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Balducci C, Zamuner A, Todesco M, Bagno A, Pasquato A, Iucci G, Bertelà F, Battocchio C, Tortora L, Sacchetto L, Brun P, Bressan E, Dettin M. Resorbable engineered barrier membranes for oral surgery applications. J Biomed Mater Res A 2024; 112:1960-1974. [PMID: 38783716 DOI: 10.1002/jbm.a.37752] [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: 03/11/2024] [Revised: 05/06/2024] [Accepted: 05/11/2024] [Indexed: 05/25/2024]
Abstract
Population aging, reduced economic capacity, and neglecting the treatments for oral pathologies, are the main causal factors for about 3 billion individuals who are suffering from partial/total edentulism or alveolar bone resorption: thus, the demand for dental implants is increasingly growing. To achieve a good prognosis for implant-supported restorations, adequate peri-implant bone volume is mandatory. The Guided Bone Regeneration (GBR) technique is one of the most applied methods for alveolar bone reconstruction and treatment of peri-implant bone deficiencies. This technique involves the use of different types of membranes in association with some bone substitutes (autologous, homologous, or heterologous). However, time for bone regeneration is often too long and the bone quality is not simply predictable. This study aims at engineering and evaluating the efficacy of modified barrier membranes, enhancing their bioactivity for improved alveolar bone tissue regeneration. We investigated membranes functionalized with chitosan (CS) and chitosan combined with the peptide GBMP1α (CS + GBMP1α), to improve bone growth. OsseoGuard® membranes, derived from bovine Achilles tendon type I collagen crosslinked with formaldehyde, were modified using CS and CS + GBMP1α. The functionalization, carried out with 1-ethyl-3-(3 dimethylaminopropyl)carbodiimide and sulfo-N-Hydroxysuccinimide (EDC/sulfo-NHS), was assessed through FT-IR and XPS analyses. Biological assays were performed by directly seeding human osteoblasts onto the materials to assess cell proliferation, mineralization, gene expression of Secreted Phosphoprotein 1 (SPP1) and Runt-Related Transcription Factor 2 (Runx2), and antibacterial properties. Both CS and CS + GBMP1α functionalizations significantly enhanced human osteoblast proliferation, mineralization, gene expression, and antibacterial activity compared to commercial membranes. The CS + GBMP1α functionalization exhibited superior outcomes in all biological assays. Mechanical tests showed no significant alterations of membrane biomechanical properties post-functionalization. The engineered membranes, especially those functionalized with CS + GBMP1α, are suitable for GBR applications thanks to their ability to enhance osteoblast activity and promote bone tissue regeneration. These findings suggest a potential advancement in the treatment of oral cavity problems requiring bone regeneration.
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Affiliation(s)
- Cristian Balducci
- Department of Industrial Engineering, University of Padova, Padova, Italy
| | - Annj Zamuner
- Department of Industrial Engineering, University of Padova, Padova, Italy
- Department of Civil, Architectural and Environmental Engineering, University of Padova, Padova, Italy
| | - Martina Todesco
- Department of Civil, Architectural and Environmental Engineering, University of Padova, Padova, Italy
| | - Andrea Bagno
- Department of Industrial Engineering, University of Padova, Padova, Italy
| | - Antonella Pasquato
- Department of Industrial Engineering, University of Padova, Padova, Italy
| | | | | | | | - Luca Tortora
- Department of Science, Roma Tre University, Rome, Italy
- National Institute for Nuclear Physics, INFN Roma Tre, Rome, Italy
| | - Luca Sacchetto
- Department of Neurosciences, Section of Dentistry, University of Padova, Padova, Italy
| | - Paola Brun
- Department of Molecular Medicine, University of Padova, Padova, Italy
| | - Eriberto Bressan
- Department of Neurosciences, Section of Dentistry, University of Padova, Padova, Italy
| | - Monica Dettin
- Department of Industrial Engineering, University of Padova, Padova, Italy
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Lu Y, Lian X, Cao Y, Yang B, Qin T, Jing X, Huang D. An enhanced tri-layer bionic periosteum with gradient structure loaded by mineralized collagen for guided bone regeneration and in-situ repair. Int J Biol Macromol 2024; 277:134148. [PMID: 39059521 DOI: 10.1016/j.ijbiomac.2024.134148] [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: 03/04/2024] [Revised: 06/29/2024] [Accepted: 07/23/2024] [Indexed: 07/28/2024]
Abstract
Severe fracture non-union often accompanied by damaged or even absent periosteum remains a significant challenge. This paper presents a novel tri-layer bionic periosteum with gradient structure and mineralized collagen (MC) mimics natural periosteum for in-situ repair and bone regeneration. The construct with ultrasonic polylactic acid as the loose outer fibrous layer (UPLA), poly(ε-caprolactone) as the intermediate barrier layer (PCL-M), and poly(ε-caprolactone)/MC as the inner osteoblastic layer (PM) was prepared. The physicochemical properties of layers were investigated. UPLA/PCL-M/PM exhibited a tensile strength (3.55 ± 0.23 MPa) close to that of natural periosteum and excellent adhesion between the layers. In vitro experiments demonstrated that all layers had no toxicity to cells. UPLA promoted inward growth of mouse fibroblasts. PCL-M with a uniform pore size (2.82 ± 0.05 μm) could achieve a barrier effect against fibroblasts according to the live/dead assay. Meanwhile, PM could effectively promote cell migration with high alkaline phosphatase expression and significant mineralization of the extracellular matrix. Besides, in vivo experiments showed that UPLA/PCL-M/PM significantly promoted the regeneration of bone and early angiogenesis. Therefore, this construct with gradient structure developed in this paper would have great application potential in the efficient and high-quality treatment of severe fractures with periosteal defects.
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Affiliation(s)
- Yi Lu
- Department of Biomedical Engineering, Research Center for Nano-biomaterials & Regenerative Medicine, College of Biomedical Engineering, Taiyuan University of Technology, Taiyuan 030024, PR China
| | - Xiaojie Lian
- Department of Biomedical Engineering, Research Center for Nano-biomaterials & Regenerative Medicine, College of Biomedical Engineering, Taiyuan University of Technology, Taiyuan 030024, PR China.
| | - Yu Cao
- Department of Biomedical Engineering, Research Center for Nano-biomaterials & Regenerative Medicine, College of Biomedical Engineering, Taiyuan University of Technology, Taiyuan 030024, PR China
| | - Bo Yang
- Department of Biomedical Engineering, Research Center for Nano-biomaterials & Regenerative Medicine, College of Biomedical Engineering, Taiyuan University of Technology, Taiyuan 030024, PR China
| | - Tingwei Qin
- Department of Biomedical Engineering, Research Center for Nano-biomaterials & Regenerative Medicine, College of Biomedical Engineering, Taiyuan University of Technology, Taiyuan 030024, PR China
| | - Xuan Jing
- School and Hospital of Stomatology, Shanxi Medical University, Taiyuan 030600, PR China
| | - Di Huang
- Department of Biomedical Engineering, Research Center for Nano-biomaterials & Regenerative Medicine, College of Biomedical Engineering, Taiyuan University of Technology, Taiyuan 030024, PR China; Shanxi-Zheda Institute of Advanced Materials and Chemical Engineering, Taiyuan 030032, PR China
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Omar O, Rydén L, Wamied AR, Al-Otain I, Alhawaj H, Abuohashish H, Al-Qarni F, Emanuelsson L, Johansson A, Palmquist A, Thomsen P. Molecular mechanisms of poor osseointegration in irradiated bone: In vivo study in a rat tibia model. J Clin Periodontol 2024; 51:1236-1251. [PMID: 38798064 DOI: 10.1111/jcpe.14021] [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: 09/06/2023] [Revised: 04/30/2024] [Accepted: 05/15/2024] [Indexed: 05/29/2024]
Abstract
AIM Radiotherapy is associated with cell depletion and loss of blood supply, which are linked to compromised bone healing. However, the molecular events underlying these effects at the tissue-implant interface have not been fully elucidated. This study aimed to determine the major molecular mediators associated with compromised osseointegration due to previous exposure to radiation. MATERIALS AND METHODS Titanium implants were placed in rat tibiae with or without pre-exposure to 20 Gy irradiation. Histomorphometric, biomechanical, quantitative polymerase chain reaction (qPCR) and enzyme-linked immunosorbent assay analyses were performed at 1 and 4 weeks after implantation. RESULTS The detrimental effects of irradiation were characterized by reduced bone-implant contact and removal torque. Furthermore, pre-exposure to radiation induced different molecular dysfunctions such as (i) increased expression of pro-inflammatory (Tnf) and osteoclastic (Ctsk) genes and decreased expression of the bone formation (Alpl) gene in implant-adherent cells; (ii) increased expression of bone formation (Alpl and Bglap) genes in peri-implant bone; and (iii) increased expression of pro-inflammatory (Tnf) and pro-fibrotic (Tgfb1) genes in peri-implant soft tissue. The serum levels of pro-inflammatory, bone formation and bone resorption proteins were greater in the irradiated rats. CONCLUSIONS Irradiation causes the dysregulation of multiple biological activities, among which perturbed inflammation seems to play a common role in hindering osseointegration.
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Affiliation(s)
- Omar Omar
- Department of Biomedical Dental Sciences, College of Dentistry, Imam Abdulrahman Bin Faisal University, Dammam, Saudi Arabia
| | - Louise Rydén
- Department of Biomaterials, Institute of Clinical Sciences, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | | | - Ibrahim Al-Otain
- Radiation Oncology, King Fahad Specialist Hospital, Dammam, Saudi Arabia
| | - Hussain Alhawaj
- Department of Environmental Health Research, Institute for Research and Medical Consultations (IRMC), Imam Abdulrahman Bin Faisal University, Dammam, Saudi Arabia
| | - Hatem Abuohashish
- Department of Biomedical Dental Sciences, College of Dentistry, Imam Abdulrahman Bin Faisal University, Dammam, Saudi Arabia
| | - Faisal Al-Qarni
- Department of Substitutive Dental Sciences, College of Dentistry, Imam Abdulrahman Bin Faisal University, Dammam, Saudi Arabia
| | - Lena Emanuelsson
- Department of Biomaterials, Institute of Clinical Sciences, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - Anna Johansson
- Department of Biomaterials, Institute of Clinical Sciences, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - Anders Palmquist
- 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
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Luigi C, Paolo S, Alessio T, Paolo P, Valerio S, Antonio CVC, Mangano F, Maria M. Investigation of the extent of post-extraction bone contraction and bone remodeling after 4 months. A prospective pilot study. J Dent 2024:105337. [PMID: 39222771 DOI: 10.1016/j.jdent.2024.105337] [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: 05/17/2024] [Revised: 08/11/2024] [Accepted: 08/23/2024] [Indexed: 09/04/2024] Open
Abstract
OBJECTIVES Aim was to investigate a correlation between the serum levels of 25(OH)D and the resorption of the alveolar bone walls and regeneration of the alveolar space after tooth extractions. METHODS 14 adults in need of extraction of hopeless teeth were enrolled. An intraoral digital impression was performed using CS3600 scanner, and each patient was tested to assess serum vitamin D levels. Subsequently, extraction of teeth and contextual guided bone regeneration was performed using porcine origin graft material and a resorbable collagen membrane to covert the defect. After 4 months, an impression was taken, and the model was scanned using a professional scanner for lab. At the same time, a CBCT exam was performed to perform implant insertion through fully digital computer guided surgery. Bone was collected to perform histological and histomorphometric analysis. Pre and postoperative scans were compared using a specific software GOM Inspect, GOM GmbH, Germany) to estimate the volumetric changes. GLM tests were applied to investigate the relationship between the different predictor variables and the outcome variables. RESULTS 14 patients were divided in 3 groups depending on the serum Vit-D levels, identifying three ranges corresponding to low (lower than 20), medium (between 20-30), and optimal vitamin D levels (higher than 30). Volumetric contraction after extraction was observed for all patients without any significant difference. Focusing on the post-extraction regeneration, patients belonging to the group with lower levels of Vit-D displayed lower and more disorganized levels of bone. Immunohistochemistry analysis showed that Col1A1 and Osteocalcin had no physiological alteration. Osteopontin could be identified near the external surface of bone tissue granules. Runx2 signals were detected near the margins of bone trabeculae. CONCLUSIONS Serum vit-D levels do not appear to influence the extent of post-extraction bone contraction. On the contrary, it seems to significantly influence the post-extraction regeneration. CLINICAL SIGNIFICANCE Vit D serum levels may influence the regenerative aspect during post-extraction turn-over. This might suggest controlling and (in case of low levels) recommend Vit D supplement in the patient diet in case of extraction.
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Affiliation(s)
- Canullo Luigi
- Department of Surgical Sciences (DISC), University of Genoa, Genova, Italy; Department of Periodontology, University of Bern, Bern, Switzerland.
| | - Savadori Paolo
- Department of Biomedical, Surgical and Dental Sciences, University of Milan, Milan, Italy; Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, Milan, Italy.
| | | | - Pesce Paolo
- Department of Surgical Sciences (DISC), University of Genoa, Genova, Italy.
| | - Sora Valerio
- Department of Biomedical, Surgical and Dental Sciences, University of Milan, Milan, Italy.
| | | | | | - Menini Maria
- Department of Surgical Sciences (DISC), University of Genoa, Genova, Italy.
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Xu W, Gao X, Zhang M, Jiang Z, Xu X, Huang L, Yao H, Zhang Y, Tong X, Li Y, Lin J, Wen C, Ding X. Electrospun polycaprolactone-chitosan nanofibers on a zinc mesh as biodegradable guided bone-regeneration membranes with enhanced mechanical, antibacterial, and osteogenic properties for alveolar bone-repair applications. Acta Biomater 2024:S1742-7061(24)00477-X. [PMID: 39197567 DOI: 10.1016/j.actbio.2024.08.033] [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: 03/25/2024] [Revised: 08/19/2024] [Accepted: 08/21/2024] [Indexed: 09/01/2024]
Abstract
Guided bone-regeneration membrane (GBRM) is commonly used in bone-repair surgery because it blocks fibroblast proliferation and provides spatial support in bone-defect spaces. However, the need for removal surgery and the lack of antibacterial properties of conventional GBRM limit its therapeutic applicability for alveolar bone defects. Here we developed a GBRM for alveolar bone-repair and -regeneration applications through double-sided electrospinning of polycaprolactone and chitosan layers on a Zn mesh surface (denoted DSZM). The DSZM showed a UTS of ∼25.6 MPa, elongation of ∼16.1%, strength-elongation product of ∼0.413 GPa%, and ultrahigh spatial maintenance ability, and the UTS was over 6 times higher than that of commercial Bio-Gide membrane. The DSZM exhibited a corrosion rate of ∼17 µm/y and a Zn ion concentration of ∼0.23 μg/ml after 1 month of immersion in Hanks' solution. The DSZM showed direct and indirect cytocompatibility with exceptional osteogenic differentiation and calcium deposition toward MC3T3-E1 cells. Further, the DSZM showed strongly sustained antibacterial activity against S. aureus and osteogenesis in a rat critical-sized maxillary defect model. Overall, the DSZM fits the requirements for alveolar bone-repair and -regeneration applications as a biodegradable GBRM material due to its spatial support, suitable degradability, cytocompatibility, and antibacterial and osteogenic capabilities. STATEMENT OF SIGNIFICANCE: This work reports the mechanical properties, antibacterial ability and osteogenic properties of electrospun PCL-CS nanofiber on Zn mesh as biodegradable guided bone-regeneration membrane for alveolar bone-repair applications. Our findings demonstrate that the DSZM prepared by double-sided electrospinning of PCL-CS layers on Zn mesh showed a UTS of ∼25.6 MPa, elongation of ∼16.1%, strength-elongation product of ∼0.413 GPa%, and ultrahigh spatial maintenance ability, and the UTS was over 6 times greater than that of commercial Bio-Gide® membrane. The DSZM showed direct and indirect cytocompatibility with exceptional osteogenic differentiation and calcium deposition toward MC3T3-E1 cells. Further, the DSZM showed strongly sustained antibacterial activity against S. aureus and osteogenesis in a rat critical-sized maxillary defect model.
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Affiliation(s)
- Wenjie Xu
- The First Affiliated Hospital of Wenzhou Medical University, Wenzhou 325027, China
| | - Xue Gao
- The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou 325027, China
| | - Menghan Zhang
- The First Affiliated Hospital of Wenzhou Medical University, Wenzhou 325027, China
| | - Zhengting Jiang
- The First Affiliated Hospital of Wenzhou Medical University, Wenzhou 325027, China
| | - Xiaomin Xu
- The First Affiliated Hospital of Wenzhou Medical University, Wenzhou 325027, China
| | - Liangfu Huang
- The First Affiliated Hospital of Wenzhou Medical University, Wenzhou 325027, China
| | - Huiyu Yao
- The First Affiliated Hospital of Wenzhou Medical University, Wenzhou 325027, China
| | - Yitian Zhang
- The First Affiliated Hospital of Wenzhou Medical University, Wenzhou 325027, China
| | - Xian Tong
- Institute of Stomatology, School and Hospital of Stomatology, Wenzhou Medical University, Wenzhou 325027, China.
| | - Yuncang Li
- School of Engineering, RMIT University, Melbourne, Victoria 3001, Australia
| | - Jixing Lin
- Institute of Stomatology, School and Hospital of Stomatology, Wenzhou Medical University, Wenzhou 325027, China.
| | - Cuie Wen
- School of Engineering, RMIT University, Melbourne, Victoria 3001, Australia.
| | - Xi Ding
- The First Affiliated Hospital of Wenzhou Medical University, Wenzhou 325027, China.
