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Wang X, Tang P, Yang K, Guo S, Tang Y, Zhang H, Wang Q. Regulation of bone homeostasis by traditional Chinese medicine active scaffolds and enhancement for the osteoporosis bone regeneration. JOURNAL OF ETHNOPHARMACOLOGY 2024; 329:118141. [PMID: 38570149 DOI: 10.1016/j.jep.2024.118141] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/07/2023] [Revised: 03/18/2024] [Accepted: 03/30/2024] [Indexed: 04/05/2024]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE The active ingredients of traditional Chinese medicine (TCM), such as naringin (NG), Eucommiol, isopsoralen, icariin, Astragalus polysaccharides, and chondroitin sulfate, contained in Drynariae Rhizoma, Eucommiae Cortex, Psoralea corylifolia, Herba Epimedii, Astragalus radix and deer antler, are considered promising candidates for enhancing the healing of osteoporotic defects due to their outstanding bone homeostasis regulating properties. They are commonly used to activate bone repair scaffolds. AIM OF THE REVIEW Bone repair scaffolds are inadequate to meet the demands of osteoporotic defect healing due to the lack of regulation of bone homeostasis. Therefore, selecting bone scaffolds activated with TCM to improve the therapeutic effect of repairing osteoporotic bone defects. MATERIALS AND METHODS To gather information on bone scaffold activated by traditional Chinese medicine, we conducted a thorough search of several scientific databases, including Google Scholar, Web of Science, Scifinder, Baidu Scholar, PubMed, and China National Knowledge Infrastructure (CNKI). RESULTS This review discusses the mechanism of TCM active ingredients in regulating bone homeostasis, including stimulating bone formation and inhibiting bone resorption process and the healing mechanism of traditional bone repair scaffolds activated by them for osteoporotic defect healing. CONCLUSION In general, the introduction of TCM active ingredients provides a novel therapeutic approach for modulating bone homeostasis and facilitating osteoporotic defect healing, and also offers a new strategy for design of other unconventional bone defect healing materials.
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Affiliation(s)
- Xi Wang
- School of Mechanical Engineering, Institute for Advanced Study, Chengdu University, Chengdu, 610106, China
| | - Pengfei Tang
- Failure Mechanics & Engineering Disaster Prevention and Mitigation, Key Laboratory of Sichuan Province, College of Architecture & Environment, Sichuan University, Chengdu, 610065, China
| | - Kun Yang
- School of Mechanical Engineering, Institute for Advanced Study, Chengdu University, Chengdu, 610106, China
| | - Shuangquan Guo
- Chengdu Holy (Group) Industry Co. Ltd., Chengdu, 610041, China
| | - Youhong Tang
- Institute for Nanoscale Science and Technology, College of Science and Engineering, Flinders University, South Australia 5042, Australia
| | - Hongping Zhang
- School of Mechanical Engineering, Institute for Advanced Study, Chengdu University, Chengdu, 610106, China.
| | - Qingyuan Wang
- School of Mechanical Engineering, Institute for Advanced Study, Chengdu University, Chengdu, 610106, China; Failure Mechanics & Engineering Disaster Prevention and Mitigation, Key Laboratory of Sichuan Province, College of Architecture & Environment, Sichuan University, Chengdu, 610065, China.
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2
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Strähle UT, Pütz N, Hannig M. A coating machine for coating filaments with bioactive nanomaterials for extrusion 3D printing. Heliyon 2024; 10:e33223. [PMID: 39027443 PMCID: PMC11254607 DOI: 10.1016/j.heliyon.2024.e33223] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2024] [Revised: 05/23/2024] [Accepted: 06/17/2024] [Indexed: 07/20/2024] Open
Abstract
Extrusion printing based on biocompatible filaments offers a wide variety of targeted medical and dental applications in the area of personalized medicine, if combined with bioactive nanomaterials. However, this requires filament to be coated with bioactive nanomaterial. This study introduces a concept of a machine to coat filament with bioactive nanomaterials and its application. A machine was constructed with modules manufactured using additive manufacturing. A filament spool of polylactide (PLA) or glycol-modified polyethylene terephthalate (PETG) was transported through a copper tube, with the outer surface of the filament heated to the appropriate glass transition temperature to incorporate added nanomaterials such as nano-hydroxyapatite (nHA) or nano-fluorapatite(nFA). Coatings with nHA led to an increase in diameter of around 3 μm, while coatings with nFA increased the diameter by 4 μm. Printing of cubes with a standard extrusion printer platform using PLA or PETG filaments with added nHA or nFA has been successfully carried out. Scanning electron microscope (SEM) images of coated filaments and printed cubes showed an irregular distribution of nHA or nFA, which could be verified by energy dispersive X-ray analysis (EDX). Adding and adjusting bioactive nanomaterials to filament with a coating machine for filament proved to generate printable filaments. With the wide range of possible applications by different nanomaterials it is anticipated that extrusion printing can cover needs for personalized medicine and dentistry.
