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Huang X, Lou Y, Duan Y, Liu H, Tian J, Shen Y, Wei X. Biomaterial scaffolds in maxillofacial bone tissue engineering: A review of recent advances. Bioact Mater 2024; 33:129-156. [PMID: 38024227 PMCID: PMC10665588 DOI: 10.1016/j.bioactmat.2023.10.031] [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: 08/28/2023] [Revised: 10/30/2023] [Accepted: 10/30/2023] [Indexed: 12/01/2023] Open
Abstract
Maxillofacial bone defects caused by congenital malformations, trauma, tumors, and inflammation can severely affect functions and aesthetics of maxillofacial region. Despite certain successful clinical applications of biomaterial scaffolds, ideal bone regeneration remains a challenge in maxillofacial region due to its irregular shape, complex structure, and unique biological functions. Scaffolds that address multiple needs of maxillofacial bone regeneration are under development to optimize bone regeneration capacity, costs, operational convenience. etc. In this review, we first highlight the special considerations of bone regeneration in maxillofacial region and provide an overview of the biomaterial scaffolds for maxillofacial bone regeneration under clinical examination and their efficacy, which provide basis and directions for future scaffold design. Latest advances of these scaffolds are then discussed, as well as future perspectives and challenges. Deepening our understanding of these scaffolds will help foster better innovations to improve the outcome of maxillofacial bone tissue engineering.
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Affiliation(s)
- Xiangya Huang
- Hospital of Stomatology, Guanghua School of Stomatology, Sun Yat-Sen University, Guangzhou, China
- Guangdong Provincial Key Laboratory of Stomatology, Guangzhou, China
| | - Yaxin Lou
- Hospital of Stomatology, Guanghua School of Stomatology, Sun Yat-Sen University, Guangzhou, China
- Guangdong Provincial Key Laboratory of Stomatology, Guangzhou, China
| | - Yihong Duan
- Hospital of Stomatology, Guanghua School of Stomatology, Sun Yat-Sen University, Guangzhou, China
- Guangdong Provincial Key Laboratory of Stomatology, Guangzhou, China
| | - He Liu
- Division of Endodontics, Department of Oral Biological and Medical Sciences, The University of British Columbia, Vancouver, British Columbia, Canada
| | - Jun Tian
- Hospital of Stomatology, Guanghua School of Stomatology, Sun Yat-Sen University, Guangzhou, China
- Guangdong Provincial Key Laboratory of Stomatology, Guangzhou, China
| | - Ya Shen
- Division of Endodontics, Department of Oral Biological and Medical Sciences, The University of British Columbia, Vancouver, British Columbia, Canada
| | - Xi Wei
- Hospital of Stomatology, Guanghua School of Stomatology, Sun Yat-Sen University, Guangzhou, China
- Guangdong Provincial Key Laboratory of Stomatology, Guangzhou, China
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2
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Tan Y, Sun H, Lan Y, Khan HM, Zhang H, Zhang L, Zhang F, Cui Y, Zhang L, Huang D, Chen X, Zhou C, Sun J, Zhou X. Study on 3D printed MXene-berberine-integrated scaffold for photo-activated antibacterial activity and bone regeneration. J Mater Chem B 2024; 12:2158-2179. [PMID: 38323437 DOI: 10.1039/d3tb02306k] [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: 02/08/2024]
Abstract
The repair of mandibular defects is a challenging clinical problem, and associated infections often hinder the treatment, leading to failure in bone regeneration. Herein, a multifunctional platform is designed against the shortages of existing therapies for infected bone deficiency. 2D Ti3C2 MXene and berberine (BBR) are effectively loaded into 3D printing biphasic calcium phosphate (BCP) scaffolds. The prepared composite scaffolds take the feature of the excellent photothermal capacity of Ti3C2 as an antibacterial, mediating NIR-responsive BBR release under laser stimuli. Meanwhile, the sustained release of BBR enhances its antibacterial effect and further accelerates the bone healing process. Importantly, the integration of Ti3C2 improves the mechanical properties of the 3D scaffolds, which are beneficial for new bone formation. Their remarkable biomedical performances in vitro and in vivo present the outstanding antibacterial and osteogenic properties of the Ti3C2-BBR functionalized BCP scaffolds. The synergistic therapy makes it highly promising for repairing infected bone defects and provides insights into a wide range of applications of 2D nanosheets in biomedicine.
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Affiliation(s)
- Yi Tan
- State Key Laboratory of Oral Disease & National Center for Stomatology & National Clinical Center for Oral Diseases & Department of Cariology and Endodontics, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, Sichuan, China.
| | - Huan Sun
- National Engineering Research Centre for Biomaterials, College of Biomedical Engineering, Sichuan University, Chengdu 610041, China
| | - Yuanchen Lan
- State Key Laboratory of Oral Disease & National Center for Stomatology & National Clinical Center for Oral Diseases & Department of Orthodontics, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, Sichuan, China
| | - Haider Mohammed Khan
- Department of Orthopedics, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Hui Zhang
- State Key Laboratory of Oral Disease & National Center for Stomatology & National Clinical Center for Oral Diseases & Department of Orthodontics, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, Sichuan, China
| | - Linli Zhang
- State Key Laboratory of Oral Disease & National Center for Stomatology & National Clinical Center for Oral Diseases & Department of Orthodontics, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, Sichuan, China
| | - Fengying Zhang
- West China Hospital/West China School of Nursing, Sichuan University, Chengdu 610041, China
| | - Yujia Cui
- State Key Laboratory of Oral Disease & National Center for Stomatology & National Clinical Center for Oral Diseases & Department of Paediatric Dentistry, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, Sichuan, China
| | - Lan Zhang
- State Key Laboratory of Oral Disease & National Center for Stomatology & National Clinical Center for Oral Diseases & Department of Cariology and Endodontics, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, Sichuan, China.
| | - Dingming Huang
- State Key Laboratory of Oral Disease & National Center for Stomatology & National Clinical Center for Oral Diseases & Department of Cariology and Endodontics, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, Sichuan, China.
| | - Xinmei Chen
- State Key Laboratory of Oral Disease & National Center for Stomatology & National Clinical Center for Oral Diseases & Department of Cariology and Endodontics, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, Sichuan, China.
| | - Changchun Zhou
- National Engineering Research Centre for Biomaterials, College of Biomedical Engineering, Sichuan University, Chengdu 610041, China
| | - Jianxun Sun
- State Key Laboratory of Oral Disease & National Center for Stomatology & National Clinical Center for Oral Diseases & Department of Cariology and Endodontics, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, Sichuan, China.
| | - Xuedong Zhou
- State Key Laboratory of Oral Disease & National Center for Stomatology & National Clinical Center for Oral Diseases & Department of Cariology and Endodontics, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, Sichuan, China.