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Zhao N, Qin L, Liu Y, Zhai M, Li D. Improved new bone formation capacity of hyaluronic acid-bone substitute compound in rat calvarial critical size defect. BMC Oral Health 2024; 24:994. [PMID: 39182066 PMCID: PMC11344309 DOI: 10.1186/s12903-024-04679-8] [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: 04/20/2024] [Accepted: 07/29/2024] [Indexed: 08/27/2024] Open
Abstract
BACKGROUND Bone loss of residual alveolar ridges is a great challenge in the field of dental implantology. Deproteinized bovine bone mineral (DBBM) is commonly used for bone regeneration, however, it is loose and difficult to handle in clinical practice. Hyaluronic acid (HA) shows viscoelasticity, permeability and excellent biocompatibility. The aim of this study is to evaluate whether high-molecular-weight (MW) HA combined with DBBM could promote new bone formation in rat calvarial critical size defects (CSDs). MATERIALS AND METHODS Rat calvarial CSDs (5 mm in diameter) were created. Rats (n = 45) were randomly divided into 3 groups: HA-DBBM compound grafting group, DBBM particles only grafting group and no graft group. Defect healing was assessed by hematoxylin-eosin staining and histomorphometry 2, 4 and 8 weeks postop, followed by Micro-CT scanning 8 weeks postop. Statistical analyses were performed by ANOVA followed by Tukey's post hoc test with P < 0.05 indicating statistical significance. RESULTS All rats survived after surgery. Histomorphometric evaluation revealed that at 2, 4 and 8 weeks postop, the percentage of newly formed bone was significantly greater in HA-DBBM compound grafting group than in the other two groups. Consistently, Micro-CT assessment revealed significantly more trabecular bone (BV/TV and Tb.N) in HA-DBBM compound group than in the other two groups, respectively (P < 0.05). Moreover, the trabecular bone was significantly more continuous (Tb.Pf) in HA-DBBM compound group than in the other two groups, respectively (P < 0.05). CONCLUSION HA not only significantly promoted new bone formation in rats calvarial CSDs but also improved the handling ability of DBBM.
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Affiliation(s)
- Ningbo Zhao
- Key Laboratory of Shaanxi Province for Craniofacial Precision Medicine Research, College of Stomatology, Xi'an Jiaotong University, 98 XiWu Road, Xi'an, Shaanxi, 710004, People's Republic of China
- Department of Implant Dentistry, College of Stomatology, Xi'an Jiaotong University, 98 XiWu Road, Xi'an, Shaanxi, 710004, People's Republic of China
| | - Lei Qin
- DeLun Dental, Baiyun District, Guangzhou, Guangdong Province, 510080, People's Republic of China
| | - Yi Liu
- State Key Laboratory of Military Stomatology, Department of Oral Implants, School of Stomatology, Fourth Military Medical University, No. 145 Changle West Road, Xi'an, Shaanxi, 710032, People's Republic of China
| | - Min Zhai
- Department of Stomatology, General Hospital of the Tibet Military Area Command, Lhasa, Tibet, 850007, People's Republic of China
| | - Dehua Li
- State Key Laboratory of Military Stomatology, Department of Oral Implants, School of Stomatology, Fourth Military Medical University, No. 145 Changle West Road, Xi'an, Shaanxi, 710032, People's Republic of China.
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Wagner J, Bayer L, Loger K, Acil Y, Kurz S, Spille J, Ahlhelm M, Ingwersen LC, Jonitz-Heincke A, Sedaghat S, Wiltfang J, Naujokat H. In vivo endocultivation of CAD/CAM hybrid scaffolds in the omentum majus in miniature pigs. J Craniomaxillofac Surg 2024:S1010-5182(24)00162-8. [PMID: 39198129 DOI: 10.1016/j.jcms.2024.04.012] [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: 02/22/2024] [Accepted: 04/27/2024] [Indexed: 09/01/2024] Open
Abstract
PURPOSE Correction of bony mandibular defects is a challenge in oral and maxillofacial surgery due to aesthetic and functional requirements. This study investigated the potential of a novel hybrid scaffold for bone regeneration and degradation assessment of the ceramic within the omentum majus over 6 months and the extent to which rhBMP-2 as a growth factor, alone or combined with a hydrogel, affects regeneration. MATERIALS AND METHODS In this animal study, 10 Göttingen minipigs each had one scaffold implanted in the greater omentum. Five animals had scaffolds loaded with a collagen hydrogel and rhBMP-2, and the other five animals (control group) had scaffolds loaded with rhBMP-2 only. Fluorochrome injections and computed tomography (CT) were performed regularly. After 6 months, the animals were euthanized, and samples were collected for microCT and histological evaluations. RESULTS Fluorescent and light microscopic and a CT morphological density evaluation showed continuous bone growth until week 16 in both groups. Regarding the ratio of bone attachment to the Zr02 support struts, the rhBMP-2 loaded collagen hydrogel group showed with 63% a significantly higher attachment (p > 0.001) than the rhBMP-2 control group (49%). CONCLUSION In this study, bone growth was induced in all omentum majus specimens until post-operative week 16. Furthermore, hydrogel and rhBMP-2 together resulted in better bone-scaffold integration than rhBMP-2 alone. Further studies should investigate whether implantation of the scaffolds in the jaw after an appropriate period of bone regeneration leads to a stable situation and the desired results.
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Affiliation(s)
- Juliane Wagner
- Department of Oral and Maxillofacial Surgery, University Hospital Schleswig-Holstein, Campus Kiel, Kiel, Germany; Cluster of Excellence, Precision Medicine in Inflammation, Christian-Albrechts-University of Kiel, Kiel, Germany.
| | - Lennart Bayer
- Department of Oral and Maxillofacial Surgery, University Hospital Schleswig-Holstein, Campus Kiel, Kiel, Germany
| | - Klaas Loger
- Department of Oral and Maxillofacial Surgery, University Hospital Schleswig-Holstein, Campus Kiel, Kiel, Germany
| | - Yahya Acil
- Department of Oral and Maxillofacial Surgery, University Hospital Schleswig-Holstein, Campus Kiel, Kiel, Germany
| | - Sascha Kurz
- ZESBO - Center for Research on Musculoskeletal Systems, Leipzig University, Leipzig, Germany
| | - Johannes Spille
- Department of Oral and Maxillofacial Surgery, University Hospital Schleswig-Holstein, Campus Kiel, Kiel, Germany
| | - Matthias Ahlhelm
- Fraunhofer Institute for Ceramic Technologies and Systems, IKTS, Dresden, Germany
| | - Lena-Christin Ingwersen
- Biomechanics and Implant Technology Research Laboratory, Department of Orthopaedics, Rostock University Medical Center, Rostock, Germany
| | - Anika Jonitz-Heincke
- Biomechanics and Implant Technology Research Laboratory, Department of Orthopaedics, Rostock University Medical Center, Rostock, Germany
| | - Sam Sedaghat
- Department of Diagnostic and Interventional Radiology, University Hospital Heidelberg, Heidelberg, Germany
| | - Jörg Wiltfang
- Department of Oral and Maxillofacial Surgery, University Hospital Schleswig-Holstein, Campus Kiel, Kiel, Germany
| | - Hendrik Naujokat
- Department of Oral and Maxillofacial Surgery, University Hospital Schleswig-Holstein, Campus Kiel, Kiel, Germany
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Sadat-Marashi Z, Fujioka-Kobayashi M, Katagiri H, Lang NP, Saulacic N. Higher solubility and lower onset temperature of protein denaturation increase the osteoconductive capacity of collagen membranes: A preclinical in vivo study. Clin Oral Implants Res 2024. [PMID: 39166760 DOI: 10.1111/clr.14345] [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: 07/12/2023] [Revised: 07/19/2024] [Accepted: 07/29/2024] [Indexed: 08/23/2024]
Abstract
OBJECTIVES Collagen membranes are extensively used for guided bone regeneration procedures, primarily for horizontal bone augmentation. More recently, it has been demonstrated that collagen membranes promote bone regeneration. Present study aimed at assessing if structural modifications of collagen membranes may enhance their osteoconductive capacity. METHODS Twenty-four adult Wistar rats were used. Bilateral calvaria defects with a diameter of 5 mm were prepared and covered with prototypes of collagen membranes (P1 or P2). The P1 membrane (positive control) presented a lower onset temperature of protein denaturation and a higher solubility than the P2 membrane (test). The contralateral defects were left uncovered (NC). After 1 and 4 weeks, the animals were euthanized. A microcomputed tomography analysis of the harvested samples was performed within and above the bony defect. Undecalcified ground sections were subjected to light microscopy and morphometric analysis. RESULTS Bone formation was observed starting from the circumferential borders of the defects in all groups at 1-week of healing. The foci of ossification were observed at the periosteal and dura mater sites, with signs of collagen membrane mineralization. However, there was no statistically significant difference between the groups. At 4 weeks, remnants of the collagen fibers were embedded in the newly formed bone. In the P2 group, significantly more bone volume, more new bone, and marrow spaces compared to the NC group were observed. Furthermore, the P2 group showed more bone volume ectocranially then the P1 group. CONCLUSIONS Bone formation subjacent to a P2 membrane was superior than subjacent to the P1 membrane and significantly better compared to the control. Modifications of the physico-chemical properties may enhance the osteoconductive competence of collagen membranes, supporting bone formation outside the bony defects.
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Affiliation(s)
- Zahra Sadat-Marashi
- Department of Cranio-Maxillofacial Surgery, Faculty of Medicine, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland
| | - Masako Fujioka-Kobayashi
- Department of Cranio-Maxillofacial Surgery, Faculty of Medicine, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland
- Department of Oral and Maxillofacial Surgery, School of Life Dentistry at Tokyo, The Nippon Dental University, Tokyo, Japan
| | - Hiroki Katagiri
- Advanced Research Center, School of Life Dentistry at Niigata, The Nippon Dental University, Niigata, Japan
| | - Niklaus P Lang
- Department of Cranio-Maxillofacial Surgery, Faculty of Medicine, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland
| | - Nikola Saulacic
- Department of Cranio-Maxillofacial Surgery, Faculty of Medicine, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland
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Dantas LR, Ortis GB, Suss PH, Tuon FF. Advances in Regenerative and Reconstructive Medicine in the Prevention and Treatment of Bone Infections. BIOLOGY 2024; 13:605. [PMID: 39194543 DOI: 10.3390/biology13080605] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/09/2024] [Revised: 08/05/2024] [Accepted: 08/08/2024] [Indexed: 08/29/2024]
Abstract
Reconstructive and regenerative medicine are critical disciplines dedicated to restoring tissues and organs affected by injury, disease, or congenital anomalies. These fields rely on biomaterials like synthetic polymers, metals, ceramics, and biological tissues to create substitutes that integrate seamlessly with the body. Personalized implants and prosthetics, designed using advanced imaging and computer-assisted techniques, ensure optimal functionality and fit. Regenerative medicine focuses on stimulating natural healing mechanisms through cellular therapies and biomaterial scaffolds, enhancing tissue regeneration. In bone repair, addressing defects requires advanced solutions such as bone grafts, essential in medical and dental practices worldwide. Bovine bone scaffolds offer advantages over autogenous grafts, reducing surgical risks and costs. Incorporating antimicrobial properties into bone substitutes, particularly with metals like zinc, copper, and silver, shows promise in preventing infections associated with graft procedures. Silver nanoparticles exhibit robust antimicrobial efficacy, while zinc nanoparticles aid in infection prevention and support bone healing; 3D printing technology facilitates the production of customized implants and scaffolds, revolutionizing treatment approaches across medical disciplines. In this review, we discuss the primary biomaterials and their association with antimicrobial agents.
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Affiliation(s)
- Leticia Ramos Dantas
- Laboratory of Emerging Infectious Diseases, School of Medicine, Pontifícia Universidade Católica do Paraná, Curitiba 80215-901, Paraná, Brazil
| | - Gabriel Burato Ortis
- Laboratory of Emerging Infectious Diseases, School of Medicine, Pontifícia Universidade Católica do Paraná, Curitiba 80215-901, Paraná, Brazil
| | - Paula Hansen Suss
- Laboratory of Emerging Infectious Diseases, School of Medicine, Pontifícia Universidade Católica do Paraná, Curitiba 80215-901, Paraná, Brazil
| | - Felipe Francisco Tuon
- Laboratory of Emerging Infectious Diseases, School of Medicine, Pontifícia Universidade Católica do Paraná, Curitiba 80215-901, Paraná, Brazil
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Mavlankar NA, Nath D, Chandran Y, Gupta N, Singh A, Balakrishnan V, Pal A. Maneuvering the mineralization of self-assembled peptide nanofibers for designing mechanically-stiffened self-healable composites toward bone-mimetic ECM. J Mater Chem B 2024. [PMID: 39118433 DOI: 10.1039/d4tb00810c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/10/2024]
Abstract
Extracellular matrix (ECM) elasticity remains a crucial parameter to determine cell-material interactions (viz. adhesion, growth, and differentiation), cellular communication, and migration that are essential to tissue repair and regeneration. Supramolecular peptide hydrogels with their 3-dimensional porous network and tuneable mechanical properties have emerged as an excellent class of ECM-mimetic biomaterials with relevant dynamic attributes and bioactivity. Here, we demonstrate the design of minimalist amyloid-inspired peptide amphiphiles, CnPA (n = 6, 8, 10, 12) with tuneable peptide nanostructures that are efficiently biomineralized and cross-linked using bioactive silicates. Such hydrogel composites, CnBG exhibit excellent mechanical attributes and possess excellent self-healing abilities and collagen-like strain-stiffening ability as desired for bone ECM mimetic scaffold. The composites exhibited the formation of a hydroxyapatite mineral phase upon incubation in a simulated body fluid that rendered mechanical stiffness akin to the hydroxyapatite-bridged collagen fibers to match the bone tissue elasticity eventually. In a nutshell, peptide nanostructure-guided temporal effects and mechanical attributes demonstrate C8BG to be an optimal composite. Finally, such constructs feature the potential for adhesion, proliferation of U2OS cells, high alkaline phosphatase activity, and osteoconductivity.
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Affiliation(s)
- Nimisha A Mavlankar
- Chemical Biology Unit, Institute of Nano Science and Technology, Knowledge City, Sector - 81, Mohali, Punjab, India.
| | - Debasish Nath
- Chemical Biology Unit, Institute of Nano Science and Technology, Knowledge City, Sector - 81, Mohali, Punjab, India.
| | - Yadu Chandran
- School of Mechanical and Materials Engineering, Indian Institute of Technology-Mandi, Kamand, Himachal Pradesh, India
| | - Nidhi Gupta
- Chemical Biology Unit, Institute of Nano Science and Technology, Knowledge City, Sector - 81, Mohali, Punjab, India.
| | - Ashmeet Singh
- Chemical Biology Unit, Institute of Nano Science and Technology, Knowledge City, Sector - 81, Mohali, Punjab, India.
| | - Viswanath Balakrishnan
- School of Mechanical and Materials Engineering, Indian Institute of Technology-Mandi, Kamand, Himachal Pradesh, India
| | - Asish Pal
- Chemical Biology Unit, Institute of Nano Science and Technology, Knowledge City, Sector - 81, Mohali, Punjab, India.
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Debortoli C, Falguiere A, Campana F, Catherine JH, Tardivo D, Lan R. Utilization of a Cortical Xenogeneic Membrane for Guided Bone Regeneration: A Retrospective Case Series. J Clin Med 2024; 13:4575. [PMID: 39124840 PMCID: PMC11312857 DOI: 10.3390/jcm13154575] [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: 06/16/2024] [Revised: 07/22/2024] [Accepted: 08/01/2024] [Indexed: 08/12/2024] Open
Abstract
Background: Guided bone regeneration (GBR) is a reliable technique used in vertical and horizontal bone defects. The posterior mandibular region is an area limited by anatomic constraints. The use of resorbable membranes with a cortical component could compensate for the lack of rigidity of resorbable membranes without the complications of non-resorbable membranes. The aim of this study was to evaluate the mean bone gains of a xenogeneic cortical membrane in horizontal and vertical bone defects in comparison with other membranes in the literature. Methods: A porcine cortical membrane was used to perform 7 GBR in the posterior mandibular region of five patients. Preoperative (T0) and six months postoperative (T1) cone beam computed tomography were superimposed to measure the horizontal and vertical bone gain. Implants were positioned at all sites, six months after GBR. Complications and bone resorption around the implants were also documented. Results: The mean horizontal and vertical bone gains were 3.83 ± 1.41 mm and 4.17 ± 1.86 mm, respectively. The analysis of repeatability was 0.997. As many as 40% of patients experienced pain refractory to analgesics. No exposure or infectious phenomenon was observed. Conclusions: This xenogeneic cortical membrane seemed to provide interesting results in the regeneration of horizontal and vertical bone defects. Comparative and prospective studies are necessary to validate the effectiveness of this membrane.
