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Zhang Q, Lou C, Li H, Li Y, Zhang H, Li Z, Qi G, Cai X, Luo Q, Fan L, Li X, Lao W, Zhu W, Li X. Zinc hybrid polyester barrier membrane accelerates guided tissue regeneration. J Control Release 2024; 368:676-690. [PMID: 38458572 DOI: 10.1016/j.jconrel.2024.03.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2023] [Revised: 03/04/2024] [Accepted: 03/05/2024] [Indexed: 03/10/2024]
Abstract
Barrier membranes play a pivotal role in the success of guided periodontal tissue regeneration. The biodegradable barriers predominantly used in clinical practice often lack sufficient barrier strength, antibacterial properties, and bioactivity, frequently leading to suboptimal regeneration outcomes. Although with advantages in mechanical strength, biodegradability and plasticity, bioinert aliphatic polyesters as barrier materials are usually polymerized via toxic catalysts, hard to be functionalized and lack of antibacterial properties. To address these challenges, we propose a new concept that controlled release of bioactive substance on the whole degradation course can give a bioinert aliphatic polyester bioactivity. Thus, a Zn-based catalytic system for polycondensation of dicarboxylic acids and diols is created to prepare zinc covalent hybrid polyester (PBS/ZnO). The atomically-dispersed Zn2+ ions entering main chain of polyester molecules endow PBS/ZnO barrier with antibacterial properties, barrier strength, excellent biocompatibility and histocompatibility. Further studies reveal that relying on long-term controlled release of Zn2+ ions, the PBS/ZnO membrane greatly expedites osteogenetic effect in guided tissue regeneration (GTR) by enhancing the mitochondrial function of macrophages to induce M2 polarization. These findings show a novel preparation strategy of bioactive polyester biomaterials based on long term controlled release of bioactive substance that integrates catalysis, material structures and function customization.
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Affiliation(s)
- Qiao Zhang
- Stomatology Hospital, School of Stomatology, Zhejiang University School of Medicine, Zhejiang Provincial Clinical Research Center for Oral Diseases, Key Laboratory of Oral Biomedical Research of Zhejiang Province, Cancer Center of Zhejiang University, Hangzhou 310006, China
| | - Chaoqian Lou
- Stomatology Hospital, School of Stomatology, Zhejiang University School of Medicine, Zhejiang Provincial Clinical Research Center for Oral Diseases, Key Laboratory of Oral Biomedical Research of Zhejiang Province, Cancer Center of Zhejiang University, Hangzhou 310006, China
| | - Hang Li
- Stomatology Hospital, School of Stomatology, Zhejiang University School of Medicine, Zhejiang Provincial Clinical Research Center for Oral Diseases, Key Laboratory of Oral Biomedical Research of Zhejiang Province, Cancer Center of Zhejiang University, Hangzhou 310006, China
| | - Yanyan Li
- Stomatology Hospital, School of Stomatology, Zhejiang University School of Medicine, Zhejiang Provincial Clinical Research Center for Oral Diseases, Key Laboratory of Oral Biomedical Research of Zhejiang Province, Cancer Center of Zhejiang University, Hangzhou 310006, China
| | - Hongjie Zhang
- College of Materials Science and Engineering, Zhejiang Sci-Tech University, Hangzhou 310018, China
| | - Zimeng Li
- Stomatology Hospital, School of Stomatology, Zhejiang University School of Medicine, Zhejiang Provincial Clinical Research Center for Oral Diseases, Key Laboratory of Oral Biomedical Research of Zhejiang Province, Cancer Center of Zhejiang University, Hangzhou 310006, China
| | - Ganggang Qi
- Stomatology Hospital, School of Stomatology, Zhejiang University School of Medicine, Zhejiang Provincial Clinical Research Center for Oral Diseases, Key Laboratory of Oral Biomedical Research of Zhejiang Province, Cancer Center of Zhejiang University, Hangzhou 310006, China
| | - Xia Cai
- Stomatology Hospital, School of Stomatology, Zhejiang University School of Medicine, Zhejiang Provincial Clinical Research Center for Oral Diseases, Key Laboratory of Oral Biomedical Research of Zhejiang Province, Cancer Center of Zhejiang University, Hangzhou 310006, China
| | - Qiaojie Luo
- Stomatology Hospital, School of Stomatology, Zhejiang University School of Medicine, Zhejiang Provincial Clinical Research Center for Oral Diseases, Key Laboratory of Oral Biomedical Research of Zhejiang Province, Cancer Center of Zhejiang University, Hangzhou 310006, China
| | - Lijie Fan
- Stomatology Hospital, School of Stomatology, Zhejiang University School of Medicine, Zhejiang Provincial Clinical Research Center for Oral Diseases, Key Laboratory of Oral Biomedical Research of Zhejiang Province, Cancer Center of Zhejiang University, Hangzhou 310006, China
| | - Xiaojun Li
- Stomatology Hospital, School of Stomatology, Zhejiang University School of Medicine, Zhejiang Provincial Clinical Research Center for Oral Diseases, Key Laboratory of Oral Biomedical Research of Zhejiang Province, Cancer Center of Zhejiang University, Hangzhou 310006, China.
| | - Weiwei Lao
- Stomatology Hospital, School of Stomatology, Zhejiang University School of Medicine, Zhejiang Provincial Clinical Research Center for Oral Diseases, Key Laboratory of Oral Biomedical Research of Zhejiang Province, Cancer Center of Zhejiang University, Hangzhou 310006, China.
| | - Weipu Zhu
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou 310027, China; Key Laboratory of Adsorption and Separation Materials & Technologies of Zhejiang Province, Hangzhou 310027, China
| | - Xiaodong Li
- Stomatology Hospital, School of Stomatology, Zhejiang University School of Medicine, Zhejiang Provincial Clinical Research Center for Oral Diseases, Key Laboratory of Oral Biomedical Research of Zhejiang Province, Cancer Center of Zhejiang University, Hangzhou 310006, China.
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Opris H, Baciut M, Bran S, Dinu C, Opris D, Armencea G, Onisor F, Bumbu B, Baciut G. Biocompatibility and histological responses of eggshell membrane for dental implant-guided bone regeneration. J Med Life 2023; 16:1007-1012. [PMID: 37900060 PMCID: PMC10600669 DOI: 10.25122/jml-2023-0267] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2023] [Accepted: 06/22/2023] [Indexed: 10/31/2023] Open
Abstract
Guided bone regeneration (GBR) utilizing eggshell membrane (ESM) as a potential biomaterial for dental implant therapy augmentation was explored in this study. ESM, an environmentally friendly waste product, possesses collagen-rich characteristics. The biocompatibility and histological responses of ESM were investigated in a rat model. Twelve young adult Wistar rats were used in this study. ESM samples were implanted in subcutaneous and intramuscular pockets, and samples were collected at 48 hours, 4 weeks, and 8 weeks post-implantation. Histological analysis revealed the changes in ESM over time. Results showed that ESM maintained its structural integrity, induced a moderate cellular response, and exhibited slow degradation, indicating potential biocompatibility. However, the lack of organized collagen arrangement in ESM led to the formation of irregular and polymorphic spaces, allowing cell migration. Encapsulation of ESM by newly proliferating collagen fibers and multinucleated giant cells was observed at later time points, indicating a foreign body reaction. Crosslinking might improve its performance as a separation membrane, as it has the potential to resist enzymatic degradation and enhance biomechanical properties. In conclusion, ESM demonstrated biocompatibility, slow degradation, and lack of foreign body reaction. While not suitable as a complete separation membrane due to irregular collagen arrangement, further research involving crosslinking could enhance its properties, making it a viable option for guided bone regeneration applications in dental implant therapy. This study highlights the potential of repurposing waste materials for medical purposes and underscores the importance of controlled collagen structure in biomaterial development.