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Affiliation(s)
- Ulf Tilman Strähle
- Clinic of Operative Dentistry, Periodontology and Preventive Dentistry, Saarland University Hospital, 66421, Homburg, Saarland, Germany
- Synoptic Dentistry, Saarland University Hospital, 66421, Homburg, Saarland, Germany
| | - Norbert Pütz
- Clinic of Operative Dentistry, Periodontology and Preventive Dentistry, Saarland University Hospital, 66421, Homburg, Saarland, Germany
| | - Matthias Hannig
- Clinic of Operative Dentistry, Periodontology and Preventive Dentistry, Saarland University Hospital, 66421, Homburg, Saarland, Germany
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Cabral CSD, de Melo-Diogo D, Ferreira P, Moreira AF, Correia IJ. Reduced graphene oxide-reinforced tricalcium phosphate/gelatin/chitosan light-responsive scaffolds for application in bone regeneration. Int J Biol Macromol 2024; 259:129210. [PMID: 38184039 DOI: 10.1016/j.ijbiomac.2024.129210] [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: 10/17/2023] [Revised: 12/07/2023] [Accepted: 01/01/2024] [Indexed: 01/08/2024]
Abstract
Bone is a mineralized tissue with the intrinsic capacity for constant remodeling. Rapid prototyping techniques, using biomaterials that mimic the bone native matrix, have been used to develop osteoinductive and osteogenic personalized 3D structures, which can be further combined with drug delivery and phototherapy. Herein, a Fab@Home 3D Plotter printer was used to promote the layer-by-layer deposition of a composite mixture of gelatin, chitosan, tricalcium phosphate, and reduced graphene oxide (rGO). The phototherapeutic potential of the new NIR-responsive 3D_rGO scaffolds was assessed by comparing scaffolds with different rGO concentrations (1, 2, and 4 mg/mL). The data obtained show that the rGO incorporation confers to the scaffolds the capacity to interact with NIR light and induce a hyperthermy effect, with a maximum temperature increase of 16.7 °C after under NIR irradiation (10 min). Also, the increase in the rGO content improved the hydrophilicity and mechanical resistance of the scaffolds, particularly in the 3D_rGO4. Furthermore, the rGO could confer an NIR-triggered antibacterial effect to the 3D scaffolds, without compromising the osteoblasts' proliferation and viability. In general, the obtained data support the development of 3D_rGO for being applied as temporary scaffolds supporting the new bone tissue formation and avoiding the establishment of bacterial infections.
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Affiliation(s)
- Cátia S D Cabral
- CICS-UBI - Centro de Investigação em Ciências da Saúde, Universidade da Beira Interior, Covilhã, Portugal
| | - Duarte de Melo-Diogo
- CICS-UBI - Centro de Investigação em Ciências da Saúde, Universidade da Beira Interior, Covilhã, Portugal
| | - Paula Ferreira
- Instituto Politécnico de Coimbra, Instituto de Investigação Aplicada, Coimbra, Portugal
| | - André F Moreira
- CICS-UBI - Centro de Investigação em Ciências da Saúde, Universidade da Beira Interior, Covilhã, Portugal; CPIRN-UDI/IPG - Centro de Potencial e Inovação em Recursos Naturais, Unidade de Investigação para o Desenvolvimento do Interior, Instituto Politécnico da Guarda, Guarda, Portugal.
| | - Ilídio J Correia
- CICS-UBI - Centro de Investigação em Ciências da Saúde, Universidade da Beira Interior, Covilhã, Portugal; CIEPQPF - Departamento Engenharia Química, Universidade de Coimbra, Coimbra, Portugal.
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Elhmali HT, Stajcic I, Stajcic A, Pesic I, Jovanovic M, Petrovic M, Radojevic V. Influence of Novel SrTiO 3/MnO 2 Hybrid Nanoparticles on Poly(methyl methacrylate) Thermal and Mechanical Behavior. Polymers (Basel) 2024; 16:278. [PMID: 38276687 PMCID: PMC10820619 DOI: 10.3390/polym16020278] [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: 12/02/2023] [Revised: 12/30/2023] [Accepted: 12/30/2023] [Indexed: 01/27/2024] Open
Abstract
While dental poly methyl methacrylate(PMMA) possesses distinctive qualities such as ease of fabrication, cost-effectiveness, and favorable physical and mechanical properties, these attributes alone are inadequate to impart the necessary impact strength and hardness. Consequently, pure PMMA is less suitable for dental applications. This research focused on the incorporation of Strontium titanate (SrTiO3-STO) and hybrid filler STO/Manganese oxide (MnO2) to improve impact resistance and hardness. The potential of STO in reinforcing PMMA is poorly investigated, while hybrid filler STO/MnO2 has not been presented yet. Differential scanning calorimetry is conducted in order to investigate the agglomeration influence on the PMMA glass transition temperature (Tg), as well as the leaching of residual monomer and volatile additives that could pose a threat to human health. It has been determined that agglomeration with 1 wt% loading had no influence on Tg, while the first scan revealed differences in evaporation of small molecules, in favor of composite PMMA-STO/MnO2, which showed the trapping potential of volatiles. Investigations of mechanical properties have revealed the significant influence of hybrid STO/MnO2 filler on microhardness and total absorbed impact energy, which were increased by 89.9% and 145.4%, respectively. Results presented in this study revealed the reinforcing potential of hybrid nanoparticles that could find application in other polymers as well.
