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Sadeghian Dehkord E, De Carvalho B, Ernst M, Albert A, Lambert F, Geris L. Influence of physicochemical characteristics of calcium phosphate-based biomaterials in cranio-maxillofacial bone regeneration. A systematic literature review and meta-analysis of preclinical models. Mater Today Bio 2024; 26:101100. [PMID: 38854953 PMCID: PMC11157282 DOI: 10.1016/j.mtbio.2024.101100] [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: 03/21/2024] [Revised: 05/20/2024] [Accepted: 05/21/2024] [Indexed: 06/11/2024] Open
Abstract
Objectives Calcium phosphate-based biomaterials (CaP) are the most widely used biomaterials to enhance bone regeneration in the treatment of alveolar bone deficiencies, cranio-maxillofacial and periodontal infrabony defects, with positive preclinical and clinical results reported. This systematic review aimed to assess the influence of the physicochemical properties of CaP biomaterials on the performance of bone regeneration in preclinical animal models. Methods The PubMed, EMBASE and Web of Science databases were searched to retrieve the preclinical studies investigating physicochemical characteristics of CaP biomaterials. The studies were screened for inclusion based on intervention (physicochemical characterization and in vivo evaluation) and reported measurable outcomes. Results A total of 1532 articles were retrieved and 58 studies were ultimately included in the systematic review. A wide range of physicochemical characteristics of CaP biomaterials was found to be assessed in the included studies. Despite a high degree of heterogeneity, the meta-analysis was performed on 39 studies and evidenced significant effects of biomaterial characteristics on their bone regeneration outcomes. The study specifically showed that macropore size, Ca/P ratio, and compressive strength exerted significant influence on the formation of newly regenerated bone. Moreover, factors such as particle size, Ca/P ratio, and surface area were found to impact bone-to-material contact during the regeneration process. In terms of biodegradability, the amount of residual graft was determined by macropore size, particle size, and compressive strength. Conclusion The systematic review showed that the physicochemical characteristics of CaP biomaterials are highly determining for scaffold's performance, emphasizing its usefulness in designing the next generation of bone scaffolds to target higher rates of regeneration.
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Affiliation(s)
- Ehsan Sadeghian Dehkord
- GIGA In Silico Medicine, Biomechanics Research Unit (Biomech), University of Liège, Belgium
- Prometheus, The R&D Division for Skeletal Tissue Engineering, KU Leuven, Belgium
| | - Bruno De Carvalho
- Department of Periodontology, Oral-Dental and Implant Surgery, CHU of Liège, Belgium
- Dental Biomaterials Research Unit (d-BRU), University of Liège, Belgium
| | - Marie Ernst
- Biostatistics and Research Method Center (B-STAT), CHU of Liège and University of Liège, Belgium
| | - Adelin Albert
- Biostatistics and Research Method Center (B-STAT), CHU of Liège and University of Liège, Belgium
- Department of Public Health Sciences, University of Liège, Belgium
| | - France Lambert
- Department of Periodontology, Oral-Dental and Implant Surgery, CHU of Liège, Belgium
- Dental Biomaterials Research Unit (d-BRU), University of Liège, Belgium
| | - Liesbet Geris
- GIGA In Silico Medicine, Biomechanics Research Unit (Biomech), University of Liège, Belgium
- Prometheus, The R&D Division for Skeletal Tissue Engineering, KU Leuven, Belgium
- Department of Mechanical Engineering, Biomechanics Section (BMe), KU Leuven, Belgium
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Chen Z, Gan L, Chen X, Zheng J, Shi S, Wu L, Cao Y. LncRNA HOTAIRM1 promotes dental follicle stem cell-mediated bone regeneration by regulating HIF-1α/KDM6/EZH2/H3K27me3 axis. J Cell Physiol 2023. [PMID: 37120836 DOI: 10.1002/jcp.31028] [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: 10/03/2022] [Revised: 03/21/2023] [Accepted: 04/12/2023] [Indexed: 05/02/2023]
Abstract
Large bone defect reconstruction undergoes hypoxia and remains a major practical challenge. Bone tissue engineering with a more promising stem cell source facilitates the development of better therapeutic outcomes. Human dental follicle stem cells (hDFSCs) with superior multipotency, osteogenic capacity, and accessibility have been proven a promising cell source for bone regeneration. We previously identified a novel long noncoding RNA (lncRNA), HOTAIRM1, to be highly expressed in hDFSCs. Here we found that HOTAIRM1 overexpressed hDFSCs promoted bone regeneration in rat critical-size calvarial defect model. Mechanically, HOTAIRM1 was induced in hDFSCs under hypoxic conditions and activated HIF-1α. RNA-sequencing analysis indicated that HOTAIRM1 upregulated oxygen-sensing histone demethylases KDM6A/B and suppressed methyltransferase EZH2 via targeting HIF-1α. The osteogenic differentiation of hDFSCs was accompanied with demethylation of H3K27, and HOTAIRM1 overexpression decreased the distribution of H3K27me3 in osteogenic genes, including ALP, M-CSF, Wnt-3a, Wnt-5a, Wnt-7a, and β-catenin, thus promoted their transcription. Our study provided evidence that HOTAIRM1 upregulated KDM6A/B and inhibited EZH2 in a HIF-1α dependent manner to enhance the osteogenesis of hDFSCs. HOTAIRM1-mediated hDFSCs may serve as a promising therapeutic approach to promote bone regeneration in clinical practice.