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3
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Davidopoulou S, Karakostas P, Batas L, Barmpalexis P, Assimopoulou A, Angelopoulos C, Tsalikis L. Multidimensional 3D-Printed Scaffolds and Regeneration of Intrabony Periodontal Defects: A Systematic Review. J Funct Biomater 2024; 15:44. [PMID: 38391897 PMCID: PMC10889986 DOI: 10.3390/jfb15020044] [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: 01/23/2024] [Revised: 02/11/2024] [Accepted: 02/14/2024] [Indexed: 02/24/2024] Open
Abstract
BACKGROUND The utilization of regenerative techniques in periodontology involves tailoring tissue engineering principles to suit the oral cavity's unique environment. Advancements in computer-assisted technology, specifically utilizing cone beam computed tomography (CBCT), enabled the fabrication of 3D-printed scaffolds. The current review aims to explore whether 3D-printed scaffolds are effective in promoting osteogenesis in patients with periodontal defects. METHODS A thorough exploration was undertaken across seven electronic databases (PubMed, Scopus, ScienceDirect, Google Scholar, Cochrane, Web of Science, Ovid) to detect pertinent research in accordance with specified eligibility criteria, aligning with the PRISMA guidelines. Two independent reviewers undertook the screening and selection of manuscripts, executed data extraction, and evaluated the bias risk using the Newcastle-Ottawa Scale for non-randomized clinical trials and SYRCLE's risk of bias tool for animal studies. RESULTS Initially, 799 articles were identified, refined by removing duplicates. After evaluating 471 articles based on title and abstract, 18 studies remained for full-text assessment. Eventually, merely two manuscripts fulfilled all the eligibility criteria concerning human trials. Both studies were prospective non-randomized clinical trials. Moreover, 11 animal studies were also included. CONCLUSIONS The use of multidimensional, 3D-printed, customized scaffolds appears to stimulate periodontal regeneration. While the reported results are encouraging, additional studies are required to identify the ideal characteristics of the 3D scaffold to be used in the regeneration of periodontal tissue.
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Affiliation(s)
- Sotiria Davidopoulou
- Department of Operative Dentistry, Dental School, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece
| | - Panagiotis Karakostas
- Department of Preventive Dentistry, Periodontology and Implant Biology, Dental School, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece
| | - Leonidas Batas
- Department of Preventive Dentistry, Periodontology and Implant Biology, Dental School, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece
| | - Panagiotis Barmpalexis
- Department of Pharmaceutical Technology, School of Pharmacy, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece
| | - Andreana Assimopoulou
- Organic Chemistry Lab, School of Chemical Engineering, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece
| | - Christos Angelopoulos
- Department of Oral Diagnosis & Radiology, School of Dentistry, National and Kapodistrian University of Athens, 10679 Athina, Greece
| | - Lazaros Tsalikis
- Department of Preventive Dentistry, Periodontology and Implant Biology, Dental School, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece
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Zhou J, See CW, Sreenivasamurthy S, Zhu D. Customized Additive Manufacturing in Bone Scaffolds-The Gateway to Precise Bone Defect Treatment. RESEARCH (WASHINGTON, D.C.) 2023; 6:0239. [PMID: 37818034 PMCID: PMC10561823 DOI: 10.34133/research.0239] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/07/2023] [Accepted: 09/07/2023] [Indexed: 10/12/2023]
Abstract
In the advancing landscape of technology and novel material development, additive manufacturing (AM) is steadily making strides within the biomedical sector. Moving away from traditional, one-size-fits-all implant solutions, the advent of AM technology allows for patient-specific scaffolds that could improve integration and enhance wound healing. These scaffolds, meticulously designed with a myriad of geometries, mechanical properties, and biological responses, are made possible through the vast selection of materials and fabrication methods at our disposal. Recognizing the importance of precision in the treatment of bone defects, which display variability from macroscopic to microscopic scales in each case, a tailored treatment strategy is required. A patient-specific AM bone scaffold perfectly addresses this necessity. This review elucidates the pivotal role that customized AM bone scaffolds play in bone defect treatment, while offering comprehensive guidelines for their customization. This includes aspects such as bone defect imaging, material selection, topography design, and fabrication methodology. Additionally, we propose a cooperative model involving the patient, clinician, and engineer, thereby underscoring the interdisciplinary approach necessary for the effective design and clinical application of these customized AM bone scaffolds. This collaboration promises to usher in a new era of bioactive medical materials, responsive to individualized needs and capable of pushing boundaries in personalized medicine beyond those set by traditional medical materials.
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Affiliation(s)
- Juncen Zhou
- Department of Biomedical Engineering,
Stony Brook University, Stony Brook, NY, USA
| | - Carmine Wang See
- Department of Biomedical Engineering,
Stony Brook University, Stony Brook, NY, USA
| | - Sai Sreenivasamurthy
- Department of Biomedical Engineering,
Stony Brook University, Stony Brook, NY, USA
| | - Donghui Zhu
- Department of Biomedical Engineering,
Stony Brook University, Stony Brook, NY, USA
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5
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Alonso-Fernández I, Haugen HJ, López-Peña M, González-Cantalapiedra A, Muñoz F. Use of 3D-printed polylactic acid/bioceramic composite scaffolds for bone tissue engineering in preclinical in vivo studies: A systematic review. Acta Biomater 2023; 168:1-21. [PMID: 37454707 DOI: 10.1016/j.actbio.2023.07.013] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2023] [Revised: 07/11/2023] [Accepted: 07/12/2023] [Indexed: 07/18/2023]
Abstract
3D-printed composite scaffolds have emerged as an alternative to deal with existing limitations when facing bone reconstruction. The aim of the study was to systematically review the feasibility of using PLA/bioceramic composite scaffolds manufactured by 3D-printing technologies as bone grafting materials in preclinical in vivo studies. Electronic databases were searched using specific search terms, and thirteen manuscripts were selected after screening. The synthesis of the scaffolds was carried out using mainly extrusion-based techniques. Likewise, hydroxyapatite was the most used bioceramic for synthesizing composites with a PLA matrix. Among the selected studies, seven were conducted in rats and six in rabbits, but the high variability that exists regarding the experimental process made it difficult to compare them. Regarding the results, PLA/Bioceramic composite scaffolds have shown to be biocompatible and mechanically resistant. Preclinical studies elucidated the ability of the scaffolds to be used as bone grafts, allowing bone growing without adverse reactions. In conclusion, PLA/Bioceramics scaffolds have been demonstrated to be a promising alternative for treating bone defects. Nevertheless, more care should be taken when designing and performing in vivo trials, since the lack of standardization of the processes, which prevents the comparison of the results and reduces the quality of the information. STATEMENT OF SIGNIFICANCE: 3D-printed polylactic acid/bioceramic composite scaffolds have emerged as an alternative to deal with existing limitations when facing bone reconstruction. Since preclinical in vivo studies with animal models represent a mandatory step for clinical translation, the present manuscript analyzed and discussed not only those aspects related to the selection of the bioceramic material, the synthesis of the implants and their characterization. But provides a new approach to understand how the design and perform of clinical trials, as well as the selection of the analysis methods, may affect the obtained results, by covering authors' knowledgebase from veterinary medicine to biomaterial science. Thus, this study aims to systematically review the feasibility of using polylactic acid/bioceramic scaffolds as grafting materials in preclinical trials.
