng Zheng
- School of Materials Science and Engineering, Peking University, Beijing 100871, China
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23
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De Carvalho B, Dory E, Trus C, Pirson J, Germain L, Lecloux G, Lambert F, Rompen E. Biological performance of a novel bovine hydroxyapatite in a guided bone regeneration model: A preclinical study in a mandibular defect in dogs. Clin Implant Dent Relat Res 2024; 26:183-196. [PMID: 37789642 DOI: 10.1111/cid.13260] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2023] [Revised: 06/21/2023] [Accepted: 07/29/2023] [Indexed: 10/05/2023]
Abstract
OBJECTIVES This preclinical model study aims to evaluate the performance and safety of a novel hydroxyapatite biomaterial (Wishbone Hydroxyapatite, WHA) on guided bone regeneration compared to a commercially available deproteinized bovine bone mineral (Bio-Oss, BO). MATERIAL AND METHODS Twenty-four beagle dogs were allocated to three timepoint cohorts (4, 12, and 26 weeks) of eight animals each. In all animals, four critical-sized, independent wall mandibular defects were created (32 defects/cohort). Each animal received all four treatments, allocated randomly to separated defects: WHA + collagen membrane (M), BO + M, no treatment (Sham, Sh), and Sh + M. At each timepoint, the specimens were harvested for histologic and histomorphometric analyses to determine the newly formed bone and osteoconductivity. RESULTS At 4 weeks, bone regeneration was significantly higher for WHA + M (46.8%) when compared to BO + M (21.4%), Sh (15.1%), and Sh + M (23.1%) (p < 0.05); at 12 and 26 weeks, regeneration was similar for WHA and BO. Bone-to-material contact increased over time similarly for WHA + M and BO + M. From a safety point of view, inflammation attributed to WHA + M or BO + M was minimal; necrosis or fatty infiltrate was absent. CONCLUSIONS WHA + M resulted in higher bone regeneration rate than BO + M at 4 weeks. Both BO + M and WHA + M were more efficient than both Sh groups at all timepoints. Safety and biocompatibility of WHA was favorable and comparable to that of BO.
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Affiliation(s)
- Bruno De Carvalho
- Department of Periodontology, Oro-Dental and Implant Surgery, Dental Biomaterial Research Unit, Liège, Belgium
| | | | | | | | | | - Geoffrey Lecloux
- Department of Periodontology, Oro-Dental and Implant Surgery, Dental Biomaterial Research Unit, Liège, Belgium
| | - France Lambert
- Department of Periodontology, Oro-Dental and Implant Surgery, Dental Biomaterial Research Unit, Liège, Belgium
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24
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Guo W, Bu W, Mao Y, Wang E, Yang Y, Liu C, Guo F, Mai H, You H, Long Y. Magnesium Hydroxide as a Versatile Nanofiller for 3D-Printed PLA Bone Scaffolds. Polymers (Basel) 2024; 16:198. [PMID: 38256997 PMCID: PMC10820754 DOI: 10.3390/polym16020198] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2023] [Revised: 12/29/2023] [Accepted: 01/04/2024] [Indexed: 01/24/2024] Open
Abstract
Polylactic acid (PLA) has attracted much attention in bone tissue engineering due to its good biocompatibility and processability, but it still faces problems such as a slow degradation rate, acidic degradation product, weak biomineralization ability, and poor cell response, which limits its wider application in developing bone scaffolds. In this study, Mg(OH)2 nanoparticles were employed as a versatile nanofiller for developing PLA/Mg(OH)2 composite bone scaffolds using fused deposition modeling (FDM) 3D printing technology, and its mechanical, degradation, and biological properties were evaluated. The mechanical tests revealed that a 5 wt% addition of Mg(OH)2 improved the tensile and compressive strengths of the PLA scaffold by 20.50% and 63.97%, respectively. The soaking experiment in phosphate buffered solution (PBS) revealed that the alkaline degradation products of Mg(OH)2 neutralized the acidic degradation products of PLA, thus accelerating the degradation of PLA. The weight loss rate of the PLA/20Mg(OH)2 scaffold (15.40%) was significantly higher than that of PLA (0.15%) on day 28. Meanwhile, the composite scaffolds showed long-term Mg2+ release for more than 28 days. The simulated body fluid (SBF) immersion experiment indicated that Mg(OH)2 promoted the deposition of apatite and improved the biomineralization of PLA scaffolds. The cell culture of bone marrow mesenchymal stem cells (BMSCs) indicated that adding 5 wt% Mg(OH)2 effectively improved cell responses, including adhesion, proliferation, and osteogenic differentiation, due to the release of Mg2+. This study suggests that Mg(OH)2 can simultaneously address various issues related to polymer scaffolds, including degradation, mechanical properties, and cell interaction, having promising applications in tissue engineering.
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Affiliation(s)
- Wang Guo
- State Key Laboratory of Featured Metal Materials and Life-Cycle Safety for Composite Structures, Guangxi University, Nanning 530004, China; (W.B.); (Y.M.); (E.W.); (Y.Y.); (C.L.)
- Guangxi Key Laboratory of Manufacturing System and Advanced Manufacturing Technology, School of Mechanical Engineering, Guangxi University, Nanning 530004, China
| | - Wenlang Bu
- State Key Laboratory of Featured Metal Materials and Life-Cycle Safety for Composite Structures, Guangxi University, Nanning 530004, China; (W.B.); (Y.M.); (E.W.); (Y.Y.); (C.L.)
- Guangxi Key Laboratory of Manufacturing System and Advanced Manufacturing Technology, School of Mechanical Engineering, Guangxi University, Nanning 530004, China
| | - Yufeng Mao
- State Key Laboratory of Featured Metal Materials and Life-Cycle Safety for Composite Structures, Guangxi University, Nanning 530004, China; (W.B.); (Y.M.); (E.W.); (Y.Y.); (C.L.)
- Guangxi Key Laboratory of Manufacturing System and Advanced Manufacturing Technology, School of Mechanical Engineering, Guangxi University, Nanning 530004, China
| | - Enyu Wang
- State Key Laboratory of Featured Metal Materials and Life-Cycle Safety for Composite Structures, Guangxi University, Nanning 530004, China; (W.B.); (Y.M.); (E.W.); (Y.Y.); (C.L.)
- Guangxi Key Laboratory of Manufacturing System and Advanced Manufacturing Technology, School of Mechanical Engineering, Guangxi University, Nanning 530004, China
| | - Yanjuan Yang
- State Key Laboratory of Featured Metal Materials and Life-Cycle Safety for Composite Structures, Guangxi University, Nanning 530004, China; (W.B.); (Y.M.); (E.W.); (Y.Y.); (C.L.)
- Guangxi Key Laboratory of Manufacturing System and Advanced Manufacturing Technology, School of Mechanical Engineering, Guangxi University, Nanning 530004, China
| | - Chao Liu
- State Key Laboratory of Featured Metal Materials and Life-Cycle Safety for Composite Structures, Guangxi University, Nanning 530004, China; (W.B.); (Y.M.); (E.W.); (Y.Y.); (C.L.)
- Guangxi Key Laboratory of Manufacturing System and Advanced Manufacturing Technology, School of Mechanical Engineering, Guangxi University, Nanning 530004, China
| | - Feng Guo
- Guangxi Key Laboratory of Oral and Maxillofacial Rehabilitation and Reconstruction, Guangxi Medical University, Nanning 530021, China; (F.G.); (H.M.)
- Department of Oral and Maxillofacial Surgery, College of Stomatology, Guangxi Medical University, Nanning 530021, China
| | - Huaming Mai
- Guangxi Key Laboratory of Oral and Maxillofacial Rehabilitation and Reconstruction, Guangxi Medical University, Nanning 530021, China; (F.G.); (H.M.)
- Department of Oral and Maxillofacial Surgery, College of Stomatology, Guangxi Medical University, Nanning 530021, China
| | - Hui You
- State Key Laboratory of Featured Metal Materials and Life-Cycle Safety for Composite Structures, Guangxi University, Nanning 530004, China; (W.B.); (Y.M.); (E.W.); (Y.Y.); (C.L.)
- Guangxi Key Laboratory of Manufacturing System and Advanced Manufacturing Technology, School of Mechanical Engineering, Guangxi University, Nanning 530004, China
| | - Yu Long
- State Key Laboratory of Featured Metal Materials and Life-Cycle Safety for Composite Structures, Guangxi University, Nanning 530004, China; (W.B.); (Y.M.); (E.W.); (Y.Y.); (C.L.)
- Guangxi Key Laboratory of Manufacturing System and Advanced Manufacturing Technology, School of Mechanical Engineering, Guangxi University, Nanning 530004, China
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Saurav S, Sharma P, Kumar A, Tabassum Z, Girdhar M, Mamidi N, Mohan A. Harnessing Natural Polymers for Nano-Scaffolds in Bone Tissue Engineering: A Comprehensive Overview of Bone Disease Treatment. Curr Issues Mol Biol 2024; 46:585-611. [PMID: 38248340 PMCID: PMC10814241 DOI: 10.3390/cimb46010038] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2023] [Revised: 12/24/2023] [Accepted: 12/30/2023] [Indexed: 01/23/2024] Open
Abstract
Numerous surgeries are carried out to replace tissues that have been harmed by an illness or an accident. Due to various surgical interventions and the requirement of bone substitutes, the emerging field of bone tissue engineering attempts to repair damaged tissues with the help of scaffolds. These scaffolds act as template for bone regeneration by controlling the development of new cells. For the creation of functional tissues and organs, there are three elements of bone tissue engineering that play very crucial role: cells, signals and scaffolds. For the achievement of these aims, various types of natural polymers, like chitosan, chitin, cellulose, albumin and silk fibroin, have been used for the preparation of scaffolds. Scaffolds produced from natural polymers have many advantages: they are less immunogenic as well as being biodegradable, biocompatible, non-toxic and cost effective. The hierarchal structure of bone, from microscale to nanoscale, is mostly made up of organic and inorganic components like nanohydroxyapatite and collagen components. This review paper summarizes the knowledge and updates the information about the use of natural polymers for the preparation of scaffolds, with their application in recent research trends and development in the area of bone tissue engineering (BTE). The article extensively explores the related research to analyze the advancement of nanotechnology for the treatment of bone-related diseases and bone repair.
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Affiliation(s)
- Sushmita Saurav
- School of Bioengineering and Biosciences, Lovely Professional University, Phagwara 144401, Punjab, India; (S.S.); (P.S.); (Z.T.)
| | - Prashish Sharma
- School of Bioengineering and Biosciences, Lovely Professional University, Phagwara 144401, Punjab, India; (S.S.); (P.S.); (Z.T.)
| | - Anil Kumar
- Gene Regulation Laboratory, National Institute of Immunology, New Delhi 110067, Delhi, India;
| | - Zeba Tabassum
- School of Bioengineering and Biosciences, Lovely Professional University, Phagwara 144401, Punjab, India; (S.S.); (P.S.); (Z.T.)
| | - Madhuri Girdhar
- Division of Research and Development, Lovely Professional University, Phagwara 144401, Punjab, India;
| | - Narsimha Mamidi
- Wisconsin Centre for Nano Biosystems, School of Pharmacy, University of Wisconsin-Madison, Madison, WI 53705, USA
| | - Anand Mohan
- School of Bioengineering and Biosciences, Lovely Professional University, Phagwara 144401, Punjab, India; (S.S.); (P.S.); (Z.T.)