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Affiliation(s)
- Houda Taher Elhmali
- Faculty of Technology and Metallurgy, University of Belgrade, 11000 Belgrade, Serbia; (H.T.E.); (M.J.); (M.P.); (V.R.)
| | - Ivana Stajcic
- Department of Physical Chemistry, “Vinča” Institute of Nuclear Sciences—National Institute of the Republic of Serbia, University of Belgrade, Mike Petrovića Alasa 12-14, P.O. Box 522, 11001 Belgrade, Serbia
| | - Aleksandar Stajcic
- Center for Microelectronic Technologies, Institute of Chemistry, Technology and Metallurgy—National Institute of the Republic of Serbia, University of Belgrade, 11000 Belgrade, Serbia; (A.S.); (I.P.)
| | - Ivan Pesic
- Center for Microelectronic Technologies, Institute of Chemistry, Technology and Metallurgy—National Institute of the Republic of Serbia, University of Belgrade, 11000 Belgrade, Serbia; (A.S.); (I.P.)
| | - Marija Jovanovic
- Faculty of Technology and Metallurgy, University of Belgrade, 11000 Belgrade, Serbia; (H.T.E.); (M.J.); (M.P.); (V.R.)
| | - Milos Petrovic
- Faculty of Technology and Metallurgy, University of Belgrade, 11000 Belgrade, Serbia; (H.T.E.); (M.J.); (M.P.); (V.R.)
| | - Vesna Radojevic
- Faculty of Technology and Metallurgy, University of Belgrade, 11000 Belgrade, Serbia; (H.T.E.); (M.J.); (M.P.); (V.R.)
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Ngo ST, Lee WF, Wu YF, Salamanca E, Aung LM, Chao YQ, Tsao TC, Hseuh HW, Lee YH, Wang CC, Chang WJ. Fabrication of Solvent-Free PCL/β-TCP Composite Fiber for 3D Printing: Physiochemical and Biological Investigation. Polymers (Basel) 2023; 15:polym15061391. [PMID: 36987176 PMCID: PMC10053981 DOI: 10.3390/polym15061391] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2023] [Revised: 03/06/2023] [Accepted: 03/07/2023] [Indexed: 03/16/2023] Open
Abstract
Manufacturing three-dimensional (3D) objects with polymers/bioceramic composite materials has been investigated in recent years. In this study, we manufactured and evaluated solvent-free polycaprolactone (PCL) and beta-tricalcium phosphate (β-TCP) composite fiber as a scaffold material for 3D printing. To investigate the optimal ratio of feedstock material for 3D printing, the physical and biological characteristics of four different ratios of β-TCP compounds mixed with PCL were investigated. PCL/β-TCP ratios of 0 wt.%, 10 wt.%, 20 wt.%, and 30 wt.% were fabricated, with PCL melted at 65 °C and blended with β-TCP with no solvent added during the fabrication process. Electron microscopy revealed an even distribution of β-TCP in the PCL fibers, while Fourier transform infrared spectroscopy demonstrated that the biomaterial compounds remained intact after the heating and manufacturing process. In addition, adding 20% β-TCP into the PCL/β-TCP mixture significantly increased hardness and Young’s Modulus by 10% and 26.5%, respectively, suggesting that PCL-20 has better resistance to deformation under load. Cell viability, alkaline phosphatase (ALPase) activity, osteogenic gene expression, and mineralization were also observed to increase according to the amount of β-TCP added. Cell viability and ALPase activity were 20% higher with PCL-30, while upregulation for osteoblast-related gene expression was better with PCL-20. In conclusion, PCL-20 and PCL-30 fibers fabricated without solvent exhibited excellent mechanical properties, high biocompatibility, and high osteogenic ability, making them promising materials for 3D printing customized bone scaffolds promptly, sustainably, and cost-effectively.