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Affiliation(s)
- Cyril Debortoli
- Oral Surgery Department, Assistance Publique des Hôpitaux de Marseille, 264 Avenue St Pierre, 13005 Marseille, France; (A.F.); (F.C.); (J.-H.C.); (R.L.)
| | - Arthur Falguiere
- Oral Surgery Department, Assistance Publique des Hôpitaux de Marseille, 264 Avenue St Pierre, 13005 Marseille, France; (A.F.); (F.C.); (J.-H.C.); (R.L.)
| | - Fabrice Campana
- Oral Surgery Department, Assistance Publique des Hôpitaux de Marseille, 264 Avenue St Pierre, 13005 Marseille, France; (A.F.); (F.C.); (J.-H.C.); (R.L.)
| | - Jean-Hugues Catherine
- Oral Surgery Department, Assistance Publique des Hôpitaux de Marseille, 264 Avenue St Pierre, 13005 Marseille, France; (A.F.); (F.C.); (J.-H.C.); (R.L.)
- Laboratory ISM, Aix-Marseille University, CNRS, EFS, 13005 Marseille, France
| | - Delphine Tardivo
- Laboratory ADES, Aix-Marseille University, CNRS, EFS, 13005 Marseille, France;
| | - Romain Lan
- Oral Surgery Department, Assistance Publique des Hôpitaux de Marseille, 264 Avenue St Pierre, 13005 Marseille, France; (A.F.); (F.C.); (J.-H.C.); (R.L.)
- Laboratory ADES, Aix-Marseille University, CNRS, EFS, 13005 Marseille, France;
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12
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Al‐Asfour A, Karched M, Qasim SSB, Zafiropoulos G. Adhesion of Candida albicans on PTFE membranes used in guided bone regeneration. Clin Exp Dent Res 2024; 10:e902. [PMID: 39014549 PMCID: PMC11252019 DOI: 10.1002/cre2.902] [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: 11/18/2023] [Revised: 02/28/2024] [Accepted: 03/24/2024] [Indexed: 07/18/2024] Open
Abstract
OBJECTIVES Guided bone regeneration (GBR) is a core procedure used to regenerate bone defects. The aim of the study was to investigate the adherence of Candida albicans on six commercially available polytetrafluoroethylene (PTFE) membranes used in GBR procedures and the subsequent clinical consequences. MATERIALS AND METHODS Six commercially available PTFE membranes were tested. Two of the membranes had a textured surface and the other four a plane, nontextured one. C. albicans (ATCC 24433) was cultured for 24 h, and its cell surface hydrophobicity was assessed using a modified method. C. albicans adhesion to membrane discs was studied by scanning electron microscopy (SEM) and real-time polymerase chain reaction (PCR). RESULTS C. albicans was found to be hydrophobic (77.25%). SEM analysis showed that C. albicans adherence to all membranes examined was characterized by patchy, scattered, and small clustered patterns except for one nontextured membrane with a most rough surface in which a thick biofilm was observed. Real-time PCR quantification revealed significantly greater adhesion of C. albicans cells to PTFE membranes than the control membrane (p ≤ .001) with the membranes having a textured surface exhibiting the highest count of 2680 × 104 cells/ml compared to the count of 707 × 104 cells/mL on those with a nontextured one (p ≤ .001). One membrane with nontextured surface, but with most rough surface was found to exhibit the highest count of 3010 × 104 cells/ml (p ≤ .05). CONCLUSION The results of this study indicate that C. albicans adhesion on membranes' surfaces depends on the degree of surface roughness and/or on the presence of a texture. Textured PTFE membranes and/or membranes high roughness showed significantly more adhered C. albicans cells. These findings can impact the surgeon's choice of GBR membrane and postoperative maintenance.
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Affiliation(s)
- Adel Al‐Asfour
- Department of Surgical Sciences, College of DentistryKuwait UniversitySafatKuwait
| | - Maribasappa Karched
- Department of Bioclinical Sciences, College of DentistryKuwait UniversitySafatKuwait
| | - Syed Saad Bin Qasim
- Department of Bioclinical Sciences, College of DentistryKuwait UniversitySafatKuwait
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Shukla P, Bera AK, Yeleswarapu S, Pati F. High Throughput Bioprinting Using Decellularized Adipose Tissue-Based Hydrogels for 3D Breast Cancer Modeling. Macromol Biosci 2024; 24:e2400035. [PMID: 38685795 DOI: 10.1002/mabi.202400035] [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: 03/29/2024] [Indexed: 05/02/2024]
Abstract
3D bioprinting allows rapid automated fabrication and can be applied for high throughput generation of biomimetic constructs for in vitro drug screening. Decellularized extracellular matrix (dECM) hydrogel is a popular biomaterial choice for tissue engineering and studying carcinogenesis as a tumor microenvironmental mimetic. This study proposes a method for high throughput bioprinting with decellularized adipose tissue (DAT) based hydrogels for 3D breast cancer modeling. A comparative analysis of decellularization protocol using detergent-based and detergent-free decellularization methods for caprine-origin adipose tissue is performed, and the efficacy of dECM hydrogel for 3D cancer modeling is assessed. Histological, biochemical, morphological, and biological characterization and analysis showcase the cytocompatibility of DAT hydrogel. The rheological property of DAT hydrogel and printing process optimization is assessed to select a bioprinting window to attain 3D breast cancer models. The bioprinted tissues are characterized for cellular viability and tumor cell-matrix interactions. Additionally, an approach for breast cancer modeling is shown by performing rapid high throughput bioprinting in a 96-well plate format, and in vitro drug screening using 5-fluorouracil is performed on 3D bioprinted microtumors. The results of this study suggest that high throughput bioprinting of cancer models can potentially have downstream clinical applications like multi-drug screening platforms and personalized disease models.
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Affiliation(s)
- Priyanshu Shukla
- Department of Biomedical Engineering, Indian Institute of Technology Hyderabad, Kandi, Sangareddy, Telangana, 502284, India
| | - Ashis Kumar Bera
- Department of Biomedical Engineering, Indian Institute of Technology Hyderabad, Kandi, Sangareddy, Telangana, 502284, India
| | - Sriya Yeleswarapu
- Department of Biomedical Engineering, Indian Institute of Technology Hyderabad, Kandi, Sangareddy, Telangana, 502284, India
| | - Falguni Pati
- Department of Biomedical Engineering, Indian Institute of Technology Hyderabad, Kandi, Sangareddy, Telangana, 502284, India
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Neira P, Moreno X, Caric Y, Strauss FJ, Cavalla F. Two-Step Periosteal Releasing Incision for Tension-Free Flap Closure After Implant Placement With Simultaneous Guided Bone Regeneration. J ORAL IMPLANTOL 2024; 50:317-321. [PMID: 38703005 DOI: 10.1563/aaid-joi-d-24-00032] [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] [Indexed: 05/06/2024]
Abstract
We evaluated the effect of periosteal-releasing incisions on flap displacement in anterior maxillary sites following implant placement and simultaneously guided bone regeneration. Thirty patients, each requiring a single dental implant and guided bone regeneration in the maxillary esthetic zone, were recruited. After full-thickness flap elevation, the displacement of the flap was measured under a standardized tension of 1 Ncm. Then, a 2-step periosteal releasing incision was placed in the internal aspect of the flap, and the displacement was remeasured using the same standardized tension. Keratinized tissue width and mucosal thickness at the surgical site were recorded. Patient-reported outcomes were assessed at the 7- and 14-day recall visits. Flap displacement (primary outcome) was calculated before and after periosteal-releasing incisions. Multivariable linear regression models were used to evaluate the influence of mucosal thickness on flap displacement and adjusted for Keratinized tissue width. Primary wound closure was achieved in all patients. The mean difference in flap coronal displacement before and after the periosteal-releasing incisions was 8.2 mm (p < .0001). Adjusted regression models showed no association between mucosal thickness and keratinized tissue width with the amount of flap displacement (p = .770). Patient-reported outcome measures for pain, swelling, and bleeding amounted to 1.28 ± 1.93, 1.36 ± 1.87, and 0.0 ± 0.0 at 7 days and 0.11 ± 0.57, 0.56 ± 1.03, and 0.0 ± 0.0 at 14 days, respectively. Periosteal-releasing incisions using the 2-step procedure described here are a predictable technique to obtain coronal flap displacements >8 mm without increased surgical complications.
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Affiliation(s)
- Patricio Neira
- San Camilo Hospital, San Felipe, Chile
- School of Dentistry, University of Chile, Chile
| | - Ximena Moreno
- San Camilo Hospital, San Felipe, Chile
- School of Dentistry, University of Chile, Chile
| | - Yakov Caric
- San Camilo Hospital, San Felipe, Chile
- School of Dentistry, University of Chile, Chile
| | - Franz Josef Strauss
- School of Dentistry, University of Chile, Chile
- Clinic of Reconstructive Dentistry, Center of Dental Medicine, University of Zurich, Zurich, Switzerland
- Faculty of Dentistry, Universidad Finis Terrae, Santiago, Chile
| | - Franco Cavalla
- San Camilo Hospital, San Felipe, Chile
- School of Dentistry, University Andres Bello, Chile
- School of Dentistry, University of Chile, Chile
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15
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Sheinberg DS, Almada R, Parra M, Slavin BV, Mirsky NA, Nayak VV, Tovar N, Witek L, Coelho PG. Preclinical evaluation of mucogingival defect treatment using piscine membranes: An in vivo assessment of wound healing. J Biomed Mater Res B Appl Biomater 2024; 112:e35468. [PMID: 39148256 DOI: 10.1002/jbm.b.35468] [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: 12/22/2023] [Revised: 07/19/2024] [Accepted: 07/30/2024] [Indexed: 08/17/2024]
Abstract
Periodontitis is a bacteria-induced chronic inflammatory disease characterized by degradation of the supporting tissue and bone in the oral cavity. Treatment modalities seek to facilitate periodontal rehabilitation while simultaneously preventing further gingival tissue recession and potentially bone atrophy. The aim of this study was to compare two differently sourced membranes, a resorbable piscine collagen membrane and a porcine-derived collagen membrane, in the repair of soft tissue defects utilizing a preclinical canine model. This in vivo component consisted of 10 beagles which were subjected to bilateral maxillary canine mucogingival flap defects, as well as bilateral soft tissue defects (or pouches) with no periodontal ligament damage in the mandibular canines. Defects received either a piscine-derived dermal membrane, (Kerecis® Oral, Ísafjörður, Iceland) or porcine-derived dermal membrane (Geistlich Mucograft®, Wolhusen, Switzerland) in a randomized fashion (to avoid site bias) and were allowed to heal for 30, 60, or 90 days. Statistical evaluation of tissue thickness was performed using general linear mixed model analysis of variance and least significant difference (LSD) post hoc analyses with fixed factors of time and membrane. Semi-quantitative analysis employed for inflammation assessment was evaluated using a chi-squared test along with a heteroscedastic t-test and values were reported as mean and corresponding 95% confidence intervals. In both the mucogingival flap defects and soft tissue gingival pouches, no appreciable qualitative differences were observed in tissue healing between the membranes. Furthermore, no statistical differences were observed in the thickness measurements between piscine- and porcine-derived membranes in the mucogingival flap defects (1.05 mm [±0.17] and 1.29 mm [±0.17], respectively [p = .06]) or soft tissue pouches (1.36 mm [±0.14] and 1.47 mm [±0.14], respectively [p = .27]), collapsed over time. Independent of membrane source (i.e., piscine or porcine), similar inflammatory responses were observed in both the maxilla and mandible at the three time points (p = .88 and p = .79, respectively). Histologic and histomorphometric evaluation results indicated that both membranes yielded equivalent tissue responses, remodeling dynamics and healing patterns for the mucogingival flap as well as the soft tissue gingival pouch defect models.
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Affiliation(s)
| | - Ricky Almada
- Department of Biochemistry and Molecular Biology, University of Miami Miller School of Medicine, Miami, Florida, USA
| | - Marcelo Parra
- Department of Comprehensive Adult Dentistry, Faculty of Dentistry, Universidad de La Frontera, Temuco, Chile
- Center of Excellence in Morphological and Surgical Studies (CEMyQ), Faculty of Medicine, Universidad de La Frontera, Temuco, Chile
| | - Blaire V Slavin
- University of Miami Miller School of Medicine, Miami, Florida, USA
| | | | - Vasudev Vivekanand Nayak
- Department of Biochemistry and Molecular Biology, University of Miami Miller School of Medicine, Miami, Florida, USA
| | - Nick Tovar
- Biomaterials Division, NYU Dentistry, New York, New York, USA
- Department of Oral and Maxillofacial Surgery, New York University, Langone Medical Center and Bellevue Hospital Center, New York, New York, USA
| | - Lukasz Witek
- Biomaterials Division, NYU Dentistry, New York, New York, USA
- Department of Biomedical Engineering, NYU Tandon School of Engineering, Brooklyn, New York, USA
- Hansjörg Wyss Department of Plastic Surgery, NYU Grossman School of Medicine, New York, New York, USA
| | - Paulo G Coelho
- Department of Biochemistry and Molecular Biology, University of Miami Miller School of Medicine, Miami, Florida, USA
- DeWitt Daughtry Family Department of Surgery, Division of Plastic & Reconstructive Surgery, University of Miami Miller School of Medicine, Miami, Florida, USA
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Chen L, Han J, Guo C. Research status and prospects of biodegradable magnesium-based metal guided bone regeneration membranes. HUA XI KOU QIANG YI XUE ZA ZHI = HUAXI KOUQIANG YIXUE ZAZHI = WEST CHINA JOURNAL OF STOMATOLOGY 2024; 42:415-425. [PMID: 39049628 PMCID: PMC11338478 DOI: 10.7518/hxkq.2024.2024140] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Received: 04/11/2024] [Revised: 05/16/2024] [Indexed: 07/27/2024]
Abstract
Biodegradable magnesium-based metal guided bone regeneration (GBR) membranes possess excellent mechanical properties, biodegradability, and osteopromotive capabilities, making them ideal implants for the treatment of maxillofacial bone defects. This review summarizes the current status and future research trends related to magnesium-based GBR membranes. First, the research history and application fields of magnesium-based metals are introduced, and the advantages of the use of magnesium-based materials for GBR membranes, including their mechanical properties, biocompatibility, osteopromotive performance, and underlying mechanisms are discussed. Finally, this review addresses the current limitations of magnesium-based GBR membranes and their applications and prospects in the field of dentistry. In conclusion, considerable advancements have been in fundamental and translational research on magnesium-based GBR membranes, which lays a crucial foundation for the treatment of maxillofacial bone defects.
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Affiliation(s)
- Liangwei Chen
- Dept. of Oral and Maxillofacial Surgery, Peking University School and Hospital of Stomatology, Beijing 100081, China
- National Center of Stomatology & National Clinical Research Center for Oral Diseases & National Engineering Research Center of Oral Biomaterials and Digital Medical Devices, Beijing 100081, China
| | - Jianmin Han
- National Center of Stomatology & National Clinical Research Center for Oral Diseases & National Engineering Research Center of Oral Biomaterials and Digital Medical Devices, Beijing 100081, China
- Dept. of Key Laboratory, Peking University School and Hospital of Stomatology, Beijing 100081, China
| | - Chuanbin Guo
- Dept. of Oral and Maxillofacial Surgery, Peking University School and Hospital of Stomatology, Beijing 100081, China
- National Center of Stomatology & National Clinical Research Center for Oral Diseases & National Engineering Research Center of Oral Biomaterials and Digital Medical Devices, Beijing 100081, China
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17
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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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18
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Luo F, Mo Y, Jiang J, Wen J, Ji Y, Li L, Wan Q. Advancements in dental implantology: The alveolar ridge split technique for enhanced osseointegration. Clin Implant Dent Relat Res 2024. [PMID: 39075020 DOI: 10.1111/cid.13363] [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: 03/12/2024] [Revised: 06/24/2024] [Accepted: 07/02/2024] [Indexed: 07/31/2024]
Abstract
The alveolar ridge split (ARS) technique is a pivotal advancement in dental implantology, addressing the limitation of insufficient bone width for implant placement. This review traces the historical development of ARS from its initial conceptualization to current practices and future directions. Emphasizing the technique's development, indications, procedural overview, and osteotomy variations, we highlight its minimally invasive nature, which reduces patient morbidity and treatment time. This article reviews various osteotomy methods within ARS, examining their applications, benefits, and limitations. Furthermore, it discusses the technique's role in expanding treatment options for patients with compromised alveolar structures, underpinned by a high implant survival rate and the potential for immediate implant placement. We also cover the necessity of meticulous surgical technique, the importance of patient-specific factors, and the promising future of ARS facilitated by advancements in biomaterials and regenerative medicine. In summary, this review provides a comprehensive overview of ARS, offering valuable insights for dental professionals and informing future clinical practices and research in implantology.