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26
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Zuo S, Peng Q, Luo T, Wang Y, Peng Z. Microwave-assisted synthesis of composites based on titanium and hydroxyapatite for dental implantation. Biomater Sci 2023; 12:92-107. [PMID: 37965798 DOI: 10.1039/d3bm01151h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2023]
Abstract
Titanium (Ti) and its alloys are widely used in clinical practice. As they are not bioactive, hydroxyapatite (HA) is commonly used to modify them. This study offered a review of microwave-assisted synthesis of composites based on Ti and HA for dental implantation by exploring their interaction mechanisms with microwave and features of two main techniques, namely microwave coating and sintering, along with current challenges and potential solutions in the field. It was shown that microwave coating enables rapid deposition of HA, but suffers from problems such as uneven coating thickness, poor integrity and unstable composition of the products. They can be solved by creating interlayers, combining the spin coating technique, etc. Unlike microwave coating, microwave sintering can effectively modify the mechanical properties of the composites, despite the shortcomings of excessive elastic moduli and potential HA decomposition. These issues are expected to be addressed by adding alloying elements and employing appropriate materials as space holders and ion-doped HA for sintering.
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Affiliation(s)
- Shangyong Zuo
- School of Minerals Processing and Bioengineering, Central South University, Changsha 410083, China
| | - Qian Peng
- Xiangya Stomatological Hospital, Central South University, Changsha 410008, China.
- Xiangya School of Stomatology, Central South University, Changsha 410008, China
- Hunan Key Laboratory of Oral Health Research, Central South University, Changsha 410008, China
| | - Ting Luo
- Xiangya Stomatological Hospital, Central South University, Changsha 410008, China.
- Xiangya School of Stomatology, Central South University, Changsha 410008, China
- Hunan Key Laboratory of Oral Health Research, Central South University, Changsha 410008, China
| | - Yuehong Wang
- Xiangya Stomatological Hospital, Central South University, Changsha 410008, China.
- Xiangya School of Stomatology, Central South University, Changsha 410008, China
- Hunan Key Laboratory of Oral Health Research, Central South University, Changsha 410008, China
| | - Zhiwei Peng
- School of Minerals Processing and Bioengineering, Central South University, Changsha 410083, China
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Chen W, Liu K, Liao X, Wu J, Chen L, Yang Z, Wang X, Liao Y, Fu G, Yang X, Wang Z, Qu G, Wang L, Zhou Y, Zhang Z, Yang C, Ni S, Zheng J, Tao TH, Zou D. Harmonizing Thickness and Permeability in Bone Tissue Engineering: A Novel Silk Fibroin Membrane Inspired by Spider Silk Dynamics. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2023:e2310697. [PMID: 38102951 DOI: 10.1002/adma.202310697] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/14/2023] [Revised: 11/22/2023] [Indexed: 12/17/2023]
Abstract
Guided bone regeneration gathers significant interest in the realm of bone tissue engineering; however, the interplay between membrane thickness and permeability continues to pose a challenge that can be addressed by the water-collecting mechanism of spider silk, where water droplets efficiently move from smooth filaments to rough conical nodules. Inspired by the natural design of spider silk, an innovative silk fibroin membrane is developed featuring directional fluid transportation via harmoniously integrating a smooth, dense layer with a rough, loose layer; conical microchannels are engineered in the smooth and compact layer. Consequently, double-layered membranes with cone-shaped microporous passageways (CSMP-DSF membrane) are designed for in situ bone repair. Through extensive in vitro testing, it is noted that the CSMP-DSF membrane guides liquid flow from the compact layer's surface to the loose layer, enabling rapid diffusion. Remarkably, the CSMP-DSF membrane demonstrates superior mechanical properties and resistance to bacterial adhesion. When applied in vivo, the CSMP-DSF membrane achieves results on par with the commercial Bio-Gide collagen membranes. This innovative integration of a cross-thickness wetting gradient structure offers a novel solution, harmonizing the often-conflicting requirements of material transport, mechanical strength, and barrier effectiveness, while also addressing issues related to tissue engineering scaffold perfusion.
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Affiliation(s)
- Wenze Chen
- National Clinical Research Center for Oral Diseases Shanghai Key Laboratory of Stomatology and Shanghai Research Institute of Stomatology Department of Oral Surgery Shanghai Ninth People's Hospital College of Stomatology, Shanghai Jiao Tong University School of Medicine, Shanghai, 200011, China
- College & Hospital of Stomatology, Anhui Medical University, Key Laboratory of Oral Diseases Research of Anhui Province, Hefei, 230032, China
| | - Keyin Liu
- State Key Laboratory of Transducer Technology, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences, Shanghai, 200050, China
| | - Xiaoyu Liao
- College & Hospital of Stomatology, Anhui Medical University, Key Laboratory of Oral Diseases Research of Anhui Province, Hefei, 230032, China
| | - Jing Wu
- National Clinical Research Center for Oral Diseases Shanghai Key Laboratory of Stomatology and Shanghai Research Institute of Stomatology Department of Oral Surgery Shanghai Ninth People's Hospital College of Stomatology, Shanghai Jiao Tong University School of Medicine, Shanghai, 200011, China
| | - Lu Chen
- National Clinical Research Center for Oral Diseases Shanghai Key Laboratory of Stomatology and Shanghai Research Institute of Stomatology Department of Oral Surgery Shanghai Ninth People's Hospital College of Stomatology, Shanghai Jiao Tong University School of Medicine, Shanghai, 200011, China
| | - Zihan Yang
- National Clinical Research Center for Oral Diseases Shanghai Key Laboratory of Stomatology and Shanghai Research Institute of Stomatology Department of Oral Surgery Shanghai Ninth People's Hospital College of Stomatology, Shanghai Jiao Tong University School of Medicine, Shanghai, 200011, China
| | - Xiping Wang
- National Clinical Research Center for Oral Diseases Shanghai Key Laboratory of Stomatology and Shanghai Research Institute of Stomatology Department of Oral Surgery Shanghai Ninth People's Hospital College of Stomatology, Shanghai Jiao Tong University School of Medicine, Shanghai, 200011, China
| | - Yinxiu Liao
- National Clinical Research Center for Oral Diseases Shanghai Key Laboratory of Stomatology and Shanghai Research Institute of Stomatology Department of Oral Surgery Shanghai Ninth People's Hospital College of Stomatology, Shanghai Jiao Tong University School of Medicine, Shanghai, 200011, China
| | - Guiqiang Fu
- College & Hospital of Stomatology, Anhui Medical University, Key Laboratory of Oral Diseases Research of Anhui Province, Hefei, 230032, China
| | - Xiaonian Yang
- College & Hospital of Stomatology, Anhui Medical University, Key Laboratory of Oral Diseases Research of Anhui Province, Hefei, 230032, China
| | - Zishuo Wang
- National Clinical Research Center for Oral Diseases Shanghai Key Laboratory of Stomatology and Shanghai Research Institute of Stomatology Department of Oral Surgery Shanghai Ninth People's Hospital College of Stomatology, Shanghai Jiao Tong University School of Medicine, Shanghai, 200011, China
| | - Guanlin Qu
- National Clinical Research Center for Oral Diseases Shanghai Key Laboratory of Stomatology and Shanghai Research Institute of Stomatology Department of Oral Surgery Shanghai Ninth People's Hospital College of Stomatology, Shanghai Jiao Tong University School of Medicine, Shanghai, 200011, China
| | - Li Wang
- National Clinical Research Center for Oral Diseases Shanghai Key Laboratory of Stomatology and Shanghai Research Institute of Stomatology Department of Oral Surgery Shanghai Ninth People's Hospital College of Stomatology, Shanghai Jiao Tong University School of Medicine, Shanghai, 200011, China
| | - Yuqiong Zhou
- National Clinical Research Center for Oral Diseases Shanghai Key Laboratory of Stomatology and Shanghai Research Institute of Stomatology Department of Oral Surgery Shanghai Ninth People's Hospital College of Stomatology, Shanghai Jiao Tong University School of Medicine, Shanghai, 200011, China
| | - ZhiYuan Zhang
- National Clinical Research Center for Oral Diseases Shanghai Key Laboratory of Stomatology and Shanghai Research Institute of Stomatology Department of Oral Surgery Shanghai Ninth People's Hospital College of Stomatology, Shanghai Jiao Tong University School of Medicine, Shanghai, 200011, China
| | - Chi Yang
- National Clinical Research Center for Oral Diseases Shanghai Key Laboratory of Stomatology and Shanghai Research Institute of Stomatology Department of Oral Surgery Shanghai Ninth People's Hospital College of Stomatology, Shanghai Jiao Tong University School of Medicine, Shanghai, 200011, China
| | - Siyuan Ni
- State Key Laboratory of Transducer Technology, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences, Shanghai, 200050, China
| | - Jisi Zheng
- National Clinical Research Center for Oral Diseases Shanghai Key Laboratory of Stomatology and Shanghai Research Institute of Stomatology Department of Oral Surgery Shanghai Ninth People's Hospital College of Stomatology, Shanghai Jiao Tong University School of Medicine, Shanghai, 200011, China
| | - Tiger H Tao
- State Key Laboratory of Transducer Technology, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences, Shanghai, 200050, China
- Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing, 100049, China
- School of Physical Science and Technology, ShanghaiTech University, Shanghai, 200031, China
- Institute of Brain-Intelligence Technology, Zhangjiang Laboratory, Shanghai, 200031, China
- Shanghai Research Center for Brain Science and Brain-Inspired Intelligence, Shanghai, 200031, China
| | - Duohong Zou
- National Clinical Research Center for Oral Diseases Shanghai Key Laboratory of Stomatology and Shanghai Research Institute of Stomatology Department of Oral Surgery Shanghai Ninth People's Hospital College of Stomatology, Shanghai Jiao Tong University School of Medicine, Shanghai, 200011, China
- College & Hospital of Stomatology, Anhui Medical University, Key Laboratory of Oral Diseases Research of Anhui Province, Hefei, 230032, China
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Antoshin A, Gostev M, Khristidis Y, Giliazova A, Voloshin S, Blagushina N, Smirnova O, Diachkova E, Istranova E, Usanova A, Solodov N, Fayzullin A, Ivanova E, Sadchikova E, Vergara Bashkatova MN, Drakina O, Tarasenko S, Timashev P. Electrophoretically Co-Deposited Collagen-Lactoferrin Membranes with Enhanced Pro-Regenerative Properties for Oral Soft Tissue Regeneration. Int J Mol Sci 2023; 24:17330. [PMID: 38139159 PMCID: PMC10743871 DOI: 10.3390/ijms242417330] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2023] [Revised: 12/01/2023] [Accepted: 12/07/2023] [Indexed: 12/24/2023] Open
Abstract
The quality of soft tissue defect regeneration after dental surgeries largely determines their final success. Collagen membranes have been proposed for the healing of such defects, but in some cases, they do not guarantee a sufficient volume of the regenerated tissue and vascularization. For this purpose, lactoferrin, a protein with natural pro-regenerative, anti-inflammatory, and pro-angiogenic activity, can be added to collagen. In this article, we used a semipermeable barrier-assisted electrophoretic deposition (SBA-EPD) method for the production of collagen-lactoferrin membranes. The membrane structure was studied by SEM, and its mechanical properties were shown. The lactoferrin release kinetics were shown by ELISA within 75 h. When tested in vitro, we demonstrated that the collagen-lactoferrin membranes significantly increased the proliferation of keratinocytes (HaCaT) and fibroblasts (977hTERT) compared to blank collagen membranes. In vivo, on the vestibuloplasty and free gingival graft harvesting models, we showed that collagen-lactoferrin membranes decreased the wound inflammation and increased the healing rates and regeneration quality. In some parameters, collagen-lactoferrin membranes outperformed not only blank collagen membranes, but also the commercial membrane Mucograft®. Thus, we proved that collagen-lactoferrin membranes produced by the SBA-EPD method may be a valuable alternative to commercially used membranes for soft tissue regeneration in the oral cavity.