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Affiliation(s)
- Sin Ting Ngo
- Ph.D. Program in Drug Discovery and Development Industry, College of Pharmacy, Taipei Medical University, Taipei 110, Taiwan
| | - Wei-Fang Lee
- School of Dental Technology, College of Oral Medicine, Taipei Medical University, Taipei 110, Taiwan
| | - Yi-Fan Wu
- School of Dentistry, College of Oral Medicine, Taipei Medical University, Taipei 110, Taiwan
| | - Eisner Salamanca
- School of Dentistry, College of Oral Medicine, Taipei Medical University, Taipei 110, Taiwan
| | - Lwin Moe Aung
- School of Dentistry, College of Oral Medicine, Taipei Medical University, Taipei 110, Taiwan
| | - Yan-Qiao Chao
- School of Dentistry, College of Oral Medicine, Taipei Medical University, Taipei 110, Taiwan
| | - Ting-Chia Tsao
- School of Dentistry, College of Oral Medicine, Taipei Medical University, Taipei 110, Taiwan
| | - Hao-Wen Hseuh
- School of Dentistry, College of Oral Medicine, Taipei Medical University, Taipei 110, Taiwan
| | - Yi-Huan Lee
- Department of Molecular Science and Engineering, National Taipei University of Technology, Taipei 106, Taiwan
- Correspondence: (Y.-H.L.); (C.-C.W.); (W.-J.C.)
| | - Ching-Chiung Wang
- Ph.D. Program in Drug Discovery and Development Industry, College of Pharmacy, Taipei Medical University, Taipei 110, Taiwan
- School of Pharmacy, College of Pharmacy, Taipei Medical University, Taipei 110, Taiwan
- Traditional Herbal Medicine Research Center, Taipei Medical University Hospital, Taipei 110, Taiwan
- Correspondence: (Y.-H.L.); (C.-C.W.); (W.-J.C.)
| | - Wei-Jen Chang
- School of Dentistry, College of Oral Medicine, Taipei Medical University, Taipei 110, Taiwan
- Dental Department, Taipei Medical University, Shuang Ho Hospital, New Taipei 235, Taiwan
- Correspondence: (Y.-H.L.); (C.-C.W.); (W.-J.C.)
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6
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Arakkal A, Sirajunnisa P, Sailaja GS. Natural rubber latex films with effective growth inhibition against S. aureus via surface conjugated gentamicin. J BIOACT COMPAT POL 2023. [DOI: 10.1177/08839115231153823] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/08/2023]
Abstract
Hospital-associated infections and related complications are of extreme concern in the healthcare sector since biofilms generated over material surfaces not only create turbulence in the healthcare practices followed but also ruin the device performance, and increased medication, leading to significant chances of drug resistance. Natural rubber latex (NRL) being the first choice for the manufacture of several conventional biomedical devices, it is essential to ensure the surfaces of the same are inherently inactive against most microorganisms. This study presents NRL film surface conjugated with a well-known antibiotic, gentamicin through an amide linkage to generate antibacterial activity to the surface with a significant growth inhibition rate, especially against Staphylococcus aureus. The NRL films were surface-oxidized under controlled acidic conditions to generate carboxyl groups exploring the unsaturation of the base monomer unit. The carboxyl group reacts with the amine groups of gentamicin facilitating its surface conjugation. The surface anchoring was authenticated by FTIR-ATR complimented further by contact angle measurement as a function of hydrophilicity and elemental analysis by EDX spectroscopy. The antibacterial efficacy of modified NRL films was evaluated using antibacterial drop test and the results indicated a substantial growth inhibition rate (>60%) against Pseudomonas aeruginosa and Staphylococcus aureus. The study could be further optimized and proposed as a viable route for the conjugation of active molecules over inert polymer molecules.
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Affiliation(s)
- Aswin Arakkal
- Department of Polymer Science & Rubber Technology, Cochin University of Science and Technology, Kochi, Kerala, India
| | - Paramban Sirajunnisa
- Department of Polymer Science & Rubber Technology, Cochin University of Science and Technology, Kochi, Kerala, India
| | - Gopalakrishnanchettiar Sivakamiammal Sailaja
- Department of Polymer Science & Rubber Technology, Cochin University of Science and Technology, Kochi, Kerala, India
- Inter-University Centre for Nanomaterials and Devices, Cochin University of Science and Technology, Kochi, Kerala, India
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Petre AE, Pantea M, Drafta S, Imre M, Țâncu AMC, Liciu EM, Didilescu AC, Pițuru SM. Modular Digital and 3D-Printed Dental Models with Applicability in Dental Education. MEDICINA (KAUNAS, LITHUANIA) 2023; 59:medicina59010116. [PMID: 36676740 PMCID: PMC9861456 DOI: 10.3390/medicina59010116] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/17/2022] [Revised: 12/20/2022] [Accepted: 12/30/2022] [Indexed: 01/09/2023]
Abstract
Background and Objectives: The ever more complex modern dental education requires permanent adaptation to expanding medical knowledge and new advancements in digital technologies as well as intensification of interdisciplinary collaboration. Our study presents a newly developed computerized method allowing virtual case simulation on modular digital dental models and 3D-printing of the obtained digital models; additionally, undergraduate dental students' opinion on the advanced method is investigated in this paper. Materials and Methods: Based on the digitalization of didactic dental models, the proposed method generates modular digital dental models that can be easily converted into different types of partial edentulism scenarios, thus allowing the development of a digital library. Three-dimensionally printed simulated dental models can subsequently be manufactured based on the previously obtained digital models. The opinion of a group of undergraduate dental students (n = 205) on the proposed method was assessed via a questionnaire, administered as a Google form, sent via email. Results: The modular digital models allow students to perform repeated virtual simulations of any possible partial edentulism cases, to project 3D virtual treatment plans and to observe the subtle differences between diverse teeth preparations; the resulting 3D-printed models could be used in students' practical training. The proposed method received positive feedback from the undergraduate students. Conclusions: The advanced method is adequate for dental students' training, enabling the gradual design of modular digital dental models with partial edentulism, from simple to complex cases, and the hands-on training on corresponding 3D-printed dental models.