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Affiliation(s)
- Iván Alonso-Fernández
- Anatomy, Animal Production and Veterinary Clinical Sciences Department, Veterinary Faculty, Universidade de Santiago de Compostela, Campus Universitario s/n, 27002 Lugo, Spain.
| | - Håvard Jostein Haugen
- Department of Biomaterials, Institute of Clinical Dentistry, Faculty of Dentistry, University of Oslo, Oslo, Norway
| | - Mónica López-Peña
- Anatomy, Animal Production and Veterinary Clinical Sciences Department, Veterinary Faculty, Universidade de Santiago de Compostela, Campus Universitario s/n, 27002 Lugo, Spain
| | - Antonio González-Cantalapiedra
- Anatomy, Animal Production and Veterinary Clinical Sciences Department, Veterinary Faculty, Universidade de Santiago de Compostela, Campus Universitario s/n, 27002 Lugo, Spain
| | - Fernando Muñoz
- Anatomy, Animal Production and Veterinary Clinical Sciences Department, Veterinary Faculty, Universidade de Santiago de Compostela, Campus Universitario s/n, 27002 Lugo, Spain
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6
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Hatt LP, Wirth S, Ristaniemi A, Ciric DJ, Thompson K, Eglin D, Stoddart MJ, Armiento AR. Micro-porous PLGA/ β-TCP/TPU scaffolds prepared by solvent-based 3D printing for bone tissue engineering purposes. Regen Biomater 2023; 10:rbad084. [PMID: 37936893 PMCID: PMC10627288 DOI: 10.1093/rb/rbad084] [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: 05/22/2023] [Revised: 08/14/2023] [Accepted: 08/31/2023] [Indexed: 11/09/2023] Open
Abstract
The 3D printing process of fused deposition modelling is an attractive fabrication approach to create tissue-engineered bone substitutes to regenerate large mandibular bone defects, but often lacks desired surface porosity for enhanced protein adsorption and cell adhesion. Solvent-based printing leads to the spontaneous formation of micropores on the scaffold's surface upon solvent removal, without the need for further post processing. Our aim is to create and characterize porous scaffolds using a new formulation composed of mechanically stable poly(lactic-co-glycol acid) and osteoconductive β-tricalcium phosphate with and without the addition of elastic thermoplastic polyurethane prepared by solvent-based 3D-printing technique. Large-scale regenerative scaffolds can be 3D-printed with adequate fidelity and show porosity at multiple levels analysed via micro-computer tomography, scanning electron microscopy and N2 sorption. Superior mechanical properties compared to a commercially available calcium phosphate ink are demonstrated in compression and screw pull out tests. Biological assessments including cell activity assay and live-dead staining prove the scaffold's cytocompatibility. Osteoconductive properties are demonstrated by performing an osteogenic differentiation assay with primary human bone marrow mesenchymal stromal cells. We propose a versatile fabrication process to create porous 3D-printed scaffolds with adequate mechanical stability and osteoconductivity, both important characteristics for segmental mandibular bone reconstruction.
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Affiliation(s)
- Luan P Hatt
- AO Research Institute Davos, 7270 Davos Platz, Switzerland
- Institute for Biomechanics, ETH Zürich, 8093 Zürich, Switzerland
| | - Sylvie Wirth
- AO Research Institute Davos, 7270 Davos Platz, Switzerland
- Institute for Biomechanics, ETH Zürich, 8093 Zürich, Switzerland
| | | | - Daniel J Ciric
- AO Research Institute Davos, 7270 Davos Platz, Switzerland
| | - Keith Thompson
- AO Research Institute Davos, 7270 Davos Platz, Switzerland
- UCB Pharma, SL1 3WE Slough, UK
| | - David Eglin
- AO Research Institute Davos, 7270 Davos Platz, Switzerland
- Mines Saint-Étienne, Université de Lyon, Université Jean Monnet, INSERM, U1059, 42023 Sainbiose, Saint-Étienne, France
| | - Martin J Stoddart
- AO Research Institute Davos, 7270 Davos Platz, Switzerland
- Medical Center, Faculty of Medicine, Albert-Ludwigs-University of Freiburg, 79106 Freiburg, Germany
| | - Angela R Armiento
- AO Research Institute Davos, 7270 Davos Platz, Switzerland
- UCB Pharma, SL1 3WE Slough, UK
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7
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Dalfino S, Savadori P, Piazzoni M, Connelly ST, Giannì AB, Del Fabbro M, Tartaglia GM, Moroni L. Regeneration of Critical-Sized Mandibular Defects Using 3D-Printed Composite Scaffolds: A Quantitative Evaluation of New Bone Formation in In Vivo Studies. Adv Healthc Mater 2023; 12:e2300128. [PMID: 37186456 DOI: 10.1002/adhm.202300128] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2023] [Revised: 04/12/2023] [Indexed: 05/17/2023]
Abstract
Mandibular tissue engineering aims to develop synthetic substitutes for the regeneration of critical size defects (CSD) caused by a variety of events, including tumor surgery and post-traumatic resections. Currently, the gold standard clinical treatment of mandibular resections (i.e., autologous fibular flap) has many drawbacks, driving research efforts toward scaffold design and fabrication by additive manufacturing (AM) techniques. Once implanted, the scaffold acts as a support for native tissue and facilitates processes that contribute to its regeneration, such as cells infiltration, matrix deposition and angiogenesis. However, to fulfil these functions, scaffolds must provide bioactivity by mimicking natural properties of the mandible in terms of structure, composition and mechanical behavior. This review aims to present the state of the art of scaffolds made with AM techniques that are specifically employed in mandibular tissue engineering applications. Biomaterials chemical composition and scaffold structural properties are deeply discussed, along with strategies to promote osteogenesis (i.e., delivery of biomolecules, incorporation of stem cells, and approaches to induce vascularization in the constructs). Finally, a comparison of in vivo studies is made by taking into consideration the amount of new bone formation (NB), the CSD dimensions, and the animal model.