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Affiliation(s)
- Artem Antoshin
- Institute for Regenerative Medicine, Sechenov University, 8-2 Trubetskaya St., 119048 Moscow, Russia
| | - Mikhail Gostev
- Department of Oral Surgery, Borovskiy Institute of Dentistry, Sechenov University, 8-2 Trubetskaya St., 119048 Moscow, Russia
| | - Yana Khristidis
- Institute for Regenerative Medicine, Sechenov University, 8-2 Trubetskaya St., 119048 Moscow, Russia
| | - Aliia Giliazova
- Institute for Regenerative Medicine, Sechenov University, 8-2 Trubetskaya St., 119048 Moscow, Russia
| | - Sergei Voloshin
- Institute for Regenerative Medicine, Sechenov University, 8-2 Trubetskaya St., 119048 Moscow, Russia
| | - Nataliia Blagushina
- Department of Oral Surgery, Borovskiy Institute of Dentistry, Sechenov University, 8-2 Trubetskaya St., 119048 Moscow, Russia
| | - Olga Smirnova
- Institute for Regenerative Medicine, Sechenov University, 8-2 Trubetskaya St., 119048 Moscow, Russia
| | - Ekaterina Diachkova
- Department of Oral Surgery, Borovskiy Institute of Dentistry, Sechenov University, 8-2 Trubetskaya St., 119048 Moscow, Russia
| | - Elena Istranova
- Institute for Regenerative Medicine, Sechenov University, 8-2 Trubetskaya St., 119048 Moscow, Russia
| | - Anna Usanova
- Institute for Regenerative Medicine, Sechenov University, 8-2 Trubetskaya St., 119048 Moscow, Russia
| | - Nikolai Solodov
- Department of Oral Surgery, Borovskiy Institute of Dentistry, Sechenov University, 8-2 Trubetskaya St., 119048 Moscow, Russia
| | - Alexey Fayzullin
- Institute for Regenerative Medicine, Sechenov University, 8-2 Trubetskaya St., 119048 Moscow, Russia
| | - Elena Ivanova
- Institute for Regenerative Medicine, Sechenov University, 8-2 Trubetskaya St., 119048 Moscow, Russia
| | - Elena Sadchikova
- Institute of Gene Biology, Russian Academy of Sciences, 34/5 Vavilov St., 119344 Moscow, Russia
| | | | - Olga Drakina
- Department of Operative Surgery and Topographic Anatomy, Sechenov University, 8-2 Trubetskaya St., 119048 Moscow, Russia
| | - Svetlana Tarasenko
- Department of Oral Surgery, Borovskiy Institute of Dentistry, Sechenov University, 8-2 Trubetskaya St., 119048 Moscow, Russia
| | - Peter Timashev
- Institute for Regenerative Medicine, Sechenov University, 8-2 Trubetskaya St., 119048 Moscow, Russia
- World-Class Research Center "Digital Biodesign and Personalized Healthcare", Sechenov University, 8-2 Trubetskaya St., 119048 Moscow, Russia
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Wang D, Zhou X, Cao H, Zhang H, Wang D, Guo J, Wang J. Barrier membranes for periodontal guided bone regeneration: a potential therapeutic strategy. FRONTIERS IN MATERIALS 2023; 10. [DOI: 10.3389/fmats.2023.1220420] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/26/2024]
Abstract
Periodontal disease is one of the most common oral diseases with the highest incidence world-wide. In particular, the treatment of periodontal bone defects caused by periodontitis has attracted extensive attention. Guided bone regeneration (GBR) has been recognized as advanced treatment techniques for periodontal bone defects. GBR technique relies on the application of barrier membranes to protect the bone defects. The commonly used GBR membranes are resorbable and non-resorbable. Resorbable GBR membranes are divided into natural polymer resorbable membranes and synthetic polymer resorbable membranes. Each has its advantages and disadvantages. The current research focuses on exploring and improving its preparation and application. This review summarizes the recent literature on the application of GBR membranes to promote the regeneration of periodontal bone defects, elaborates on GBR development strategies, specific applications, and the progress of inducing periodontal bone regeneration to provide a theoretical basis and ideas for the future application of GBR membranes to promote the repair of periodontal bone defects.
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30
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Choi W, Mangal U, Park JY, Kim JY, Jun T, Jung JW, Choi M, Jung S, Lee M, Na JY, Ryu DY, Kim JM, Kwon JS, Koh WG, Lee S, Hwang PTJ, Lee KJ, Jung UW, Cha JK, Choi SH, Hong J. Occlusive membranes for guided regeneration of inflamed tissue defects. Nat Commun 2023; 14:7687. [PMID: 38001080 PMCID: PMC10673922 DOI: 10.1038/s41467-023-43428-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2023] [Accepted: 11/08/2023] [Indexed: 11/26/2023] Open
Abstract
Guided bone regeneration aided by the application of occlusive membranes is a promising therapy for diverse inflammatory periodontal diseases. Symbiosis, homeostasis between the host microbiome and cells, occurs in the oral environment under normal, but not pathologic, conditions. Here, we develop a symbiotically integrating occlusive membrane by mimicking the tooth enamel growth or multiple nucleation biomineralization processes. We perform human saliva and in vivo canine experiments to confirm that the symbiotically integrating occlusive membrane induces a symbiotic healing environment. Moreover, we show that the membrane exhibits tractability and enzymatic stability, maintaining the healing space during the entire guided bone regeneration therapy period. We apply the symbiotically integrating occlusive membrane to treat inflammatory-challenged cases in vivo, namely, the open and closed healing of canine premolars with severe periodontitis. We find that the membrane promotes symbiosis, prevents negative inflammatory responses, and improves cellular integration. Finally, we show that guided bone regeneration therapy with the symbiotically integrating occlusive membrane achieves fast healing of gingival soft tissue and alveolar bone.
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Affiliation(s)
- Woojin Choi
- Department of Chemical and Biomolecular Engineering, College of Engineering, Yonsei University, Seoul, 03722, Republic of Korea
| | - Utkarsh Mangal
- Department of Orthodontics, Institute of Craniofacial Deformity, Yonsei University College of Dentistry, Seoul, 03722, Republic of Korea
| | - Jin-Young Park
- Department of Periodontology, Research Institute for Periodontal Regeneration, Yonsei University College of Dentistry, Seoul, 03722, Republic of Korea
| | - Ji-Yeong Kim
- Department of Orthodontics, Institute of Craniofacial Deformity, Yonsei University College of Dentistry, Seoul, 03722, Republic of Korea
| | - Taesuk Jun
- Department of Chemical and Biomolecular Engineering, College of Engineering, Yonsei University, Seoul, 03722, Republic of Korea
| | - Ju Won Jung
- Department of Oral Microbiology and Immunology, School of Dentistry and Dental Research Institute, Seoul National University, Seoul, 08826, Republic of Korea
| | - Moonhyun Choi
- Department of Chemical and Biomolecular Engineering, College of Engineering, Yonsei University, Seoul, 03722, Republic of Korea
| | - Sungwon Jung
- Department of Chemical and Biomolecular Engineering, College of Engineering, Yonsei University, Seoul, 03722, Republic of Korea
| | - Milae Lee
- Department of Chemical and Biomolecular Engineering, College of Engineering, Yonsei University, Seoul, 03722, Republic of Korea
| | - Ji-Yeong Na
- Department of Periodontology, Research Institute for Periodontal Regeneration, Yonsei University College of Dentistry, Seoul, 03722, Republic of Korea
| | - Du Yeol Ryu
- Department of Chemical and Biomolecular Engineering, College of Engineering, Yonsei University, Seoul, 03722, Republic of Korea
| | - Jin Man Kim
- Department of Oral Microbiology and Immunology, School of Dentistry and Dental Research Institute, Seoul National University, Seoul, 08826, Republic of Korea
| | - Jae-Sung Kwon
- Department and Research Institute of Dental Biomaterials and Bioengineering, BK21 FOUR Project, Yonsei University College of Dentistry, Seoul, 03722, Republic of Korea
| | - Won-Gun Koh
- Department of Chemical and Biomolecular Engineering, College of Engineering, Yonsei University, Seoul, 03722, Republic of Korea
| | - Sangmin Lee
- School of Mechanical Engineering, Chung-ang University, 84, Heukserok-ro, Dongjak-gu, Seoul, 06974, Republic of Korea
| | - Patrick T J Hwang
- Cardiovascular Institute, Rowan-Virtua School of Translational Biomedical Engineering & Sciences, Rowan University, 201 Mullica Hill Rd., Glassboro, NJ, 08028, USA
| | - Kee-Joon Lee
- Department of Orthodontics, Institute of Craniofacial Deformity, Yonsei University College of Dentistry, Seoul, 03722, Republic of Korea
| | - Ui-Won Jung
- Department of Periodontology, Research Institute for Periodontal Regeneration, Yonsei University College of Dentistry, Seoul, 03722, Republic of Korea
| | - Jae-Kook Cha
- Department of Periodontology, Research Institute for Periodontal Regeneration, Yonsei University College of Dentistry, Seoul, 03722, Republic of Korea.
| | - Sung-Hwan Choi
- Department of Orthodontics, Institute of Craniofacial Deformity, Yonsei University College of Dentistry, Seoul, 03722, Republic of Korea.
| | - Jinkee Hong
- Department of Chemical and Biomolecular Engineering, College of Engineering, Yonsei University, Seoul, 03722, Republic of Korea.
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Ahmed Omar N, Roque J, Galvez P, Siadous R, Chassande O, Catros S, Amédée J, Roques S, Durand M, Bergeaut C, Bidault L, Aprile P, Letourneur D, Fricain JC, Fenelon M. Development of Novel Polysaccharide Membranes for Guided Bone Regeneration: In Vitro and In Vivo Evaluations. Bioengineering (Basel) 2023; 10:1257. [PMID: 38002381 PMCID: PMC10669683 DOI: 10.3390/bioengineering10111257] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2023] [Revised: 10/16/2023] [Accepted: 10/20/2023] [Indexed: 11/26/2023] Open
Abstract
INTRODUCTION Guided bone regeneration (GBR) procedures require selecting suitable membranes for oral surgery. Pullulan and/or dextran-based polysaccharide materials have shown encouraging results in bone regeneration as bone substitutes but have not been used to produce barrier membranes. The present study aimed to develop and characterize pullulan/dextran-derived membranes for GBR. MATERIALS AND METHODS Two pullulan/dextran-based membranes, containing or not hydroxyapatite (HA) particles, were developed. In vitro, cytotoxicity evaluation was performed using human bone marrow mesenchymal stem cells (hBMSCs). Biocompatibility was assessed on rats in a subcutaneous model for up to 16 weeks. In vivo, rat femoral defects were created on 36 rats to compare the two pullulan/dextran-based membranes with a commercial collagen membrane (Bio-Gide®). Bone repair was assessed radiologically and histologically. RESULTS Both polysaccharide membranes demonstrated cytocompatibility and biocompatibility. Micro-computed tomography (micro-CT) analyses at two weeks revealed that the HA-containing membrane promoted a significant increase in bone formation compared to Bio-Gide®. At one month, similar effects were observed among the three membranes in terms of bone regeneration. CONCLUSION The developed pullulan/dextran-based membranes evidenced biocompatibility without interfering with bone regeneration and maturation. The HA-containing membrane, which facilitated early bone regeneration and offered adequate mechanical support, showed promising potential for GBR procedures.