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Affiliation(s)
- Zhengyuan Chen
- Hospital of Stomatology, Guanghua School of Stomatology, Sun Yat-sen University, Guangzhou, Guangdong, China
- Guangdong Provincial Key Laboratory of Stomatology, Sun Yat-sen University, Guangzhou, Guangdong, China
| | - Liyi Gan
- Hospital of Stomatology, Guanghua School of Stomatology, Sun Yat-sen University, Guangzhou, Guangdong, China
- Guangdong Provincial Key Laboratory of Stomatology, Sun Yat-sen University, Guangzhou, Guangdong, China
| | - Xin Chen
- Hospital of Stomatology, Guanghua School of Stomatology, Sun Yat-sen University, Guangzhou, Guangdong, China
- Guangdong Provincial Key Laboratory of Stomatology, Sun Yat-sen University, Guangzhou, Guangdong, China
| | - Jinxuan Zheng
- Hospital of Stomatology, Guanghua School of Stomatology, Sun Yat-sen University, Guangzhou, Guangdong, China
- Guangdong Provincial Key Laboratory of Stomatology, Sun Yat-sen University, Guangzhou, Guangdong, China
| | - Songtao Shi
- Hospital of Stomatology, Guanghua School of Stomatology, Sun Yat-sen University, Guangzhou, Guangdong, China
- Guangdong Provincial Key Laboratory of Stomatology, Sun Yat-sen University, Guangzhou, Guangdong, China
| | - Liping Wu
- Hospital of Stomatology, Guanghua School of Stomatology, Sun Yat-sen University, Guangzhou, Guangdong, China
- Guangdong Provincial Key Laboratory of Stomatology, Sun Yat-sen University, Guangzhou, Guangdong, China
| | - Yang Cao
- Hospital of Stomatology, Guanghua School of Stomatology, Sun Yat-sen University, Guangzhou, Guangdong, China
- Guangdong Provincial Key Laboratory of Stomatology, Sun Yat-sen University, Guangzhou, Guangdong, China
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Saggioro C, Sartoretto S, Duarte I, Alves A, Barreto H, Resende R, Calasans-Maia MD, Calasans-Maia J. IN VIVO EVALUATION OF BOVINE XENOGRAFT ASSOCIATED WITH OXYGEN THERAPY IN ALVEOLAR BONE REPAIR. J ORAL IMPLANTOL 2020; 47:465-471. [PMID: 33270849 DOI: 10.1563/aaid-joi-d-20-00110] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
In order to preserve alveolar bone thickness and width after extraction, clinical strategies have been adopted to reduce or eliminate the need for future surgical interventions to increase the alveolar ridge. The use of xenogeneic biomaterials has been increasing for such application. The association of bone substitutes with active oxygen-based materials, which is essential in the wound healing process, could accelerate the bone repair, optimizing the maintenance of alveolar architecture after extraction. However, the truth of this hypothesis is not clear. The present study aimed to compare the biological response to inorganic bovine bone graft Bonefill® (BF), associated or not with active oxygen-based gel Oral gel Blue ® m (BF+BM), in alveolar bone repair. Twenty female Wistar rats were randomly distributed, the left upper central incisor was extracted and the dental sockets were filled with BF in the control group (n=10), and with BF+BM in the experimental group (n=10). After 7- and 42-days' post implantation (n=5), the animals were euthanized, and the samples were processed for descriptive histological and histomorphometric evaluations. The results showed no significant difference between the groups (p>0.05). Both groups presented a time-dependent increase of new formed bone and biosorption biomaterial (p=0.0001). While the biomaterial analyzed was considered compatible and osteoconductive, the association with Blue ® m gel did not improve or interfere with the bone repair after the experimental periods.
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Affiliation(s)
- Camila Saggioro
- DDS, MSc. Department and Clinical Research Laboratory in Dentistry, Universidade Federal Fluminense, Niteroi, RJ, Brazil
| | - Suelen Sartoretto
- DDS, MSc, Ph.D. Oral Surgery Department, Universidade Veiga de Almeida, Rio de Janeiro, RJ, Brazil; Oral Surgery Department, Universidade Iguaçu, Nova Iguaçu, RJ, Brazil
| | - Isabelle Duarte
- DDS. Graduate Program in Dentistry, Universidade Veiga de Almeida, Rio de Janeiro, RJ, Brazil
| | - Adriana Alves
- DDS, MSc, Ph.D. Oral Diagnosis Department, Universidade Federal Fluminense, Niteroi, RJ, Brazil
| | | | - Rodrigo Resende
- Oral Surgery Department, Universidade Federal Fluminense, Niteroi, RJ, Brazil and Oral Surgery Department, Universidade Iguaçu, Nova Iguaçu, RJ, Brazil
| | - Monica Diuana Calasans-Maia
- Fluminense Federal University Professor Oral Surgery Rua São Paulo, 28 BRAZIL Niteroi Rio de Janeiro 24020-150 55 21 25566074 55 21 2551 2464 Full Professor, Dentistry School, Oral Surgery Department, Fluminense Federal University
| | - Jose Calasans-Maia
- Orthodontic Department and Clinical Research Laboratory in Dentistry, Universidade Federal Fluminense, Niteroi, RJ, Brazil
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Kiyochi Junior HDJ, Candido AG, Bonadio TGM, da Cruz JA, Baesso ML, Weinand WR, Hernandes L. In vivo evaluation of interactions between biphasic calcium phosphate (BCP)-niobium pentoxide (Nb 2O 5) nanocomposite and tissues using a rat critical-size calvarial defect model. JOURNAL OF MATERIALS SCIENCE. MATERIALS IN MEDICINE 2020; 31:71. [PMID: 32712717 DOI: 10.1007/s10856-020-06414-5] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/19/2019] [Accepted: 07/15/2020] [Indexed: 06/11/2023]
Abstract
Natural or synthetic biomaterials are increasingly being used to support bone tissue repair or substitution. The combination of natural calcium phosphates with biocompatible alloys is an important route towards the development of new biomaterials with bioperformance and mechanical responses to mimic those of human bones. This article evaluated the structural, physical, mechanical and biological properties of a new mechanical improved nanocomposite elaborated by association of fish biphasic calcium phosphate (BCP) and niobium pentoxide (Nb2O5). The nanocomposite (Nb-BCP) and the pure BCP, used as a positive control, were obtained by powder metallurgy. The density, porosity and microhardness were measured. The structural analysis was determined by X-ray diffraction (XRD) and the biological properties were studied in histological sections of critical size calvaria defects in rats, 7, 15, 30, 45 and 60 days after implantation of disks of both materials. Morphological description was made after scanning electron microscopy (SEM) and optical microscopy analysis. After sintering, the Nb-BCP nanocomposite presented four crystalline phases: 34.36% calcium niobate (CaNb2O6), 21.68% phosphorus niobium oxide (PNb9O25), 42.55% β-tricalcium phosphate (Ca3(PO4)2) and 1.31% of niobium pentoxide (Nb2O5) and exhibited increases of 17% in density, 66% in Vickers microhardness and 180% in compressive strength compared to pure BCP. In vivo study, showed biocompatibility, bioactivity and osteoconductivity similar to pure BCP. SEM showed the formation of globular accretions over the implanted nanocomposites, representing one of the stages of bone mineralization. In conclusion, the BCP and Nb2O5 formed a nanocomposite exhibiting characteristics that are desirable for a biomaterial, such as bioperformance, higher β-TCP percentage and improved physical and mechanical properties compared to pure BCP. These characteristics demonstrate the promise of this material for supporting bone regeneration.