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Affiliation(s)
- Alexandru Eugen Petre
- Department of Prosthodontics, Faculty of Dentistry, “Carol Davila” University of Medicine and Pharmacy, 17–23 Calea Plevnei, 010221 Bucharest, Romania
| | - Mihaela Pantea
- Department of Prosthodontics, Faculty of Dentistry, “Carol Davila” University of Medicine and Pharmacy, 17–23 Calea Plevnei, 010221 Bucharest, Romania
- Correspondence: (M.P.); (S.D.); Tel.: +40-722-387-969 (M.P.); +40-722-657-800 (S.D.)
| | - Sergiu Drafta
- Department of Prosthodontics, Faculty of Dentistry, “Carol Davila” University of Medicine and Pharmacy, 17–23 Calea Plevnei, 010221 Bucharest, Romania
- Correspondence: (M.P.); (S.D.); Tel.: +40-722-387-969 (M.P.); +40-722-657-800 (S.D.)
| | - Marina Imre
- Department of Prosthodontics, Faculty of Dentistry, “Carol Davila” University of Medicine and Pharmacy, 17–23 Calea Plevnei, 010221 Bucharest, Romania
| | - Ana Maria Cristina Țâncu
- Department of Prosthodontics, Faculty of Dentistry, “Carol Davila” University of Medicine and Pharmacy, 17–23 Calea Plevnei, 010221 Bucharest, Romania
| | - Eduard M. Liciu
- Coordinator of the 3D Printing Department, Center for Innovation and e-Health (CieH), “Carol Davila” University of Medicine and Pharmacy, 20 Pitar Mos Str., 010454 Bucharest, Romania
| | - Andreea Cristiana Didilescu
- Department of Embryology, Faculty of Dentistry, “Carol Davila” University of Medicine and Pharmacy, 8 Eroii Sanitari Boulevard, 050474 Bucharest, Romania
| | - Silviu Mirel Pițuru
- Department of Professional Organization and Medical Legislation-Malpractice, Faculty of Dentistry, “Carol Davila” University of Medicine and Pharmacy, 020021 Bucharest, Romania
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Dadhich P, Kumar P, Roy A, Bitar KN. Advances in 3D Printing Technology for Tissue Engineering. Regen Med 2023. [DOI: 10.1007/978-981-19-6008-6_9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023] Open
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9
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Layered scaffolds in periodontal regeneration. J Oral Biol Craniofac Res 2022; 12:782-797. [PMID: 36159068 PMCID: PMC9489757 DOI: 10.1016/j.jobcr.2022.09.001] [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: 06/16/2022] [Accepted: 09/02/2022] [Indexed: 11/21/2022] Open
Abstract
Periodontitis is a common inflammatory disease in dentistry that may lead to tooth loss and aesthetic problems. Periodontal tissue has a sophisticated architecture including four sections of alveolar bone, cementum, gingiva, and periodontal ligament fiber; all these four can be damaged during periodontitis. Thus, for whole periodontal regeneration, it is important to form both hard and soft tissue structures simultaneously on the tooth root surface without forming junctional epithelium and ankylosis. This condition makes the treatment of the periodontium a challenging process. Various regenerative methods including Guided Bone/Tissue Regeneration (GBR/GTR) using various membranes have been developed. Although using such GBR/GTR membranes was successful for partial periodontal treatment, they cannot be used for the regeneration of complete periodontium. For this purpose, multilayered scaffolds are now being developed. Such scaffolds may include various biomaterials, stem cells, and growth factors in a multiphasic configuration in which each layer is designed to regenerate specific section of the periodontium. This article provides a comprehensive review of the multilayered scaffolds for periodontal regeneration based on natural or synthetic polymers, and their combinations with other biomaterials and bioactive molecules. After highlighting the challenges related to multilayered scaffolds preparation, features of suitable scaffolds for periodontal regeneration are discussed.