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Affiliation(s)
- Naïma Ahmed Omar
- Laboratory for Tissue Bioengineering, University of Bordeaux, INSERM 1026, F-33076 Bordeaux, France; (N.A.O.); (O.C.); (M.F.)
| | - Jéssica Roque
- Laboratory for Tissue Bioengineering, University of Bordeaux, INSERM 1026, F-33076 Bordeaux, France; (N.A.O.); (O.C.); (M.F.)
| | - Paul Galvez
- Laboratory for Tissue Bioengineering, University of Bordeaux, INSERM 1026, F-33076 Bordeaux, France; (N.A.O.); (O.C.); (M.F.)
| | - Robin Siadous
- Laboratory for Tissue Bioengineering, University of Bordeaux, INSERM 1026, F-33076 Bordeaux, France; (N.A.O.); (O.C.); (M.F.)
| | - Olivier Chassande
- Laboratory for Tissue Bioengineering, University of Bordeaux, INSERM 1026, F-33076 Bordeaux, France; (N.A.O.); (O.C.); (M.F.)
| | - Sylvain Catros
- Laboratory for Tissue Bioengineering, University of Bordeaux, INSERM 1026, F-33076 Bordeaux, France; (N.A.O.); (O.C.); (M.F.)
- Department of Oral Surgery, University Hospital of Bordeaux, F-33076 Bordeaux, France
| | - Joëlle Amédée
- Laboratory for Tissue Bioengineering, University of Bordeaux, INSERM 1026, F-33076 Bordeaux, France; (N.A.O.); (O.C.); (M.F.)
| | - Samantha Roques
- Centre d’Investigation Clinique de Bordeaux (CIC 1401), University Hospital of Bordeaux, INSERM, F-33000 Bordeaux, France (M.D.)
| | - Marlène Durand
- Centre d’Investigation Clinique de Bordeaux (CIC 1401), University Hospital of Bordeaux, INSERM, F-33000 Bordeaux, France (M.D.)
| | - Céline Bergeaut
- Siltiss, SA, Zac de la Nau, 19240 Saint-Viance, France; (C.B.); (L.B.)
| | - Laurent Bidault
- Siltiss, SA, Zac de la Nau, 19240 Saint-Viance, France; (C.B.); (L.B.)
| | - Paola Aprile
- Laboratory for Vascular Translational Science (LVTS), X Bichat Hospital, University Paris Cité & University Sorbonne Paris Nord, INSERM 1148, F-75018 Paris, France
| | - Didier Letourneur
- Siltiss, SA, Zac de la Nau, 19240 Saint-Viance, France; (C.B.); (L.B.)
- Laboratory for Vascular Translational Science (LVTS), X Bichat Hospital, University Paris Cité & University Sorbonne Paris Nord, INSERM 1148, F-75018 Paris, France
| | - Jean-Christophe Fricain
- Laboratory for Tissue Bioengineering, University of Bordeaux, INSERM 1026, F-33076 Bordeaux, France; (N.A.O.); (O.C.); (M.F.)
- Department of Oral Surgery, University Hospital of Bordeaux, F-33076 Bordeaux, France
- Centre d’Investigation Clinique de Bordeaux (CIC 1401), University Hospital of Bordeaux, INSERM, F-33000 Bordeaux, France (M.D.)
| | - Mathilde Fenelon
- Laboratory for Tissue Bioengineering, University of Bordeaux, INSERM 1026, F-33076 Bordeaux, France; (N.A.O.); (O.C.); (M.F.)
- Department of Oral Surgery, University Hospital of Bordeaux, F-33076 Bordeaux, France
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Cárdenas-Aguazaco W, Camacho B, Gómez-Pachón EY, Lara-Bertrand AL, Silva-Cote I. Electrospun Scaffolds of Polylactic Acid, Collagen, and Amorphous Calcium Phosphate for Bone Repair. Pharmaceutics 2023; 15:2529. [PMID: 38004509 PMCID: PMC10674189 DOI: 10.3390/pharmaceutics15112529] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2023] [Revised: 10/14/2023] [Accepted: 10/16/2023] [Indexed: 11/26/2023] Open
Abstract
Most electrospun scaffolds for bone tissue engineering typically use hydroxyapatite (HA) or beta tricalcium phosphate (β-TCP). However, the biological activity of these crystalline compounds can be limited due to their low solubility. Therefore, amorphous calcium phosphate (ACP) may be an alternative in bone repair scaffolds. This study analyzes the morphology, porosity, mechanical strength, and surface chemistry of electrospun scaffolds composed of polylactic acid and collagen integrated with hydroxyapatite (MHAP) or amorphous calcium phosphate (MACP). In addition, the in vitro biocompatibility, osteogenic differentiation, and growth factor production associated with bone repair using human Wharton's jelly-derived mesenchymal stem cells (hWJ-MSCs) are evaluated. The results show that the electrospun MHAP and MACP scaffolds exhibit a fibrous morphology with interconnected pores. Both scaffolds exhibit favorable biocompatibility and stimulate the proliferation and osteogenesis of hWJ-MSCs. However, cell adhesion and osteocalcin production are greater in the MACP scaffold compared to the MHAP scaffold. In addition, the MACP scaffold shows significant production of bone-repair-related growth factors such as transforming growth factor-beta 1 (TGF-β1), providing a solid basis for its use in bone tissue engineering.
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Affiliation(s)
- William Cárdenas-Aguazaco
- Instituto Distrital de Ciencia, Biotecnología e Innovación en Salud-IDCBIS, Bogotá 111611, Colombia; (W.C.-A.); (B.C.); (A.L.L.-B.)
| | - Bernardo Camacho
- Instituto Distrital de Ciencia, Biotecnología e Innovación en Salud-IDCBIS, Bogotá 111611, Colombia; (W.C.-A.); (B.C.); (A.L.L.-B.)
| | - Edwin Yesid Gómez-Pachón
- Facultad Duitama, Universidad Pedagógica y Tecnológica de Colombia-UPTC, Duitama 150462, Colombia;
| | - Adriana Lorena Lara-Bertrand
- Instituto Distrital de Ciencia, Biotecnología e Innovación en Salud-IDCBIS, Bogotá 111611, Colombia; (W.C.-A.); (B.C.); (A.L.L.-B.)
| | - Ingrid Silva-Cote
- Instituto Distrital de Ciencia, Biotecnología e Innovación en Salud-IDCBIS, Bogotá 111611, Colombia; (W.C.-A.); (B.C.); (A.L.L.-B.)
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Jiao Y, Okada M, Nutan B, Nagaoka N, Bikharudin A, Musa R, Matsumoto T. Fabrication of a Fish-Bone-Inspired Inorganic-Organic Composite Membrane. Polymers (Basel) 2023; 15:4190. [PMID: 37896434 PMCID: PMC10611054 DOI: 10.3390/polym15204190] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2023] [Revised: 10/16/2023] [Accepted: 10/19/2023] [Indexed: 10/29/2023] Open
Abstract
Biological materials have properties like great strength and flexibility that are not present in synthetic materials. Using the ribs of crucian carp as a reference, we investigated the mechanisms behind the high mechanical properties of this rib bone, and found highly oriented layers of calcium phosphate (CaP) and collagen fibers. To fabricate a fish-rib-bone-mimicking membrane with similar structure and mechanical properties, this study involves (1) the rapid synthesis of plate-like CaP crystals, (2) the layering of CaP-gelatin hydrogels by gradual drying, and (3) controlling the shape of composite membranes using porous gypsum molds. Finally, as a result of optimizing the compositional ratio of CaP filler and gelatin hydrogel, a CaP filler content of 40% provided the optimal mechanical properties of toughness and stiffness similar to fish bone. Due to the rigidity, flexibility, and ease of shape control of the composite membrane materials, this membrane could be applied as a guided bone regeneration (GBR) membrane.
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Affiliation(s)
- YuYang Jiao
- Department of Biomaterials, Graduate School of Medicine, Dentistry and Pharmaceutical Science, Okayama University, 2-5-1 Shikata-cho, Kita-ku, Okayama 700-8558, Japan; (Y.J.); (M.O.); (B.N.); (A.B.); (R.M.)
| | - Masahiro Okada
- Department of Biomaterials, Graduate School of Medicine, Dentistry and Pharmaceutical Science, Okayama University, 2-5-1 Shikata-cho, Kita-ku, Okayama 700-8558, Japan; (Y.J.); (M.O.); (B.N.); (A.B.); (R.M.)
| | - Bhingaradiya Nutan
- Department of Biomaterials, Graduate School of Medicine, Dentistry and Pharmaceutical Science, Okayama University, 2-5-1 Shikata-cho, Kita-ku, Okayama 700-8558, Japan; (Y.J.); (M.O.); (B.N.); (A.B.); (R.M.)
| | - Noriyuki Nagaoka
- Advanced Research Center for Oral and Craniofacial Sciences, Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University, 2-5-1 Shikata-cho, Kita-ku, Okayama 700-8558, Japan;
| | - Ahmad Bikharudin
- Department of Biomaterials, Graduate School of Medicine, Dentistry and Pharmaceutical Science, Okayama University, 2-5-1 Shikata-cho, Kita-ku, Okayama 700-8558, Japan; (Y.J.); (M.O.); (B.N.); (A.B.); (R.M.)
| | - Randa Musa
- Department of Biomaterials, Graduate School of Medicine, Dentistry and Pharmaceutical Science, Okayama University, 2-5-1 Shikata-cho, Kita-ku, Okayama 700-8558, Japan; (Y.J.); (M.O.); (B.N.); (A.B.); (R.M.)
| | - Takuya Matsumoto
- Department of Biomaterials, Graduate School of Medicine, Dentistry and Pharmaceutical Science, Okayama University, 2-5-1 Shikata-cho, Kita-ku, Okayama 700-8558, Japan; (Y.J.); (M.O.); (B.N.); (A.B.); (R.M.)
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Nayak VV, Mirsky NA, Slavin BV, Witek L, Coelho PG, Tovar N. Non-Thermal Plasma Treatment of Poly(tetrafluoroethylene) Dental Membranes and Its Effects on Cellular Adhesion. MATERIALS (BASEL, SWITZERLAND) 2023; 16:6633. [PMID: 37895615 PMCID: PMC10608478 DOI: 10.3390/ma16206633] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/08/2023] [Revised: 10/03/2023] [Accepted: 10/05/2023] [Indexed: 10/29/2023]
Abstract
Non-resorbable dental barrier membranes entail the risk of dehiscence due to their smooth and functionally inert surfaces. Non-thermal plasma (NTP) treatment has been shown to increase the hydrophilicity of a biomaterials and could thereby enhance cellular adhesion. This study aimed to elucidate the role of allyl alcohol NTP treatment of poly(tetrafluoroethylene) in its cellular adhesion. The materials (non-treated PTFE membranes (NTMem) and NTP-treated PTFE membranes (PTMem)) were subjected to characterization using scanning electron microscopy (SEM), contact angle measurements, X-ray photoelectron spectroscopy (XPS), and electron spectroscopy for chemical analysis (ESCA). Cells were seeded upon the different membranes, and cellular adhesion was analyzed qualitatively and quantitatively using fluorescence labeling and a hemocytometer, respectively. PTMem exhibited higher surface energies and the incorporation of reactive functional groups. NTP altered the surface topography and chemistry of PTFE membranes, as seen through SEM, XPS and ESCA, with partial defluorination and polymer chain breakage. Fluorescence labeling indicated significantly higher cell populations on PTMem relative to its untreated counterparts (NTMem). The results of this study support the potential applicability of allyl alcohol NTP treatment for polymeric biomaterials such as PTFE-to increase cellular adhesion for use as dental barrier membranes.