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Affiliation(s)
| | - Aline Gabriela Candido
- Morphologycal Sciences Department, Universidade Estadual de Maringá, Maringá, Paraná, Brazil
| | | | - José Adauto da Cruz
- Physics Department, Universidade Estadual de Maringá, Maringá, Paraná, Brazil
| | | | | | - Luzmarina Hernandes
- Morphologycal Sciences Department, Universidade Estadual de Maringá, Maringá, Paraná, Brazil.
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Bacterial Cellulose-Modified Polyhydroxyalkanoates Scaffolds Promotes Bone Formation in Critical Size Calvarial Defects in Mice. MATERIALS 2020; 13:ma13061433. [PMID: 32245214 PMCID: PMC7142421 DOI: 10.3390/ma13061433] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/05/2020] [Revised: 03/11/2020] [Accepted: 03/16/2020] [Indexed: 11/17/2022]
Abstract
Bone regeneration is a claim challenge in addressing bone defects with large tissue deficits, that involves bone grafts to support the activity. In vitro biocompatibility of the bacterial cellulose-modified polyhydroxyalkanoates (PHB/BC) scaffolds and its osteogenic potential in critical-size mouse calvaria defects had been investigated. Bone promotion and mineralization were analyzed by biochemistry, histology/histomorphometry, X-ray analysis and immunofluorescence for highlighting osteogenesis markers. In summary, our results showed that PHB/BC scaffolds are able to support 3T3-L1 preadipocytes proliferation and had a positive effect on in vivo osteoblast differentiation, consequently inducing new bone formation after 20 weeks post-implantation. Thus, the newly developed PHB/BC scaffolds could turn out to be suitable biomaterials for the bone tissue engineering purpose.
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Bayani M, Torabi S, Shahnaz A, Pourali M. Main properties of nanocrystalline hydroxyapatite as a bone graft material in treatment of periodontal defects. A review of literature. BIOTECHNOL BIOTEC EQ 2017. [DOI: 10.1080/13102818.2017.1281760] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023] Open
Affiliation(s)
- Mojtaba Bayani
- Periodontics Department, Dental Faculty, Arak University of Medical Sciences, Arak, Iran
| | - Sepehr Torabi
- Periodontics Department, Dental Faculty, Qazvin University of Medical Sciences, Qazvin, Iran
| | - Aysan Shahnaz
- Periodontics Department, Dental Faculty, Qom University of Medical Science, Qom, Iran
| | - Mohammad Pourali
- Periodontics Department, Dental Faculty, Qom University of Medical Sciences, Qom, Iran
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Bone Regeneration Using a Mixture of Silicon-Substituted Coral HA and β-TCP in a Rat Calvarial Bone Defect Model. MATERIALS 2016; 9:ma9020097. [PMID: 28787903 PMCID: PMC5456508 DOI: 10.3390/ma9020097] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/09/2015] [Accepted: 02/03/2016] [Indexed: 12/18/2022]
Abstract
The demand of bone graft materials has been increasing. Among various origins of bone graft materials, natural coral composed of up to 99% calcium carbonate was chosen and converted into hydroxyapatite (HA); silicon was then substituted into the HA. Then, the Si-HA was mixed with β-tricalcium phosphate (TCP) in the ratios 100:0 (S100T0), 70:30 (S70T30), 60:40 (S60T40), and 50:50 (S50T50). The materials were implanted for four and eight weeks in a rat calvarial bone defect model (8 mm). The MBCPTM (HA:β-TCP = 60:40, Biomatalante, Vigneux de Bretagne, France) was used as a control. After euthanasia, the bone tissue was analyzed by making histological slides. From the results, S60T40 showed the fastest bone regeneration in four weeks (p < 0.05). In addition, S60T40, S50T50, and MBCPTM showed significant new bone formation in eight weeks (p < 0.05). In conclusion, Si-HA/TCP showed potential as a bone graft material.