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Affiliation(s)
- Feng Luo
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China School of Stomatology, Sichuan University, Chengdu, China
| | - Yafei Mo
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China School of Stomatology, Sichuan University, Chengdu, China
| | - Jiapei Jiang
- Outpatient Department, Sichuan Electrical Power Hospital, Chengdu, China
| | - Jing Wen
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China School of Stomatology, Sichuan University, Chengdu, China
| | - Yixuan Ji
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China School of Stomatology, Sichuan University, Chengdu, China
| | - Lei Li
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China School of Stomatology, Sichuan University, Chengdu, China
| | - Qianbing Wan
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China School of Stomatology, Sichuan University, Chengdu, China
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Lu X, Sun S, Li N, Hu S, Pan Y, Wang L, Zhou X, Chen H, Zhang F. Janus sponge/electrospun fibre composite combined with EGF/bFGF/CHX promotes reconstruction in oral tissue regeneration. Colloids Surf B Biointerfaces 2024; 243:114117. [PMID: 39084056 DOI: 10.1016/j.colsurfb.2024.114117] [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: 05/03/2024] [Revised: 07/03/2024] [Accepted: 07/20/2024] [Indexed: 08/02/2024]
Abstract
Guided bone regeneration (GBR) is currently the most widely used bone augmentation technique in oral clinics. However, infection and soft tissue management remain the greatest challenge. In this study, a Janus sponge/electrospun fibre membrane containing epidermal growth factor (EGF), basic fibroblast growth factor (bFGF) and chlorhexidine (CHX) were prepared to optimize its application as a barrier membrane for GBR. The loose sponge part was covalently bonded with the fiber part which has a dense structure. The composed scaffold exhibited superior biocompatibility and antibacterial activity verified by in vitro test. A rat model of unilateral skull bone injury was used to confirm the effectiveness on both hard and soft tissue regeneration. The chitosan sponge on the soft tissue side containing EGF, bFGF and CHX had a loose structure, promoting collagen and cell regeneration and exerting an antibacterial effect. Meanwhile, the dense PLGA/PCL layer on the hard tissue side prevented fibroblast entry into the bone defect, thereby facilitating bone regeneration. The Janus composite scaffold provides a promising strategy for oral tissue restoration.
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Affiliation(s)
- Xiaoli Lu
- Department of Prosthodontics, The Affiliated Stomatological Hospital of Nanjing Medical University, Nanjing, Jiangsu, People's Republic of China; Jiangsu Province Key Laboratory of Oral Diseases, Nanjing Medical University, Nanjing, Jiangsu, People's Republic of China; Jiangsu Province Engineering Research Center of Stomatological Translational Medicine, Nanjing Medical University, Nanjing, Jiangsu, People's Republic of China; Yuhui Stomatological Hospital, Nantong, Jiangsu, People's Republic of China
| | - Shangwen Sun
- Department of Prosthodontics, The Affiliated Stomatological Hospital of Nanjing Medical University, Nanjing, Jiangsu, People's Republic of China; Jiangsu Province Key Laboratory of Oral Diseases, Nanjing Medical University, Nanjing, Jiangsu, People's Republic of China
| | - Na Li
- Department of Prosthodontics, The Affiliated Stomatological Hospital of Nanjing Medical University, Nanjing, Jiangsu, People's Republic of China; Jiangsu Province Key Laboratory of Oral Diseases, Nanjing Medical University, Nanjing, Jiangsu, People's Republic of China; Jiangsu Province Engineering Research Center of Stomatological Translational Medicine, Nanjing Medical University, Nanjing, Jiangsu, People's Republic of China
| | - Shuying Hu
- Department of General Dentistry, Nanjing Stomatological Hospital, Affiliated Hospital of Medical School, Institute of Stomatology, Nanjing University, Nanjing, Jiangsu, People's Republic of China
| | - Yuyao Pan
- Department of Prosthodontics, The Affiliated Stomatological Hospital of Nanjing Medical University, Nanjing, Jiangsu, People's Republic of China; Jiangsu Province Key Laboratory of Oral Diseases, Nanjing Medical University, Nanjing, Jiangsu, People's Republic of China; Jiangsu Province Engineering Research Center of Stomatological Translational Medicine, Nanjing Medical University, Nanjing, Jiangsu, People's Republic of China
| | - Lin Wang
- Department of Stomatology, Shanxi Provincial People's Hospital, Taiyuan, Shanxi, People's Republic of China
| | - Xuefeng Zhou
- Jiangsu Key Laboratory for Biomaterials and Devices, School of Biological Science and Medical Engineering, Southeast University, Nanjing, People's Republic of China
| | - Hanbang Chen
- Department of Prosthodontics, The Affiliated Stomatological Hospital of Nanjing Medical University, Nanjing, Jiangsu, People's Republic of China; Jiangsu Province Key Laboratory of Oral Diseases, Nanjing Medical University, Nanjing, Jiangsu, People's Republic of China; Jiangsu Province Engineering Research Center of Stomatological Translational Medicine, Nanjing Medical University, Nanjing, Jiangsu, People's Republic of China.
| | - Feimin Zhang
- Department of Prosthodontics, The Affiliated Stomatological Hospital of Nanjing Medical University, Nanjing, Jiangsu, People's Republic of China; Jiangsu Province Key Laboratory of Oral Diseases, Nanjing Medical University, Nanjing, Jiangsu, People's Republic of China; Jiangsu Province Engineering Research Center of Stomatological Translational Medicine, Nanjing Medical University, Nanjing, Jiangsu, People's Republic of China.
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20
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Bizelli VF, Alécio Viotto AH, Delamura IF, Baggio AMP, Ramos EU, Faverani LP, Bassi APF. Inflammatory Profile of Different Absorbable Membranes Used for Bone Regeneration: An In Vivo Study. Biomimetics (Basel) 2024; 9:431. [PMID: 39056872 PMCID: PMC11275136 DOI: 10.3390/biomimetics9070431] [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: 04/22/2024] [Revised: 07/06/2024] [Accepted: 07/09/2024] [Indexed: 07/28/2024] Open
Abstract
BACKGROUND Guided bone regeneration (GBR) has become a necessary practice in implantology. Absorbable membranes have shown advantages over non-absorbable membranes, such as blood support of bone tissue. This study aimed to evaluate five collagen membranes in rat calvaria critical-size defects through a histomorphometric analysis of the inflammatory profile during the initial phase of bone repair. MATERIALS AND METHODS A total of 72 Albinus Wistar rats were used for the study, divided into six groups, with 12 animals per group, and two experimental periods, 7 and 15 days. The groups were as follows: the CG (clot), BG (Bio-Gide®), JS (Jason®), CS (Collprotect®), GD (GemDerm®), and GDF (GemDerm Flex®). RESULTS Data showed that the BG group demonstrated an inflammatory profile with an ideal number of inflammatory cells and blood vessels, indicating a statistically significant difference between the JS and CS groups and the BG group in terms of the number of inflammatory cells and a statistically significant difference between the JS and CS groups and the GD group in terms of angiogenesis (p < 0.05). CONCLUSIONS We conclude that different origins and ways of obtaining them, as well as the thickness of the membrane, can interfere with the biological response of the material.
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Affiliation(s)
- Vinícius Ferreira Bizelli
- Department of Diagnosis and Surgery, School of Dentistry, São Paulo State University, UNESP, Araçatuba 16015-050, SP, Brazil; (A.H.A.V.); (I.F.D.); (A.M.P.B.); (E.U.R.); (L.P.F.); (A.P.F.B.)
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21
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Sung HP, Chen WC. Rate of graft retear is higher in over-the-top superior capsular reconstruction for massive posterosuperior rotator cuff tears with subscapularis tear. Knee Surg Sports Traumatol Arthrosc 2024. [PMID: 39010712 DOI: 10.1002/ksa.12365] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/16/2024] [Revised: 06/25/2024] [Accepted: 07/02/2024] [Indexed: 07/17/2024]
Abstract
PURPOSE To compare side-to-side superior capsular reconstruction (SCR) with over-the-top SCR in terms of functional outcomes, pain relief and allograft survival rates. METHODS Patients who had undergone arthroscopic dermal allograft SCR for massive irreparable rotator cuff tears and clinical follow-up for ≥2 years were recruited. All patients underwent postoperative assessment with routine radiographic analysis for acromiohumeral distances, ultrasound imaging 1 and 3 months after SCR and magnetic resonance imaging (MRI) at least 12 months after SCR. The outcome measures were visual analogue scale (VAS), American Shoulder and Elbow Surgeons (ASES), Constant and Single Assessment Numeric Evaluation (SANE) scores. RESULTS SCR was performed in 56 patients including side-to-side SCR in 32 and over-the-top SCR in 24. Postoperative MRI showed that the grafts were intact in 46 patients (82.1%; 26 who underwent side-to-side SCR and 20 who underwent over-the-top SCR). The proportion of nonhealing grafts in the over-the-top group was significantly higher with concomitant subscapularis tears (60% vs. 5.3%; p = 0.02). VAS scores and functional outcomes improved postoperatively in both groups and postoperative VAS (1.4 vs. 1.7; n.s.), Constant (74.8 vs. 76.0; n.s.), mean ASES (87.4 vs. 89.1; n.s.) and mean SANE (81.7 vs. 84.3; n.s.) scores did not differ significantly. CONCLUSION For massive rotator cuff tears, over-the-top and side-to-side SCR achieve similar pain relief and functional improvement, and the rate of healing allografts is high. However, over-the-top SCR is not recommended for massive posterosuperior rotator cuff tears with repairable subscapularis tendon tears due to a higher nonhealing rate. LEVEL OF EVIDENCE Level III.
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Affiliation(s)
- Hsin-Pei Sung
- Department of Orthopedic Surgery, Mackay Memorial Hospital, Taipei, Taiwan
| | - Wei-Cheng Chen
- Department of Orthopedic Surgery, Mackay Memorial Hospital, Taipei, Taiwan
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22
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Senos R, Chen MTY, Panse I, Stella JJ, Hankenson KD. An Intact Periosteum is Required for Recombinant Human Jagged1 Guided Bone Regeneration in Calvaria Critical-size Defect Healing. J Craniofac Surg 2024; 35:1585-1590. [PMID: 38864638 DOI: 10.1097/scs.0000000000010333] [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: 03/09/2024] [Accepted: 04/23/2024] [Indexed: 06/13/2024] Open
Abstract
The need to promote calvaria bone healing as a consequence of injury or craniotomy is a major clinical issue. Previous reports tested recombinant human Jagged1 (rhJagged1) treatment for critical-size calvaria defects in the absence of periosteum, and this resulted in significant new bone formation. As the periosteum contributes to healing by serving as a source of progenitor cells, the present study aimed to examine whether significantly more bone is formed when the periosteum is intact for using rhJagged1 to treat critical-size parietal bone defects in mice. Fifteen healthy adult mice, 34 to 65 weeks of age, 26.9 to 48.2 g, were divided into different groups that compared the critical-size defects treated with either phosphate-buffered saline or rhJagged1 protein in either the presence or absence of periosteum. The results indicated that more bone was formed in the presence of periosteum when rhJagged1 is delivered [35% bone volume per tissue volume (BV/TV); P = 0.02] relative to nonperiosteum. Recombinant human Jagged1 protein delivered in the absence of periosteum had the next most new bone formed (25% BV/TV). Defects with phosphate-buffered saline delivered in the absence or presence of periosteum had the least new bone formed (15% and 18% BV/TV, respectively; P = 0.48). The results also show that rhJagged1 does not form ectopic or hypertrophic bone. The usage of rhJagged1 to treat critical-size defects in calvaria is promising clinically, but to maximize clinical efficacy it will require that the periosteum be intact on the noninjured portions of calvaria.
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Affiliation(s)
- Rafael Senos
- Department of Orthopedic Surgery, University of Michigan, Ann Arbor, MI
- Department of Biomedical Sciences, College of Veterinary Medicine, Cornell University, Ithaca, NY
| | | | - Isabella Panse
- Department of Orthopedic Surgery, University of Michigan, Ann Arbor, MI
| | | | - Kurt D Hankenson
- Department of Orthopedic Surgery, University of Michigan, Ann Arbor, MI
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23
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Shukla P, Bera AK, Ghosh A, Kiranmai G, Pati F. Assessment and process optimization of high throughput biofabrication of immunocompetent breast cancer model for drug screening applications. Biofabrication 2024; 16:035030. [PMID: 38876096 DOI: 10.1088/1758-5090/ad586b] [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: 03/02/2024] [Accepted: 06/14/2024] [Indexed: 06/16/2024]
Abstract
Recent advancements in 3D cancer modeling have significantly enhanced our ability to delve into the intricacies of carcinogenesis. Despite the pharmaceutical industry's substantial investment of both capital and time in the drug screening and development pipeline, a concerning trend persists: drug candidates screened on conventional cancer models exhibit a dismal success rate in clinical trials. One pivotal factor contributing to this discrepancy is the absence of drug testing on pathophysiologically biomimetic 3D cancer models during pre-clinical stages. Unfortunately, current manual methods of 3D cancer modeling, such as spheroids and organoids, suffer from limitations in reproducibility and scalability. In our study, we have meticulously developed 3D bioprinted breast cancer model utilizing decellularized adipose tissue-based hydrogel obtained via a detergent-free decellularization method. Our innovative printing techniques allows for rapid, high-throughput fabrication of 3D cancer models in a 96-well plate format, demonstrating unmatched scalability and reproducibility. Moreover, we have conducted extensive validation, showcasing the efficacy of our platform through drug screening assays involving two potent anti-cancer drugs, 5-Fluorouracil and PRIMA-1Met. Notably, our platform facilitates effortless imaging and gene expression analysis, streamlining the evaluation process. In a bid to enhance the relevance of our cancer model, we have introduced a heterogeneous cell population into the DAT-based bioink. Through meticulous optimization and characterization, we have successfully developed a biomimetic immunocompetent breast cancer model, complete with microenvironmental cues and diverse cell populations. This breakthrough paves the way for rapid multiplex drug screening and the development of personalized cancer models, marking a paradigm shift in cancer research and pharmaceutical development.
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Affiliation(s)
- Priyanshu Shukla
- Department of Biomedical Engineering, Indian Institute of Technology Hyderabad, Kandi, Sangareddy 502284, Telangana, India
| | - Ashis Kumar Bera
- Department of Biomedical Engineering, Indian Institute of Technology Hyderabad, Kandi, Sangareddy 502284, Telangana, India
| | - Amit Ghosh
- Department of Biomedical Engineering, Indian Institute of Technology Hyderabad, Kandi, Sangareddy 502284, Telangana, India
| | - Gaddam Kiranmai
- Department of Biomedical Engineering, Indian Institute of Technology Hyderabad, Kandi, Sangareddy 502284, Telangana, India
| | - Falguni Pati
- Department of Biomedical Engineering, Indian Institute of Technology Hyderabad, Kandi, Sangareddy 502284, Telangana, India
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24
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Zhang W, Hou Y, Yin S, Miao Q, Lee K, Zhou X, Wang Y. Advanced gene nanocarriers/scaffolds in nonviral-mediated delivery system for tissue regeneration and repair. J Nanobiotechnology 2024; 22:376. [PMID: 38926780 PMCID: PMC11200991 DOI: 10.1186/s12951-024-02580-8] [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: 03/09/2024] [Accepted: 05/24/2024] [Indexed: 06/28/2024] Open
Abstract
Tissue regeneration technology has been rapidly developed and widely applied in tissue engineering and repair. Compared with traditional approaches like surgical treatment, the rising gene therapy is able to have a durable effect on tissue regeneration, such as impaired bone regeneration, articular cartilage repair and cancer-resected tissue repair. Gene therapy can also facilitate the production of in situ therapeutic factors, thus minimizing the diffusion or loss of gene complexes and enabling spatiotemporally controlled release of gene products for tissue regeneration. Among different gene delivery vectors and supportive gene-activated matrices, advanced gene/drug nanocarriers attract exceptional attraction due to their tunable physiochemical properties, as well as excellent adaptive performance in gene therapy for tissue regeneration, such as bone, cartilage, blood vessel, nerve and cancer-resected tissue repair. This paper reviews the recent advances on nonviral-mediated gene delivery systems with an emphasis on the important role of advanced nanocarriers in gene therapy and tissue regeneration.
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Affiliation(s)
- Wanheng Zhang
- Institute of Geriatrics, School of Medicine, Affiliated Nantong Hospital of Shanghai University (The Sixth People's Hospital of Nantong), Shanghai University, Shanghai, 200444, China
- Department of Pharmacy, China Pharmaceutical University, Nanjing, 210009, China
| | - Yan Hou
- Institute of Geriatrics, School of Medicine, Affiliated Nantong Hospital of Shanghai University (The Sixth People's Hospital of Nantong), Shanghai University, Shanghai, 200444, China
- Joint International Research Laboratory of Biomaterials and Biotechnology in Organ Repair (Ministry of Education), Shanghai University, Shanghai, 200444, China
| | - Shiyi Yin
- Department of Pharmacy, China Pharmaceutical University, Nanjing, 210009, China
| | - Qi Miao
- Department of Pharmacy, China Pharmaceutical University, Nanjing, 210009, China
| | - Kyubae Lee
- Department of Biomedical Materials, Konyang University, Daejeon, 35365, Republic of Korea
| | - Xiaojian Zhou
- Department of Pediatrics, Shanghai General Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, 200080, China.
| | - Yongtao Wang
- Institute of Geriatrics, School of Medicine, Affiliated Nantong Hospital of Shanghai University (The Sixth People's Hospital of Nantong), Shanghai University, Shanghai, 200444, China.
- Joint International Research Laboratory of Biomaterials and Biotechnology in Organ Repair (Ministry of Education), Shanghai University, Shanghai, 200444, China.