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Affiliation(s)
- Vasudev Vivekanand Nayak
- Department of Biochemistry and Molecular Biology, Miller School of Medicine, University of Miami, Miami, FL 33136, USA; (V.V.N.); (N.A.M.); (B.V.S.); (P.G.C.)
| | - Nicholas Alexander Mirsky
- Department of Biochemistry and Molecular Biology, Miller School of Medicine, University of Miami, Miami, FL 33136, USA; (V.V.N.); (N.A.M.); (B.V.S.); (P.G.C.)
| | - Blaire V. Slavin
- Department of Biochemistry and Molecular Biology, Miller School of Medicine, University of Miami, Miami, FL 33136, USA; (V.V.N.); (N.A.M.); (B.V.S.); (P.G.C.)
| | - Lukasz Witek
- Biomaterials Division, College of Dentistry, New York University, New York, NY 10010, USA;
- Department of Biomedical Engineering, Tandon School of Engineering, New York University, 6 MetroTech Center, Brooklyn, NY 11201, USA
- Hansjörg Wyss Department of Plastic Surgery, Grossman School of Medicine, New York University, New York, NY 10017, USA
| | - Paulo G. Coelho
- Department of Biochemistry and Molecular Biology, Miller School of Medicine, University of Miami, Miami, FL 33136, USA; (V.V.N.); (N.A.M.); (B.V.S.); (P.G.C.)
- DeWitt Daughtry Family Department of Surgery, Division of Plastic Surgery, Miller School of Medicine, University of Miami, Miami, FL 33136, USA
| | - Nick Tovar
- Biomaterials Division, College of Dentistry, New York University, New York, NY 10010, USA;
- Department of Oral and Maxillofacial Surgery, New York University, Langone Medical Center and Bellevue Hospital Center, New York, NY 10016, USA
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Mousavi SJ, Ejeian F, Razmjou A, Nasr-Esfahani MH. In vivo evaluation of bone regeneration using ZIF8-modified polypropylene membrane in rat calvarium defects. J Clin Periodontol 2023; 50:1390-1405. [PMID: 37485621 DOI: 10.1111/jcpe.13855] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/25/2022] [Revised: 06/02/2023] [Accepted: 07/04/2023] [Indexed: 07/25/2023]
Abstract
AIM The profound potential of zeolitic imidazolate framework 8 (ZIF8) thin film for inducing osteogenesis has been previously established under in vitro conditions. As the next step towards the clinical application of ZIF8-modified substrates in periodontology, this in vivo study aimed to evaluate the ability of the ZIF8 crystalline layer to induce bone regeneration in an animal model defect. MATERIALS AND METHODS Following the mechanical characterization of the membranes and analysing the in vitro degradation of the ZIF8 layer, in vivo bone regeneration was evaluated in a critical-sized (5-mm) rat calvarial bone defect model. For each animal, one defect was randomly covered with either a polypropylene (PP) or a ZIF8-modified membrane (n = 7 per group), while the other defect was left untreated as a control. Eight weeks post surgery, bone formation was assessed by microcomputed tomography scanning, haematoxylin and eosin staining and immunohistochemical analysis. RESULTS The ZIF8-modified membrane outperformed the PP membrane in terms of mechanical properties and revealed a trace Zn+2 release. Results of in vivo evaluation verified the superior barrier function of the ZIF8-coated membrane compared with pristine PP membrane. Compared with the limited marginal bone formation in the control and PP groups, the defect area was almost filled with mature bone in the ZIF8-coated membrane group. CONCLUSIONS Our results support the effectiveness of the ZIF8-coated membrane as a promising material for improving clinical outcomes of guided bone regeneration procedures, without using biological components.
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Affiliation(s)
- Seyed Javad Mousavi
- Department of Biotechnology, Faculty of Biological Science and Technology, University of Isfahan, Isfahan, Iran
- Department of Animal Biotechnology, Cell Science Research Center, Royan Institute for Biotechnology, ACECR, Isfahan, Iran
| | - Fatemeh Ejeian
- Department of Animal Biotechnology, Cell Science Research Center, Royan Institute for Biotechnology, ACECR, Isfahan, Iran
| | - Amir Razmjou
- School of Engineering, Edith Cowan University, Perth, Western Australia, Australia
- UNESCO Centre for Membrane Science and Technology, School of Chemical Engineering, University of New South Wales, Sydney, New South Wales, Australia
| | - Mohammad Hossein Nasr-Esfahani
- Department of Animal Biotechnology, Cell Science Research Center, Royan Institute for Biotechnology, ACECR, Isfahan, Iran
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Mizraji G, Davidzohn A, Gursoy M, Gursoy U, Shapira L, Wilensky A. Membrane barriers for guided bone regeneration: An overview of available biomaterials. Periodontol 2000 2023; 93:56-76. [PMID: 37855164 DOI: 10.1111/prd.12502] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2023] [Revised: 05/21/2023] [Accepted: 05/29/2023] [Indexed: 10/20/2023]
Abstract
Dental implants revolutionized the treatment options for restoring form, function, and esthetics when one or more teeth are missing. At sites of insufficient bone, guided bone regeneration (GBR) is performed either prior to or in conjunction with implant placement to achieve a three-dimensional prosthetic-driven implant position. To date, GBR is well documented, widely used, and constitutes a predictable and successful approach for lateral and vertical bone augmentation of atrophic ridges. Evidence suggests that the use of barrier membranes maintains the major biological principles of GBR. Since the material used to construct barrier membranes ultimately dictates its characteristics and its ability to maintain the biological principles of GBR, several materials have been used over time. This review, summarizes the evolution of barrier membranes, focusing on the characteristics, advantages, and disadvantages of available occlusive barrier membranes and presents results of updated meta-analyses focusing on the effects of these membranes on the overall outcome.
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Affiliation(s)
- Gabriel Mizraji
- Department of Periodontology, Faculty of Dental Medicine, Hadassah Medical Center, Hebrew University of Jerusalem, Jerusalem, Israel
| | | | - Mervi Gursoy
- Department of Periodontology, Institute of Dentistry, University of Turku, Turku, Finland
- Oral Health Care, Welfare Division, City of Turku, Turku, Finland
| | - Ulvi Gursoy
- Department of Periodontology, Institute of Dentistry, University of Turku, Turku, Finland
| | - Lior Shapira
- Department of Periodontology, Faculty of Dental Medicine, Hadassah Medical Center, Hebrew University of Jerusalem, Jerusalem, Israel
| | - Asaf Wilensky
- Department of Periodontology, Faculty of Dental Medicine, Hadassah Medical Center, Hebrew University of Jerusalem, Jerusalem, Israel
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37
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Ma YF, Yan XZ. Periodontal Guided Tissue Regeneration Membranes: Limitations and Possible Solutions for the Bottleneck Analysis. TISSUE ENGINEERING. PART B, REVIEWS 2023; 29:532-544. [PMID: 37029900 DOI: 10.1089/ten.teb.2023.0040] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/09/2023]
Abstract
Guided tissue regeneration (GTR) is an important surgical method for periodontal regeneration. By placing barrier membrane on the root surface of the tooth to guide the adhesion and proliferation of periodontal ligament cells, periodontal tissue regeneration can be achieved. This review intends to analyze the current limitations of GTR membranes and to propose possible solutions for developing new ones. Limitations of current GTR membranes include nonabsorbable membranes and absorbable synthetic polymer membranes exhibit weak biocompatibility; when applying to a large defect wound, the natural collagen membrane with fast degradation rate have limited mechanical strength, and the barrier function may not be maintained well. Although the degradation time can be prolonged after cross-linking, it may cause foreign body reaction and affect tissue integration; The clinical operation of current barrier membranes is inconvenient. In addition, most of the barrier membranes lack bioactivity and will not actively promote periodontal tissue regeneration. Possible solutions include using electrospinning (ELS) techniques, nanofiber scaffolds, or developing functional gradient membranes to improve their biocompatibility; adding Mg, Zn, and/or other metal alloys, or using 3D printing technology to improve their mechanical strength; increasing the concentration of nanoparticles or using directional arrangement of membrane fibers to control the fiber diameter and porosity of the membrane, which can improve their barrier function; mixing natural and synthetic polymers as well as other biomaterials with different degradation rates in proportion to change the degradation rate and maintain barrier function; to improve the convenience of clinical operation, barrier membranes that meets personalized adhesion to the wound defect can be manufactured; developing local controlled release drug delivery systems to improve their bioactivity. Impact statement This review provides an up-to-date summary of commonly commercial periodontal guided tissue regeneration membranes, and analyze their limitations in clinical use. Using studies published recently to explore possible solutions from several perspectives and to raise possible strategies in the future. Several strategies have tested in vivo/in vitro, which will guide the way to propel clinical translation, meeting clinical needs.
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Affiliation(s)
- Yi-Fei Ma
- Department of Periodontology, Shanghai Engineering Research Center of Tooth Restoration and Regeneration, Stomatological Hospital and Dental School of Tongji University, Shanghai, People's Republic of China
| | - Xiang-Zhen Yan
- Department of Periodontology, Shanghai Engineering Research Center of Tooth Restoration and Regeneration, Stomatological Hospital and Dental School of Tongji University, Shanghai, People's Republic of China
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Zhu Y, Jiang S, Xu D, Cheng G, Shi B. Resveratrol-loaded co-axial electrospun poly(ε-caprolactone)/chitosan/polyvinyl alcohol membranes for promotion of cells osteogenesis and bone regeneration. Int J Biol Macromol 2023; 249:126085. [PMID: 37536411 DOI: 10.1016/j.ijbiomac.2023.126085] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2023] [Revised: 07/21/2023] [Accepted: 07/30/2023] [Indexed: 08/05/2023]
Abstract
The guided bone regeneration (GBR) membranes currently used in clinics are usually compromised by their limited osteogenic induction potential. In this study, we fabricate a core-shell poly(ε-caprolactone)/chitosan/polyvinyl alcohol (PCL/CS/PVA) GBR membrane with different amount of resveratrol (RSV), endowing the PCL/CS/PVA GBR membrane with superior osteogenic induction ability, which was not attained by the regular GBR membrane. The prepared GBR membranes were characterized by scanning electron microscopy, transmission electron microscopy, and CCK-8 and live-dead staining assays, and their osteogenic induction ability was evaluated using Col-I immunofluorescence staining, micro-computed tomography, haematoxylin and eosin staining and immunohistochemical staining. Results of the in vitro release experiment confirmed that the membranes exhibited a continuous RSV release profile for 15 days. Furthermore, the cumulative releasing of RSV was increased from 39.68 ± 2.09 μg to 65.8 ± 2.91 μg with increasing contents of RSV from 0.1 % to 0.5 % (w/v) in the core layer of GBR membranes. In particular, the PCL/CS/PVA GBR membrane loading with 0.5 % RSV most efficiently release RSV in a sustained and controlled manner, which significantly induced osteogenic differentiation of pre-osteoblasts in vitro and bone regeneration in vivo. Based on the in vivo histological findings, newly formed bone tissues with 82.46 ± 9.86 % BV/TV and 0.70 ± 0.07gcm-3 BMD were generated in the defect sites treated by the GBR membrane loaded with 0.5 % RSV, which were the largest values among those for all three groups after 12 weeks of post implantation. Overall, the PCL/CS/PVA GBR membrane loaded with 0.5 % RSV has significant potential for bone regeneration.