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Costa NMF, Yassuda DH, Sader MS, Fernandes GVO, Soares GDA, Granjeiro JM. Osteogenic effect of tricalcium phosphate substituted by magnesium associated with Genderm® membrane in rat calvarial defect model. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2015; 61:63-71. [PMID: 26838825 DOI: 10.1016/j.msec.2015.12.003] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/03/2015] [Revised: 11/19/2015] [Accepted: 12/03/2015] [Indexed: 11/30/2022]
Abstract
Beta-tricalcium phosphate (β-TCP) is one of the most widely employed bioresorbable materials for bone repair since it shows excellent biological compatibility, osteoconductivity and resorbability. The incorporation of divalent cations such as magnesium onto the β-TCP structure (β-TCMP) may improve the biological response to the material through the release of bioactive ions. The objective of this study was to evaluate, on a rat calvarial critical size grafting model, the bone regeneration process using β-TCP and β-TMCP granules by histomorphometric analysis. Results demonstrated that six months after bone grafting, the association of GBR (guided bone regeneration) using a membrane (GenDerm®) and granules of β-TCP and β-TCMP significantly improves bone repair in the treatment of critical-size defect in rat skulls, in comparison to untreated defects or GBR alone, leading to a bone level approximately four to five-fold greater than in the blood clot group. The β-TCMP+GenDerm® membrane group presented 40.5% of the defect area filled by newly-formed bone, even at the central part of the defect, rather than only at the border, as seen in the other experimental groups.
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Affiliation(s)
- Neusa M F Costa
- Department of Metallurgical and Materials Engineering, Federal University of Rio de Janeiro/COPPE, Rio de Janeiro, RJ 21945-970, Brazil.
| | - Debora H Yassuda
- Department of Metallurgical and Materials Engineering, Federal University of Rio de Janeiro/COPPE, Rio de Janeiro, RJ 21945-970, Brazil
| | - Marcia S Sader
- Department of Metallurgical and Materials Engineering, Federal University of Rio de Janeiro/COPPE, Rio de Janeiro, RJ 21945-970, Brazil
| | - Gustavo V O Fernandes
- Post-graduation Program in Dentistry, Faculty of Odontology, Fluminense Federal University, Niteroi, RJ 24020-150, Brazil
| | - Glória D A Soares
- Department of Metallurgical and Materials Engineering, Federal University of Rio de Janeiro/COPPE, Rio de Janeiro, RJ 21945-970, Brazil
| | - José M Granjeiro
- Cell Therapy Center, Clinical Research Unit, Fluminense Federal University, Niteroi, RJ 24030-210, Brazil; Bioengineering Program, National Institute of Metrology, Quality and Technology (INMETRO), Duque de Caxias, RJ 25250-020, Brazil
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Silva L, Kim S, Luczyszyn S, Papalexiou V, Giovanini A, Almeida L, Tramontina V. Histological and immunohistochemical evaluation of biphasic calcium phosphate and a mineral trioxide aggregate for bone healing in rat calvaria. Int J Oral Maxillofac Surg 2015; 44:535-42. [DOI: 10.1016/j.ijom.2014.10.018] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2013] [Revised: 07/31/2014] [Accepted: 10/03/2014] [Indexed: 11/30/2022]
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Lee EU, Kim DJ, Lim HC, Lee JS, Jung UW, Choi SH. Comparative evaluation of biphasic calcium phosphate and biphasic calcium phosphate collagen composite on osteoconductive potency in rabbit calvarial defect. Biomater Res 2015; 19:1. [PMID: 26331072 PMCID: PMC4552310 DOI: 10.1186/s40824-014-0026-7] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2014] [Accepted: 12/29/2014] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND The aim of this study was to determine the osteoconductivity of biphasic calcium phosphate collagen composite (BCPC) in rabbit calvarial defect model by comparing with biphasic calcium phosphate (BCP). Four 8 mm diameter bicortical calvarial defects were made in ten rabbits. Each of the defects was randomly assigned and filled with 1) collagen sponge, 2) BCP, 3) BCPC, and 4) nothing as control. The animals were sacrificed at either 2 weeks (n = 5) or 8 weeks (n = 5) healing period. RESULTS All groups showed wedge shaped new bone formation limited to the area of the defect margin at both healing periods. The amounts of new bone and defect closure were similar among all groups. In the control and collagen sponge group, the center of the defect was depressed by surrounding tissues. In contrast, in BCP and BCPC group, the center of the defect did not depressed and the grafted materials maintained the space. And the augmented area was significantly higher in BCP and BCPC group compared to the control and collagen sponge group at both healing periods (p < 0.05). CONCLUSIONS The BCPC and BCP demonstrated proper space maintaining capacity and osteoconductive property, suggesting BCPC can be efficiently utilized in various clinical situations.
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Affiliation(s)
- Eun-Ung Lee
- Department of Periodontology, Research Institute for Periodontal Regeneration, College of Dentistry, Yonsei University, 50 Yonsei-ro, Seodaemun-gu, Seoul South Korea
| | - Dong-Ju Kim
- Department of Periodontology, Research Institute for Periodontal Regeneration, College of Dentistry, Yonsei University, 50 Yonsei-ro, Seodaemun-gu, Seoul South Korea
| | - Hyun-Chang Lim
- Department of Periodontology, Research Institute for Periodontal Regeneration, College of Dentistry, Yonsei University, 50 Yonsei-ro, Seodaemun-gu, Seoul South Korea
| | - Jung-Seok Lee
- Department of Periodontology, Research Institute for Periodontal Regeneration, College of Dentistry, Yonsei University, 50 Yonsei-ro, Seodaemun-gu, Seoul South Korea
| | - Ui-Won Jung
- Department of Periodontology, Research Institute for Periodontal Regeneration, College of Dentistry, Yonsei University, 50 Yonsei-ro, Seodaemun-gu, Seoul South Korea
| | - Seong-Ho Choi
- Department of Periodontology, Research Institute for Periodontal Regeneration, College of Dentistry, Yonsei University, 50 Yonsei-ro, Seodaemun-gu, Seoul South Korea
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Bansal R, Patil S, Chaubey KK, Thakur RK, Goyel P. Clinical evaluation of hydroxyapatite and β-tricalcium phosphate composite graft in the treatment of intrabony periodontal defect: A clinico-radiographic study. J Indian Soc Periodontol 2014; 18:610-7. [PMID: 25425823 PMCID: PMC4239751 DOI: 10.4103/0972-124x.142455] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2013] [Accepted: 02/10/2014] [Indexed: 11/12/2022] Open
Abstract
Background and Objective: Hydroxyapatite (HA) and β-tricalcium phosphate (β-TCP) grafts have shown to be effective in promoting the clinical signs of periodontal regeneration in intrabony defects. The aim of our study was to clinically and radiographically evaluate the efficacy of HA and β-TCP composite bone graft material in the treatment of intrabony three-wall defect. Materials and Methods: Twenty patients participated in this study. Interproximal bony defects were surgically treated with a combination of HA–βTCP (biphasic calcium phosphate). Changes in clinical parameters such as gingival status, probing pocket depth, clinical attachment, and radiographic estimation of the amount of bone fill were evaluated after 6 months postoperatively. Statistical Analysis Used: Student's “t” test. Results: This treatment modality resulted in significant pocket depth reduction and clinical attachment gain which were observed to be 2.938 mm (47.04%) and 3.188 mm (29.09%), respectively. The defect fill as seen radiographically was 3.204 mm (63.195%). All the differences were highly significant and in favor of postoperative group. Conclusion: The results of this study suggest that HA–βTCP (biphasic calcium phosphate) provides an added regenerative effect in promoting the clinical resolution of intrabony three-wall defects in patients with periodontitis.