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25
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Pieroni S, Miceli B, Giboli L, Romano L, Azzi L, Farronato D. Efficacy of the Sausage Technique in Rebuilding the Crestal Buccal Bone Thickness: A Retrospective Analysis. Dent J (Basel) 2024; 12:180. [PMID: 38920881 PMCID: PMC11202426 DOI: 10.3390/dj12060180] [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: 03/17/2024] [Revised: 04/16/2024] [Accepted: 06/05/2024] [Indexed: 06/27/2024] Open
Abstract
The goal was to evaluate the efficacy of the sausage technique in reconstructing the crestal buccal bone thickness, focusing on the distribution shape of the regenerated volume. Ten implants were placed in five patients with Cawood-Howell class IV defects. A cone beam computed tomography (CBCT) was executed at T0 (before surgery). Guided bone regeneration (GBR) with the sausage technique utilized a resorbable collagen membrane, made of a 50% autologous bone and a 50% anorganic bovine bone matrix (ABBM) mixture. After 6 months, a CBCT (T1) was performed before implant placement. Using CBCT software, a plane parallel to the implant axis intersected perpendicular planes every 1.5 mm from the crest level. T0 and T1 CBCT sections were analyzed, yielding 140 measurements. Statistical analysis via SPSS revealed a significant increase in thickness (average 2.82 ± 1.79 mm). Maximum gains occurred at 4.5 mm from the coronal crest line (3.8 ± 1.51 mm). The GBR sausage technique was effective with minimal post-operative complications, yielding the biggest gain at the mid-ridge sagittal area. Within the analysis limitations, it can be assumed that the sausage technique is effective for horizontal GBR in the maxilla, but a lesser volume might be achieved at the crestal level because it seems to follow a bowed regeneration shape.
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Affiliation(s)
| | | | - Luca Giboli
- Implant Center for Edentulism and Jawbone Atrophies, Maxillofacial Surgery and Odontostomatology Unit, Fondazione IRCCS Cà Granda Ospedale Maggiore Policlinico, University of Milan, 20122 Milan, Italy;
| | - Leonardo Romano
- School of Dentistry, Department of Medicine and Surgery, University of Insubria, 21100 Varese, Italy;
| | - Lorenzo Azzi
- Department of Medicine and Technological Innovation, Unit of Oral Medicine and Pathology, ASST dei Sette Laghi, 21100 Varese, Italy;
| | - Davide Farronato
- Department of Medicine and Technological Innovation, Research Center of Innovative Technology and Engineered Biomaterial, University of Insubria, 21100 Varese, Italy;
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26
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Ainiwaer A, Tuerdi M, Zuolipahaer Z, Wang L. Combined application of artificial bone powders and concentrated growth factor membranes on the autotransplantation of mature third molars: A 5-year retrospective case series. Dent Traumatol 2024. [PMID: 38853615 DOI: 10.1111/edt.12974] [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: 02/08/2024] [Revised: 04/29/2024] [Accepted: 05/08/2024] [Indexed: 06/11/2024]
Abstract
AIM This study aimed to observe the efficacy and outcomes of the combined application of artificial bone powder and concentrated growth factor (CGF) membranes for tooth transplantation in cases with wide recipient sockets and small donor teeth. MATERIAL AND METHODS A total of 36 teeth from 36 patients with wide recipient sockets and small donor teeth were enrolled. Autogenous tooth transplantation was performed using bone powders and CGF membranes. After transplantation, the visual analog scale (VAS) score, Landry Wound Healing Index, probing depth (PD), mobility, and gray value of the alveolar bone around the transplanted teeth were measured, and a patient satisfaction questionnaire was administered. All patients underwent clinical and radiographic examinations during follow-up. RESULTS The VAS score of 16 (44.4%) cases after 1 week was 0, and 26 (72.2%) patients showed excellent gingival healing after 2-4 weeks. The PD of a few cases was deeper than 3 mm during the first month; however, returned to normal after 3 months. Although the majority of the transplanted teeth possessed mobility greater than grade I during the first month, the mobility gradually improved within 3 months. The gray value of the alveolar bone around the transplanted teeth, 1 year postoperatively showed no difference with pre-operation (p > .05). During the mean follow-up period of 42.7 months (range 20-72 months), 33 of the 36 transplanted teeth remained in situ without clinical or radiographic complications, with an overall success rate of 91.7%. CONCLUSIONS Although the PD and mobility of the transplanted teeth were not ideal during the early stages of healing, most of the transplanted teeth had good clinical outcomes. In cases with large recipient sites accompanied by small donor teeth, autotransplantation of teeth using artificial bone powder combined with CGF membranes is a viable option and can lead to optimistic results with favorable success rates.
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Affiliation(s)
- Ailimaierdan Ainiwaer
- Department of Oral Surgery Clinic, the First Affiliated Hospital of Xinjiang Medical University (Affiliated Stomatological Hospital), Research Institute of Stomatology of Xinjiang Uygur Autonomous Region, Urumqi, China
| | - Maimaitituxun Tuerdi
- Department of Oral and Maxillofacial Trauma and Orthognathic Surgery, the First Affiliated Hospital of Xinjiang Medical University (Affiliated Stomatological Hospital), Research Institute of Stomatology of Xinjiang Uygur Autonomous Region, Urumqi, China
| | - Zulikamaier Zuolipahaer
- Nursing Department, Urumqi Eye Ear Throat Hospital (Urumqi International Hospital), Urumqi, China
| | - Ling Wang
- Department of Oral Surgery Clinic, the First Affiliated Hospital of Xinjiang Medical University (Affiliated Stomatological Hospital), Research Institute of Stomatology of Xinjiang Uygur Autonomous Region, Urumqi, China
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27
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Bujda M, Klíma K. Enhancing Guided Bone Regeneration with a Novel Carp Collagen Scaffold: Principles and Applications. J Funct Biomater 2024; 15:150. [PMID: 38921524 PMCID: PMC11205119 DOI: 10.3390/jfb15060150] [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: 05/07/2024] [Revised: 05/21/2024] [Accepted: 05/29/2024] [Indexed: 06/27/2024] Open
Abstract
Bone defects resulting from trauma, surgery, and congenital, infectious, or oncological diseases are a functional and aesthetic burden for patients. Bone regeneration is a demanding procedure, involving a spectrum of molecular processes and requiring the use of various scaffolds and substances, often yielding an unsatisfactory result. Recently, the new collagen sponge and its structural derivatives manufactured from European carp (Cyprinus carpio) were introduced and patented. Due to its fish origin, the novel scaffold poses no risk of allergic reactions or transfer of zoonoses and additionally shows superior biocompatibility, mechanical stability, adjustable degradation rate, and porosity. In this review, we focus on the basic principles of bone regeneration and describe the characteristics of an "ideal" bone scaffold focusing on guided bone regeneration. Moreover, we suggest several possible applications of this novel material in bone regeneration processes, thus opening new horizons for further research.
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Affiliation(s)
- Michele Bujda
- Department of Oral and Maxillofacial Surgery, 1st Faculty of Medicine and General University Hospital in Prague, Charles University, 12108 Prague, Czech Republic
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28
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Alazmi SO. A review on guided bone regeneration using titanium mesh. Bioinformation 2024; 20:562-565. [PMID: 39132237 PMCID: PMC11309112 DOI: 10.6026/973206300200562] [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: 05/01/2024] [Revised: 05/31/2024] [Accepted: 05/31/2024] [Indexed: 08/13/2024] Open
Abstract
The gold standard for bone regeneration in atrophic ridge patients is guided bone regeneration (GBR). This makes it possible to get enough bone volume for an appropriate implant-prosthetic rehabilitation. The barrier membranes must meet the primary GBR design requirements, which include adequate integration with the surrounding tissue, spaciousness and clinical manageability. Titanium mesh's superior mechanical qualities and biocompatibility have broadened the indications of GBR technology, enabling it to be used to restore alveolar ridges with more significant bone defects. GBR with titanium mesh is being used in many clinical settings and for a range of clinical procedures. Furthermore, several advancements in digitalization and material modification have resulted from the study of GBR using titanium mesh. Hence, we report a review on the various characteristics of titanium mesh and its current use in clinical settings for bone augmentation.
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Affiliation(s)
- Saad Obaid Alazmi
- Department of Periodontology and Implant Dentistry, College of Dentistry, Qassim University, Saudi Arabia
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29
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Yang Y, Dai Q, Gao X, Zhu Y, Chung MR, Jin A, Liu Y, Wang X, Huang X, Sun S, Xu H, Liu J, Jiang L. Occlusal force orchestrates alveolar bone homeostasis via Piezo1 in female mice. J Bone Miner Res 2024; 39:580-594. [PMID: 38477783 DOI: 10.1093/jbmr/zjae032] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/19/2023] [Revised: 02/07/2024] [Accepted: 02/15/2024] [Indexed: 03/14/2024]
Abstract
Healthy alveolar bone is the cornerstone of oral function and oral treatment. Alveolar bone is highly dynamic during the entire lifespan and is affected by both systemic and local factors. Importantly, alveolar bone is subjected to unique occlusal force in daily life, and mechanical force is a powerful trigger of bone remodeling, but the effect of occlusal force in maintaining alveolar bone mass remains ambiguous. In this study, the Piezo1 channel is identified as an occlusal force sensor. Activation of Piezo1 rescues alveolar bone loss caused by a loss of occlusal force. Moreover, we identify Piezo1 as the mediator of occlusal force in osteoblasts, maintaining alveolar bone homeostasis by directly promoting osteogenesis and by sequentially regulating catabolic metabolism through Fas ligand (FasL)-induced osteoclastic apoptosis. Interestingly, Piezo1 activation also exhibits remarkable efficacy in the treatment of alveolar bone osteoporosis caused by estrogen deficiency, which is highly prevalent among middle-aged and elderly women. Promisingly, Piezo1 may serve not only as a treatment target for occlusal force loss-induced alveolar bone loss but also as a potential target for metabolic bone loss, especially in older patients.
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Affiliation(s)
- Yiling Yang
- Shanghai Key Laboratory of Stomatology, Department of Oral and Cranio-Maxillofacial Science, Center of Craniofacial Orthodontics, National Clinical Research Center of Stomatology, Shanghai Research Institute of Stomatology, Shanghai Jiaotong University School of Medicine, , Ninth People's Hospital, Shanghai, Shanghai 200011, China
| | - Qinggang Dai
- Shanghai Key Laboratory of Stomatology, The 2 nd Dental Center, National Clinical Research Center of Stomatology, Shanghai Research Institute of Stomatology, Shanghai Jiaotong University School of Medicine, Ninth People's Hospital, Shanghai, Shanghai 200011, China
| | - Xin Gao
- Shanghai Key Laboratory of Stomatology, Department of Oral and Cranio-Maxillofacial Science, Center of Craniofacial Orthodontics, National Clinical Research Center of Stomatology, Shanghai Research Institute of Stomatology, Shanghai Jiaotong University School of Medicine, , Ninth People's Hospital, Shanghai, Shanghai 200011, China
| | - Yanfei Zhu
- Shanghai Key Laboratory of Stomatology, Department of Oral and Cranio-Maxillofacial Science, Center of Craniofacial Orthodontics, National Clinical Research Center of Stomatology, Shanghai Research Institute of Stomatology, Shanghai Jiaotong University School of Medicine, , Ninth People's Hospital, Shanghai, Shanghai 200011, China
| | - Mi Ri Chung
- Shanghai Key Laboratory of Stomatology, Department of Oral and Cranio-Maxillofacial Science, Center of Craniofacial Orthodontics, National Clinical Research Center of Stomatology, Shanghai Research Institute of Stomatology, Shanghai Jiaotong University School of Medicine, , Ninth People's Hospital, Shanghai, Shanghai 200011, China
| | - Anting Jin
- Shanghai Key Laboratory of Stomatology, Department of Oral and Cranio-Maxillofacial Science, Center of Craniofacial Orthodontics, National Clinical Research Center of Stomatology, Shanghai Research Institute of Stomatology, Shanghai Jiaotong University School of Medicine, , Ninth People's Hospital, Shanghai, Shanghai 200011, China
| | - Yuanqi Liu
- Shanghai Key Laboratory of Stomatology, Department of Oral and Cranio-Maxillofacial Science, Center of Craniofacial Orthodontics, National Clinical Research Center of Stomatology, Shanghai Research Institute of Stomatology, Shanghai Jiaotong University School of Medicine, , Ninth People's Hospital, Shanghai, Shanghai 200011, China
| | - Xijun Wang
- Shanghai Key Laboratory of Stomatology, Department of Oral and Cranio-Maxillofacial Science, Center of Craniofacial Orthodontics, National Clinical Research Center of Stomatology, Shanghai Research Institute of Stomatology, Shanghai Jiaotong University School of Medicine, , Ninth People's Hospital, Shanghai, Shanghai 200011, China
| | - Xiangru Huang
- Shanghai Key Laboratory of Stomatology, Department of Oral and Cranio-Maxillofacial Science, Center of Craniofacial Orthodontics, National Clinical Research Center of Stomatology, Shanghai Research Institute of Stomatology, Shanghai Jiaotong University School of Medicine, , Ninth People's Hospital, Shanghai, Shanghai 200011, China
| | - Siyuan Sun
- Shanghai Key Laboratory of Stomatology, Department of Oral and Cranio-Maxillofacial Science, Center of Craniofacial Orthodontics, National Clinical Research Center of Stomatology, Shanghai Research Institute of Stomatology, Shanghai Jiaotong University School of Medicine, , Ninth People's Hospital, Shanghai, Shanghai 200011, China
| | - Hongyuan Xu
- Shanghai Key Laboratory of Stomatology, Department of Oral and Cranio-Maxillofacial Science, Center of Craniofacial Orthodontics, National Clinical Research Center of Stomatology, Shanghai Research Institute of Stomatology, Shanghai Jiaotong University School of Medicine, , Ninth People's Hospital, Shanghai, Shanghai 200011, China
| | - Jingyi Liu
- Shanghai Key Laboratory of Stomatology, Department of Oral and Cranio-Maxillofacial Science, Center of Craniofacial Orthodontics, National Clinical Research Center of Stomatology, Shanghai Research Institute of Stomatology, Shanghai Jiaotong University School of Medicine, , Ninth People's Hospital, Shanghai, Shanghai 200011, China
| | - Lingyong Jiang
- Shanghai Key Laboratory of Stomatology, Department of Oral and Cranio-Maxillofacial Science, Center of Craniofacial Orthodontics, National Clinical Research Center of Stomatology, Shanghai Research Institute of Stomatology, Shanghai Jiaotong University School of Medicine, , Ninth People's Hospital, Shanghai, Shanghai 200011, China
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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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Kim YR, Yun EB, Ryu DI, Kim BH, Kim JS, Kim YS, Kang JH, Cho EH, Koh JT, Lim HP, Park C, Lee BN. The potential bone regeneration effects of leptin- and osteolectin-coated 3D-printed PCL scaffolds: an in vivostudy. Biomed Mater 2024; 19:045008. [PMID: 38688311 DOI: 10.1088/1748-605x/ad45d7] [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: 11/29/2023] [Accepted: 04/30/2024] [Indexed: 05/02/2024]
Abstract
This study investigated the effectiveness of bone regeneration upon the application of leptin and osteolectin to a three-dimensional (3D) printed poly(ϵ-caprolactone) (PCL) scaffold. A fused deposition modeling 3D bioprinter was used to fabricate scaffolds with a diameter of 4.5 mm, a height of 0.5 mm, and a pore size of 420-520 nm using PCL (molecular weight: 43 000). After amination of the scaffold surface for leptin and osteolectin adhesion, the experimental groups were divided into the PCL scaffold (control), the aminated PCL (PCL/Amine) scaffold, the leptin-coated PCL (PCL/Leptin) scaffold, and the osteolectin-coated PCL (PCL/Osteo) scaffold. Next, the water-soluble tetrazolium salt-1 (WST-1) assay was used to assess cell viability. All groups exhibited cell viability rates of >100%. Female 7-week-old Sprague-Dawley rats were used forin vivoexperiments. Calvarial defects were introduced on the rats' skulls using a 5.5 mm trephine bur. The rats were divided into the PCL (control), PCL/Leptin, and PCL/Osteo scaffold groups. The scaffolds were then inserted into the calvarial defect areas, and the rats were sacrificed after 8-weeks to analyze the defect area. Micro-CT analysis indicated that the leptin- and osteolectin-coated scaffolds exhibited significantly higher bone regeneration. Histological analysis revealed new bone and blood vessels in the calvarial defect area. These findings indicate that the 3D-printed PCL scaffold allows for patient-customized fabrication as well as the easy application of proteins like leptin and osteolectin. Moreover, leptin and osteolectin did not show cytotoxicity and exhibited higher bone regeneration potential than the existing scaffold.