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Affiliation(s)
- Sophia Dalfino
- Department of Biomedical, Surgical and Dental Sciences, Università degli Studi di Milano, Milano, 20122, Italy
- Complex Tissue Regeneration Department, MERLN Institute for Technology Inspired Regenerative Medicine, Maastricht, 6229 ER, The Netherlands
- Fondazione IRCCS Ca' Granda, Ospedale Maggiore Policlinico, Milano, 20122, Italy
| | - Paolo Savadori
- Department of Biomedical, Surgical and Dental Sciences, Università degli Studi di Milano, Milano, 20122, Italy
- Fondazione IRCCS Ca' Granda, Ospedale Maggiore Policlinico, Milano, 20122, Italy
| | - Marco Piazzoni
- Department of Biomedical, Surgical and Dental Sciences, Università degli Studi di Milano, Milano, 20122, Italy
- Department of Physics, Università degli Studi di Milano, Milano, 20133, Italy
| | - Stephen Thaddeus Connelly
- Department of Oral & Maxillofacial Surgery, University of California San Francisco, 4150 Clement St, San Francisco, CA, 94121, USA
| | - Aldo Bruno Giannì
- Department of Biomedical, Surgical and Dental Sciences, Università degli Studi di Milano, Milano, 20122, Italy
- Fondazione IRCCS Ca' Granda, Ospedale Maggiore Policlinico, Milano, 20122, Italy
| | - Massimo Del Fabbro
- Department of Biomedical, Surgical and Dental Sciences, Università degli Studi di Milano, Milano, 20122, Italy
- Fondazione IRCCS Ca' Granda, Ospedale Maggiore Policlinico, Milano, 20122, Italy
| | - Gianluca Martino Tartaglia
- Department of Biomedical, Surgical and Dental Sciences, Università degli Studi di Milano, Milano, 20122, Italy
- Fondazione IRCCS Ca' Granda, Ospedale Maggiore Policlinico, Milano, 20122, Italy
| | - Lorenzo Moroni
- Complex Tissue Regeneration Department, MERLN Institute for Technology Inspired Regenerative Medicine, Maastricht, 6229 ER, The Netherlands
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Tu CC, Cheng NC, Yu J, Pan YX, Tai WC, Chen YC, Chang PC. Adipose-derived stem cell spheroid-laden microbial transglutaminase cross-linked gelatin hydrogel for treating diabetic periodontal wounds and craniofacial defects. Stem Cell Res Ther 2023; 14:20. [PMID: 36737813 PMCID: PMC9898981 DOI: 10.1186/s13287-023-03238-2] [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: 08/05/2022] [Accepted: 01/10/2023] [Indexed: 02/05/2023] Open
Abstract
BACKGROUND Diabetes mellitus deteriorates the destruction and impairs the healing of periodontal wounds and craniofacial defects. This study is to evaluate the potential of self-assembled adipose-derived stem cell spheroids (ADsp) in microbial transglutaminase cross-linked gelatin hydrogel (mTG) for treating diabetic periodontal wounds and craniofacial defects. METHODS Human adipose-derived stem cells (ADSCs) were isolated by lipoaspiration, pluripotent genes and trilineage differentiation were examined, and the maintenance of ADsp properties in mTG was verified. Oral mucosal wounds and calvarial osseous defects were created in diabetic rats. Gross observation, histologic evaluation, and immunohistochemistry for proliferating cells and keratinization were conducted in the mucosal wounds within 4-28 days. Micro-CT imaging, histologic evaluation, and immunohistochemistry for proliferating cells and osteogenic differentiation were conducted in the osseous defects at 7 and 28 days. RESULTS ADSCs expressed pluripotent genes and were capable of trilineage differentiation. ADsp retained morphology and stemness in mTG. In diabetic mucosal wounds, wound closure, epithelization, and keratinization were accelerated in those with ADsp and ADsp-mTG. In diabetic osseous defects, osteogenic differentiation markers were evidently expressed, cell proliferation was promoted from day 7, and bone formation was significantly promoted at day 28 in those with osteogenically pretreated ADsp-mTG. CONCLUSIONS ADsp-mTG accelerated diabetic oral mucosal wound healing, and osteogenically pretreated ADsp-mTG promoted diabetic osseous defect regeneration, proving that ADsp-mTG facilitated diabetic periodontal wound healing and craniofacial osseous defect regeneration.
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Affiliation(s)
- Che-Chang Tu
- grid.19188.390000 0004 0546 0241Graduate Institute of Clinical Dentistry, School of Dentistry, College of Medicine, National Taiwan University, Taipei, Taiwan ,grid.412094.a0000 0004 0572 7815Division of Periodontics, Department of Dentistry, National Taiwan University Hospital, Taipei, Taiwan
| | - Nai-Chen Cheng
- grid.412094.a0000 0004 0572 7815Department of Surgery, National Taiwan University Hospital and College of Medicine, Taipei, Taiwan
| | - Jiashing Yu
- grid.19188.390000 0004 0546 0241Department of Chemical Engineering, College of Engineering, National Taiwan University, Taipei, Taiwan
| | - Yi-Xuan Pan
- grid.412094.a0000 0004 0572 7815Division of Periodontics, Department of Dentistry, National Taiwan University Hospital, Taipei, Taiwan ,grid.412094.a0000 0004 0572 7815Department of Surgery, National Taiwan University Hospital and College of Medicine, Taipei, Taiwan
| | - Wei-Chiu Tai
- grid.19188.390000 0004 0546 0241Graduate Institute of Clinical Dentistry, School of Dentistry, College of Medicine, National Taiwan University, Taipei, Taiwan
| | - Yin-Chuan Chen
- grid.19188.390000 0004 0546 0241Department of Chemical Engineering, College of Engineering, National Taiwan University, Taipei, Taiwan
| | - Po-Chun Chang
- Graduate Institute of Clinical Dentistry, School of Dentistry, College of Medicine, National Taiwan University, Taipei, Taiwan. .,Division of Periodontics, Department of Dentistry, National Taiwan University Hospital, Taipei, Taiwan. .,School of Dentistry, College of Dental Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan.