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Affiliation(s)
- Rajat Bansal
- Department of Periodontics, Kothiwal Dental College and Research Centre, Moradabad, Uttar Pradesh, India
| | - Sudhir Patil
- Department of Periodontics, Kothiwal Dental College and Research Centre, Moradabad, Uttar Pradesh, India
| | - Krishna Kumar Chaubey
- Department of Periodontics, Kothiwal Dental College and Research Centre, Moradabad, Uttar Pradesh, India
| | - Rajesh Kumar Thakur
- Department of Periodontics, Kothiwal Dental College and Research Centre, Moradabad, Uttar Pradesh, India
| | - Purnita Goyel
- Department of Periodontics, Kothiwal Dental College and Research Centre, Moradabad, Uttar Pradesh, India
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Jain R, Kaur H, Jain S, Kapoor D, Nanda T, Jain M. Comparison of Nano-Sized Hydroxyapatite and β-Tricalcium Phosphate in the Treatment of Human Periodontal Intrabony Defects. J Clin Diagn Res 2014; 8:ZC74-8. [PMID: 25478453 DOI: 10.7860/jcdr/2014/9535.5047] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2014] [Accepted: 08/08/2014] [Indexed: 11/24/2022]
Abstract
BACKGROUND Since the advent of nanotechnology, various materials have been introduced for the treatment of the bone defects which have shown promising results. AIM The purpose of this study was to compare the effect of nano-sized Hydroxyapatite (NHA) and β-Tricalcium Phosphate (β-TCP) in the treatment of human periodontal defects. MATERIALS AND METHODS Tweleve patients with a total of 24 sites which were almost identical as determined clinically and radiographically were selected for the study. The selected sites were treated with access flap surgery were divided into two groups: Group I was treated with NHA and Group II treated with β-TCP. Following clinical and radiographic parameters were recorded at baseline, 3 months and 6 months post operatively: 1) Probing pocket depth (PPD); 2)Clinical attachment level (CAL); 3) Gingival recession (GR); 4) Radiographic Defect Depth. RESULTS Groups showed statistically significant improvements in soft and hard tissue parameters after 3 months and 6 months. Greater reduction in PPD, gain in CAL and Radiographic Defect Fill (RDF) was seen in Group I after three months whereas after six months were no statistically significant difference was seen with regard to soft and hard tissue measurements. CONCLUSION Within limits of the study, both NHA and β-TCP have proved to be beneficial in the management of periodontal defects. Treatment of intrabony periodontal defects with NHA leads to significant improvement in early clinical and radiographic outcomes as compared to β-TCP.
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Affiliation(s)
- Rohit Jain
- Senior Lecturer, Department of Periodontics, Desh Bhagat Dental College and Hospital , KK Road, Muktsar, Punjab, India
| | - Harjit Kaur
- Professor and Head, Department of Periodontics, Guru Nanak Dev Dental College and Research Institute , Patiala-Bathinda Highway, Sunam, Punjab, India
| | - Sanjiv Jain
- Professor-Department of Periodontics, Guru Nanak Dev Dental College and Research Institute , Patiala-Bathinda Highway, Sunam, Punjab, India
| | - Diljit Kapoor
- Professor and Head, Department of Periodontics, Gian Sagar Dental College and Hospital , Patiala-Zirkpur Highway, Banur, Punjab, India
| | - Tarun Nanda
- Demonstrator, Department of Periodontics, Post Graduate Institute of Dental Sciences , Rohtak, Haryana, India
| | - Megha Jain
- Lecturer, Department of Periodontics, Desh Bhagat Dental College and Hospital , KK Road, Muktsar, Punjab, India
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Sang Cho J, Um SH, Su Yoo D, Chung YC, Hye Chung S, Lee JC, Rhee SH. Enhanced osteoconductivity of sodium-substituted hydroxyapatite by system instability. J Biomed Mater Res B Appl Biomater 2013; 102:1046-62. [DOI: 10.1002/jbm.b.33087] [Citation(s) in RCA: 53] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2013] [Revised: 10/21/2013] [Accepted: 11/16/2013] [Indexed: 11/11/2022]
Affiliation(s)
- Jung Sang Cho
- Interdisciplinary Program of Bioengineering; College of Engineering, Seoul National University; Seoul 152-742 Korea
| | - Seung-Hoon Um
- Department of Dental Biomaterials Science; Dental Research Institute and BK21 Plus; School of Dentistry; Seoul National University, Jongno; Seoul 110-749 Korea
| | - Dong Su Yoo
- Department of Materials Science and Engineering; Hanyang University; Seoul 133-791 Korea
| | - Yong-Chae Chung
- Department of Materials Science and Engineering; Hanyang University; Seoul 133-791 Korea
| | - Shin Hye Chung
- Department of Dental Biomaterials Science; Dental Research Institute and BK21 Plus; School of Dentistry; Seoul National University, Jongno; Seoul 110-749 Korea
| | - Jeong-Cheol Lee
- Department of Dental Biomaterials Science; Dental Research Institute and BK21 Plus; School of Dentistry; Seoul National University, Jongno; Seoul 110-749 Korea
| | - Sang-Hoon Rhee
- Interdisciplinary Program of Bioengineering; College of Engineering, Seoul National University; Seoul 152-742 Korea
- Department of Dental Biomaterials Science; Dental Research Institute and BK21 Plus; School of Dentistry; Seoul National University, Jongno; Seoul 110-749 Korea
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14
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Choi Y, Lee JS, Kim YJ, Kim MS, Choi SH, Cho KS, Jung UW. Recombinant human bone morphogenetic protein-2 stimulates the osteogenic potential of the Schneiderian membrane: a histometric analysis in rabbits. Tissue Eng Part A 2013; 19:1994-2004. [PMID: 23544996 DOI: 10.1089/ten.tea.2012.0724] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