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Affiliation(s)
- Young-Ran Kim
- Department of Biomedical Engineering, College of Dentistry, Chonnam National University, Gwangju, Republic of Korea
| | - Eun-Byeol Yun
- College of Dentistry, Chonnam National University, Gwangju, Republic of Korea
| | - Dam-In Ryu
- College of Dentistry, Chonnam National University, Gwangju, Republic of Korea
| | - Bo-Hye Kim
- Department of Veterinary Anatomy and Animal Behavior, College of Veterinary Medicine and BK21 FOUR Program, Chonnam National University, Gwangju, Republic of Korea
| | - Joong-Seon Kim
- Department of Veterinary Anatomy and Animal Behavior, College of Veterinary Medicine and BK21 FOUR Program, Chonnam National University, Gwangju, Republic of Korea
| | - Ye-Seul Kim
- Department of Prosthodontics, College of Dentistry, Chonnam National University, Gwangju, Republic of Korea
| | - Jin-Ho Kang
- Department of Prosthodontics, College of Dentistry, Chonnam National University, Gwangju, Republic of Korea
| | - Eun-Hyo Cho
- Department of Conservative Dentistry, College of Dentistry, Chonnam National University, Gwangju, Republic of Korea
| | - Jeong-Tae Koh
- Department of Pharmacology and Dental Therapeutics, College of Dentistry, Chonnam National University, Gwangju, Republic of Korea
| | - Hyun-Pil Lim
- Department of Prosthodontics, College of Dentistry, Chonnam National University, Gwangju, Republic of Korea
| | - Chan Park
- Department of Prosthodontics, College of Dentistry, Chonnam National University, Gwangju, Republic of Korea
| | - Bin-Na Lee
- Department of Conservative Dentistry, College of Dentistry, Chonnam National University, Gwangju, Republic of Korea
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Montalbán-Vadillo O, Pérez-Pevida E, Viteri-Agustín I, Chávarri-Prado D, Estrada-Martínez A, Diéguez-Pereira M, Sánchez-Lasheras F, Brizuela-Velasco A. Effect of Applying 1% Metformin on Guided Bone Regeneration Processes with Bovine-Derived Xenografts. J Clin Med 2024; 13:2973. [PMID: 38792514 PMCID: PMC11122524 DOI: 10.3390/jcm13102973] [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: 04/07/2024] [Revised: 05/13/2024] [Accepted: 05/17/2024] [Indexed: 05/26/2024] Open
Abstract
Background: Although xenografts have shown successful results in GBR procedures due to their osteoconductive properties, many authors have opted to add co-adjuvant drugs to favor osteogenesis and differentiate cells into an osteoblastic lineage. Metformin has been shown to have bone-protective properties, regulating osteoclast differentiation, as well as the ability to promote osteoblast mineralization and differentiation. The present study aimed to evaluate the effect of the local application of a 1% metformin solution on bone neoformation in the treatment of an experimental bone defect in a guided bone regeneration animal model with a particulated bovine hydroxyapatite xenograft with hyaluronate. Methods: With this purpose in mind, two critical defects with 8 mm diameter and 0.5 mm depth were created in eight male New Zealand rabbit calvarias. Titanium cylinders were fixed in each defect and filled with particulate hydroxyapatite of bovine origin and sodium hyaluronate, with sterile injectable saline added to the control group and sterile 1% metformin solution added to the test group. At 6 weeks, the animals were euthanized, and samples were obtained and prepared for histomorphometric analysis. Results: A higher percentage of new bone formation was observed in the metformin samples than in the control samples, both in the region closest to the animal's calvaria and in the most distal region analyzed. A higher average bone-biomaterial contact percentage was observed in the samples, with metformin in both the proximal and distal regions. There was no statistically significant difference in the mean value in either region in both parameters. Conclusion: The local application of a 1% metformin solution in an animal model of guided bone regeneration with particulate bovine hydroxyapatite and hyaluronate resulted in greater bone neoformation and xenograft osseointegration than in the control group.
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Affiliation(s)
- Oier Montalbán-Vadillo
- Department of Surgery, Faculty of Medicine, University of Salamanca, 37007 Salamanca, Spain
| | - Esteban Pérez-Pevida
- Department of Surgery, Faculty of Medicine, University of Salamanca, 37007 Salamanca, Spain
- Faculty of Health Sciences, Miguel de Cervantes European University, 47012 Valladolid, Spain
- EDE-SRGROUP, La Salle Higher Center for University Studies, 28023 Madrid, Spain
| | - Iratxe Viteri-Agustín
- Faculty of Health Sciences, Miguel de Cervantes European University, 47012 Valladolid, Spain
| | - David Chávarri-Prado
- Faculty of Health Sciences, Miguel de Cervantes European University, 47012 Valladolid, Spain
| | | | - Markel Diéguez-Pereira
- Faculty of Health Sciences, Miguel de Cervantes European University, 47012 Valladolid, Spain
| | - Fernando Sánchez-Lasheras
- University Institute of Space Sciences and Technologies of Asturias (ICTEA), University of Oviedo, 33004 Oviedo, Spain
- Department of Mathematics, Faculty of Sciences, University of Oviedo, 33007 Oviedo, Spain
| | - Aritza Brizuela-Velasco
- Faculty of Health Sciences, Miguel de Cervantes European University, 47012 Valladolid, Spain
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Duman I, Tanrıverdi G, Öztürk Özener H. Effects of vitamin K2 administration on guided bone regeneration in diabetic rats. J Periodontal Res 2024. [PMID: 38742688 DOI: 10.1111/jre.13287] [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: 01/03/2024] [Revised: 04/29/2024] [Accepted: 05/01/2024] [Indexed: 05/16/2024]
Abstract
AIM The present study aimed to investigate the histomorphometric and immunohistochemical impacts of vitamin K2 on guided bone regeneration (GBR) in calvarial critical-size defects (CSDs) in diabetic rats. METHODS A total of 30 rats were used in this study, comprising 12 non-diabetic (control) rats and 18 with streptozotocin-nicotinamide-induced experimental Diabetes mellitus (DM). In all rats, two calvarial CSDs were created: one defect was left empty (E), the other was treated with bovine-derived bone graft and collagen-based resorbable membrane (GM). Study groups were as follows: control rats administered saline (n = 6, C-E and C-GM groups) or vitamin K2 (n = 6, CK-E and CK-GM groups) and diabetic rats administered saline (n = 6, DM-E and DM-GM groups) or vitamin K2 (n = 6, DMK-E and DMK-GM groups). After 4 weeks of saline or vitamin K2 administration, the rats were euthanized. Bone defect healing and new bone formation were assessed histomorphometrically, and osteocalcin and osteopontin levels were examined immunohistochemically. RESULTS Percentage of new bone formation was greater in CK-GM vs. CK-E and in DMK-GM vs. DMK-E [d = 3.86 (95% CI = 16.38-28.61), d = 1.86, (95% CI = 10.74-38.58), respectively, p < .05]. Bone defect healing scores were higher in CK-GM vs. CK-E and in DMK-GM vs. DMK-E [d = 2.69 (95% CI = -2.12 to -0.87), d = 3.28 (95% CI = 0.98-1.91), respectively, p < .05]. Osteocalcin expression levels were elevated in CK-GM vs. CK-E, in DMK-GM vs. DMK-E [d = 1.19 (95% CI = 0.08-1.41), d = 1.10 (95% CI = 0.02-1.22), respectively p < .05]. Vitamin K2 enhanced osteocalcin expression levels in DMK-E vs. DM-E [d = 2.78, (95% CI = 0.56-1.53), p < .05] and in DMK-GM vs. DM-GM [d = 2.43, (95% CI = 0.65-2.10), p < .05]. Osteopontin expression was enhanced in defects treated with GM vs. E defects [C-GM vs. C-E, d = 1.56 (95% CI = 0.38-2.01); CK-GM vs. CK-E, d = 1.91 (95% CI = 0.49-1.72); DM-GM vs. DM-E, d = 2.34 (95% CI = -1.12 to -0.50); DMK-GM vs. DMK-E, d = 2.00 (95% CI = 0.58-1.91), p < .05]. CONCLUSION The research findings suggest that administering vitamin K2 in GBR for rats with DM favorably impacts bone healing in CSDs, presenting an adjunctive strategy for bone regeneration.
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Affiliation(s)
- Irmak Duman
- Department of Periodontology, Institute of Health Sciences, Marmara University, Istanbul, Turkey
| | - Gamze Tanrıverdi
- Department of Histology and Embryology, Faculty of Medicine, Istanbul University-Cerrahpasa, Istanbul, Turkey
| | - Hafize Öztürk Özener
- Department of Periodontology, Faculty of Dentistry, Marmara University, Istanbul, Turkey
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Frigério PB, de Moura J, Pitol-Palin L, Monteiro NG, Mourão CF, Shibli JA, Okamoto R. Combination of a Synthetic Bioceramic Associated with a Polydioxanone-Based Membrane as an Alternative to Autogenous Bone Grafting. Biomimetics (Basel) 2024; 9:284. [PMID: 38786494 PMCID: PMC11117809 DOI: 10.3390/biomimetics9050284] [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: 03/15/2024] [Revised: 05/02/2024] [Accepted: 05/04/2024] [Indexed: 05/25/2024] Open
Abstract
The purpose of this study was to evaluate the repair process in rat calvaria filled with synthetic biphasic bioceramics (Plenum® Osshp-70:30, HA:βTCP) or autogenous bone, covered with a polydioxanone membrane (PDO). A total of 48 rats were divided into two groups (n = 24): particulate autogenous bone + Plenum® Guide (AUTOPT+PG) or Plenum® Osshp + Plenum® Guide (PO+PG). A defect was created in the calvaria, filled with the grafts, and covered with a PDO membrane, and euthanasia took place at 7, 30, and 60 days. Micro-CT showed no statistical difference between the groups, but there was an increase in bone volume (56.26%), the number of trabeculae (2.76 mm), and intersection surface (26.76 mm2) and a decrease in total porosity (43.79%) in the PO+PG group, as well as higher values for the daily mineral apposition rate (7.16 µm/day). Histometric analysis presented material replacement and increased bone formation at 30 days compared to 7 days in both groups. Immunostaining showed a similar pattern between the groups, with an increase in proteins related to bone remodeling and formation. In conclusion, Plenum® Osshp + Plenum® Guide showed similar and sometimes superior results when compared to autogenous bone, making it a competent option as a bone substitute.
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Affiliation(s)
- Paula Buzo Frigério
- Department of Diagnosis and Surgery, São Paulo State University (UNESP), School of Dentistry, Araçatuba 16015-050, Brazil; (P.B.F.); (J.d.M.); (L.P.-P.); (N.G.M.)
| | - Juliana de Moura
- Department of Diagnosis and Surgery, São Paulo State University (UNESP), School of Dentistry, Araçatuba 16015-050, Brazil; (P.B.F.); (J.d.M.); (L.P.-P.); (N.G.M.)
| | - Letícia Pitol-Palin
- Department of Diagnosis and Surgery, São Paulo State University (UNESP), School of Dentistry, Araçatuba 16015-050, Brazil; (P.B.F.); (J.d.M.); (L.P.-P.); (N.G.M.)
| | - Naara Gabriela Monteiro
- Department of Diagnosis and Surgery, São Paulo State University (UNESP), School of Dentistry, Araçatuba 16015-050, Brazil; (P.B.F.); (J.d.M.); (L.P.-P.); (N.G.M.)
| | - Carlos Fernando Mourão
- Department of Periodontology, Tufts University School of Dental Medicine, Boston, MA 02111, USA
| | - Jamil Awad Shibli
- Department of Periodontology, Dental Research Division, Guarulhos University, Guarulhos 07023-070, Brazil;
| | - Roberta Okamoto
- Department of Basic Sciences, São Paulo State University (UNESP), School of Dentistry, Araçatuba 16066-840, Brazil;
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Yu HP, Zhu YJ. Guidelines derived from biomineralized tissues for design and construction of high-performance biomimetic materials: from weak to strong. Chem Soc Rev 2024; 53:4490-4606. [PMID: 38502087 DOI: 10.1039/d2cs00513a] [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: 03/20/2024]
Abstract
Living organisms in nature have undergone continuous evolution over billions of years, resulting in the formation of high-performance fracture-resistant biomineralized tissues such as bones and teeth to fulfill mechanical and biological functions, despite the fact that most inorganic biominerals that constitute biomineralized tissues are weak and brittle. During the long-period evolution process, nature has evolved a number of highly effective and smart strategies to design chemical compositions and structures of biomineralized tissues to enable superior properties and to adapt to surrounding environments. Most biomineralized tissues have hierarchically ordered structures consisting of very small building blocks on the nanometer scale (nanoparticles, nanofibers or nanoflakes) to reduce the inherent weaknesses and brittleness of corresponding inorganic biominerals, to prevent crack initiation and propagation, and to allow high defect tolerance. The bioinspired principles derived from biomineralized tissues are indispensable for designing and constructing high-performance biomimetic materials. In recent years, a large number of high-performance biomimetic materials have been prepared based on these bioinspired principles with a large volume of literature covering this topic. Therefore, a timely and comprehensive review on this hot topic is highly important and contributes to the future development of this rapidly evolving research field. This review article aims to be comprehensive, authoritative, and critical with wide general interest to the science community, summarizing recent advances in revealing the formation processes, composition, and structures of biomineralized tissues, providing in-depth insights into guidelines derived from biomineralized tissues for the design and construction of high-performance biomimetic materials, and discussing recent progress, current research trends, key problems, future main research directions and challenges, and future perspectives in this exciting and rapidly evolving research field.
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Affiliation(s)
- Han-Ping Yu
- State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 200050, P. R. China.
| | - Ying-Jie Zhu
- State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 200050, P. R. China.
- Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing 100049, P. R. China
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Refahi P, Shaikh S. Utilizing partially demineralized dentin plate for horizontal ridge augmentation: A case report. Clin Adv Periodontics 2024. [PMID: 38696543 DOI: 10.1002/cap.10291] [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: 02/29/2024] [Revised: 04/05/2024] [Accepted: 04/07/2024] [Indexed: 05/04/2024]
Abstract
BACKGROUND This article intends to showcase a case of guided bone regeneration (GBR) utilizing a partially demineralized dentin plate processed from an extracted second molar for horizontal augmentation of the posterior ridge for implant placement. METHODS AND RESULTS A 60-year-old patient presented with horizontal ridge deficiency at site #30 and an endodontically treated tooth #31 with recurrent decay. A treatment plan was proposed to extract tooth #31 and utilize a dentin graft from the tooth for ridge augmentation at site #30. Following the atraumatic extraction of tooth #31, it was sectioned into a 1 mm thick dentin plate, sterilized, and processed to obtain a demineralized dentin graft. Following a mid-crestal incision and full-thickness flap elevation, the dentin plate was adapted on the buccal defect of site #30 with 10 mm fixation screws, and the gap between the plate and the buccal bone was filled with 0.5 cc of 50/50 cortico-cancellous bone allograft hydrated with saline, covered with collagen membrane followed by primary closure. At 6 months, a postoperative cone-beam computed tomography (CBCT) was obtained to evaluate the ridge width revealing sufficient ridge width for optimal implant placement. The radio-opaque dentin plate was visible on the CBCT depicting integration with the alveolar ridge. Following surgical implant preparation protocol, a 4 mm diameter and 8.5 mm length implant was placed in a restoratively driven position. CONCLUSION This case reports favorable outcomes for GBR using a partially demineralized dentin plate as an alternative to an autogenous bone block graft for horizontal ridge augmentation for future implant placement. KEY POINTS This case introduces a novel method utilizing partially demineralized dentin plates derived from extracted teeth for guided bone regeneration, showcasing its potential efficacy in addressing ridge deficiencies. Success, in this case, relies on meticulous sectioning of the tooth and processing of the dentin graft, precise adaptation and fixation of the graft to the residual ridge, and achieving primary closure for undisturbed healing. Limitations to success include the availability of teeth for extraction coinciding with the need for ridge augmentation and unstable graft fixation.
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Affiliation(s)
- Pooyan Refahi
- Department of Periodontology, Tufts University School of Dental Medicine, Boston, Massachusetts, USA
- Private Practice, Boston, Massachusetts, USA
| | - Samar Shaikh
- Department of Periodontology, Tufts University School of Dental Medicine, Boston, Massachusetts, USA
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Bragaglia M, Sciarretta F, Filetici P, Lettieri-Barbato D, Dassatti L, Nicoletti F, Sibilia D, Aquilano K, Nanni F. Soybean Oil-Based 3D Printed Mesh Designed for Guided Bone Regeneration (GBR) in Oral Surgery. Macromol Biosci 2024; 24:e2300458. [PMID: 38198834 DOI: 10.1002/mabi.202300458] [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: 10/08/2023] [Revised: 12/22/2023] [Indexed: 01/12/2024]
Abstract
This study aims to obtain a cyto-compatible 3D printable bio-resin for the manufacturing of meshes designed from acquired real patients' bone defect to be used in future for guided bone regeneration (GBR), achieving the goal of personalized medicine, decreasing surgical, recovery time, and patient discomfort. To this purpose, a biobased, biocompatible, and photo-curable resin made of acrylated epoxidized soybean oil (AESO) diluted with soybean oil (SO) is developed and 3D printed using a commercial digital light processing (DLP) 3D printer. 3D printed samples show good thermal properties, allowing for thermally-based sterilization process and mechanical properties typical of crosslinked natural oils (i.e., E = 12 MPa, UTS = 1.5 MPa), suitable for the GBR application in the oral surgery. The AESO-SO bio-resin proves to be cytocompatible, allowing for fibroblast cells proliferation (viability at 72 h > 97%), without inducing severe inflammatory response when co-cultured with macrophages, as demonstrated by cytokine antibody arrays, that is anyway resolved in the first 24 h. Moreover, accelerated degradation tests prove that the bio-resin is biodegradable in hydrolytic environments.