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Affiliation(s)
- Yan Zhu
- State Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, Key Laboratory of Oral Biomedicine Ministry of Education, Hubei Key Laboratory of Stomatology, School & Hospital of Stomatology, Wuhan University, Wuhan 430079, Hubei, China; Department of Stomatology, Renmin Hospital of Wuhan University, Wuhan 430060, Hubei, China
| | - Shengjun Jiang
- Department of Stomatology, Renmin Hospital of Wuhan University, Wuhan 430060, Hubei, China
| | - Dongdong Xu
- School and Hospital of Stomatology, Wenzhou Medical University, Wenzhou 325002, Zhejiang, China
| | - Gu Cheng
- State Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, Key Laboratory of Oral Biomedicine Ministry of Education, Hubei Key Laboratory of Stomatology, School & Hospital of Stomatology, Wuhan University, Wuhan 430079, Hubei, China; School and Hospital of Stomatology, Wenzhou Medical University, Wenzhou 325002, Zhejiang, China.
| | - Bin Shi
- State Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, Key Laboratory of Oral Biomedicine Ministry of Education, Hubei Key Laboratory of Stomatology, School & Hospital of Stomatology, Wuhan University, Wuhan 430079, Hubei, China.
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Abtahi S, Chen X, Shahabi S, Nasiri N. Resorbable Membranes for Guided Bone Regeneration: Critical Features, Potentials, and Limitations. ACS MATERIALS AU 2023; 3:394-417. [PMID: 38089090 PMCID: PMC10510521 DOI: 10.1021/acsmaterialsau.3c00013] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/05/2023] [Revised: 06/01/2023] [Accepted: 06/02/2023] [Indexed: 03/22/2024]
Abstract
Lack of horizontal and vertical bone at the site of an implant can lead to significant clinical problems that need to be addressed before implant treatment can take place. Guided bone regeneration (GBR) is a commonly used surgical procedure that employs a barrier membrane to encourage the growth of new bone tissue in areas where bone has been lost due to injury or disease. It is a promising approach to achieve desired repair in bone tissue and is widely accepted and used in approximately 40% of patients with bone defects. In this Review, we provide a comprehensive examination of recent advances in resorbable membranes for GBR including natural materials such as chitosan, collagen, silk fibroin, along with synthetic materials such as polyglycolic acid (PGA), polycaprolactone (PCL), polyethylene glycol (PEG), and their copolymers. In addition, the properties of these materials including foreign body reaction, mechanical stability, antibacterial property, and growth factor delivery performance will be compared and discussed. Finally, future directions for resorbable membrane development and potential clinical applications will be highlighted.
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Affiliation(s)
- Sara Abtahi
- NanoTech
Laboratory, School of Engineering, Faculty of Science and Engineering, Macquarie University, Sydney 2109, Australia
- Department
of Dental Biomaterials, School of Dentistry, Tehran University of Medical Sciences, Tehran 1416753955, Iran
| | - Xiaohu Chen
- NanoTech
Laboratory, School of Engineering, Faculty of Science and Engineering, Macquarie University, Sydney 2109, Australia
| | - Sima Shahabi
- Department
of Dental Biomaterials, School of Dentistry, Tehran University of Medical Sciences, Tehran 1416753955, Iran
| | - Noushin Nasiri
- NanoTech
Laboratory, School of Engineering, Faculty of Science and Engineering, Macquarie University, Sydney 2109, Australia
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40
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Kandhari S, Khalid S, James A, Laverty DP. Bone grafting techniques and materials for implant dentistry. Br Dent J 2023; 235:180-189. [PMID: 37563385 DOI: 10.1038/s41415-023-6113-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2023] [Accepted: 05/28/2023] [Indexed: 08/12/2023]
Abstract
Bone quality, volume, height and width all play a pivotal role in dental implant stability, success and survival. A lack of adequate bone can be overcome with various bone grafting procedures. Dependent on many factors, including the amount of bone required, the site of implant placement, patient preferences and clinician factors; the type of bone grafting material and procedure undertaken can vary. Supplemental bone can be sourced from a variety of sources, including autogenous, allogenous and xenograft bone. Dependent on the source of the bone, it will have different properties in aiding bone formation, as well as being presented in different formulations, such as bone particles or bone blocks.The aim of this paper is to provide an overview of bone grafting indications, materials and types of bone grafting techniques that can be utilised to aid dental implant provision. It also discusses the properties needed to ensure optimal success of guided bone regeneration techniques.
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Affiliation(s)
- Sunmeet Kandhari
- Restorative Dental Core Trainee, Birmingham Community Healthcare NHS Foundation Trust, Birmingham Dental Hospital, 5 Mill Pool Way, Birmingham, B5 7EG, UK.
| | - Sehrish Khalid
- Speciality Registrar in Restorative Dentistry, Birmingham Community Healthcare NHS Foundation Trust, Birmingham Dental Hospital, 5 Mill Pool Way, Birmingham, B5 7EG, UK
| | - Alistair James
- General Dental Practitioner and Speciality Dentist in Restorative Dentistry, Birmingham Community Healthcare NHS Foundation Trust, Birmingham Dental Hospital, 5 Mill Pool Way, Birmingham, B5 7EG, UK
| | - Dominic P Laverty
- Consultant in Restorative Dentistry, Birmingham Community Healthcare NHS Foundation Trust, Birmingham Dental Hospital, 5 Mill Pool Way, Birmingham, B5 7EG, UK
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41
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Yang J, Yuan K, Zhang T, Zhou S, Li W, Chen Z, Wang Y. Accelerated Bone Reconstruction by the Yoda1 Bilayer Membrane via Promotion of Osteointegration and Angiogenesis. Adv Healthc Mater 2023; 12:e2203105. [PMID: 36912184 DOI: 10.1002/adhm.202203105] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2022] [Revised: 02/28/2023] [Indexed: 03/14/2023]
Abstract
Guided bone regeneration membranes are widely used to prevent fibroblast penetration and facilitate bone defect repair by osteoblasts. However, the current clinically available collagen membranes lack bone induction and angiogenic capacities, exhibiting limited bone regeneration. The mechanically sensitive channel, Piezo1, which is activated by Yoda1, has been reported to play crucial roles in osteogenesis and angiogenesis. Nevertheless, the application of Yoda1 alone is unsustainable to maintain this activity. Therefore, this study fabricates a Yoda1-loading bilayer membrane using electrospinning technology. Its inner layer in contact with the bone defect is composed of vertically aligned fibers, which regulate the proliferation and differentiation of cells, release Yoda1, and promote bone regeneration. Its outer layer in contact with the soft tissue is dense with oriented fibers by UV cross-linking, mainly preventing fibroblast infiltration and inhibiting the immune response. Furthermore, the loaded Yoda1 affects osteogenesis and angiogenesis via the Piezo1/RhoA/Rho-associated coiled-coil-containing protein kinase 1/Yes1-associated transcriptional regulator signaling pathway. The results reveal that the Yoda1 bilayer membrane is efficient and versatile in accelerating bone regeneration, suggesting its potential as a novel therapeutic agent for various clinical issues.
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Affiliation(s)
- Jinghong Yang
- Hospital of Stomatology, Guanghua School of Stomatology, Guangdong Provincial Key Laboratory of Stomatology, Sun Yat-sen University, Guangzhou, Guangdong, 510055, China
| | - Kaiting Yuan
- Hospital of Stomatology, Guanghua School of Stomatology, Guangdong Provincial Key Laboratory of Stomatology, Sun Yat-sen University, Guangzhou, Guangdong, 510055, China
| | - Tingting Zhang
- Hospital of Stomatology, Guanghua School of Stomatology, Guangdong Provincial Key Laboratory of Stomatology, Sun Yat-sen University, Guangzhou, Guangdong, 510055, China
| | - Shiqi Zhou
- Hospital of Stomatology, Guanghua School of Stomatology, Guangdong Provincial Key Laboratory of Stomatology, Sun Yat-sen University, Guangzhou, Guangdong, 510055, China
| | - Weichang Li
- Hospital of Stomatology, Guanghua School of Stomatology, Guangdong Provincial Key Laboratory of Stomatology, Sun Yat-sen University, Guangzhou, Guangdong, 510055, China
| | - Zetao Chen
- Hospital of Stomatology, Guanghua School of Stomatology, Guangdong Provincial Key Laboratory of Stomatology, Sun Yat-sen University, Guangzhou, Guangdong, 510055, China
| | - Yan Wang
- Hospital of Stomatology, Guanghua School of Stomatology, Guangdong Provincial Key Laboratory of Stomatology, Sun Yat-sen University, Guangzhou, Guangdong, 510055, China
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42
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Petposri S, Thuaksuban N, Buranadham S, Suwanrat T, Punyodom W, Supphaprasitt W. Physical Characteristics and Biocompatibility of 3D-Printed Polylactic-Co-Glycolic Acid Membranes Used for Guided Bone Regeneration. J Funct Biomater 2023; 14:jfb14050275. [PMID: 37233385 DOI: 10.3390/jfb14050275] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2023] [Revised: 05/08/2023] [Accepted: 05/12/2023] [Indexed: 05/27/2023] Open
Abstract
Bioresorbable polymeric membranes for guided bone regeneration (GBR) were fabricated using the three-dimensional printing technique. Membranes made of polylactic-co-glycolic acid (PLGA), which consist of lactic acid (LA) and glycolic acid in ratios of 10:90 (group A) and 70:30 (group B), were compared. Their physical characteristics including architecture, surface wettability, mechanical properties, and degradability were compared in vitro, and their biocompatibilities were compared in vitro and in vivo. The results demonstrated that the membranes of group B had mechanical strength and could support the proliferation of fibroblasts and osteoblasts significantly better than those of group A (p < 0.05). The degradation rate in Group B was significantly lower than that in Group A, but they significantly produced less acidic environment (p < 0.05). In vivo, the membranes of group B were compared with the commercially available collagen membranes (group C). The amount of newly formed bone of rat's calvarial defects covered with the membranes of group C was stable after week 2, whereas that of group B increased over time. At week 8, the new bone volumes in group B were greater than those in group C (p > 0.05). In conclusion, the physical and biological properties of the PLGA membrane (LA:GA, 70:30) were suitable for GBR.