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Multiple growth factors accommodated degradable submicron calcium sulfate hemihydrate/porous hydroxyapatite for dentin-pulp regeneration. BIOMATERIALS ADVANCES 2022; 140:213045. [PMID: 35939956 DOI: 10.1016/j.bioadv.2022.213045] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/25/2022] [Revised: 07/07/2022] [Accepted: 07/20/2022] [Indexed: 12/31/2022]
Abstract
Vital pulp therapy (VPT) has gained significant consideration by utilizing the natural healing capacity of the inflamed pulp in healing process. However, the protective pulp capping materials that facilitate this healing process are still under investigation for the successful promotion of dentin-pulp regeneration. Herein, we developed a bioactive and biodegradable pulp capping material (denoted as sCSHA-GFs) by synthesizing inorganic submicron calcium sulfate hemihydrate (sCS)/porous hydroxyapatite (HA) loaded with growth factors (GFs) such as transforming growth factor-beta 1 (TGF-β1), fibroblast growth factor-2 (FGF-2) and vascular endothelial growth factor (VEGF). Physiochemical characteristics of submicron CSHA-GFs (sCSHA-GFs) cement were determined. Human dental pulp stem cells (hDPSCs) were used for analyzing their biocompatibility and bioactivity for dentin mineralization. To evaluate the efficacy of sCSHA-GFs, we compared it with a commercial material, mineral trioxide aggregate (MTA), the reference standard used clinically on pulp capping. Our results showed that sCSHA-GFs cement presented good biodegradability with dissolution properties for sustained release of calcium (Ca2+) ions and GFs, and facilitated attachment, proliferation, differentiation and migration of hDPSCs. In addition, sCSHA-GFs cement was found to be more effective than MTA at prolonged incubation time in inducing the mRNA expression levels of odontoblastic differentiation markers, dentin sialophosphoprotein (DSPP) and dentin matrix protein (DMP-1), leading to increased mineralization (with calcium deposits) along with increased alkaline phosphatase (ALP) expressions, evident from Alizarin Red S and ALP staining assays. Our findings suggest that sCSHA-GFs cement may act as a suitable material in VPT for dentin-pulp regeneration.
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Chen X, Han S, Wu W, Wu Z, Yuan Y, Wu J, Liu C. Harnessing 4D Printing Bioscaffolds for Advanced Orthopedics. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2022; 18:e2106824. [PMID: 35060321 DOI: 10.1002/smll.202106824] [Citation(s) in RCA: 30] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/07/2021] [Revised: 12/15/2021] [Indexed: 05/13/2023]
Abstract
The development of programmable functional biomaterials makes 4D printing add a new dimension, time (t), based on 3D structures (x, y, z), therefore, 4D printed constructs could transform their morphology or function over time in response to environmental stimuli. Nowadays, highly efficient bone defect repair remains challenging in clinics. Combining programmable biomaterials, living cells, and bioactive factors, 4D bioprinting provides greater potential for constructing dynamic, personalized, and precise bone tissue engineering scaffolds by complex structure formation and functional maturation. Therefore, 4D bioprinting has been regarded as the next generation of bone repair technology. This review focuses on 4D printing and its advantages in orthopedics. The applications of different smart biomaterials and 4D printing strategies are briefly introduced. Furthermore, one summarizes the recent advancements of 4D printing in bone tissue engineering, uncovering the addressed and unaddressed medical requirements. In addition, current challenges and future perspectives are further discussed, which will offer more inspiration about the clinical transformation of this emerging 4D bioprinting technology in bone regeneration.