This study evaluated the osteoinductive effect of the recombinant human bone morphogenetic protein-2 (rhBMP-2)-coated biphasic calcium phosphate (BCP) carrier system on the grafted sinus area, including surrounding tissues and the Schneiderian membrane. A total of 18 male rabbits were used in this study; two for in vitro and 16 for in vivo experiments. Schneiderian membranes taken from two animals were cultured with or without rhBMP-2, and quantitative reverse transcriptase-polymerase chain reaction analysis was performed. Both maxillary sinuses in each of the 16 animals were used to compare the in vivo effects of rhBMP-2-coated BCP (experimental group) and BCP alone (control group). In each animal, rhBMP-2-coated BCP was grafted into one of the maxillary sinuses, and the same amount of BCP alone was grafted into the contralateral site in random order. Radiologic and histometric analyses were performed at 2 and 8 weeks after surgery. After 2 days of culturing with or without rhBMP-2, a significant increase in the expression of early osteoblasts (RUNX2, type I collagen, alkaline phosphatase, and osteopontin) could be observed. Different histologic healing patterns were observed in experimental and control sites: newly formed bone lining the reflected sinus membrane without bone formation was observed at the central areas of experimental sites (window=0.06%; center=0%; membrane=20.86% of new bone), whereas evenly distributed new bone formation was observed at the control sites (window=7.27%; center=7.41%; membrane=15.58% of new bone).The augmented volume was well maintained at both the experimental and control sites during the experimental period, but at 2 weeks, the augmented volume was greater at the experimental sites than at the control sites (232.62 and 195.29 mm(3), respectively; p<0.001). These results suggest that good space maintenance in sinus augmentation is achieved with BCP, while the osteoinductive potential of the sinus membrane is activated at the early stage of healing with rhBMP-2.
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Affiliation(s)
- Youna Choi
- Department of Periodontology, Research Institute for Periodontal Regeneration, Yonsei University College of Dentistry, Seoul, South Korea
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15
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Taniyama K, Shirakata Y, Yoshimoto T, Takeuchi N, Yoshihara Y, Noguchi K. Bone formation using β-tricalcium phosphate/carboxymethyl-chitin composite scaffold in rat calvarial defects. Oral Surg Oral Med Oral Pathol Oral Radiol 2012; 116:e450-6. [PMID: 22901650 DOI: 10.1016/j.oooo.2012.02.033] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2011] [Revised: 02/15/2012] [Accepted: 02/24/2012] [Indexed: 11/19/2022]
Abstract
OBJECTIVE The aim of the present study was to evaluate the effects of β-tricalcium phosphate/carboxymethyl-chitin material (β-TCP/CM-chitin) on bone formation in rat calvarial defects. STUDY DESIGN Eighteen animals surgically received 2 calvarial defects (5 mm) bilaterally in each parietal bone. β-TCP/CM-chitin was implanted in one side of each defect, and the contralateral side of the defect was left empty as a control. The animals were humanely killed at 4, 8, and 12 weeks after surgery for histologic evaluation. RESULTS New bone formation in the β-TCP/CM-chitin group was significantly greater than that in the control group throughout the healing periods (P < .05). β-TCP/CM-chitin was remarkably resorbed 12 weeks after surgery. CONCLUSIONS These results indicate that β-TCP/CM-chitin is useful as a scaffold for bone formation.
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Affiliation(s)
- Katsuyoshi Taniyama
- Postgraduate Student, Department of Periodontology, Kagoshima University, Graduate School of Medical and Dental Sciences, Kagoshima, Japan
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Birang R, Abouei MS, Razavi SM, Zia P, Soolari A. The effect of an enamel matrix derivative (Emdogain) combined with bone ceramic on bone formation in mandibular defects: a histomorphometric and immunohistochemical study in the canine. ScientificWorldJournal 2012; 2012:196791. [PMID: 22619627 PMCID: PMC3349124 DOI: 10.1100/2012/196791] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2011] [Accepted: 11/16/2011] [Indexed: 11/24/2022] Open
Abstract
Background. The purpose of this study was to evaluate the combination of an enamel matrix derivative (EMD) and an osteoconductive bone ceramic (BC) in improving bone regeneration. Materials and Methods. Four cylindrical cavities (6 × 6 mm) were prepared bilaterally in the mandible in three dogs. The defects were randomly assigned to four different treatments—filled with EMD/BC and covered with a nonresorbable membrane, filled with EMD/BC without membrane, membrane coverage only, or control (left untreated)—and healed for 2, 4, or 6 weeks. Harvested specimens were prepared for histologic, histomorphometric, and immunohistochemical analyses. Results. Sites treated with EMD/BC with or without membrane showed more total bone formation and lamellar bone formation than membrane-only and control defects. There were no statistically significant differences in total bone formation between EMD/BC with or without membrane. Conclusion. EMD with BC might improve bone formation in osseous defects more than membrane coverage alone; the use of a membrane had no significant additive effect on total bone formation.