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Affiliation(s)
- Horia Opris
- Maxillofacial Surgery and Implantology, Faculty of Medicine, Iuliu Hatieganu University of Pharmacy and Medicine, Cluj-Napoca, Romania
| | - Mihaela Baciut
- Maxillofacial Surgery and Implantology, Faculty of Medicine, Iuliu Hatieganu University of Pharmacy and Medicine, Cluj-Napoca, Romania
| | - Simion Bran
- Maxillofacial Surgery and Implantology, Faculty of Medicine, Iuliu Hatieganu University of Pharmacy and Medicine, Cluj-Napoca, Romania
| | - Cristian Dinu
- Maxillofacial Surgery and Implantology, Faculty of Medicine, Iuliu Hatieganu University of Pharmacy and Medicine, Cluj-Napoca, Romania
| | - Daiana Opris
- Maxillofacial Surgery and Implantology, Faculty of Medicine, Iuliu Hatieganu University of Pharmacy and Medicine, Cluj-Napoca, Romania
| | - Gabriel Armencea
- Maxillofacial Surgery and Implantology, Faculty of Medicine, Iuliu Hatieganu University of Pharmacy and Medicine, Cluj-Napoca, Romania
| | - Florin Onisor
- Maxillofacial Surgery and Implantology, Faculty of Medicine, Iuliu Hatieganu University of Pharmacy and Medicine, Cluj-Napoca, Romania
| | - Bogdan Bumbu
- Department of Oral Surgery, Faculty of Medicine and Pharmacy, University of Oradea, Oradea, Romania
| | - Grigore Baciut
- Maxillofacial Surgery and Implantology, Faculty of Medicine, Iuliu Hatieganu University of Pharmacy and Medicine, Cluj-Napoca, Romania
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Patil S, Bhandi S, Bakri MMH, Albar DH, Alzahrani KJ, Al-Ghamdi MS, Alnfiai MM, Tovani-Palone MR. Evaluation of efficacy of non-resorbable membranes compared to resorbable membranes in patients undergoing guided bone regeneration. Heliyon 2023; 9:e13488. [PMID: 36942236 PMCID: PMC10024103 DOI: 10.1016/j.heliyon.2023.e13488] [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: 06/26/2022] [Revised: 01/25/2023] [Accepted: 01/31/2023] [Indexed: 02/05/2023] Open
Abstract
Background Replacement of missing teeth in patients with prolonged edentulism poses a challenge for clinicians. An extended period of edentulism results in severe atrophy of alveolar ridges rendering them unsatisfactory for rehabilitation using an implant-supported prosthesis. To overcome this difficulty, Guided Bone Regeneration (GBR) was introduced and constructed upon the principles of Guided Tissue Regeneration (GTR) procedures. Evidence suggests that GBR has proven to be a predictable treatment modality for treating vertical and horizontal ridge deficiencies. Objective The present systematic review aimed to evaluate the efficacy of non-resorbable (N-RES) membranes compared to resorbable (RES) membranes in patients undergoing GBR. Methods An electronic search of three databases, including PubMed, Web of Science, and Scopus, was conducted for articles published until March 2022. A supplementary manual search of references from these articles was performed to include any articles that may have been overlooked in the electronic search. Articles that evaluated the efficacy of RES membranes and N-RES membranes in GBR were included. Case reports, case series, commentaries, letters to the editor, narrative or systematic reviews were excluded. Articles in languages other than English were also excluded. The articles were assessed against risk of bias 2 tool for Randomized Control Trials (RCTs) and ROBINS-I tool for Non-Randomized Clinical Trials (N-RCTs). The Grading of Recommendations Assessment, Development and Evaluation (GRADE) assessment was followed based on the Cochrane Handbook for quality assessment. A summary of findings table was used to present the results. Results One hundred and fifty one articles were identified in an electronic search. Eight articles met the inclusion criteria and were included in the present systematic review. The studies were conducted on partially or completely edentulous patients with alveolar ridge deficiencies undergoing vertical or horizontal bone for subsequent implant placement. The majority of the studies reported similar results for bone gain in both RES and N-RES membrane groups. Conclusion The available evidence suggests that RES and N-RES membranes are equally effective in GBR. However, the evidence must be interpreted with caution due to its 'low quality' GRADE assessment. Clinical implications Further research focusing on human clinical trials with well-matched subjects with homogeneity in the type and method of GBR and method of assessment of new bone formation will derive conclusive results on the efficacy of RES and N-RES membranes in achieving new bone formation.
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Affiliation(s)
- Shankargouda Patil
- College of Dental Medicine, Roseman University of Health Sciences, South Jordan, Utah 84095, USA
| | - Shilpa Bhandi
- College of Dental Medicine, Roseman University of Health Sciences, South Jordan, Utah 84095, USA
| | - Mohammed Mousa H. Bakri
- Department of Oral and Maxillofacial Surgery and Diagnostic Sciences, College of Dentistry, Jazan University, Jazan 45142, Saudi Arabia
| | - Dhalia H. Albar
- Department of Preventive Dental Sciences, College of Dentistry, Jazan University, Jazan 45142, Saudi Arabia
| | - Khalid J. Alzahrani
- Department of Clinical Laboratories Sciences, College of Applied Medical Sciences, Taif University, Taif 21944, Saudi Arabia
| | - Mohammad S. Al-Ghamdi
- Department of Clinical Laboratories Sciences, College of Applied Medical Sciences, Taif University, Taif 21944, Saudi Arabia
| | - Mrim M. Alnfiai
- Department of Clinical Laboratories Sciences, College of Applied Medical Sciences, Taif University, Taif 21944, Saudi Arabia
| | - Marcos Roberto Tovani-Palone
- Department of Research Analytics, Saveetha Dental College and Hospitals, Saveetha Institute of Medical and Technical Sciences (SIMATS), Chennai 600077, India
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Bizelli VF, Ramos EU, Veras ASC, Teixeira GR, Faverani LP, Bassi APF. Calvaria Critical Size Defects Regeneration Using Collagen Membranes to Assess the Osteopromotive Principle: An Animal Study. MEMBRANES 2022; 12:membranes12050461. [PMID: 35629786 PMCID: PMC9143843 DOI: 10.3390/membranes12050461] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/08/2022] [Revised: 03/10/2022] [Accepted: 03/22/2022] [Indexed: 11/16/2022]
Abstract
Guided bone regeneration (GBR) is a common practice in implantology, and it is necessary to use membranes in this process. The present study aimed to evaluate the osteopromotive principle of two porcine collagen membranes in critical-size defects at rats calvaria. Ninety-six Albinus Wistar rats were divided into BG (positive control), JS, CS, and CG (negative control) groups and were sacrificed at 7, 15, 30, and 60 days postoperatively. The samples were assessed by histological, histometric, immunohistochemical, and microtomographic analyses. More intense inflammatory profile was seen in the JS and CS groups (p < 0.05). At 60 days, the JS group showed a satisfactory osteopromotive behavior compared to BG (p = 0.193), while CS did not demonstrate the capacity to promote bone formation. At the immunohistochemical analysis, the CS showed mild labeling for osteocalcin (OC) and osteopontin (OP), the JS demonstrated mild to moderate for OC and OP and the BG demonstrated moderate to intense for OC and OP. The tridimensional analysis found the lowest average for the total volume of newly formed bone in the CS (84,901 mm2), compared to the BG (319,834 mm2) (p < 0.05). We conclude that the different thicknesses and treatment techniques of each membrane may interfere with its biological behavior.