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Affiliation(s)
- Xi Chen
- Key Laboratory for Ultrafine Materials of Ministry of Education, Frontiers Science Center for Materiobiology and Dynamic Chemistry, Engineering Research Center for Biomaterials of Ministry of Education, East China University of Science and Technology, Shanghai, 200237, China
| | - Shuyan Han
- Key Laboratory of Sensing Technology and Biomedical Instrument of Guangdong Province, School of Biomedical Engineering, Sun Yat-Sen University, Guangzhou, 510006, China
| | - Weihui Wu
- Key Laboratory for Ultrafine Materials of Ministry of Education, Frontiers Science Center for Materiobiology and Dynamic Chemistry, Engineering Research Center for Biomaterials of Ministry of Education, East China University of Science and Technology, Shanghai, 200237, China
| | - Zihan Wu
- Key Laboratory for Ultrafine Materials of Ministry of Education, Frontiers Science Center for Materiobiology and Dynamic Chemistry, Engineering Research Center for Biomaterials of Ministry of Education, East China University of Science and Technology, Shanghai, 200237, China
| | - Yuan Yuan
- Key Laboratory for Ultrafine Materials of Ministry of Education, Frontiers Science Center for Materiobiology and Dynamic Chemistry, Engineering Research Center for Biomaterials of Ministry of Education, East China University of Science and Technology, Shanghai, 200237, China
| | - Jun Wu
- Key Laboratory of Sensing Technology and Biomedical Instrument of Guangdong Province, School of Biomedical Engineering, Sun Yat-Sen University, Guangzhou, 510006, China
| | - Changsheng Liu
- Key Laboratory for Ultrafine Materials of Ministry of Education, Frontiers Science Center for Materiobiology and Dynamic Chemistry, Engineering Research Center for Biomaterials of Ministry of Education, East China University of Science and Technology, Shanghai, 200237, China
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Significance of 4D printing for dentistry: Materials, process, and potentials. J Oral Biol Craniofac Res 2022; 12:388-395. [DOI: 10.1016/j.jobcr.2022.05.002] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2021] [Revised: 04/30/2022] [Accepted: 05/08/2022] [Indexed: 01/10/2023] Open
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Editorial for the Special Issue on Bioceramic Composites. JOURNAL OF COMPOSITES SCIENCE 2022. [DOI: 10.3390/jcs6030065] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
This Special Issue on bioceramic composites and its published papers, addressing a number of current topics from industry and academia, are intended to be a reference for students and scholars in the field of biomaterials science, giving an insight into challenges and research topics in the field bioceramic composites [...]
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14
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A Versatile Strategy for the Fabrication of Poly(ethyl methacrylate) Composites. JOURNAL OF COMPOSITES SCIENCE 2022. [DOI: 10.3390/jcs6020040] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Poly(ethyl methacrylate) (PEMA) is dissolved in ethanol, known to be a non-solvent for PEMA, due to the solubilizing ability of an added bile acid biosurfactant, lithocholic acid (LA). The ability to avoid traditional toxic and carcinogenic solvents is important for the fabrication of composites for biomedical applications. The formation of concentrated solutions of high molecular weight PEMA is a key factor for the film deposition using the dip coating method. PEMA films provide corrosion protection for stainless steel. Composite films are prepared, containing bioceramics, such as hydroxyapatite and silica, for biomedical applications. LA facilitates dispersion of hydroxyapatite and silica in suspensions for film deposition. Ibuprofen and tetracycline are used as model drugs for the fabrication of composite films. PEMA-nanocellulose films are successfully prepared using the dip coating method. The microstructure and composition of the films are investigated. The conceptually new approach developed in this investigation represents a versatile strategy for the fabrication of composites for biomedical and other applications, using natural biosurfactants as solubilizing and dispersing agents.
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Zare Mirakabad H, Khorramizadeh MR. Introduction to the potential of Ferula ovina in dental implant research due to estrogenic bioactive compounds and adhesive properties. PLoS One 2022; 17:e0262045. [PMID: 35041680 PMCID: PMC8765653 DOI: 10.1371/journal.pone.0262045] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2021] [Accepted: 12/09/2021] [Indexed: 11/25/2022] Open
Abstract
Recent developments in dental implant have heightened the urgent need to natural tissue adhesives estrogenic materials with ability of promoting the proliferation and osteoblastic differentiation in human dental pulp-derived stem cells, to provide better integration of tissue for dentistry. Up to now, far little attention has been paid to adhesives extract of the root of Ferula sp. which contains biomaterial compounds with estrogenic activities. Prior to undertaking the investigation, analysis of the extract of the root of F. ovina revealed a novel terpenoid, and we identified it as Fenoferin. So far, this paper has focused on Fenoferin compared to Ferutinin and root extract to determine if Fenoferin caused changes in craniofacial cartilage, bone (ceratohyal) and tooth mineralization. Following the purpose of study, we used zebrafish as a well-developed model system for studying bone development, so the developing zebrafish larvae were exposed to various concentration of compounds at 2dpf, and the histological analyses were performed at 6dpf. The result of the current study highlights the importance of F. ovina in studies related to dental regenerative medicine.
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Affiliation(s)
- Hoda Zare Mirakabad
- Department of Anatomy, Physiology and Pharmacology, University of Saskatchewan, Saskatoon, Canada
| | - M. Reza Khorramizadeh
- Biosensor Research Center, Endocrinology and Metabolism Molecular-Cellular Sciences Institute, Tehran University of Medical Sciences (TUMS), Tehran, Iran
- Zebrafish Core Facility, Endocrinology and Metabolism Research Institute (EMRI), TUMS, Tehran, Iran
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16
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Duncan WJ, Coates DE. Meeting the challenges and clinical requirements for dental regeneration; the New Zealand experience. Bone 2022; 154:116181. [PMID: 34509689 DOI: 10.1016/j.bone.2021.116181] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/08/2021] [Revised: 09/05/2021] [Accepted: 09/06/2021] [Indexed: 11/02/2022]
Abstract
Disease and trauma leading to tooth loss and destruction of supporting bone is a significant oral handicap, which may be addressed through surgical therapies that aim to regenerate the lost tissue. Whilst complete regeneration of teeth is still aspirational, regeneration of supporting structures (dental pulp, cementum, periodontal ligament, bone) is becoming commonplace, both for teeth and for titanium dental implants that are used to replace teeth. Most grafting materials are essentially passive, however the next generation of oral regenerative devices will combine non-antibiotic antimicrobials and/or osteogenic or inductive factors and/or appropriate multipotential stem cells. The review gives an overview of the approaches taken, including fabrication of novel scaffolds, incorporation of growth factors and cell-based therapies, and discusses the preclinical animal models we employ in the development pathway.