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Affiliation(s)
- Reza Birang
- Department of Periodontics, School of Dentistry and Torabinejad Research Centre, Isfahan University of Medical Sciences, Isfahan, Iran
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Lomelino RDO, Castro-Silva II, Linhares ABR, Alves GG, Santos SRDA, Gameiro VS, Rossi AM, Granjeiro JM. The association of human primary bone cells with biphasic calcium phosphate (βTCP/HA 70:30) granules increases bone repair. JOURNAL OF MATERIALS SCIENCE. MATERIALS IN MEDICINE 2012; 23:781-788. [PMID: 22201029 DOI: 10.1007/s10856-011-4530-1] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/31/2011] [Accepted: 12/09/2011] [Indexed: 05/31/2023]
Abstract
This work evaluates the suitability of biphasic calcium phosphate (BCP) granules (β-TCP/HA 70:30) as potential carriers for cell-guided bone therapy. The BCP granules were obtained by synthesis in the presence of wax, thermal treatment, crushing and sieving and characterized by scanning electron microscopy (SEM), X-ray diffraction and Fourier transform infrared spectroscopy. The cytocompatibility of the BCP granules was confirmed by a multiparametric cytotoxicity assay. SEM analysis showed human bone cell adhesion and migration after seeding onto the material. Rat subcutaneous xenogeneic grafting of granules associated to human bone cells revealed a more accentuated moderate chronic inflammatory infiltrate, without signs of a strong xenoreactivity. Histomorphometrical analysis of bone repair of defects in rat skulls (∅ = 5 mm) has shown that bone cell associated-BCP and autograft promoted a two- and threefold increase, respectively, on new bone formation after 45 days, as compared to BCP alone and blood clot. The increase in bone repair supports the suitability the biocompatible (70:30) BCP granules as injectable and mouldable scaffolds for human cells in bone bioengineering.
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18
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Chang YY, Dissanayake S, Yun JH, Jung UW, Kim CS, Park KJ, Chai JK, Choi SH. The biological effect of cyanoacrylate-combined calcium phosphate in rabbit calvarial defects. J Periodontal Implant Sci 2011; 41:123-30. [PMID: 21811687 PMCID: PMC3139045 DOI: 10.5051/jpis.2011.41.3.123] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2011] [Accepted: 05/03/2011] [Indexed: 12/03/2022] Open
Abstract
Purpose The purpose of this study was to determine the biological effects of cyanoacrylate-combined calcium phosphate (CCP), in particular its potential to act as a physical barrier - functioning like a membrane - in rabbit calvarial defects. Methods In each animal, four circular calvarial defects with a diameter of 8 mm were prepared and then filled with either nothing (control group) or one of three different experimental materials. In the experimental conditions, they were filled with CCP alone (CCP group), filled with biphasic calcium phosphate (BCP) and then covered with an absorbable collagen sponge (ACS; BCP/ACS group), or filled with BCP and then covered by CCP (BCP/CCP group). Results After 4 and 8 weeks of healing, new bone formation appeared to be lower in the CCP group than in the control group, but the difference was not statistically significant. In both the CCP and BCP/CCP groups, inflammatory cells could be seen after 4 and 8 weeks of healing. Conclusions Within the limits of this study, CCP exhibited limited osteoconductivity in rabbit calvarial defects and was histologically associated with the presence of inflammatory cells. However, CCP demonstrated its ability to stabilize graft particles and its potential as an effective defect filler in bone augmentation, if the biocompatibility and osteoconductivity of CCP were improved.
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Affiliation(s)
- Yun-Young Chang
- Department of Periodontology, Research Institute for Periodontal Regeneration, Yonsei University College of Dentistry, Seoul, Korea
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Nam HW, Park JB, Lee JY, Rhee SH, Lee SC, Koo KT, Kim TI, Seol YJ, Lee YM, Ku Y, Rhyu IC, Park YJ, Chung CP. Enhanced Ridge Preservation by Bone Mineral Bound With Collagen-Binding Synthetic Oligopeptide: A Clinical and Histologic Study in Humans. J Periodontol 2011; 82:471-80. [DOI: 10.1902/jop.2010.100193] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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Kim JW, Choi KH, Yun JH, Jung UW, Kim CS, Choi SH, Cho KS. Bone formation of block and particulated biphasic calcium phosphate lyophilized with Escherichia coli-derived recombinant human bone morphogenetic protein 2 in rat calvarial defects. ACTA ACUST UNITED AC 2011; 112:298-306. [PMID: 21292513 DOI: 10.1016/j.tripleo.2010.10.025] [Citation(s) in RCA: 41] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2010] [Accepted: 10/14/2010] [Indexed: 11/28/2022]
Abstract
The objective of this study was to evaluate bone formation in rat calvarial defects after surgical implantation of block or particulated biphasic calcium phosphate (BCP) lyophilized with Escherichia coli-derived recombinant human bone morphogenetic protein 2 (ErhBMP-2). Critical-size calvarial osteotomy defects were created in 5 groups of Sprague-Dawley rats. Each group received one of the following: 1) sham surgery control; 2) biphasic calcium phosphate particles (CPP); 3) biphasic calcium phosphate block (CPB); 4) ErhBMP-2-coated CPP; or 5) ErhBMP-2-coated CPB. ErhBMP was coated on BCP by a stepwise lyophilizing protocol. The new bone formation was significantly greater in ErhBMP-2-treated groups compared with the untreated group. In particular, the ErhBMP-2/CPB group showed stability of augmented areas during the period of healing, due to relevant space-providing capacity. Thus, it can be concluded that CPP and CPB lyophilized with ErhBMP-2 enhance the formation of new bone, and CPB appears to be a suitable carrier for ErhBMP-2 in which a 3-dimensional structural integrity is an important consideration factor.