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Affiliation(s)
- Vinícius Ferreira Bizelli
- Department of Diagnosis and Surgery, School of Dentistry, São Paulo State University (UNESP), Rua José Bonifácio, 1193, Araçatuba 16015-050, SP, Brazil; (E.U.R.); (L.P.F.); (A.P.F.B.)
- Correspondence: ; Tel.: +55-(014)-981713458
| | - Edith Umasi Ramos
- Department of Diagnosis and Surgery, School of Dentistry, São Paulo State University (UNESP), Rua José Bonifácio, 1193, Araçatuba 16015-050, SP, Brazil; (E.U.R.); (L.P.F.); (A.P.F.B.)
| | - Allice Santos Cruz Veras
- Multicenter Graduate Program in Physiological Sciences, SBFIS, São Paulo State University (UNESP), Rua Roberto Simonsen, 305, Presidente Prudente 19060-900, SP, Brazil; (A.S.C.V.); (G.R.T.)
| | - Giovana Rampazzo Teixeira
- Multicenter Graduate Program in Physiological Sciences, SBFIS, São Paulo State University (UNESP), Rua Roberto Simonsen, 305, Presidente Prudente 19060-900, SP, Brazil; (A.S.C.V.); (G.R.T.)
| | - Leonardo P. Faverani
- Department of Diagnosis and Surgery, School of Dentistry, São Paulo State University (UNESP), Rua José Bonifácio, 1193, Araçatuba 16015-050, SP, Brazil; (E.U.R.); (L.P.F.); (A.P.F.B.)
| | - Ana Paula Farnezi Bassi
- Department of Diagnosis and Surgery, School of Dentistry, São Paulo State University (UNESP), Rua José Bonifácio, 1193, Araçatuba 16015-050, SP, Brazil; (E.U.R.); (L.P.F.); (A.P.F.B.)
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Kim JW, Yang BE, Hong SJ, Choi HG, Byeon SJ, Lim HK, Chung SM, Lee JH, Byun SH. Bone Regeneration Capability of 3D Printed Ceramic Scaffolds. Int J Mol Sci 2020; 21:ijms21144837. [PMID: 32650589 PMCID: PMC7402304 DOI: 10.3390/ijms21144837] [Citation(s) in RCA: 37] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2020] [Revised: 07/01/2020] [Accepted: 07/07/2020] [Indexed: 01/01/2023] Open
Abstract
In this study, we evaluated the bone regenerative capability of a customizable hydroxyapatite (HA) and tricalcium phosphate (TCP) scaffold using a digital light processing (DLP)-type 3D printing system. Twelve healthy adult male beagle dogs were the study subjects. A total of 48 defects were created, with two defects on each side of the mandible in all the dogs. The defect sites in the negative control group (sixteen defects) were left untreated (the NS group), whereas those in the positive control group (sixteen defects) were filled with a particle-type substitute (the PS group). The defect sites in the experimental groups (sixteen defects) were filled with a 3D printed substitute (the 3DS group). Six dogs each were exterminated after healing periods of 4 and 8 weeks. Radiological and histomorphometrical evaluations were then performed. None of the groups showed any specific problems. In radiological evaluation, there was a significant difference in the amount of new bone formation after 4 weeks (p < 0.05) between the PS and 3DS groups. For both of the evaluations, the difference in the total amount of bone after 8 weeks was statistically significant (p < 0.05). There was no statistically significant difference in new bone between the PS and 3DS groups in both evaluations after 8 weeks (p > 0.05). The proposed HA/TCP scaffold without polymers, obtained using the DLP-type 3D printing system, can be applied for bone regeneration. The 3D printing of a HA/TCP scaffold without polymers can be used for fabricating customized bone grafting substitutes.
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Affiliation(s)
- Ju-Won Kim
- Department of Oral and Maxillofacial Surgery, Dentistry, Sacred Heart Hospital, Hallym University College of Medicine, Anyang 14068, Korea; (J.-W.K.); (B.-E.Y.)
- Graduate School of Clinical Dentistry, Hallym University, Chuncheon 24252, Korea
| | - Byoung-Eun Yang
- Department of Oral and Maxillofacial Surgery, Dentistry, Sacred Heart Hospital, Hallym University College of Medicine, Anyang 14068, Korea; (J.-W.K.); (B.-E.Y.)
- Graduate School of Clinical Dentistry, Hallym University, Chuncheon 24252, Korea
| | - Seok-Jin Hong
- Department of Otorhinolaryngology-Head & Neck Surgery, Dongtan Sacred Heart Hospital, Hallym University College of Medicine, Dongtan 18450, Korea;
| | - Hyo-Geun Choi
- Department of Otorhinolaryngology-Head & Neck Surgery, Sacred Heart Hospital, Hallym University College of Medicine, Anyang 14068, Korea;
| | - Sun-Ju Byeon
- Department of Pathology, Dongtan Sacred Heart Hospital, Hallym University College of Medicine, Dongtan 18450, Korea;
| | - Ho-Kyung Lim
- Department of Oral and Maxillofacial Surgery, Dentistry, Korea University Guro Hospital, Seoul 08308, Korea;
| | | | - Jong-Ho Lee
- Department of Oral & Maxillofacial Surgery, School of Dentistry, Seoul National University, Seoul 03080, Korea;
| | - Soo-Hwan Byun
- Department of Oral and Maxillofacial Surgery, Dentistry, Sacred Heart Hospital, Hallym University College of Medicine, Anyang 14068, Korea; (J.-W.K.); (B.-E.Y.)