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Affiliation(s)
- Warwick J Duncan
- Sir John Walsh Research Institute, Faculty of Dentistry, University of Otago, Dunedin, New Zealand.
| | - Dawn E Coates
- Sir John Walsh Research Institute, Faculty of Dentistry, University of Otago, Dunedin, New Zealand.
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Sharma D, Mathur VP, Satapathy BK. Biodegradable and Biocompatible 3D Constructs for Dental Applications: Manufacturing Options and Perspectives. Ann Biomed Eng 2021; 49:2030-2056. [PMID: 34318403 DOI: 10.1007/s10439-021-02839-3] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Designing 3D constructs with appropriate materials and structural frameworks for complex dental restorative/regenerative procedures has always remained a multi-criteria optimization challenge. In this regard, 3D printing has long been known to be a potent tool for various tissue regenerative applications, however, the preparation of biocompatible, biodegradable, and stable inks is yet to be explored and revolutionized for overall performance improvisation. The review reports the currently employed manufacturing processes for the development of engineered self-supporting, easily processable, and cost-effective 3D constructs with target-specific tuneable mechanics, bioactivity, and degradability aspects in the oral cavity for their potential use in numerous dental applications ranging from soft pulp tissues to hard alveolar bone tissues. A hybrid synergistic approach, comprising of development of multi-layered, structurally stable, composite building blocks with desired physicomechanical performance and bioactivity presents an optimal solution to circumvent the major limitations and develop new-age advanced dental restorations and implants. Further, the review summarizes some manufacturing perspectives which may inspire the readers to design appropriate structures for clinical trials so as to pave the way for their routine applications in dentistry in the near future.
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Affiliation(s)
- Deepika Sharma
- Department of Materials Science and Engineering, Indian Institute of Technology Delhi, Hauz Khas, New Delhi, 110016, India
| | - Vijay Prakash Mathur
- Division of Pedodontics and Preventive Dentistry, Centre for Dental Education and Research, All India Institute of Medical Sciences, New Delhi, 110029, India
| | - Bhabani K Satapathy
- Department of Materials Science and Engineering, Indian Institute of Technology Delhi, Hauz Khas, New Delhi, 110016, India.
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Zaszczyńska A, Moczulska-Heljak M, Gradys A, Sajkiewicz P. Advances in 3D Printing for Tissue Engineering. MATERIALS (BASEL, SWITZERLAND) 2021; 14:3149. [PMID: 34201163 PMCID: PMC8226963 DOI: 10.3390/ma14123149] [Citation(s) in RCA: 41] [Impact Index Per Article: 13.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/15/2021] [Revised: 06/01/2021] [Accepted: 06/04/2021] [Indexed: 12/18/2022]
Abstract
Tissue engineering (TE) scaffolds have enormous significance for the possibility of regeneration of complex tissue structures or even whole organs. Three-dimensional (3D) printing techniques allow fabricating TE scaffolds, having an extremely complex structure, in a repeatable and precise manner. Moreover, they enable the easy application of computer-assisted methods to TE scaffold design. The latest additive manufacturing techniques open up opportunities not otherwise available. This study aimed to summarize the state-of-art field of 3D printing techniques in applications for tissue engineering with a focus on the latest advancements. The following topics are discussed: systematics of the available 3D printing techniques applied for TE scaffold fabrication; overview of 3D printable biomaterials and advancements in 3D-printing-assisted tissue engineering.
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Affiliation(s)
- Angelika Zaszczyńska
- Institute of Fundamental Technological Research, Polish Academy of Sciences, Pawinskiego 5b St., 02-106 Warsaw, Poland
| | - Maryla Moczulska-Heljak
- Institute of Fundamental Technological Research, Polish Academy of Sciences, Pawinskiego 5b St., 02-106 Warsaw, Poland
| | - Arkadiusz Gradys
- Institute of Fundamental Technological Research, Polish Academy of Sciences, Pawinskiego 5b St., 02-106 Warsaw, Poland
| | - Paweł Sajkiewicz
- Institute of Fundamental Technological Research, Polish Academy of Sciences, Pawinskiego 5b St., 02-106 Warsaw, Poland
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