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9
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Mayfield CK, Ayad M, Lechtholz-Zey E, Chen Y, Lieberman JR. 3D-Printing for Critical Sized Bone Defects: Current Concepts and Future Directions. Bioengineering (Basel) 2022; 9:680. [PMID: 36421080 PMCID: PMC9687148 DOI: 10.3390/bioengineering9110680] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2022] [Revised: 11/04/2022] [Accepted: 11/08/2022] [Indexed: 11/15/2023] Open
Abstract
The management and definitive treatment of segmental bone defects in the setting of acute trauma, fracture non-union, revision joint arthroplasty, and tumor surgery are challenging clinical problems with no consistently satisfactory solution. Orthopaedic surgeons are developing novel strategies to treat these problems, including three-dimensional (3D) printing combined with growth factors and/or cells. This article reviews the current strategies for management of segmental bone loss in orthopaedic surgery, including graft selection, bone graft substitutes, and operative techniques. Furthermore, we highlight 3D printing as a technology that may serve a major role in the management of segmental defects. The optimization of a 3D-printed scaffold design through printing technique, material selection, and scaffold geometry, as well as biologic additives to enhance bone regeneration and incorporation could change the treatment paradigm for these difficult bone repair problems.
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Affiliation(s)
- Cory K. Mayfield
- Department of Orthopaedic Surgery, Keck School of Medicine of USC, Los Angeles, CA 90033, USA
| | - Mina Ayad
- Department of Orthopaedic Surgery, Keck School of Medicine of USC, Los Angeles, CA 90033, USA
| | - Elizabeth Lechtholz-Zey
- Department of Orthopaedic Surgery, Keck School of Medicine of USC, Los Angeles, CA 90033, USA
| | - Yong Chen
- Department of Aerospace and Mechanical Engineering, Viterbi School of Engineering, University of Southern California, Los Angleles, CA 90089, USA
| | - Jay R. Lieberman
- Department of Orthopaedic Surgery, Keck School of Medicine of USC, Los Angeles, CA 90033, USA
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10
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Wang B, Feng C, Liu Y, Mi F, Dong J. Recent advances in biofunctional guided bone regeneration materials for repairing defective alveolar and maxillofacial bone: A review. JAPANESE DENTAL SCIENCE REVIEW 2022; 58:233-248. [PMID: 36065207 PMCID: PMC9440077 DOI: 10.1016/j.jdsr.2022.07.002] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2022] [Revised: 06/23/2022] [Accepted: 07/28/2022] [Indexed: 11/28/2022] Open
Abstract
The anatomy of the oral and maxillofacial sites is complex, and bone defects caused by trauma, tumors, and inflammation in these zones are extremely difficult to repair. Among the most effective and reliable methods to attain osteogenesis, the guided bone regeneration (GBR) technique is extensively applied in defective oral and maxillofacial GBR. Furthermore, endowing biofunctions is crucial for GBR materials applied in repairing defective alveolar and maxillofacial bones. In this review, recent advances in designing and fabricating GBR materials applied in oral and maxillofacial sites are classified and discussed according to their biofunctions, including maintaining space for bone growth; facilitating the adhesion, migration, and proliferation of osteoblasts; facilitating the migration and differentiation of progenitor cells; promoting vascularization; providing immunoregulation to induce osteogenesis; suppressing infection; and effectively mimicking natural tissues using graded biomimetic materials. In addition, new processing strategies (e.g., 3D printing) and new design concepts (e.g., developing bone mimetic extracellular matrix niches and preparing scaffolds to suppress connective tissue to actively acquire space for bone regeneration), are particularly worthy of further study. In the future, GBR materials with richer biological functions are expected to be developed based on an in-depth understanding of the mechanism of bone-GBR-material interactions.
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Affiliation(s)
- Bing Wang
- Department of Chemistry, School of Pharmacy, North Sichuan Medical College, Nanchong, China
- Corresponding author at: Department of Chemistry, School of Pharmacy, North Sichuan Medical College, Nanchong, China.
| | - Chengmin Feng
- Department of Otorhinolaryngology & Head Neck Surgery, Affiliated Hospital of North Sichuan Medical College, Nanchong, China
| | - Yiming Liu
- Department of Stomatology, North Sichuan Medical College, Nanchong, China
| | - Fanglin Mi
- Department of Stomatology, North Sichuan Medical College, Nanchong, China
- Department of Stomatology, Affiliated Hospital of North Sichuan Medical College, Nanchong, China
- Corresponding author at: Department of Stomatology, North Sichuan Medical College, Nanchong, China.
| | - Jun Dong
- Department of Chemistry, School of Pharmacy, North Sichuan Medical College, Nanchong, China
- Corresponding author.
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11
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Li W, Dai F, Zhang S, Xu F, Xu Z, Liao S, Zeng L, Song L, Ai F. Pore Size of 3D-Printed Polycaprolactone/Polyethylene Glycol/Hydroxyapatite Scaffolds Affects Bone Regeneration by Modulating Macrophage Polarization and the Foreign Body Response. ACS APPLIED MATERIALS & INTERFACES 2022; 14:20693-20707. [PMID: 35500207 DOI: 10.1021/acsami.2c02001] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
3D-printed porous bioactive ceramic scaffolds have been widely used in bone defect repair. However, material implantation is often accompanied by a foreign body response (FBR), which may affect host tissue regeneration. The physical properties of biomaterials, including shape, pore size, and porosity, control the relevant immune responses during tissue regeneration. To the best of our knowledge, the effect of the pore size of 3D-printed scaffolds on the immune response and bone-biomaterial integration has not been studied in vivo. Polycaprolactone/polyethylene glycol/hydroxyapatite (PCL/PEG/HA) bioactive scaffolds with different pore sizes, including 209.9 ± 77.1 μm (P200), 385.5 ± 28.6 μm (P400), and 582.1 ± 27.2 μm (P600), were prepared with a pneumatic extrusion 3D printer. Compared with other pore sizes, P600 significantly reduced the FBR and induced more M2 macrophage infiltration, vascular ingrowth, and new bone formation. Immunohistochemical staining revealed that the MyD88 protein might be involved in macrophage polarization-related signal transduction in response to the pore size. Based on these results, bone regeneration requires the active participation of the immune response, and the P600 PCL/PEG/HA scaffold is a preferable candidate for the repair of bone defects.