- Graduate School of Clinical Dentistry, Hallym University, Chuncheon 24252, Korea
- Department of Oral & Maxillofacial Surgery, School of Dentistry, Seoul National University, Seoul 03080, Korea;
- Correspondence: ; Tel.: +82-10-8787-2640
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Design of a biodegradable UV-irradiated gelatin-chitosan/nanocomposed membrane with osteogenic ability for application in bone regeneration. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2019; 99:875-886. [DOI: 10.1016/j.msec.2019.01.135] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/02/2018] [Revised: 01/09/2019] [Accepted: 01/31/2019] [Indexed: 12/27/2022]
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Schmidt LE, Hadad H, Vasconcelos IRD, Colombo LT, da Silva RC, Santos AFP, Cervantes LCC, Poli PP, Signorino F, Maiorana C, Carvalho PSPD, Souza FÁ. Critical Defect Healing Assessment in Rat Calvaria Filled with Injectable Calcium Phosphate Cement. J Funct Biomater 2019; 10:jfb10020021. [PMID: 31085984 PMCID: PMC6616410 DOI: 10.3390/jfb10020021] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2019] [Revised: 04/29/2019] [Accepted: 05/07/2019] [Indexed: 01/19/2023] Open
Abstract
(1) Background: The tissue engineering field has been working to find biomaterials that mimic the biological properties of autogenous bone grafts. (2) Aim: To evaluate the osteoconduction potential of injectable calcium phosphate cement implanted in critical defects in rat calvaria. (3) Methods: In the calvarial bone of 36 rats, 7-mm diameter critical size defects were performed. Afterwards, the animals were randomly divided into three groups according to filler material: a blood clot group (BC), blood clot membrane group (BCM), and an injectable β-tricalcium phosphate group (HBS) cement group. After periods of 30 and 60 days, the animals were euthanized, the calvaria was isolated, and submitted to a decalcification process for later blades confection. Qualitative and quantitative analysis of the neoformed bone tissue were conducted, and histometric data were statistically analyzed. (4) Results: Sixty days post-surgery, the percentages of neoformed bone were 10.67 ± 5.57 in group BC, 16.71 ± 5.0 in group BCM, and 55.11 ± 13.20 in group HBS. The bone formation values in group HBS were significantly higher (p < 0.05) than in groups BC and BCM. (5) Conclusions: Based on these results, it can be concluded that injectable calcium phosphate cement is an osteoconductive material that can be used to fill bone cavities.
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Affiliation(s)
- Luis Eduardo Schmidt
- Implant Dentistry Post-Graduation Program, São Leopoldo Mandic School of Dentistry and Research Center, Campinas 13.045-755, Brazil.
| | - Henrique Hadad
- Department of Surgery and Integrated Clinic, Araçatuba Dental of School, São Paulo State University Júlio de Mesquita Filho-UNESP, Araçatuba, São Paulo 16.015.050, Brazil.
| | - Igor Rodrigues de Vasconcelos
- Implant Dentistry Post-Graduation Program, São Leopoldo Mandic School of Dentistry and Research Center, Campinas 13.045-755, Brazil.
| | - Luara Teixeira Colombo
- Department of Surgery and Integrated Clinic, Araçatuba Dental of School, São Paulo State University Júlio de Mesquita Filho-UNESP, Araçatuba, São Paulo 16.015.050, Brazil.
| | - Rodrigo Capalbo da Silva
- Department of Surgery and Integrated Clinic, Araçatuba Dental of School, São Paulo State University Júlio de Mesquita Filho-UNESP, Araçatuba, São Paulo 16.015.050, Brazil.
| | - Ana Flavia Piquera Santos
- Department of Surgery and Integrated Clinic, Araçatuba Dental of School, São Paulo State University Júlio de Mesquita Filho-UNESP, Araçatuba, São Paulo 16.015.050, Brazil.
| | - Lara Cristina Cunha Cervantes
- Department of Surgery and Integrated Clinic, Araçatuba Dental of School, São Paulo State University Júlio de Mesquita Filho-UNESP, Araçatuba, São Paulo 16.015.050, Brazil.
| | - Pier Paolo Poli
- Implant Center for Edentulism and Jawbone Atrophies, Maxillofacial Surgery and Odontostomatology Unit, Fondazione IRCSS Cà Granda Maggiore Policlinico Hospital, University of Milan, 47.031 Milan, Italy.
| | - Fabrizio Signorino
- Implant Center for Edentulism and Jawbone Atrophies, Maxillofacial Surgery and Odontostomatology Unit, Fondazione IRCSS Cà Granda Maggiore Policlinico Hospital, University of Milan, 47.031 Milan, Italy.
| | - Carlo Maiorana
- Implant Center for Edentulism and Jawbone Atrophies, Maxillofacial Surgery and Odontostomatology Unit, Fondazione IRCSS Cà Granda Maggiore Policlinico Hospital, University of Milan, 47.031 Milan, Italy.
| | - Paulo Sérgio Perri de Carvalho
- Implant Dentistry Post-Graduation Program, São Leopoldo Mandic School of Dentistry and Research Center, Campinas 13.045-755, Brazil.
| | - Francisley Ávila Souza
- Department of Surgery and Integrated Clinic, Araçatuba Dental of School, São Paulo State University Júlio de Mesquita Filho-UNESP, Araçatuba, São Paulo 16.015.050, Brazil.
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Chen YH, Tai HY, Fu E, Don TM. Guided bone regeneration activity of different calcium phosphate/chitosan hybrid membranes. Int J Biol Macromol 2018; 126:159-169. [PMID: 30586584 DOI: 10.1016/j.ijbiomac.2018.12.199] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2018] [Revised: 12/12/2018] [Accepted: 12/21/2018] [Indexed: 11/27/2022]
Abstract
To fulfill the properties of membrane for guided bone tissue regeneration, chitosan (CS) and calcium phosphates were blended to produce porous hybrid membranes by lyophilization. We synthesized three different calcium phosphates: calcium deficient hydroxyapatite (CDHA), biphasic calcium phosphate (BCP) and β‑tricalcium phosphate (TCP) by a reverse emulsion method followed by calcination, and compared their efficacy on bone regeneration. The CDHA/CS, BCP/CS, and TCP/CS membranes had an interconnected pore structure with porosity of 91-95% and pore size of 102-147 μm. These hybrid membranes could promote the permeability and adhesiveness to bone cells as demonstrated by in-vitro cell culture of primary osteoblast. Particularly, the CDHA/CS and BCP/CS could further increase the cell attachment and differentiation, whereas the BCP/CS and TCP/CS could enhance cell proliferation. Finally, these hybrid membranes were assessed for guided bone regeneration in the critical-size calvarial bone defects created in SD rats. Histological and histomorphometric analyses revealed that the BCP/CS membrane had the most effective bone regeneration compared to the other two hybrid membranes. At three-week post-surgery, the BCP/CS membrane could enhance new bone generation up to 57% of the original bone defect area. The BCP/CS membrane thus has the potential to be applied for guided bone regeneration.