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Affiliation(s)
- Mario Bragaglia
- Department of Enterprise Engineering, University of Rome "Tor Vergata", Via del Politecnico 1, Rome, 00133, Italy
| | | | - Pierfrancesco Filetici
- Multispecialty Department of Oral Surgery - Periodontology and Implant-Prosthodontic Rehabilitation, Università Cattolica del Sacro Cuore, Largo F. Vito 1, Rome, 00168, Italy
| | | | - Leonardo Dassatti
- Multispecialty Department of Oral Surgery - Periodontology and Implant-Prosthodontic Rehabilitation, Università Cattolica del Sacro Cuore, Largo F. Vito 1, Rome, 00168, Italy
| | - Fabrizio Nicoletti
- Multispecialty Department of Oral Surgery - Periodontology and Implant-Prosthodontic Rehabilitation, Università Cattolica del Sacro Cuore, Largo F. Vito 1, Rome, 00168, Italy
| | - Diego Sibilia
- Department of Life Science and Public Health, Università Cattolica del Sacro Cuore, Largo F. Vito, 1, Rome, 00168, Italy
| | - Katia Aquilano
- Department of Biology, University of Rome "Tor Vergata", Via della Ricerca scientifica 1, Rome, 00133, Italy
| | - Francesca Nanni
- Department of Enterprise Engineering, University of Rome "Tor Vergata", Via del Politecnico 1, Rome, 00133, Italy
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38
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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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Ali M, Mohd Noor SNF, Mohamad H, Ullah F, Javed F, Abdul Hamid ZA. Advances in guided bone regeneration membranes: a comprehensive review of materials and techniques. Biomed Phys Eng Express 2024; 10:032003. [PMID: 38224615 DOI: 10.1088/2057-1976/ad1e75] [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: 06/06/2023] [Accepted: 01/15/2024] [Indexed: 01/17/2024]
Abstract
Guided tissue/bone regeneration (GTR/GBR) is a widely used technique in dentistry to facilitate the regeneration of damaged bone and tissue, which involves guiding materials that eventually degrade, allowing newly created tissue to take its place. This comprehensive review the evolution of biomaterials for guided bone regeneration that showcases a progressive shift from non-resorbable to highly biocompatible and bioactive materials, allowing for more effective and predictable bone regeneration. The evolution of biomaterials for guided bone regeneration GTR/GBR has marked a significant progression in regenerative dentistry and maxillofacial surgery. Biomaterials used in GBR have evolved over time to enhance biocompatibility, bioactivity, and efficacy in promoting bone growth and integration. This review also probes into several promising fabrication techniques like electrospinning and latest 3D printing fabrication techniques, which have shown potential in enhancing tissue and bone regeneration processes. Further, the challenges and future direction of GTR/GBR are explored and discussed.
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Affiliation(s)
- Mohammed Ali
- School of Materials and Mineral Resources Engineering, Universiti Sains Malaysia, Engineering Campus, 14300, Nibong Tebal, Pulau Pinang, Malaysia
| | - Siti Noor Fazliah Mohd Noor
- Dental Stimulation and Virtual Learning, Research Excellence Consortium, Advanced Medical and Dental Institute (AMDI), Universiti Sains Malaysia, Bertam 13200 Kepala Batas, Pulau Pinang, Malaysia
| | - Hasmaliza Mohamad
- School of Materials and Mineral Resources Engineering, Universiti Sains Malaysia, Engineering Campus, 14300, Nibong Tebal, Pulau Pinang, Malaysia
| | - Faheem Ullah
- School of Materials and Mineral Resources Engineering, Universiti Sains Malaysia, Engineering Campus, 14300, Nibong Tebal, Pulau Pinang, Malaysia
- Department of Biological Sciences, Biopolymer Research Centre (BRC), National University of Medical Sciences, 46000, Rawalpindi, Pakistan
| | - Fatima Javed
- Department of Chemistry, Shaheed Benazir Butto Women University Peshawar, Charsadda Road Laramma, 25000, Peshawar, Pakistan
| | - Zuratul Ain Abdul Hamid
- School of Materials and Mineral Resources Engineering, Universiti Sains Malaysia, Engineering Campus, 14300, Nibong Tebal, Pulau Pinang, Malaysia
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Vasile VA, Pirvulescu RA, Iancu RC, Garhöfer G, Schmetterer L, Ghita AM, Ionescu D, Istrate S, Piticescu RM, Cursaru LM, Popa-Cherecheanu A. Titanium Implants Coated with Hydroxyapatite Used in Orbital Wall Reconstruction-A Literature Review. MATERIALS (BASEL, SWITZERLAND) 2024; 17:1676. [PMID: 38612189 PMCID: PMC11012370 DOI: 10.3390/ma17071676] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/29/2024] [Revised: 04/01/2024] [Accepted: 04/04/2024] [Indexed: 04/14/2024]
Abstract
With the increasing incidences of orbital wall injuries, effective reconstruction materials and techniques are imperative for optimal clinical outcomes. In this literature review, we delve into the efficacy and potential advantages of using titanium implants coated with nanostructured hydroxyapatite for the reconstruction of the orbital wall. Titanium implants, recognized for their durability and mechanical strength, when combined with the osteoconductive properties of hydroxyapatite, present a potentially synergistic solution. The purpose of this review was to critically analyze the recent literature and present the state of the art in orbital wall reconstruction using titanium implants coated with nanostructured hydroxyapatite. This review offers clinicians detailed insight into the benefits and potential drawbacks of using titanium implants coated with nanostructured hydroxyapatite for orbital wall reconstruction. The highlighted results advocate for its benefits in terms of osseointegration and provide a novel strategy for orbital reconstruction, though further studies are essential to establish long-term efficacy and address concerns.
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Affiliation(s)
- Victor A. Vasile
- Department of Ophthalmology, Faculty of Medicine, Carol Davila University of Medicine and Pharmacy, 050474 Bucharest, Romania; (V.A.V.)
- Department of Ophthalmology, Emergency University Hospital, 050098 Bucharest, Romania
| | - Ruxandra A. Pirvulescu
- Department of Ophthalmology, Faculty of Medicine, Carol Davila University of Medicine and Pharmacy, 050474 Bucharest, Romania; (V.A.V.)
- Department of Ophthalmology, Emergency University Hospital, 050098 Bucharest, Romania
| | - Raluca C. Iancu
- Department of Ophthalmology, Faculty of Medicine, Carol Davila University of Medicine and Pharmacy, 050474 Bucharest, Romania; (V.A.V.)
- Department of Ophthalmology, Emergency University Hospital, 050098 Bucharest, Romania
| | - Gerhard Garhöfer
- Department of Clinical Pharmacology, Medical University of Vienna, 1090 Vienna, Austria
| | - Leopold Schmetterer
- Department of Clinical Pharmacology, Medical University of Vienna, 1090 Vienna, Austria
- Singapore National Eye Centre, Singapore Eye Research Institute, Singapore 168751, Singapore
- Ophthalmology and Visual Sciences Academic Clinical Program, Duke-NUS Medical School, National University of Singapore, Singapore 169857, Singapore
- SERI-NTU Advanced Ocular Engineering (STANCE), Singapore 639798, Singapore
- School of Chemical and Biological Engineering, Nanyang Technological University, Singapore 637459, Singapore
- Center for Medical Physics and Biomedical Engineering, Medical University of Vienna, 1090 Vienna, Austria
- Institute of Molecular and Clinical Ophthalmology, 4056 Basel, Switzerland
| | - Aurelian M. Ghita
- Department of Ophthalmology, Faculty of Medicine, Carol Davila University of Medicine and Pharmacy, 050474 Bucharest, Romania; (V.A.V.)
- Department of Ophthalmology, Emergency University Hospital, 050098 Bucharest, Romania
| | - Diana Ionescu
- Department of ENT, Children’s Clinical Hospital “Dr. V. Gomoiu”, 022102 Bucharest, Romania
| | | | - Roxana M. Piticescu
- Nanostructured Materials Laboratory, National R&D Institute for Nonferrous and Rare Metals, 077145 Pantelimon, Romania
| | - Laura M. Cursaru
- Nanostructured Materials Laboratory, National R&D Institute for Nonferrous and Rare Metals, 077145 Pantelimon, Romania
| | - Alina Popa-Cherecheanu
- Department of Ophthalmology, Faculty of Medicine, Carol Davila University of Medicine and Pharmacy, 050474 Bucharest, Romania; (V.A.V.)
- Department of Ophthalmology, Emergency University Hospital, 050098 Bucharest, Romania
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Brogini S, Crovace A, Piccininni A, Serratore G, Marchiori G, Maglio M, Guglielmi P, Cusanno A, De Napoli L, Conte R, Fini M, Ambrogio G, Palumbo G, Giavaresi G. In vivo validation of highly customized cranial Ti-6AL-4V ELI prostheses fabricated through incremental forming and superplastic forming: an ovine model study. Sci Rep 2024; 14:7959. [PMID: 38575608 PMCID: PMC10995190 DOI: 10.1038/s41598-024-57629-3] [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: 07/13/2023] [Accepted: 03/20/2024] [Indexed: 04/06/2024] Open
Abstract
Cranial reconstructions are essential for restoring both function and aesthetics in patients with craniofacial deformities or traumatic injuries. Titanium prostheses have gained popularity due to their biocompatibility, strength, and corrosion resistance. The use of Superplastic Forming (SPF) and Single Point Incremental Forming (SPIF) techniques to create titanium prostheses, specifically designed for cranial reconstructions was investigated in an ovine model through microtomographic and histomorphometric analyses. The results obtained from the explanted specimens revealed significant variations in bone volume, trabecular thickness, spacing, and number across different regions of interest (VOIs or ROIs). Those regions next to the center of the cranial defect exhibited the most immature bone, characterized by higher porosity, decreased trabecular thickness, and wider trabecular spacing. Dynamic histomorphometry demonstrated differences in the mineralizing surface to bone surface ratio (MS/BS) and mineral apposition rate (MAR) depending on the timing of fluorochrome administration. A layer of connective tissue separated the prosthesis and the bone tissue. Overall, the study provided validation for the use of cranial prostheses made using SPF and SPIF techniques, offering insights into the processes of bone formation and remodeling in the implanted ovine model.
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Affiliation(s)
- Silvia Brogini
- Scienze e Tecnologie Chirurgiche, IRCCS Istituto Ortopedico Rizzoli, Via Di Barbiano, 1/10, Bologna, Italy
| | - Alberto Crovace
- Dipartimento di Medicina Veterinaria, Università di Sassari, Via Vienna 2, 07100, Sassari, Italy
| | - Antonio Piccininni
- Dipartimento di Meccanica, Matematica e Management, Politecnico di Bari, Via Orabona 4, 70125, Bari, Italy.
| | - Giuseppe Serratore
- Dipartimento di Ingegneria Meccanica, Energetica e Gestionale, Università Della Calabria, Ponte P. Bucci Cubo 45C, 87036, Rende, CS, Italy
| | - Gregorio Marchiori
- Scienze e Tecnologie Chirurgiche, IRCCS Istituto Ortopedico Rizzoli, Via Di Barbiano, 1/10, Bologna, Italy
| | - Melania Maglio
- Scienze e Tecnologie Chirurgiche, IRCCS Istituto Ortopedico Rizzoli, Via Di Barbiano, 1/10, Bologna, Italy
| | - Pasquale Guglielmi
- Dipartimento di Meccanica, Matematica e Management, Politecnico di Bari, Via Orabona 4, 70125, Bari, Italy
| | - Angela Cusanno
- Dipartimento di Meccanica, Matematica e Management, Politecnico di Bari, Via Orabona 4, 70125, Bari, Italy
| | - Luigi De Napoli
- Dipartimento di Ingegneria Meccanica, Energetica e Gestionale, Università Della Calabria, Ponte P. Bucci Cubo 45C, 87036, Rende, CS, Italy
| | - Romina Conte
- Dipartimento di Ingegneria Meccanica, Energetica e Gestionale, Università Della Calabria, Ponte P. Bucci Cubo 45C, 87036, Rende, CS, Italy
| | - Milena Fini
- Direzione Scientifica, IRCCS Istituto Ortopedico Rizzoli, Via di Barbiano, 1/10, Bologna, Italy
| | - Giuseppina Ambrogio
- Dipartimento di Ingegneria Meccanica, Energetica e Gestionale, Università Della Calabria, Ponte P. Bucci Cubo 45C, 87036, Rende, CS, Italy
| | - Gianfranco Palumbo
- Dipartimento di Meccanica, Matematica e Management, Politecnico di Bari, Via Orabona 4, 70125, Bari, Italy
| | - Gianluca Giavaresi
- Scienze e Tecnologie Chirurgiche, IRCCS Istituto Ortopedico Rizzoli, Via Di Barbiano, 1/10, Bologna, Italy
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Keddar M, Evrard L, Shall F. Horizontal ridge augmentation using guided bone regeneration with an association of particulate allografts mixed with platelet-rich fibrin, collagen membrane and tent-screws: A prospective study. JOURNAL OF STOMATOLOGY, ORAL AND MAXILLOFACIAL SURGERY 2024:101872. [PMID: 38582352 DOI: 10.1016/j.jormas.2024.101872] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/08/2024] [Revised: 03/21/2024] [Accepted: 04/03/2024] [Indexed: 04/08/2024]
Abstract
BACKGROUND Guided Bone Regeneration (GBR) is a versatile technique employed not only to correct pre-implant alveolar bone defects but also to facilitate bone defect correction during simultaneous implant placement. The effectiveness of GBR varies significantly among different protocols, as reported in the literature. This study specifically aimed to radiologically evaluate the horizontal bone gain obtained using a GBR procedure combining a particulate allograft, platelet-rich fibrin, resorbable collagen membrane, and screw tents. MATERIALS AND METHODS A total of 42 patients with an insufficient alveolar bone width for dental implant placement were treated with a GBR technique using a mixture of particulate allograft (demineralised freeze-dried bone allograft 300-500 and 500-1000 µm), advanced platelet-rich fibrin (A-PRF), resorbable collagen membranes and screws tents (1.2 mm in diameter). Over the course of the study, a total of 63 GBR procedures were performed on these patients. Bone gains were measured by cone-beam computed tomography at 9.1 ± 2.0 months post-operative. RESULTS A significant mean increase (P < 0.001) of 3.2 ± 0.9 mm at the sites of the greatest bone defect was observed. This improvement was consistent across various locations, including both maxillary and mandibular regions, and in cases of terminal and embedded edentulism, without any post-operative complications during the entire post-operative follow-up. All patients benefited from implant placement following the bone augmentation protocol. CONCLUSION GBR combining particulate allografts, A-PRF, collagen membranes, and screw tents achieves reliable, predictable, and reproducible clinical gains that allow for future implant placement.
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Affiliation(s)
- Mehdi Keddar
- Oral and Maxillofacial Surgery Department, Université libre de Bruxelles (ULB), Hôpital Universitaire de Bruxelles (HUB), HUB Hôpital Erasme, 808 route de Lennik, B-1070, Bruxelles, Belgium.
| | - Laurence Evrard
- Oral and Maxillofacial Surgery Department, Université libre de Bruxelles (ULB), Hôpital Universitaire de Bruxelles (HUB), HUB Hôpital Erasme, 808 route de Lennik, B-1070, Bruxelles, Belgium
| | - Firas Shall
- Oral and Maxillofacial Surgery Department, Université libre de Bruxelles (ULB), Hôpital Universitaire de Bruxelles (HUB), HUB Hôpital Erasme, 808 route de Lennik, B-1070, Bruxelles, Belgium
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Orlando F, Foiani S, Dellavia C, Graziano D, Di Stefano DA. Horizontal GBR with anorganic equine bone combined with a customized titanium mesh. Clin Case Rep 2024; 12:e8780. [PMID: 38659499 PMCID: PMC11039487 DOI: 10.1002/ccr3.8780] [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: 02/13/2024] [Accepted: 03/27/2024] [Indexed: 04/26/2024] Open
Abstract
This case report describes the fixed rehabilitation of the lower left arch in a patient following an horizontal GBR procedure by means of a customized titanium mesh and a new slow resorption bone substitute of equine origin.
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Affiliation(s)
- Francesco Orlando
- Private Practice, Centro Odontoiatrico e Protesico Civitali S.R.L.MilanItaly
- Dental SchoolVita‐Salute University IRCCS San RaffaeleMilanItaly
| | - Simone Foiani
- Private Practice, Centro Odontoiatrico e Protesico Civitali S.R.L.MilanItaly
| | - Claudia Dellavia
- Department of Biomedical Surgical and Dental SciencesUniversità Degli Studi di MilanoMilanItaly
| | - Daniele Graziano
- Department of Biomedical Surgical and Dental SciencesUniversità Degli Studi di MilanoMilanItaly
| | - Danilo Alessio Di Stefano
- Private Practice, Centro Odontoiatrico e Protesico Civitali S.R.L.MilanItaly
- Department of DentistryVita‐Salute San Raffaele University MilanMilanItaly
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Málaga-Figueroa L, Alarcón MA, Pannuti CM, Horna P, López-Pacheco A, Gómez M, Jiménez P, Romito GA, Lozano E, Duque A, Montealegre M, Vega MVM, Galindo R, Umanzor V, Zerón A, Barrios C, Shedden M, Castillo R, Collins J, Bueno L, Giménez X, Sanz M, Herrera D. Ibero-Panamerican Federation of Periodontology Delphi study on the trends of periodontology and periodontics by the year 2030. A Latin American consensus. J Periodontal Res 2024; 59:237-248. [PMID: 38135675 DOI: 10.1111/jre.13221] [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: 07/26/2023] [Accepted: 11/22/2023] [Indexed: 12/24/2023]
Abstract
BACKGROUND AND OBJECTIVE As elsewhere in the world, the prevalence of periodontitis in stages I-II is high in the Latin American population, this scenario emphasizes the need for identification of urgent needs for allocating adequate resources to provide diagnosis, prevention, and treatment of these diseases. The aim of this Delphi study was to predict the trends in periodontology/periodontics in the Latin American region by the year 2030. METHODS A steering committee and an advisory group of experts in periodontology/periodontics were selected from 16 countries. An open questionnaire of 60 questions was validated and used following the Delphi methodology. RESULTS Two hundred and twenty-five experts from Latin America answered the two rounds of the questionnaire. Moderate to strong consensus was reached on 45 questions (75%). The prediction was that the prevalence of gingivitis and periodontitis in stages I and II will be maintained, the importance of the link with systemic diseases will increase, and the impact of prevention and periodontal treatment will also increase, mainly in the private sector. There was a strong consensus that plastic and regenerative surgical procedures will increase, as well as the demand for training in the specialty of periodontology. CONCLUSIONS The present study has provided relevant and useful information on predictions in periodontology/periodontics in Latin America, with important level of consensus among experts. It has been predicted that periodontitis will still be a highly prevalent disease, and its links with other medical conditions should demand more attention by health authorities to develop adequate prevention and management policies and strategies.