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Affiliation(s)
- Wenfeng Li
- The Department of Stomatology, The Second Affiliated Hospital of Nanchang University, Nanchang 330006, China
| | - Fang Dai
- The Department of Stomatology, The Second Affiliated Hospital of Nanchang University, Nanchang 330006, China
- The Institute of Periodontal Disease, Nanchang University, Nanchang 330006, China
| | - Shan Zhang
- School of Mechatronics Engineering, Nanchang University, Nanchang 330031, China
| | - Fancheng Xu
- The Department of Stomatology, The Second Affiliated Hospital of Nanchang University, Nanchang 330006, China
| | - Zhiyong Xu
- School of Pharmacy, Nanchang University, Nanchang 330031, China
| | - Shousheng Liao
- The Department of Pathology, The Second Affiliated Hospital of Nanchang University, Nanchang 330006, China
| | - Liangtao Zeng
- The Department of Pathology, The Second Affiliated Hospital of Nanchang University, Nanchang 330006, China
| | - Li Song
- The Department of Stomatology, The Second Affiliated Hospital of Nanchang University, Nanchang 330006, China
- The Institute of Periodontal Disease, Nanchang University, Nanchang 330006, China
| | - Fanrong Ai
- School of Mechatronics Engineering, Nanchang University, Nanchang 330031, China
- Nanchang Municipal Key Laboratory of 3D Bioprinting Technology and Equipment, Nanchang 330031, China
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12
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Mohd N, Razali M, Ghazali MJ, Abu Kasim NH. 3D-Printed Hydroxyapatite and Tricalcium Phosphates-Based Scaffolds for Alveolar Bone Regeneration in Animal Models: A Scoping Review. MATERIALS 2022; 15:ma15072621. [PMID: 35407950 PMCID: PMC9000240 DOI: 10.3390/ma15072621] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/31/2021] [Revised: 02/18/2022] [Accepted: 03/29/2022] [Indexed: 02/07/2023]
Abstract
Three-dimensional-printed scaffolds have received greater attention as an attractive option compared to the conventional bone grafts for regeneration of alveolar bone defects. Hydroxyapatite and tricalcium phosphates have been used as biomaterials in the fabrication of 3D-printed scaffolds. This scoping review aimed to evaluate the potential of 3D-printed HA and calcium phosphates-based scaffolds on alveolar bone regeneration in animal models. The systematic search was conducted across four electronic databases: Ovid, Web of Science, PubMed and EBSCOHOST, based on PRISMA-ScR guidelines until November 2021. The inclusion criteria were: (i) animal models undergoing alveolar bone regenerative surgery, (ii) the intervention to regenerate or augment bone using 3D-printed hydroxyapatite or other calcium phosphate scaffolds and (iii) histological and microcomputed tomographic analyses of new bone formation and biological properties of 3D-printed hydroxyapatite or calcium phosphates. A total of ten studies were included in the review. All the studies showed promising results on new bone formation without any inflammatory reactions, regardless of the animal species. In conclusion, hydroxyapatite and tricalcium phosphates are feasible materials for 3D-printed scaffolds for alveolar bone regeneration and demonstrated bone regenerative potential in the oral cavity. However, further research is warranted to determine the scaffold material which mimics the gold standard of care for bone regeneration in the load-bearing areas, including the masticatory load of the oral cavity.
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Affiliation(s)
- Nurulhuda Mohd
- Department of Restorative Dentistry, Faculty of Dentistry, Universiti Kebangsaan Malaysia, Jalan Raja Muda Abdul Aziz, Kuala Lumpur 50300, Malaysia;
| | - Masfueh Razali
- Department of Restorative Dentistry, Faculty of Dentistry, Universiti Kebangsaan Malaysia, Jalan Raja Muda Abdul Aziz, Kuala Lumpur 50300, Malaysia;
- Correspondence:
| | - Mariyam Jameelah Ghazali
- Department of Mechanical & Manufacturing Engineering, Faculty of Engineering & Built Environment, Universiti Kebangsaan Malaysia, Bangi 43600, Selangor, Malaysia;
| | - Noor Hayaty Abu Kasim
- Faculty of Dentistry, Universiti Kebangsaan Malaysia, Jalan Raja Muda Abdul Aziz, Kuala Lumpur 50300, Malaysia;
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Özcan M, Magini EB, Volpato GM, Cruz A, Volpato CAM. Additive Manufacturing Technologies for Fabrication of Biomaterials for Surgical Procedures in Dentistry: A Narrative Review. J Prosthodont 2022; 31:105-135. [PMID: 35313027 DOI: 10.1111/jopr.13484] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/13/2022] [Indexed: 11/28/2022] Open
Abstract
PURPOSE To screen and critically appraise available literature regarding additive manufacturing technologies for bone graft material fabrication in dentistry. MATERIAL AND METHODS PubMed and Scopus were searched up to May 2021. Studies reporting the additive manufacturing techniques to manufacture scaffolds for intraoral bone defect reconstruction were considered eligible. A narrative review was synthesized to discuss the techniques for bone graft material fabrication in dentistry and the biomaterials used. RESULTS The databases search resulted in 933 articles. After removing duplicate articles (128 articles), the titles and abstracts of the remaining articles (805 articles) were evaluated. A total of 89 articles were included in this review. Reading these articles, 5 categories of additive manufacturing techniques were identified: material jetting, powder bed fusion, vat photopolymerization, binder jetting, and material extrusion. CONCLUSIONS Additive manufacturing technologies for bone graft material fabrication in dentistry, especially 3D bioprinting approaches, have been successfully used to fabricate bone graft material with distinct compositions.