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Affiliation(s)
- Sidabhat Petposri
- Department of Oral and Maxillofacial Surgery, Faculty of Dentistry, Prince of Songkla University, Hatyai 90112, Songkhla, Thailand
| | - Nuttawut Thuaksuban
- Department of Oral and Maxillofacial Surgery, Faculty of Dentistry, Prince of Songkla University, Hatyai 90112, Songkhla, Thailand
| | - Supanee Buranadham
- Department of Prosthetic Dentistry, Faculty of Dentistry, Prince of Songkla University, Hatyai 90112, Songkhla, Thailand
| | - Trin Suwanrat
- Department of Oral and Maxillofacial Surgery, Faculty of Dentistry, Prince of Songkla University, Hatyai 90112, Songkhla, Thailand
| | - Winita Punyodom
- Department of Chemistry, Faculty of Science, Chiang Mai University, Amphur Muang 50200, Chiang Mai, Thailand
| | - Woraporn Supphaprasitt
- Department of Oral and Maxillofacial Surgery, Faculty of Dentistry, Prince of Songkla University, Hatyai 90112, Songkhla, Thailand
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43
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Takayama T, Imamura K, Yamano S. Growth Factor Delivery Using a Collagen Membrane for Bone Tissue Regeneration. Biomolecules 2023; 13:biom13050809. [PMID: 37238679 DOI: 10.3390/biom13050809] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2023] [Revised: 05/01/2023] [Accepted: 05/08/2023] [Indexed: 05/28/2023] Open
Abstract
The use of biomaterials and bioactive agents has shown promise in bone defect repair, leading to the development of strategies for bone regeneration. Various artificial membranes, especially collagen membranes (CMs) that are widely used for periodontal therapy and provide an extracellular matrix-simulating environment, play a significant role in promoting bone regeneration. In addition, numerous growth factors (GFs) have been used as clinical applications in regenerative therapy. However, it has been established that the unregulated administration of these factors may not work to their full regenerative potential and could also trigger unfavorable side effects. The utilization of these factors in clinical settings is still restricted due to the lack of effective delivery systems and biomaterial carriers. Hence, considering the efficiency of bone regeneration, both spaces maintained using CMs and GFs can synergistically create successful outcomes in bone tissue engineering. Therefore, recent studies have demonstrated a significant interest in the potential of combining CMs and GFs to effectively promote bone repair. This approach holds great promise and has become a focal point in our research. The purpose of this review is to highlight the role of CMs containing GFs in the regeneration of bone tissue, and to discuss their use in preclinical animal models of regeneration. Additionally, the review addresses potential concerns and suggests future research directions for growth factor therapy in the field of regenerative science.
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Affiliation(s)
- Tadahiro Takayama
- Department of Periodontology, Nihon University School of Dentistry, Tokyo 101-8310, Japan
- Division of Advanced Dental Treatment, Dental Research Center, Nihon University School of Dentistry, Tokyo 101-8310, Japan
| | - Kentaro Imamura
- Department of Periodontology, Tokyo Dental College, Tokyo 101-0061, Japan
- Oral Health Science Center, Tokyo Dental College, Tokyo 101-0061, Japan
| | - Seiichi Yamano
- Department of Prosthodontics, New York University College of Dentistry, New York, NY 10010, USA
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44
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Tang H, Qi C, Bai Y, Niu X, Gu X, Fan Y. Incorporation of Magnesium and Zinc Metallic Particles in PLGA Bi-layered Membranes with Sequential Ion Release for Guided Bone Regeneration. ACS Biomater Sci Eng 2023. [PMID: 37162308 DOI: 10.1021/acsbiomaterials.3c00179] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/11/2023]
Abstract
Guided bone regeneration (GBR) membranes are commonly used for periodontal tissue regeneration. Due to the complications of existing GBR membranes, the design of bioactive membranes is still relevant. GBR membranes with an asymmetric structure can accommodate the functional requirements of different interfacial tissues. Here, poly(lactic acid-glycolic acid) (PLGA) was selected as the matrix for preparing a bi-layered membrane with both dense and porous structure. The dense layer for blocking soft tissues was incorporated with zinc (Zn) particles, while the porous layer for promoting bone regeneration was co-incorporated with magnesium (Mg) and Zn particles. Mg/Zn-embedded PLGA membranes exhibited 166% higher mechanical strength in comparison with pure PLGA membranes and showed suitable degradation properties with a sequential ion release behavior of Mg2+ first and continuously Zn2+. More importantly, the release of Zn2+ from bi-layered PLGA endowed GBR membranes with excellent antibacterial activity (antibacterial rate > 69.3%) as well as good cytocompatibility with MC3T3-E1 (mouse calvaria pre-osteoblastic cells) and HGF-1 (human gingival fibroblast cells). Thus, the asymmetric bi-layered PLGA membranes embedded with Mg and Zn particles provide a simple and effective strategy to not only reinforce the PLGA membrane but also endow membranes with osteogenic and antibacterial activity due to the continuous ion release profile, which serves as a promising candidate for use in GBR therapy.
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Affiliation(s)
- Hongyan Tang
- Key Laboratory of Biomechanics and Mechanobiology of Ministry of Education, Beijing Advanced Innovation Center for Biomedical Engineering, School of Biological Science and Medical Engineering, Beihang University, Beijing 100083, China
| | - Chengkai Qi
- Key Laboratory of Biomechanics and Mechanobiology of Ministry of Education, Beijing Advanced Innovation Center for Biomedical Engineering, School of Biological Science and Medical Engineering, Beihang University, Beijing 100083, China
| | - Yanjie Bai
- Stomatology Department, Peking University Third Hospital, Beijing 100191, China
| | - Xufeng Niu
- Key Laboratory of Biomechanics and Mechanobiology of Ministry of Education, Beijing Advanced Innovation Center for Biomedical Engineering, School of Biological Science and Medical Engineering, Beihang University, Beijing 100083, China
| | - Xuenan Gu
- Key Laboratory of Biomechanics and Mechanobiology of Ministry of Education, Beijing Advanced Innovation Center for Biomedical Engineering, School of Biological Science and Medical Engineering, Beihang University, Beijing 100083, China
| | - Yubo Fan
- Key Laboratory of Biomechanics and Mechanobiology of Ministry of Education, Beijing Advanced Innovation Center for Biomedical Engineering, School of Biological Science and Medical Engineering, Beihang University, Beijing 100083, China
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45
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Agrawal AA. Platelet rich fibrin is not a barrier membrane! Or is it? World J Clin Cases 2023; 11:2396-2404. [PMID: 37123322 PMCID: PMC10131006 DOI: 10.12998/wjcc.v11.i11.2396] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/01/2023] [Revised: 01/27/2023] [Accepted: 03/17/2023] [Indexed: 04/06/2023] Open
Abstract
Platelet-rich fibrin (PRF) is widely used in dentistry and other fields of medicine, and its use has become popular in dental implantology. In several published studies, PRF has been used as a barrier membrane. A barrier membrane is a sheet of a certain material that acts as a biological and mechanical barrier against the invasion of cells that are not involved in bone formation, such as epithelial cells. Among the basic requirements of a 'barrier membrane, occlusivity, stiffness, and space maintenance are the criteria that PRF primarily lacks; therefore, it does not fall under the category of barrier membranes. However, there is evidence that PRF membranes are useful in significantly improving wound healing. Does the PRF membrane act as a barrier? Should we think of adding or subtracting some points from the ideal requirements of a barrier membrane, or should we coin a new term or concept for PRF that will incorporate some features of a barrier membrane and be a combination of tissue engineering and biotechnology? This review is aimed at answering the basic question of whether the PRF membrane should be considered a barrier membrane or whether it is something more beyond the boundaries of a barrier membrane.
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Affiliation(s)
- Amit Arvind Agrawal
- Department of Periodontology and Implantology, Mahatma Gandhi Vidyamandir's Karmaveer Bhausaheb Hiray Dental College and Hospital, Nasik 422003, India
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46
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Sehgal V, Ruangsawasdi N, Kiattavorncharoen S, Bencharit S, Thanasrisuebwong P. Occlusive and Proliferative Properties of Different Collagen Membranes-An In Vitro Study. MATERIALS (BASEL, SWITZERLAND) 2023; 16:1657. [PMID: 36837285 PMCID: PMC9964610 DOI: 10.3390/ma16041657] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/07/2022] [Revised: 02/03/2023] [Accepted: 02/13/2023] [Indexed: 06/18/2023]
Abstract
Different collagen barrier membranes come in various sources and crosslinking that may affect barrier function and tissue integration. This study investigated barrier function and tissue integration of the three different collagen membranes (Jason®: porcine pericardium, GENOSS: bovine tendon, and BioMend® Extend: cross-linked bovine tendon) with human gingival fibroblasts. The barrier function and tissue integration properties were determined under confocal microscopy. Morphological characteristics were observed using scanning electron microscopy. Our results showed that all collagen membranes allowed a small number of cells to migrate, and the difference in barrier function ability was not significant. The cross-linked characteristics did not improve barrier ability. The native collagen membrane surfaces allowed evenly scattered proliferation of HGF, while the cross-linked collagen membrane induced patchy proliferation. Statistically significant differences in cell proliferation were found between Jason and BioMend Extend membranes (p = 0.04). Scanning electron microscope showed a compact membrane surface at the top, while the bottom surfaces displayed interwoven collagen fibers, which were denser in the crosslinked collagen membranes. Within the limitations of this study, collagen membranes of different origins and physical properties can adequately prevent the invasion of unwanted cells. Native collagen membranes may provide a better surface for gingival cell attachment and proliferation.
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Affiliation(s)
- Vishal Sehgal
- Master of Science Program in Implant Dentistry, Faculty of Dentistry, Mahidol University, Bangkok 10400, Thailand
| | - Nisarat Ruangsawasdi
- Department of Pharmacology, Faculty of Dentistry, Mahidol University, Bangkok 10400, Thailand
| | - Sirichai Kiattavorncharoen
- Department of Oral and Maxillofacial Surgery, Faculty of Dentistry, Mahidol University, Bangkok 10400, Thailand
| | - Sompop Bencharit
- Office of Oral Health Innovation, Department of Oral Rehabilitation, The James B. Edwards College of Dental Medicine, Medical University of South Carolina, Charleston, SC 29425, USA
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Jin S, Yang R, Hu C, Xiao S, Zuo Y, Man Y, Li Y, Li J. Plant-Derived Polyphenol and LL-37 Peptide-Modified Nanofibrous Scaffolds for Promotion of Antibacterial Activity, Anti-Inflammation, and Type-H Vascularized Bone Regeneration. ACS APPLIED MATERIALS & INTERFACES 2023; 15:7804-7820. [PMID: 36725088 DOI: 10.1021/acsami.2c20776] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/18/2023]
Abstract
The regeneration of oral tissues is a challenging clinical problem because of the complex microbial and biological stress environments. Electrospun fibrous scaffolds have attracted significant interest as effective barrier membranes for guided bone regeneration (GBR); however, no mature strategy yet exists for the surface modification of fibers to provide versatility to satisfy clinical requirements. This study demonstrated a practical biosafety strategy: the combined use of plant polyphenols and LL-37 peptides to modify the fiber surface to endow the fibrous scaffold with antimicrobial activity, immunoregulation, and vascularized bone regeneration. We confirmed that the LL-37 peptides interacted with tannic acid (TA) through noncovalent bonds through experiments and molecular docking simulation analysis. In vitro experiments showed that the TA coating imparted strong antibacterial properties to the fibrous scaffold, but it also caused cytotoxicity. The grafting of LL-37 peptide promoted the spreading, migration, and osteogenic differentiation of mesenchymal stem cells and was also conducive to the M2 polarization of RAW264.7 cells. In vivo experiments further verified that the LL-37 peptide-grafted fibrous scaffold significantly enhanced angiogenesis, anti-inflammatory effects, and type-H vascularized bone regeneration. Overall, the fibrous scaffold modified by the LL-37 peptide through TA grafting has significant potential for GBR applications.