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Affiliation(s)
- Lilian Málaga-Figueroa
- PerioImplant Research Group UPCH, Academic Department of Clinical Stomatology, Cayetano Heredia Peruvian University, Lima, Peru
| | - Marco Antonio Alarcón
- PerioImplant Research Group UPCH, Academic Department of Clinical Stomatology, Cayetano Heredia Peruvian University, Lima, Peru
| | - Claudio Mendes Pannuti
- Department of Periodontology, School of Dentistry, University of São Paulo, São Paulo, Brazil
| | - Patricia Horna
- PerioImplant Research Group UPCH, Academic Department of Clinical Stomatology, Cayetano Heredia Peruvian University, Lima, Peru
| | - Andrea López-Pacheco
- PerioImplant Research Group UPCH, Academic Department of Clinical Stomatology, Cayetano Heredia Peruvian University, Lima, Peru
| | - Mariel Gómez
- Faculty of Health Sciences, Department of Periodontics, Maimonides University, Buenos Aires, Argentina
| | | | | | - Elizabeth Lozano
- Private Practice, Chilean Society of Periodontology, Santiago de Chile, Chile
| | - Andrés Duque
- Department of Periodontology, School of Dentistry, Universidad CES, Medellín, Colombia
| | - Mauricio Montealegre
- Private Practice, Perio Costa Rica Institute, Costa Rican Society of Periodontology, San José, Costa Rica
| | | | - Roberto Galindo
- Postgraduate Periodontology and Oral Implantology, Universidad Francisco Marroquín, Ciudad de Guatemala, Guatemala
| | - Vilma Umanzor
- Private Practice, Periodontics and Implant Dentistry, Department of Social/Prevention, School of Dentistry, Universidad Nacional Autónoma de Honduras, Tegucigalpa, Honduras
| | - Agustín Zerón
- Editor of the Journal of the Mexican Dental Association, Mexico City, Mexico
| | - Carlos Barrios
- Private Practice, Institute of Advance dentistry, Asunción, Paraguay
| | | | - Ruth Castillo
- PerioImplant Research Group UPCH, Academic Department of Clinical Stomatology, Cayetano Heredia Peruvian University, Lima, Peru
| | - James Collins
- Department of Periodontology, School of Dentistry, Pontificia Universidad Católica Madre y Maestra (PUCMM), Santo Domingo, Dominican Republic
| | - Luis Bueno
- Periodontics Department, School of Dentistry, Universidad de la República, Montevideo, Uruguay
| | - Xiomara Giménez
- PerioImplant Research Group UCV, University Central of Venezuelan, Caracas, Venezuela
| | - Mariano Sanz
- ETEP (Etiology and Therapy of Periodontal and Peri-Implant Diseases) Research Group, University Complutense of Madrid, Madrid, Spain
| | - David Herrera
- ETEP (Etiology and Therapy of Periodontal and Peri-Implant Diseases) Research Group, University Complutense of Madrid, Madrid, Spain
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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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Li P, Dai J, Li Y, Alexander D, Čapek J, Geis-Gerstorfer J, Wan G, Han J, Yu Z, Li A. Zinc based biodegradable metals for bone repair and regeneration: Bioactivity and molecular mechanisms. Mater Today Bio 2024; 25:100932. [PMID: 38298560 PMCID: PMC10826336 DOI: 10.1016/j.mtbio.2023.100932] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2023] [Revised: 12/12/2023] [Accepted: 12/25/2023] [Indexed: 02/02/2024] Open
Abstract
Bone fractures and critical-size bone defects are significant public health issues, and clinical treatment outcomes are closely related to the intrinsic properties of the utilized implant materials. Zinc (Zn)-based biodegradable metals (BMs) have emerged as promising bioactive materials because of their exceptional biocompatibility, appropriate mechanical properties, and controllable biodegradation. This review summarizes the state of the art in terms of Zn-based metals for bone repair and regeneration, focusing on bridging the gap between biological mechanism and required bioactivity. The molecular mechanism underlying the release of Zn ions from Zn-based BMs in the improvement of bone repair and regeneration is elucidated. By integrating clinical considerations and the specific bioactivity required for implant materials, this review summarizes the current research status of Zn-based internal fixation materials for promoting fracture healing, Zn-based scaffolds for regenerating critical-size bone defects, and Zn-based barrier membranes for reconstituting alveolar bone defects. Considering the significant progress made in the research on Zn-based BMs for potential clinical applications, the challenges and promising research directions are proposed and discussed.
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Affiliation(s)
- Ping Li
- Center of Oral Implantology, Stomatological Hospital, School of Stomatology, Southern Medical University, South Jiangnan Road No. 366, Guangzhou 510280, China
- School and Hospital of Stomatology, Guangdong Engineering Research Center of Oral Restoration and Reconstruction, Guangzhou Medical University, Guangzhou, Guangdong, 510182, China
- Department of Prosthodontics, School and Hospital of Stomatology, Guangzhou Medical University, Guangzhou, Guangdong, 510182, China
| | - Jingtao Dai
- Department of Orthodontics, Stomatological Hospital, School of Stomatology, Southern Medical University, South Jiangnan Road No. 366, Guangzhou 510280, China
| | - Yageng Li
- Beijing Advanced Innovation Center for Materials Genome Engineering, School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing 100083, China
| | - Dorothea Alexander
- Department of Oral and Maxillofacial Surgery, University Hospital Tübingen, Osianderstrasse 2-8, Tübingen 72076, Germany
| | - Jaroslav Čapek
- FZU – the Institute of Physics, Czech Academy of Sciences, Na Slovance 1999/2, Prague 8, 18200, Czech Republic
| | - Jürgen Geis-Gerstorfer
- Section Medical Materials Science and Technology, University Hospital Tübingen, Osianderstrasse 2-8, Tübingen 72076, Germany
| | - Guojiang Wan
- Key Laboratory of Advanced Technologies of Materials, Ministry of Education, School of Materials Science and Engineering, Southwest Jiaotong University, Chengdu 610031, China
| | - Jianmin Han
- National Engineering Laboratory for Digital and Material Technology of Stomatology, Department of Dental Materials, Peking University School and Hospital of Stomatology, Beijing 100081, China
| | - Zhentao Yu
- Institute of Advanced Wear & Corrosion Resistant and Functional Materials, Jinan University, Guangzhou 510632, China
| | - An Li
- Department of Periodontology, Stomatological Hospital, School of Stomatology, Southern Medical University, South Jiangnan Road 366, Guangzhou 510280, China
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Cervino G, Fiorillo L, Scotti N, Motta FA, Motta FM, Colombo J, Heboyan A, Baldi D. Magneto-dynamic tool for full arch immediate loading in post-traumatic restoration with narrow implants: A case report. SAGE Open Med Case Rep 2024; 12:2050313X241241191. [PMID: 38559405 PMCID: PMC10981855 DOI: 10.1177/2050313x241241191] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2024] [Accepted: 03/05/2024] [Indexed: 04/04/2024] Open
Abstract
New surgical techniques using narrow, tilted implants positioned through a magneto-dynamic tool in guided surgery for a Toronto restoration. A 69-year-old woman wanted fixed rehabilitation to replace her removable complete dentures. A cone-beam computed tomography showed significant bone resorption in both the maxillary and mandibular regions. The plan was to load the entire upper arch with six implants immediately, while removable partial dentures were recommended for the lower jaw. The guided surgery project was aligned with the new dentures, and the laboratory created a printed cast with dental implant analogues in planned positions. A metal-reinforced denture was constructed, and surgery was performed to place six narrow implants using the magneto-dynamic instrument. The denture was directly screwed onto multi-unit abutments. Final rehabilitation was completed after 6 months. Narrow implants can be a good option for fixed, full-arch rehabilitations. Further research is needed to confirm these findings on a larger scale.
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Affiliation(s)
- Gabriele Cervino
- Department of Biomedical and Dental Sciences, Morphological and Functional Images, University of Messina, Messina, Italy
| | - Luca Fiorillo
- Department of Biomedical and Dental Sciences, Morphological and Functional Images, University of Messina, Messina, Italy
- Multidisciplinary Department of Medical-Surgical and Odontostomatological Specialties, University of Campania ‘Luigi Vanvitelli’, Naples, Italy
- Department of Dental Cell Research, Dr. D.Y. Patil Dental College & Hospital, Dr. D.Y. Patil Vidyapeeth, Pune, Maharashtra, India
| | - Nicola Scotti
- Department of Surgical Sciences, University of Turin, Turin, Italy
| | - Francesco Alessandro Motta
- Division of Prosthetic Dentistry, Department of Surgical Sciences (DISC), University of Genoa, Genoa, Italy
| | - Francesco Maria Motta
- Division of Prosthetic Dentistry, Department of Surgical Sciences (DISC), University of Genoa, Genoa, Italy
| | - Jacopo Colombo
- Division of Prosthetic Dentistry, Department of Surgical Sciences (DISC), University of Genoa, Genoa, Italy
| | - Artak Heboyan
- Department of Prosthodontics, Faculty of Stomatology, Yerevan State Medical University after Mkhitar Heratsi, Yerevan, Armenia
- Department of Research Analytics, Saveetha Dental College and Hospitals, Saveetha Institute of Medical and Technical Sciences, Saveetha University, Chennai, India
| | - Domenico Baldi
- Division of Prosthetic Dentistry, Department of Surgical Sciences (DISC), University of Genoa, Genoa, Italy
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48
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Loukelis K, Koutsomarkos N, Mikos AG, Chatzinikolaidou M. Advances in 3D bioprinting for regenerative medicine applications. Regen Biomater 2024; 11:rbae033. [PMID: 38845855 PMCID: PMC11153344 DOI: 10.1093/rb/rbae033] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2023] [Revised: 03/13/2024] [Accepted: 03/17/2024] [Indexed: 06/09/2024] Open
Abstract
Biofabrication techniques allow for the construction of biocompatible and biofunctional structures composed from biomaterials, cells and biomolecules. Bioprinting is an emerging 3D printing method which utilizes biomaterial-based mixtures with cells and other biological constituents into printable suspensions known as bioinks. Coupled with automated design protocols and based on different modes for droplet deposition, 3D bioprinters are able to fabricate hydrogel-based objects with specific architecture and geometrical properties, providing the necessary environment that promotes cell growth and directs cell differentiation towards application-related lineages. For the preparation of such bioinks, various water-soluble biomaterials have been employed, including natural and synthetic biopolymers, and inorganic materials. Bioprinted constructs are considered to be one of the most promising avenues in regenerative medicine due to their native organ biomimicry. For a successful application, the bioprinted constructs should meet particular criteria such as optimal biological response, mechanical properties similar to the target tissue, high levels of reproducibility and printing fidelity, but also increased upscaling capability. In this review, we highlight the most recent advances in bioprinting, focusing on the regeneration of various tissues including bone, cartilage, cardiovascular, neural, skin and other organs such as liver, kidney, pancreas and lungs. We discuss the rapidly developing co-culture bioprinting systems used to resemble the complexity of tissues and organs and the crosstalk between various cell populations towards regeneration. Moreover, we report on the basic physical principles governing 3D bioprinting, and the ideal bioink properties based on the biomaterials' regenerative potential. We examine and critically discuss the present status of 3D bioprinting regarding its applicability and current limitations that need to be overcome to establish it at the forefront of artificial organ production and transplantation.
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Affiliation(s)
- Konstantinos Loukelis
- Department of Materials Science and Technology, University of Crete, Heraklion 70013, Greece
| | - Nikos Koutsomarkos
- Department of Materials Science and Technology, University of Crete, Heraklion 70013, Greece
| | - Antonios G Mikos
- Department of Bioengineering, Rice University, Houston, TX 77030, USA
| | - Maria Chatzinikolaidou
- Department of Materials Science and Technology, University of Crete, Heraklion 70013, Greece
- Institute of Electronic Structure and Laser (IESL), Foundation for Research and Technology Hellas (FORTH), Heraklion 70013, Greece
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49
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Ghambaryan N, Yessayan L, Hakobyan G. Long-term effectiveness of UV functionalised short (≤ 6 mm) dental implants placed in the posterior segments of the atrophied maxilla: controlled case series. Odontology 2024:10.1007/s10266-024-00926-0. [PMID: 38526626 DOI: 10.1007/s10266-024-00926-0] [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: 06/06/2023] [Accepted: 03/01/2024] [Indexed: 03/27/2024]
Abstract
This study evaluated long-term effectiveness UV functionalised short implants (≤ 6 mm) placed in the posterior segments of the atrophied maxilla. The study included 47 patients from 2018 to 2023 (aged 27 to 56 years, 24 women and 23 men) without any systemic diseases, with unilateral/bilateral missing teeth and vertical atrophy of the posterior maxillary area. Total installed were 64 short UV-functionalized implants and 62 standard implants over 10 mm in length in segments maxilla with sufficient bone parameters. Clinical, laboratory and cone beam computed tomography (CBCT) methods were used to plan implant therapy. The clinical indices included the following parameters: ISQ, MBL, OHIP-G scale. For short implants, the median ISQ at placement was 62.2 for primary stability and the median ISQ at 5 months was 69.6 ISQ. For standard implant, the mean ISQ at placement was 64.3 ISQ, and ISQ after 5 months was 71.6 ISQ. After 6 months mean MBL short implants 0.87 mm, after 1 year 1.13 mm, after 5 years was 1.48 mm. After 6 months mean MBL standard implants 0.84 mm, after 1 year 1.24 mm, after 5 years was 1.58 mm. Mean OHIP-G scores-patients satisfaction with the implant at 4.8 ± 0.3, satisfaction with the operation 4.6 ± 0.4; satisfaction with prosthetics 4.7 ± 0.5. Cumulative success rate 5 years short implants was 96.7%, standard implants was 97.4%, and prosthesis cumulative survival rate was 97.2%. Short ultraviolet functionalized implants used in the posterior resorbed segment of maxilla have been shown to be a reliable alternative to sinus lift, demonstrating fewer complications, reduction in the number of additional surgical interventions and showed satisfactory long-term survival.
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Affiliation(s)
- Naira Ghambaryan
- Department of Surgical Stomatology and Maxillofacial Surgery, Yerevan State Medical University After M. Heratsi, Yerevan, Armenia
| | - Lazar Yessayan
- Department of Therapeutic Stomatology, Yerevan State Medical University. M. Heratsi, Yerevan, Armenia
| | - Gagik Hakobyan
- Department of Surgical Stomatology and Maxillofacial Surgery, Yerevan State Medical University After M. Heratsi, Yerevan, Armenia.
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50
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Saleh RN, Ashhab C, Kharoufeh MV, Lahham CE. Management of a severely atrophic maxilla using concentrated platelet-rich fibrin block. A case report. J Surg Case Rep 2024; 2024:rjae165. [PMID: 38505338 PMCID: PMC10948739 DOI: 10.1093/jscr/rjae165] [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: 02/07/2024] [Accepted: 02/24/2024] [Indexed: 03/21/2024] Open
Abstract
Tooth loss often leads to significant alveolar bone resorption, presenting a challenge for dental implant placement. This case report presents the effectiveness of concentrated platelet-rich fibrin (C-PRF) in combination with bone allograft for horizontal bone augmentation in a severely atrophic maxilla. A 33-year-old female patient with extensive bone loss in the upper anterior maxilla was treated in two stages. The initial stage involved horizontal bone augmentation using a mixture of C-PRF and bone allograft. This was followed, 5 months later, by dental implant placement. The preparation of C-PRF, surgical procedure, and postoperative care are thoroughly described. Post-treatment Cone Beam Computed Tomography showed an increase in alveolar bone thickness from 2.4-3.4 mm pre-operatively to 6.3-7.3 mm, demonstrating the procedure's effectiveness in achieving adequate bone volume for implant placement. The use of C-PRF with allograft in horizontal bone augmentation shows promise in enhancing bone regeneration, especially in a severely atrophic maxilla.
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Affiliation(s)
- Raghad N Saleh
- Oral and Maxillofacial Surgery Department, University College London, London EC4N 1SA, UK
| | - Celine Ashhab
- Graduate Studies, Arab American University, Ramallah 00970, Palestine
| | | | - Cezar Edward Lahham
- Periodontics Department, Arab American University, Bethlehem 00970, Palestine
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