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Affiliation(s)
- Yau-Hung Chen
- Department of Chemistry, Tamkang University, No. 151 Ying-chuan Road, Tamsui, New Taipei City, Taiwan.
| | - Hung-Yin Tai
- Department of Chemical and Materials Engineering, Tamkang University, No. 151 Ying-chuan Road, Tamsui, New Taipei City, Taiwan
| | - Earl Fu
- Department of Dentistry, National Defense Medical Center, Tri-service General Hospital, Neihu District, Taipei City 114, Taiwan.
| | - Trong-Ming Don
- Department of Chemical and Materials Engineering, Tamkang University, No. 151 Ying-chuan Road, Tamsui, New Taipei City, Taiwan.
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Korzinskas T, Jung O, Smeets R, Stojanovic S, Najman S, Glenske K, Hahn M, Wenisch S, Schnettler R, Barbeck M. In Vivo Analysis of the Biocompatibility and Macrophage Response of a Non-Resorbable PTFE Membrane for Guided Bone Regeneration. Int J Mol Sci 2018; 19:E2952. [PMID: 30262765 PMCID: PMC6213856 DOI: 10.3390/ijms19102952] [Citation(s) in RCA: 48] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2018] [Revised: 09/19/2018] [Accepted: 09/25/2018] [Indexed: 01/12/2023] Open
Abstract
The use of non-resorbable polytetrafluoroethylene (PTFE) membranes is indicated for the treatment of large, non-self-containing bone defects, or multi-walled defects in the case of vertical augmentations. However, less is known about the molecular basis of the foreign body response to PTFE membranes. In the present study, the inflammatory tissue responses to a novel high-density PTFE (dPTFE) barrier membrane have preclinically been evaluated using the subcutaneous implantation model in BALB/c mice by means of histopathological and histomorphometrical analysis methods and immunohistochemical detection of M1- and M2-macrophages. A collagen membrane was used as the control material. The results of the present study demonstrate that the tissue response to the dPTFE membrane involves inflammatory macrophages, but comparable cell numbers were also detected in the implant beds of the control collagen membrane, which is known to be biocompatible. Although these data indicate that the analyzed dPTFE membrane is not fully bioinert, but its biocompatibility is comparable to collagen-based membranes. Based on its optimal biocompatibility, the novel dPTFE barrier membrane may optimally support bone healing within the context of guided bone regeneration (GBR).
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Affiliation(s)
- Tadas Korzinskas
- Section for Regenerative Orofacial Medicine, Department of Oral and Maxillofacial Surgery, University Hospital Hamburg-Eppendorf, 20246 Hamburg, Germany.
| | - Ole Jung
- Section for Regenerative Orofacial Medicine, Department of Oral and Maxillofacial Surgery, University Hospital Hamburg-Eppendorf, 20246 Hamburg, Germany.
| | - Ralf Smeets
- Section for Regenerative Orofacial Medicine, Department of Oral and Maxillofacial Surgery, University Hospital Hamburg-Eppendorf, 20246 Hamburg, Germany.
| | - Sanja Stojanovic
- Institute of Biology and Human Genetics, Department for Cell and Tissue Engineering, University of Niš, Faculty of Medicine, 18106 Niš, Serbia.
| | - Stevo Najman
- Institute of Biology and Human Genetics, Department for Cell and Tissue Engineering, University of Niš, Faculty of Medicine, 18106 Niš, Serbia.
| | - Kristina Glenske
- Clinic of Small Animals, c/o Institute of Veterinary Anatomy, Histology and Embryology, Justus Liebig University of Giessen, 35390 Giessen, Germany.
| | - Michael Hahn
- Department of Osteology and Biomechanics, University Hospital Hamburg-Eppendorf, 20246 Hamburg, Germany.
| | - Sabine Wenisch
- Clinic of Small Animals, c/o Institute of Veterinary Anatomy, Histology and Embryology, Justus Liebig University of Giessen, 35390 Giessen, Germany.
| | - Reinhard Schnettler
- University Medical Center, Justus Liebig University of Giessen, 35390 Giessen, Germany.
| | - Mike Barbeck
- Section for Regenerative Orofacial Medicine, Department of Oral and Maxillofacial Surgery, University Hospital Hamburg-Eppendorf, 20246 Hamburg, Germany.
- BerlinAnalytix GmbH, 12109 Berlin, Germany.
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10
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Gonçalves F, de Moraes MS, Ferreira LB, Carreira ACO, Kossugue PM, Boaro LCC, Bentini R, Garcia CRDS, Sogayar MC, Arana-Chavez VE, Catalani LH. Combination of Bioactive Polymeric Membranes and Stem Cells for Periodontal Regeneration: In Vitro and In Vivo Analyses. PLoS One 2016; 11:e0152412. [PMID: 27031990 PMCID: PMC4816539 DOI: 10.1371/journal.pone.0152412] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2015] [Accepted: 03/14/2016] [Indexed: 11/18/2022] Open
Abstract
Regeneration of periodontal tissues requires a concerted effort to obtain consistent and predictable results in vivo. The aim of the present study was to test a new family of bioactive polymeric membranes in combination with stem cell therapy for periodontal regeneration. In particular, the novel polyester poly(isosorbide succinate-co-L-lactide) (PisPLLA) was compared with poly(L-lactide) (PLLA). Both polymers were combined with collagen (COL), hydroxyapatite (HA) and the growth factor bone morphogenetic protein-7 (BMP7), and their osteoinductive capacity was evaluated via in vitro and in vivo experiments. Membranes composed of PLLA/COL/HA or PisPLLA/COL/HA were able to promote periodontal regeneration and new bone formation in fenestration defects in rat jaws. According to quantitative real-time polymerase chain reaction (qRT-PCR) and Alizarin Red assays, better osteoconductive capacity and increased extracellular mineralization were observed for PLLA/COL/HA, whereas better osteoinductive properties were associated with PisPLLA/COL/HA. We concluded that membranes composed of either PisPLLA/COL/HA or PLLA/COL/HA present promising results in vitro as well as in vivo and that these materials could be potentially applied in periodontal regeneration.