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Affiliation(s)
- Shue Jin
- Analytical & Testing Center, Orthopedic Research Institute, Department of Orthopedic, West China Hospital, Sichuan University, Chengdu610065, P. R. China
| | - Renli Yang
- State Key Laboratory of Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu610041, P. R. China
| | - Chen Hu
- State Key Laboratory of Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu610041, P. R. China
| | - Shiqi Xiao
- Analytical & Testing Center, Orthopedic Research Institute, Department of Orthopedic, West China Hospital, Sichuan University, Chengdu610065, P. R. China
| | - Yi Zuo
- Analytical & Testing Center, Orthopedic Research Institute, Department of Orthopedic, West China Hospital, Sichuan University, Chengdu610065, P. R. China
| | - Yi Man
- State Key Laboratory of Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu610041, P. R. China
| | - Yubao Li
- Analytical & Testing Center, Orthopedic Research Institute, Department of Orthopedic, West China Hospital, Sichuan University, Chengdu610065, P. R. China
| | - Jidong Li
- Analytical & Testing Center, Orthopedic Research Institute, Department of Orthopedic, West China Hospital, Sichuan University, Chengdu610065, P. R. China
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48
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Zhang Z, He Q, Zhu J, Lin X, Yang Y, Chen H, Huang X, Xu R, Deng F. Optimizing the combined soft tissue repair and osteogenesis using double surfaces of crosslinked collagen scaffolds. J Biomed Mater Res B Appl Biomater 2023; 111:1271-1285. [PMID: 36779616 DOI: 10.1002/jbm.b.35231] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2022] [Revised: 01/22/2023] [Accepted: 01/30/2023] [Indexed: 02/14/2023]
Abstract
Excessive tissue damage or loss has been solved by guided tissue regeneration and guided bone regeneration theories. However, the unfavorable degradation property of the resorbable collagen scaffold brings a big challenge to support soft tissue stabilization and time-consuming osteogenesis. The combined effect for soft tissue and bone of the collagen scaffold with better degradation pattern has not been clearly proven. This study determined whether the double surfaces of crosslinked collagen scaffolds could optimize the combined soft tissue repair and osteogenesis. In this study, we applied the chemically crosslinking treatment to the commercially available collagen scaffolds. Surface characterization, mechanical property and cell proliferation in vitro were evaluated. Combined bilateral skin and bone defects were established with the smooth surface of scaffold facing the skin defect and the rough surface facing the bone defect on the calvaria of rat. Micro-CT and histological evaluation were applied to determine the scaffold degradation pattern, soft tissue repair and osteogenesis. The crosslinked collagen scaffolds showed comparably favorable surface porosity, structure intactness, superhydrophilicity and mechanical properties. Compared to the native scaffolds, the crosslinked scaffolds could optimize the combined soft tissue repair and osteogenesis by preferably prolonged degradation time. Early pro-angiogenesis facilitated soft tissue repair and osteogenesis by upregulated soft tissue matrix degradation and balanced pro-osteogenesis with limited osteoclast-mediated bone resorption. Taken together, this study offers a promising repair strategy for the combined soft tissue and bone defects. Further, the possible mechanism of controllable scaffold degradation should be conducted.
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Affiliation(s)
- Zhengchuan Zhang
- Hospital of Stomatology, Guanghua School of Stomatology, Sun Yat-sen University, Guangzhou, China.,Guangdong Provincial Key Laboratory of Stomatology, Guangzhou, China
| | - Qifen He
- Department of Stomatology, The Fifth Affiliated Hospital of Sun Yat-sen University, Zhuhai, China
| | - Jinhao Zhu
- Hospital of Stomatology, Guanghua School of Stomatology, Sun Yat-sen University, Guangzhou, China.,Guangdong Provincial Key Laboratory of Stomatology, Guangzhou, China
| | - Xiaoxuan Lin
- Hospital of Stomatology, Guanghua School of Stomatology, Sun Yat-sen University, Guangzhou, China.,Guangdong Provincial Key Laboratory of Stomatology, Guangzhou, China
| | - Yang Yang
- Hospital of Stomatology, Guanghua School of Stomatology, Sun Yat-sen University, Guangzhou, China.,Guangdong Provincial Key Laboratory of Stomatology, Guangzhou, China
| | - Hongcheng Chen
- Hospital of Stomatology, Guanghua School of Stomatology, Sun Yat-sen University, Guangzhou, China.,Guangdong Provincial Key Laboratory of Stomatology, Guangzhou, China
| | - Xiaoqiong Huang
- Hospital of Stomatology, Guanghua School of Stomatology, Sun Yat-sen University, Guangzhou, China.,Guangdong Provincial Key Laboratory of Stomatology, Guangzhou, China
| | - Ruogu Xu
- Hospital of Stomatology, Guanghua School of Stomatology, Sun Yat-sen University, Guangzhou, China.,Guangdong Provincial Key Laboratory of Stomatology, Guangzhou, China
| | - Feilong Deng
- Hospital of Stomatology, Guanghua School of Stomatology, Sun Yat-sen University, Guangzhou, China.,Guangdong Provincial Key Laboratory of Stomatology, Guangzhou, China
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49
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Li S, Zhao Y, Tian T, Zhang T, Xie Y, Cai X. A minimally invasive method for titanium mesh fixation with resorbable sutures in guided bone regeneration: A retrospective study. Clin Implant Dent Relat Res 2023; 25:87-98. [PMID: 36271812 DOI: 10.1111/cid.13147] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2022] [Revised: 10/01/2022] [Accepted: 10/04/2022] [Indexed: 11/30/2022]
Abstract
OBJECTIVES Titanium mesh has become a mainstream choice for guided bone regeneration (GBR) owing to its excellent space maintenance. However, the traditional fixation method using titanium screws impacts surgery efficiency and increases patient trauma. We report a novel method of fixing a titanium mesh using resorbable sutures. We assessed the feasibility of resorbable sutures for fixing a titanium mesh and whether it can serve as a stable, universal, and minimally invasive fixation method for a broader application of titanium meshes. METHODS Patients undergoing GBR with a digital titanium mesh fixed using titanium screws (TS group) and resorbable sutures (RS group) were observed at different time points. The stability of the fixation methods was evaluated on parameters such as titanium mesh spatial displacement, bone augmentation, and bone resorption. RESULTS A total of 36 patients were included in this study. The exposure rate of the titanium mesh in the TS group was 16.67%, while no exposure was noted in the RS group. There was no significant difference in the parameters of titanium mesh spatial displacement, bone augmentation, and bone resorption between the two groups (p > 0.05). CONCLUSION The use of resorbable sutures for fixing a titanium mesh can achieve similar results to traditional fixation using titanium screws. Although this new fixation method can improve the efficiency of the surgery and reduce the risk of complications, the long-term clinical effects require further follow-up investigation.
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Affiliation(s)
- Songhang Li
- Department of Implant Dentistry, West China Hospital of Stomatology, Sichuan University, Chengdu, China.,State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Yuxuan Zhao
- Department of Implant Dentistry, West China Hospital of Stomatology, Sichuan University, Chengdu, China.,State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Taoran Tian
- Department of Implant Dentistry, West China Hospital of Stomatology, Sichuan University, Chengdu, China.,State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Tianxu Zhang
- Department of Implant Dentistry, West China Hospital of Stomatology, Sichuan University, Chengdu, China.,State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Yu Xie
- Department of Implant Dentistry, West China Hospital of Stomatology, Sichuan University, Chengdu, China.,State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Xiaoxiao Cai
- Department of Implant Dentistry, West China Hospital of Stomatology, Sichuan University, Chengdu, China.,State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China
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50
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Wang CX, Rong QG, Zhu N, Ma T, Zhang Y, Lin Y. Finite element analysis of stress in oral mucosa and titanium mesh interface. BMC Oral Health 2023; 23:25. [PMID: 36650512 PMCID: PMC9843863 DOI: 10.1186/s12903-022-02703-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2022] [Accepted: 12/28/2022] [Indexed: 01/19/2023] Open
Abstract
BACKGROUND The stiffness of titanium mesh is a double-blade sword to repair larger alveolar ridges defect with excellent space maintenance ability, while invade the surrounding soft tissue and lead to higher mesh exposure rates. Understanding the mechanical of oral mucosa/titanium mesh/bone interface is clinically meaningful. In this study, the above relationship was analyzed by finite elements and verified by setting different keratinized tissue width in oral mucosa. METHODS Two three-dimensional finite element models were constructed with 5 mm keratinized tissue in labial mucosa (KM cases) and 0 mm keratinized tissue in labial mucosa (LM cases). Each model was composed of titanium mesh, titanium screws, graft materials, bone, teeth and oral mucosa. After that, a vertical (30 N) loadings were applied from both alveolar ridges direction and labial mucosa direction to stimulate the force from masticatory system. The displacements and von Mises stress of each element at the interfaces were analyzed. RESULTS Little displacements were found for titanium mesh, titanium screws, graft materials, bone and teeth in both LM and KM cases under different loading conditions. The maximum von Mises stress was found around the lingual titanium screw insertion place for those elements in all cases. The keratinized tissue decreased the displacement of oral mucosa, decreased the maximum von Mises stress generated by an alveolar ridges direction load, while increased those stress from labial mucosa direction load. Only the von Mises stress of the KM cases was all lower than the tensile strength of the oral mucosa. CONCLUSION The mucosa was vulnerable under the increasing stress generated by the force from masticatory system. The adequate buccal keratinized mucosa width are critical factors in reducing the stress beyond the titanium mesh, which might reduce the titanium exposure rate.
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Affiliation(s)
- Chen-Xi Wang
- grid.11135.370000 0001 2256 9319Department of Oral Implantology, Peking University School and Hospital of Stomatology and National Clinical Research Center for Oral Diseases and National Engineering Laboratory for Digital and Material Technology of Stomatology and Beijing Key Laboratory of Digital Stomatology, Beijing, 100081 China
| | - Qi-Guo Rong
- grid.11135.370000 0001 2256 9319College of Engineering, Peking University, Beijing, 100871 China
| | - Ning Zhu
- grid.11135.370000 0001 2256 9319Department of Oral Implantology, Peking University School and Hospital of Stomatology and National Clinical Research Center for Oral Diseases and National Engineering Laboratory for Digital and Material Technology of Stomatology and Beijing Key Laboratory of Digital Stomatology, Beijing, 100081 China
| | - Ting Ma
- grid.11135.370000 0001 2256 9319Department of Oral Implantology, Peking University School and Hospital of Stomatology and National Clinical Research Center for Oral Diseases and National Engineering Laboratory for Digital and Material Technology of Stomatology and Beijing Key Laboratory of Digital Stomatology, Beijing, 100081 China
| | - Yu Zhang
- grid.11135.370000 0001 2256 9319Department of Oral Implantology, Peking University School and Hospital of Stomatology and National Clinical Research Center for Oral Diseases and National Engineering Laboratory for Digital and Material Technology of Stomatology and Beijing Key Laboratory of Digital Stomatology, Beijing, 100081 China
| | - Ye Lin
- grid.11135.370000 0001 2256 9319Department of Oral Implantology, Peking University School and Hospital of Stomatology and National Clinical Research Center for Oral Diseases and National Engineering Laboratory for Digital and Material Technology of Stomatology and Beijing Key Laboratory of Digital Stomatology, Beijing, 100081 China
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