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Affiliation(s)
- Mutlu Özcan
- Division of Dental Biomaterials, Center of Dental Medicine, Clinic for Reconstructive Dentistry, University of Zürich, Zürich, Switzerland
| | - Eduarda Blasi Magini
- Department of Dentistry, Federal University of Santa Catarina, Florianópolis, Brazil
| | | | - Ariadne Cruz
- Department of Dentistry, Federal University of Santa Catarina, Florianópolis, Brazil
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14
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Ho MH, Huang KY, Tu CC, Tai WC, Chang CH, Chang YC, Chang PC. Functionally graded membrane deposited with PDLLA nanofibers encapsulating doxycycline and enamel matrix derivatives-loaded chitosan nanospheres for alveolar ridge regeneration. Int J Biol Macromol 2022; 203:333-341. [PMID: 35093432 DOI: 10.1016/j.ijbiomac.2022.01.147] [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: 06/16/2021] [Revised: 01/12/2022] [Accepted: 01/23/2022] [Indexed: 11/15/2022]
Abstract
Functionally graded membranes (FGM) with regenerative signals and nanofibrous topography mimicking the native extracellular matrix have been shown to improve the outcome of alveolar ridge regeneration (ARR). This study developed a novel FGM with doxycycline-enamel matrix derivative (EMD) nanofibrous composites deposition to coordinate anti-inflammation and differentiation signals, thus facilitating ARR. Doxycycline-loaded PDLLA nanofibers (PD), EMD-loaded chitosan nanospheres (CE), and CE-embedded PD (CE-PD) were fabricated by electrospinning, deposited on the surfaces of barrier membrane to develop a FGM, and the efficacy was validated by delivering the FGM to regenerate experimental alveolar ridge defects in rats. Results revealed that PD had potent antibacterial capability, and CE-PD allowed sustained release of EMD to promote osteogenesis in vitro. In the alveolar ridge defects, FGM with PD on the outer surface downregulated MMP-8, and wound dehiscence was further reduced with Cbfa1 upregulation in those treated by FGM with CE-PD on the inner surface at 1 week. FGM with CE-PD revealed significantly greater new bone formation and defect fill at 4 weeks. In conclusion, FGM with PD reduced early tissue breakdown and with CE-PD nanofibrous composites accelerated wound healing and facilitated osteogenesis, and thus could be an advantageous strategy for ARR.
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Affiliation(s)
- Ming-Hua Ho
- Department of Chemical Engineering, College of Engineering, National Taiwan University of Science and Technology, Taipei, Taiwan
| | - Kuan-Yu Huang
- Department of Chemical Engineering, College of Engineering, National Taiwan University of Science and Technology, Taipei, Taiwan
| | - Che-Chang Tu
- Graduate Institute of Clinical Dentistry, School of Dentistry, National Taiwan University, Taipei, Taiwan; Division of Periodontics, Department of Dentistry, National Taiwan University Hospital, Taipei, Taiwan
| | - Wei-Chiu Tai
- Graduate Institute of Clinical Dentistry, School of Dentistry, National Taiwan University, Taipei, Taiwan
| | - Ching-He Chang
- Graduate Institute of Clinical Dentistry, School of Dentistry, National Taiwan University, Taipei, Taiwan
| | - Ying-Chieh Chang
- Graduate Institute of Clinical Dentistry, School of Dentistry, National Taiwan University, Taipei, Taiwan
| | - Po-Chun Chang
- Graduate Institute of Clinical Dentistry, School of Dentistry, National Taiwan University, Taipei, Taiwan; Division of Periodontics, Department of Dentistry, National Taiwan University Hospital, Taipei, Taiwan; School of Dentistry, College of Dental Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan.
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15
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Computed Tomography as a Characterization Tool for Engineered Scaffolds with Biomedical Applications. MATERIALS 2021; 14:ma14226763. [PMID: 34832165 PMCID: PMC8619049 DOI: 10.3390/ma14226763] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/13/2021] [Revised: 10/29/2021] [Accepted: 11/04/2021] [Indexed: 12/16/2022]
Abstract
The ever-growing field of materials with applications in the biomedical field holds great promise regarding the design and fabrication of devices with specific characteristics, especially scaffolds with personalized geometry and architecture. The continuous technological development pushes the limits of innovation in obtaining adequate scaffolds and establishing their characteristics and performance. To this end, computed tomography (CT) proved to be a reliable, nondestructive, high-performance machine, enabling visualization and structure analysis at submicronic resolutions. CT allows both qualitative and quantitative data of the 3D model, offering an overall image of its specific architectural features and reliable numerical data for rigorous analyses. The precise engineering of scaffolds consists in the fabrication of objects with well-defined morphometric parameters (e.g., shape, porosity, wall thickness) and in their performance validation through thorough control over their behavior (in situ visualization, degradation, new tissue formation, wear, etc.). This review is focused on the use of CT in biomaterial science with the aim of qualitatively and quantitatively assessing the scaffolds’ features and monitoring their behavior following in vivo or in vitro experiments. Furthermore, the paper presents the benefits and limitations regarding the employment of this technique when engineering materials with applications in the biomedical field.
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16
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Chang PC, Lin ZJ, Luo HT, Tu CC, Tai WC, Chang CH, Chang YC. Degradable RGD-Functionalized 3D-Printed Scaffold Promotes Osteogenesis. J Dent Res 2021; 100:1109-1117. [PMID: 34334009 DOI: 10.1177/00220345211024634] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
To establish an ideal microenvironment for regenerating maxillofacial defects, recent research interests have concentrated on developing scaffolds with intricate configurations and manipulating the stiffness of extracellular matrix toward osteogenesis. Herein, we propose to infuse a degradable RGD-functionalized alginate matrix (RAM) with osteoid-like stiffness, as an artificial extracellular matrix, to a rigid 3D-printed hydroxyapatite scaffold for maxillofacial regeneration. The 3D-printed hydroxyapatite scaffold was produced by microextrusion technology and showed good dimensional stability with consistent microporous detail. RAM was crosslinked by calcium sulfate to manipulate the stiffness, and its degradation was accelerated by partial oxidation using sodium periodate. The results revealed that viability of bone marrow stem cells was significantly improved on the RAM and was promoted on the oxidized RAM. In addition, the migration and osteogenic differentiation of bone marrow stem cells were promoted on the RAM with osteoid-like stiffness, specifically on the oxidized RAM. The in vivo evidence revealed that nonoxidized RAM with osteoid-like stiffness upregulated osteogenic genes but prevented ingrowth of newly formed bone, leading to limited regeneration. Oxidized RAM with osteoid-like stiffness facilitated collagen synthesis, angiogenesis, and osteogenesis and induced robust bone formation, thereby significantly promoting maxillofacial regeneration. Overall, this study supported that in the stabilized microenvironment, oxidized RAM with osteoid-like stiffness offered requisite mechanical cues for osteogenesis and an appropriate degradation profile to facilitate bone formation. Combining the 3D-printed hydroxyapatite scaffold and oxidized RAM with osteoid-like stiffness may be an advantageous approach for maxillofacial regeneration.