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Affiliation(s)
- Flávia Gonçalves
- Departamento de Química Fundamental, Instituto de Química, Universidade de São Paulo, São Paulo, SP, Brasil, 05508–000
| | - Míriam Santos de Moraes
- Departamento de Fisiologia, Instituto de Biociências, Universidade de São Paulo, São Paulo, SP, Brasil, 05508–090
| | - Lorraine Braga Ferreira
- Departamento de Biomateriais e Biologia Oral, Faculdade de Odontologia, Universidade de São Paulo, São Paulo, SP, Brasil, 05508–000
| | - Ana Cláudia Oliveira Carreira
- NUCEL/NETCEM—Núcleo de Terapia Celular e Molecular, Faculdade de Medicina, Universidade de São Paulo, São Paulo, SP, Brasil, 05360–130
| | - Patrícia Mayumi Kossugue
- NUCEL/NETCEM—Núcleo de Terapia Celular e Molecular, Faculdade de Medicina, Universidade de São Paulo, São Paulo, SP, Brasil, 05360–130
| | - Letícia Cristina Cidreira Boaro
- Departamento de Biomateriais e Biologia Oral, Faculdade de Odontologia, Universidade de São Paulo, São Paulo, SP, Brasil, 05508–000
| | - Ricardo Bentini
- Departamento de Química Fundamental, Instituto de Química, Universidade de São Paulo, São Paulo, SP, Brasil, 05508–000
| | - Célia Regina da Silva Garcia
- Departamento de Fisiologia, Instituto de Biociências, Universidade de São Paulo, São Paulo, SP, Brasil, 05508–090
| | - Mari Cleide Sogayar
- NUCEL/NETCEM—Núcleo de Terapia Celular e Molecular, Faculdade de Medicina, Universidade de São Paulo, São Paulo, SP, Brasil, 05360–130
- Departamento de Bioquímica, Instituto de Química, Universidade de São Paulo, São Paulo, SP, Brasil, 05508–000
| | - Victor Elias Arana-Chavez
- Departamento de Biomateriais e Biologia Oral, Faculdade de Odontologia, Universidade de São Paulo, São Paulo, SP, Brasil, 05508–000
| | - Luiz Henrique Catalani
- Departamento de Química Fundamental, Instituto de Química, Universidade de São Paulo, São Paulo, SP, Brasil, 05508–000
- * E-mail:
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11
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Yang L, Lu W, Pang Y, Huang X, Wang Z, Qin A, Hu Q. Fabrication of a novel chitosan scaffold with asymmetric structure for guided tissue regeneration. RSC Adv 2016. [DOI: 10.1039/c6ra12370h] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Asymmetric chitosan scaffold with a loose layer and a dense layer exhibited outstanding bone regenerative ability and appropriate degradability.
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Affiliation(s)
- Ling Yang
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization
- Department of Polymer Science and Engineering
- Zhejiang University
- Hangzhou 310027
- China
| | - Wentao Lu
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization
- Department of Polymer Science and Engineering
- Zhejiang University
- Hangzhou 310027
- China
| | - Yichuan Pang
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization
- Department of Polymer Science and Engineering
- Zhejiang University
- Hangzhou 310027
- China
| | - Xiaofei Huang
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization
- Department of Polymer Science and Engineering
- Zhejiang University
- Hangzhou 310027
- China
| | - Zhengke Wang
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization
- Department of Polymer Science and Engineering
- Zhejiang University
- Hangzhou 310027
- China
| | - An Qin
- Department of Orthopedics
- Shanghai Key Laboratory of Orthopedic Implants
- Shanghai Ninth People's Hospital
- Shanghai Jiaotong University School of Medicine
- Shanghai
| | - Qiaoling Hu
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization
- Department of Polymer Science and Engineering
- Zhejiang University
- Hangzhou 310027
- China
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12
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Stepaniuk KS, Gingerich W. Evaluation of an Osseous Allograft Membrane for Guided Tissue Regeneration in the Dog. J Vet Dent 2015; 32:226-32. [DOI: 10.1177/089875641503200403] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Clinical application of a demineralized freeze-dried cortical bone membrane allograft (DFBMA) for treatment of intra(infra)bony periodontal pockets in dogs was evaluated. The mean pre-treatment periodontal probing depth equaled 7.2-mm. Post-treatment probing depths in all 11 cases were normal, with a mean periodontal probing gain of 5.4-mm. Guided tissue regeneration using a commercially available veterinary canine DFBMA and canine demineralized freeze-dried bone allograft (DFDBA) resulted in clinically significant periodontal attachment gains. The gain of new periodontal tissue attachment was statistically significant (P < 0.0001). The commercially available veterinary allograft products predictably increased new periodontal attachment without any identified membrane sequelae in these 11 cases.
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Affiliation(s)
- Kevin S. Stepaniuk
- From the University of Minnesota College of Veterinary Medicine, Clinical Science Department (Stepaniuk), 1365 Gortner Ave., St. Paul, MN 55108; and, South Florida Veterinary Dentistry and Oral Surgery (Gingerich), 28400 Old 41 Road, STE 1, Bonita Springs, FL 34135. Dr. Stepaniuk's curent address is Columbia River Veterinary Specialists, 6607 NE 84th Street Suite 109, Vancouver, WA 98665
| | - Wade Gingerich
- From the University of Minnesota College of Veterinary Medicine, Clinical Science Department (Stepaniuk), 1365 Gortner Ave., St. Paul, MN 55108; and, South Florida Veterinary Dentistry and Oral Surgery (Gingerich), 28400 Old 41 Road, STE 1, Bonita Springs, FL 34135. Dr. Stepaniuk's curent address is Columbia River Veterinary Specialists, 6607 NE 84th Street Suite 109, Vancouver, WA 98665
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13
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Tai HY, Fu E, Cheng LP, Don TM. Fabrication of asymmetric membranes from polyhydroxybutyrate and biphasic calcium phosphate/chitosan for guided bone regeneration. JOURNAL OF POLYMER RESEARCH 2014. [DOI: 10.1007/s10965-014-0421-8] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
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14
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Seok H, Lee SW, Kim SG, Seo DH, Kim HS, Kweon HY, Jo YY, Kang TY, Lee MJ, Chae WS. The Effect of Silk Membrane Plus 3% 4-hexylresorcinol on Guided Bone Regeneration in a Rabbit Calvarial Defect Model. ACTA ACUST UNITED AC 2013. [DOI: 10.7852/ijie.2013.27.1.209] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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15
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Rakhmatia YD, Ayukawa Y, Furuhashi A, Koyano K. Current barrier membranes: Titanium mesh and other membranes for guided bone regeneration in dental applications. J Prosthodont Res 2013; 57:3-14. [DOI: 10.1016/j.jpor.2012.12.001] [Citation(s) in RCA: 246] [Impact Index Per Article: 22.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2012] [Accepted: 12/18/2012] [Indexed: 10/27/2022]
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16
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Tai HY, Fu E, Don TM. Calcium phosphates synthesized by reverse emulsion method for the preparation of chitosan composite membranes. Carbohydr Polym 2012. [DOI: 10.1016/j.carbpol.2012.01.042] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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17
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Thoma DS, Dard MM, Hälg GA, Ramel CF, Hämmerle CHF, Jung RE. Evaluation of a biodegradable synthetic hydrogel used as a guided bone regeneration membrane: an experimental study in dogs. Clin Oral Implants Res 2011; 23:160-168. [PMID: 21692857 DOI: 10.1111/j.1600-0501.2011.02217.x] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
OBJECTIVES To test whether or not an experimental polyethylene glycol (PEG) membrane maintains the bone graft volume and contributes to the preservation of the ridge contour in comparison with a commercially available synthetic membrane. MATERIALS AND METHODS In 18 dogs, all mandibular premolars and the first molars were extracted. Ten weeks later, acute standardized defects were prepared. The defects of four dogs were randomly assigned to three modalities: (1) PEG plus deproteinized bovine bone mineral (DBBM) (PEG), (2) a resorbable glycolide trimethylene carbonate membrane plus DBBM (PGA-TMC), and (3) DBBM alone (DBBM). These dogs were then sacrificed for the baseline measurements. The remaining defects of 14 dogs were randomly assigned to (1) PEG plus DBBM, (2) PGA-TMC plus DBBM, (3) DBBM, and (4) empty defect. The dogs were sacrificed at baseline (n=4), 4 weeks (n=7), or at 16 weeks (n=7). Mixed model regressions and the non-parametric Brunner-Langer method were applied for statistical analysis. RESULTS At baseline, equal tissue augmentation was observed in all groups. At 4 and 16 weeks, the greatest augmented area fractions were calculated for PEG (103%; 107%, respectively), followed by PGA-TMC (98%; 91%), DBBM (85%; 78%), and empty (46%; 54%), being statistically significant different (P<0.001) between PEG and empty at 4 and 16 weeks, and PEG and DBBM at 16 weeks. The overall decrease (P≤0.01) in the amount of bone graft between baseline and 16 weeks was -14% (PEG), -22% (PGA-TMC), and -23% (DBBM). CONCLUSIONS The study demonstrates that the combination of the PEG membrane with DBBM maintains the bone graft volume over time better than controls. The PEG membrane with DBBM was also the most effective method to preserve the ridge contour.
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Affiliation(s)
- Daniel S Thoma
- Clinic of Fixed and Removable Prosthodontics and Dental Material Science, Center for Dental Medicine, Zurich, SwitzerlandInstitut Straumann AG, Basel, Switzerland
| | - Michel M Dard
- Clinic of Fixed and Removable Prosthodontics and Dental Material Science, Center for Dental Medicine, Zurich, SwitzerlandInstitut Straumann AG, Basel, Switzerland
| | - Gian-Andrea Hälg
- Clinic of Fixed and Removable Prosthodontics and Dental Material Science, Center for Dental Medicine, Zurich, SwitzerlandInstitut Straumann AG, Basel, Switzerland
| | - Christian F Ramel
- Clinic of Fixed and Removable Prosthodontics and Dental Material Science, Center for Dental Medicine, Zurich, SwitzerlandInstitut Straumann AG, Basel, Switzerland
| | - Christoph H F Hämmerle
- Clinic of Fixed and Removable Prosthodontics and Dental Material Science, Center for Dental Medicine, Zurich, SwitzerlandInstitut Straumann AG, Basel, Switzerland
| | - Ronald E Jung
- Clinic of Fixed and Removable Prosthodontics and Dental Material Science, Center for Dental Medicine, Zurich, SwitzerlandInstitut Straumann AG, Basel, Switzerland
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18
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Cai YZ, Wang LL, Cai HX, Qi YY, Zou XH, Ouyang HW. Electrospun nanofibrous matrix improves the regeneration of dense cortical bone. J Biomed Mater Res A 2010; 95:49-57. [DOI: 10.1002/jbm.a.32816] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
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19
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Liuyun J, Yubao L, Chengdong X. A novel composite membrane of chitosan-carboxymethyl cellulose polyelectrolyte complex membrane filled with nano-hydroxyapatite I. Preparation and properties. JOURNAL OF MATERIALS SCIENCE. MATERIALS IN MEDICINE 2009; 20:1645-1652. [PMID: 19301105 DOI: 10.1007/s10856-009-3720-6] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/10/2008] [Accepted: 02/17/2009] [Indexed: 05/27/2023]
Abstract
A novel tri-component composite membranes of chitosan/carboxymethyl cellulose (CS/CMC) polyelectrolyte complex membranes filled with different weight ratios of nano-hydroxyapatite (n-HA)(0, 20, 40 and 60 wt%), namely, n-HA/CS/CMC composite membrane, were prepared by self-assembly of static electricity. The structure and the properties of the composite membranes were investigated by Fourier transformed infrared spectroscopy(IR), X-ray diffraction(XRD), Scanning electron microscopy(SEM), mechanical performance measurement, swelling behavior test, and soaking behavior study in phosphate buffered saline (PBS) and simulate body fluid (SBF). The results showed that the n-HA/CS/CMC composite membrane was formed though superficial static electricity interaction among n-HA, CS and CMC. For the n-HA/CS/CMC composite membrane, the microstructure compatibility, mechanical property, swelling behavior, the degradation and bioactivity in vitro of the composite membrane were improved by the addition of n-HA, compared with CS/CMC polyelectrolyte complex membrane. Moreover, the n-HA/CS/CMC composite membrane with 40 wt% n-HA had the most highest mechanical property, which suggested that the novel n-HA/CS/CMC composite membrane with 40 wt% n-HA was more suitable to be used as guided bone tissue regeneration membrane than CS/CMC polyelectrolyte complex membrane.
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Affiliation(s)
- Jiang Liuyun
- Chengdu Institute of Organic Chemistry, Chinese Academy of Sciences, Chengdu, China.
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20
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Characterization of Hydrophilized PCL Electrospun Sheet as an Efective Guided Bone Regeneration Membrane. ACTA ACUST UNITED AC 2007. [DOI: 10.4028/www.scientific.net/kem.342-343.293] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Electrospinning is a fabrication process that can produce highly porous nano-scale fiber-based
matrices using an electrostatically driven jet of polymer solution. This method represents an attractive
approach for polymeric biomaterial processing which provides the membrane structure that may retain
mechanical strengths, flexibility, and high surface area. In this study, we prepared a guided bone
regeneration (GBR) membrane with selective permeability, hydrophilicity, good mechanical strength and
adhesiveness with bone using polycaprolactone (PCL) and Tween 80 by the electrospinning method. The
prepared PCL and PCL/Tween 80 electrospun sheets were characterized via morphology observation,
mechanical property, water absorbability, and model nutrient permeability. It was observed that the
PCL/Tween 80 (3 wt%) electrospun sheet have an effective permeation of nutrients as well as the good
mechanical strength to maintain a secluded space for the bone regeneration. From the results, the
hydrophilized PCL/Tween 80 (3 wt%) electrospun sheet seem to be a good candidate as a GBR
membrane.