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Affiliation(s)
- P-C Chang
- Graduate Institute of Oral Biology, School of Dentistry, National Taiwan University, Taipei.,Graduate Institute of Clinical Dentistry, School of Dentistry, National Taiwan University, Taipei.,Division of Periodontics, Department of Dentistry, National Taiwan University Hospital, Taipei.,School of Dentistry, College of Dental Medicine, Kaohsiung Medical University, Kaohsiung
| | - Z-J Lin
- Graduate Institute of Oral Biology, School of Dentistry, National Taiwan University, Taipei
| | - H-T Luo
- Graduate Institute of Clinical Dentistry, School of Dentistry, National Taiwan University, Taipei.,Division of Periodontics, Department of Dentistry, National Taiwan University Hospital, Taipei
| | - C-C Tu
- Graduate Institute of Clinical Dentistry, School of Dentistry, National Taiwan University, Taipei.,Division of Periodontics, Department of Dentistry, National Taiwan University Hospital, Taipei
| | - W-C Tai
- Graduate Institute of Clinical Dentistry, School of Dentistry, National Taiwan University, Taipei
| | - C-H Chang
- Graduate Institute of Clinical Dentistry, School of Dentistry, National Taiwan University, Taipei
| | - Y-C Chang
- Graduate Institute of Clinical Dentistry, School of Dentistry, National Taiwan University, Taipei
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Tsai HC, Chen CH, Mochly-Rosen D, Li YCE, Chen MH. The Role of Alcohol, LPS Toxicity, and ALDH2 in Dental Bony Defects. Biomolecules 2021; 11:biom11050651. [PMID: 33925003 PMCID: PMC8145216 DOI: 10.3390/biom11050651] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2021] [Revised: 04/18/2021] [Accepted: 04/20/2021] [Indexed: 01/02/2023] Open
Abstract
It is estimated that 560 million people carry an East Asian-specific ALDH2*2 dominant-negative mutation which leads to enzyme inactivation. This common ALDH2 polymorphism has a significant association with osteoporosis. We hypothesized that the ALDH2*2 mutation in conjunction with periodontal Porphyromonas gingivalis bacterial infection and alcohol drinking had an inhibitory effect on osteoblasts and bone regeneration. We examined the prospective association of ALDH2 activity with the proliferation and mineralization potential of human osteoblasts in vitro. The ALDH2 knockdown experiments showed that the ALDH2 knockdown osteoblasts lost their proliferation and mineralization capability. To mimic dental bacterial infection, we compared the dental bony defects in wild-type mice and ALDH2*2 knockin mice after injection with purified lipopolysaccharides (LPS), derived from P. gingivalis which is a bacterial species known to cause periodontitis. Micro-computed tomography (micro-CT) scan results indicated that bone regeneration was significantly affected in the ALDH2*2 knockin mice with about 20% more dental bony defects after LPS injection than the wild-type mice. Moreover, the ALDH2*2 knockin mutant mice had decreased osteoblast growth and more dental bone loss in the upper left jaw region after LPS injection. In conclusion, these results indicated that the ALDH2*2 mutation with alcohol drinking and chronic exposure to dental bacterial-derived toxin increased the risk of dental bone loss.
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Affiliation(s)
- Hsiao-Cheng Tsai
- Graduate Institute of Clinical Dentistry, School of Dentistry, National Taiwan University, Taipei 100, Taiwan;
- Department of Dentistry, National Taiwan University Hospital, Taipei 100, Taiwan
| | - Che-Hong Chen
- Department of Chemical and Systems Biology, Stanford University, School of Medicine, Stanford, CA 94305, USA; (C.-H.C.); (D.M.-R.)
| | - Daria Mochly-Rosen
- Department of Chemical and Systems Biology, Stanford University, School of Medicine, Stanford, CA 94305, USA; (C.-H.C.); (D.M.-R.)
| | - Yi-Chen Ethan Li
- Department of Chemical Engineering, Feng Chia University, Taichung 407, Taiwan
- Correspondence: (Y.-C.E.L.); (M.-H.C.); Tel.: +886-424-517-250 (ext. 3688) (Y.-C.E.L.); +886-223-123-456 (ext. 62342) (M.-H.C.)
| | - Min-Huey Chen
- Graduate Institute of Clinical Dentistry, School of Dentistry, National Taiwan University, Taipei 100, Taiwan;
- Department of Dentistry, National Taiwan University Hospital, Taipei 100, Taiwan
- Correspondence: (Y.-C.E.L.); (M.-H.C.); Tel.: +886-424-517-250 (ext. 3688) (Y.-C.E.L.); +886-223-123-456 (ext. 62342) (M.-H.C.)
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Preclinical evaluation of a 3D-printed hydroxyapatite/poly(lactic-co-glycolic acid) scaffold for ridge augmentation. J Formos Med Assoc 2020; 120:1100-1107. [PMID: 33191094 DOI: 10.1016/j.jfma.2020.10.022] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2020] [Revised: 10/16/2020] [Accepted: 10/26/2020] [Indexed: 02/07/2023] Open
Abstract
BACKGROUND/PURPOSE Supracrestal ridge augmentation (SRA) is a major challenge for clinicians. This study investigated the efficacy of a 3D-printed (3DP) hydroxyapatite/poly(lactic-co-glycolic acid) (HA/PLGA) scaffold as a potential biologic for SRA. METHODS Scaffolds that were 5 mm in diameter and 2.5-mm thick with a 1.2-mm diameter through-and-through central hole composed of 90% HA and 10% PLGA were printed using an extrusion-based bioprinter. The HA/PLGA scaffold was fixed with a 1.2-mm titanium mini-implant on the buccal surface of rat mandible (Ti-HPS), and the outcome of SRA were compared with sites treated with a titanium mini-implant alone (control) and a titanium mini-implant covered with deproteinized bovine bone-derived matrix (Ti-DBBM) at 4 and 8 weeks by microcomputed tomography (micro-CT), back-scattered SEM, and histology assessments. RESULTS The HA/PLGA scaffolds were 2.486 ± 0.082 mm thick with an outer diameter of 4.543 ± 0.057 mm and an inner diameter of 1.089 ± 0.045 mm, and the pore dimensions were 0.48-0.52 mm. There was significantly more mineralized tissue in the Ti-DBBM and Ti-HPS groups than in the control group at both time points. Newly formed bone (NB) was well-integrated with the DBBM and HA/PLGA scaffolds. The framework of the 3DP-HA/PLGA scaffold remained in place, and NB-implant contact (NBIC) was advanced to the middle level in the Ti-HPS group until 8 weeks, whereas dispersion of DBBM with a lower level NBIC was noted in the Ti-DBBM group at both time points. CONCLUSION The 3DP HA/PLGA scaffold maintains supracrestal space and demonstrates osteoconductivity to facilitate SRA.
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