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21
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Chen W, Yang S, Abe Y, Li M, Wang Y, Shao J, Li E, Li YP. Novel pycnodysostosis mouse model uncovers cathepsin K function as a potential regulator of osteoclast apoptosis and senescence. Hum Mol Genet 2007; 16:410-23. [PMID: 17210673 PMCID: PMC3578583 DOI: 10.1093/hmg/ddl474] [Citation(s) in RCA: 89] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Pycnodysostosis is a genetic bone disease featuring the unique bone homeostasis disorders of osteolysis and osteopetrosis in the same organism. The pathomechanism for pycnodysostosis has been largely unknown due to the unavailability of a pycnodysostosis mouse model with all the traits of the disease. We generated cathepsin K(-/-) mouse strains in the 129/Sv and C57BL/6J backgrounds and found that, only in the 129/Sv background, cathepsin K(-/-) mice exhibit many characteristics of the human pycnodysostosis-like phenotype. Our data indicated that 129/Sv cathepsin K(-/-) osteoclasts (OCs) lacked normal apoptosis and senescence and exhibited over-growth both in vitro and in vivo. These abnormalities resulted in an unusually high OC number, which is consistent with a recent case study of human pycnodysostosis. Our results show that cathepsin K function has different effects around the skeleton due to site-specific variations in bone homeostasis, such as phenotypes of osteopetrosis in tibiae and osteolysis in calvariae as a result of cathepsin K mutation. Our data demonstrated that the expression levels of p19, p53 and p21 were significantly reduced in 129/Sv cathepsin K(-/-) OCs and forced expression of cathepsin K in pre-OCs induced premature senescence and increased expression of p19, p53 and p21. This is the first evidence that cathepsin K plays a key role in OC apoptosis and senescence, revealing the importance of OC senescence in bone homeostasis. The finding of this novel cathepsin K function provides insight into the pathomechanism of pycnodysostosis and may provide new drug targets for diseases involved in OC-related abnormal bone homeostasis.
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Affiliation(s)
- Wei Chen
- Department of Cytokine Biology, The Forsyth Institute & Harvard School of Dental Medicine, 140 The Fenway, Boston, MA 02115, USA
- Harvard-Forsyth Department of Oral Biology, The Forsyth Institute & Harvard School of Dental Medicine, 140 The Fenway, Boston, MA 02115, USA
| | - Shuying Yang
- Department of Cytokine Biology, The Forsyth Institute & Harvard School of Dental Medicine, 140 The Fenway, Boston, MA 02115, USA
- Harvard-Forsyth Department of Oral Biology, The Forsyth Institute & Harvard School of Dental Medicine, 140 The Fenway, Boston, MA 02115, USA
| | - Yoke Abe
- Department of Cytokine Biology, The Forsyth Institute & Harvard School of Dental Medicine, 140 The Fenway, Boston, MA 02115, USA
| | - Ming Li
- Department of Cytokine Biology, The Forsyth Institute & Harvard School of Dental Medicine, 140 The Fenway, Boston, MA 02115, USA
| | - Yucheng Wang
- Department of Cytokine Biology, The Forsyth Institute & Harvard School of Dental Medicine, 140 The Fenway, Boston, MA 02115, USA
| | - Jianzhong Shao
- Department of Cytokine Biology, The Forsyth Institute & Harvard School of Dental Medicine, 140 The Fenway, Boston, MA 02115, USA
- Life Science College, Zhejiang University, Hangzhou, China
| | - En Li
- Cardiovascular Research Center, Massachusetts General Hospital, Department of Medicine, Harvard Medical School, Charlestown, MA 02129, USA
| | - Yi-Ping Li
- Department of Cytokine Biology, The Forsyth Institute & Harvard School of Dental Medicine, 140 The Fenway, Boston, MA 02115, USA
- Harvard-Forsyth Department of Oral Biology, The Forsyth Institute & Harvard School of Dental Medicine, 140 The Fenway, Boston, MA 02115, USA
- To whom correspondence should be addressed: Tel: +1 6178928260; Fax: +1 6172624021;
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Fujihara K, Kotaki M, Ramakrishna S. Guided bone regeneration membrane made of polycaprolactone/calcium carbonate composite nano-fibers. Biomaterials 2005; 26:4139-47. [PMID: 15664641 DOI: 10.1016/j.biomaterials.2004.09.014] [Citation(s) in RCA: 363] [Impact Index Per Article: 19.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2004] [Accepted: 09/10/2004] [Indexed: 11/23/2022]
Abstract
In this study, new type of guided bone regeneration (GBR) membranes were fabricated by polycaprolactone (PCL)/CaCO3 composite nano-fibers with two different PCL to calcium carbonate (CaCO3) ratios (PCL:CaCO3=75:25 wt% and 25:75 wt%). The composite nano-fibers were successfully fabricated by electrospinning method and CaCO3 nano-particles on the surface of nano-fibers were confirmed by energy disperse X-ray (EDX) analysis. In order to achieve mechanical stability of GBR membranes, composite nano-fibers were spun on PCL nano-fibrous membranes which has high tensile strength, i.e., the membranes consist of two layers of functional layer (PCL/CaCO3) and mechanical support layer (PCL). Two different GBR membranes were prepared, i.e., GBR membrane (A)=PCL:CaCO3=75:25 wt%+PCL, GBR membrane (B)=PCL:CaCO3=25:75 wt%+PCL. Osteoblast attachment and proliferation of GBR membrane (A) and (B) were discussed by MTS assay and scanning electron microscope (SEM) observation. As a result, absorbance intensity of GBR membrane (A) and tissue culture polystyrene (TCPS) increased during 5 days seeding time. In contrast, although absorbance intensity of GBR membrane (B) also increased, its value was lower than membrane (A). SEM observation showed that no significant difference in osteoblast attachment manner was seen on GBR membrane (A) and (B). Because of good cell attachment manner, there is a potential to utilize PCL/CaCO3 composite nano-fibers to GBR membranes.
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Affiliation(s)
- K Fujihara
- Division of Bioengineering, National University of Singapore, 9 Engineering Drive 1, Singapore 117576.
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23
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Puumanen K, Kellomäki M, Ritsilä V, Böhling T, Törmälä P, Waris T, Ashammakhi N. A novel bioabsorbable composite membrane of Polyactive® 70/30 and bioactive glass number 13-93 in repair of experimental maxillary alveolar cleft defects. J Biomed Mater Res B Appl Biomater 2005; 75:25-33. [PMID: 16015617 DOI: 10.1002/jbm.b.30218] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
A novel bioabsorbable composite membrane of polyethylene oxide terephthalate and polybutylene terephthalate copolymer (Polyactive 70/30) combined with bioactive glass No. 13--93 was tested in the repair of experimental maxillary alveolar cleft defects. In this pilot study, the possible ability of the membrane to promote bone formation by guided tissue regeneration was investigated. Standard alveolar defects were made bilaterally in the maxilla of 12 growing rabbits and were filled with autogenous bone grafts. The test defect was covered with the composite membrane and the other defect was left uncovered to serve as a control. The follow-up time was 10 weeks. Radiological, histological, and histomorphometric evaluations were performed. Radiologically, no statistically significant differences between test and control defects at 10 weeks were found. Histologically, the membrane enhanced osteogenic activity locally at the membrane-bone interface. Swelling of the membrane was observed. Histomorphometrically, no significant promotion of bone formation by the membrane was observed. The composite membrane was found to be biocompatible and surgically easy to use, but its osteopromotive effect was limited in this experimental cleft model. Further studies are necessary to assess its suitability for reconstructive surgical applications.
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Affiliation(s)
- K Puumanen
- Department of Plastic Surgery, Helsinki University Hospital, Helsinki, Finland.
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