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Affiliation(s)
- Jin-Woo Kim
- Research Institute for Periodontal Regeneration, Department of Periodontology, College of Dentistry, Yonsei University, Seodaemun-gu, Seoul, South Korea
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Lim HC, Sohn JY, Park JC, Um YJ, Jung UW, Kim CS, Lee YK, Choi SH. Osteoconductive effects of calcium phosphate glass cement grafts in rabbit calvarial defects. J Biomed Mater Res B Appl Biomater 2011; 95:47-52. [PMID: 20665684 DOI: 10.1002/jbm.b.31681] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
Calcium phosphate glass (CPG) is well-documented alloplastic bone graft material. The objective of this study was to evaluate the osteoconductive effect of newly developed calcium phosphate glass cement (CPGC) in rabbit calvarial defects. Three circular defects (8 mm diameter) were created on the rabbit calvarium. One defect was filled with biphasic calcium phosphate (BCP group) and one defect was filled with CPGC (CPGC group). The remaining defect was not filled as the control. Histologic and histometric analysis were performed at four and eight weeks following the implantation of materials. One-way ANOVA method was used to evaluated the significance between three groups (p < 0.05). The CPGC group did not show a statistical difference in new bone area compared with the control at all healing periods, but the bone formation rate of CPGC seemed to increase between four and eight weeks. This suggests the bone formation rate of CPGC is initially slow, but increases at a specific time, showing the possibility of greater bone formation with time. The resorption rate of CPGC was greater than BCP. Within the limits of this study, CPGC demonstrated good space maintaining capacity and had an osteoconductive effect, suggesting it could be successfully used to improve bone formation capacity.
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Affiliation(s)
- Hyun-Chang Lim
- Department of Periodontology, Research Institute for Periodontal Regeneration College of Dentistry, Yonsei University, Seoul 120-752, Korea
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Winslow BD, Shao H, Stewart RJ, Tresco PA. Biocompatibility of adhesive complex coacervates modeled after the sandcastle glue of Phragmatopoma californica for craniofacial reconstruction. Biomaterials 2010; 31:9373-81. [PMID: 20950851 DOI: 10.1016/j.biomaterials.2010.07.078] [Citation(s) in RCA: 82] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2010] [Accepted: 07/21/2010] [Indexed: 11/24/2022]
Abstract
Craniofacial reconstruction would benefit from a degradable adhesive capable of holding bone fragments in three-dimensional alignment and gradually being replaced by new bone without loss of alignment or volume changes. Modeled after a natural adhesive secreted by the sandcastle worm, we studied the biocompatibility of adhesive complex coacervates in vitro and in vivo with two different rat calvarial models. We found that the adhesive was non-cytotoxic and supported the attachment, spreading, and migration of a commonly used osteoblastic cell line over the course of several days. In animal studies we found that the adhesive was capable of maintaining three-dimensional bone alignment in freely moving rats over a 12 week indwelling period. Histological evidence indicated that the adhesive was gradually resorbed and replaced by new bone that became lamellar across the defect without loss of alignment, changes in volume, or changes in the adjacent uninjured bone. The presence of inflammatory cells was consistent with what has been reported with other craniofacial fixation methods including metal plates, screws, tacks, calcium phosphate cements and cyanoacrylate adhesives. Collectively, the results suggest that the new bioadhesive formulation is degradable, osteoconductive and appears suitable for use in the reconstruction of craniofacial fractures.
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Affiliation(s)
- Brent D Winslow
- The Keck Center for Tissue Engineering, Department of Bioengineering, College of Engineering, University of Utah, 20 S 2030 E Building, 570 BPRB, Room 108D, Salt Lake City, UT 84112, USA
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Santos FA, Pochapski MT, Martins MC, Zenóbio EG, Spolidoro LC, Marcantonio Jr E. Comparison of Biomaterial Implants in the Dental Socket: Histological Analysis in Dogs. Clin Implant Dent Relat Res 2010; 12:18-25. [DOI: 10.1111/j.1708-8208.2008.00126.x] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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He D, Genecov DG, Herbert M, Barcelo R, Elsalanty ME, Weprin BE, Opperman LA. Effect of recombinant human bone morphogenetic protein-2 on bone regeneration in large defects of the growing canine skull after dura mater replacement with a dura mater substitute. J Neurosurg 2010; 112:319-28. [PMID: 19267528 DOI: 10.3171/2009.1.jns08976] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
OBJECT This study was designed to evaluate the bone regeneration potential of the dura mater and dura mater substitute (Durepair) in the presence of recombinant human bone morphogenetic protein-2 (rhBMP-2) delivered in a collagen sponge-collagen-ceramic matrix (CCM; MasterGraft Matrix) in a large skull defect in growing canines. METHODS Forty immature male beagles were used to create two 2.5 x 4-cm cranial defects on each side of the sagittal suture. The dura mater on the left side was cut to make a 1 x 3-cm defect and replaced with bovine skin collagen (Durepair). The dura mater on the right side remained intact. Different doses of rhBMP-2 (none [8 animals], 0.11 mg/ml [4 animals], 0.21 mg/ml [4 animals], and 0.43 mg/ml [8 animals]) were infused on 2 Type I bovine absorbable collagen sponge (ACS) strips. The strips were layered with the CCM (15% hydroxyapatite [HA]/85% tricalcium phosphate [TCP]) to reconstruct both cranial defects. In a fifth group (8 animals), 0.43 mg/ml rhBMP-2 was directly infused into the CCM. Demineralized canine cancellous freeze-dried demineralized bone matrix (DBM; 8 animals) was used as a control in a sixth group. All materials were fixed under 2 resorbable protective sheets (MacroPore). Skulls were resected 16 weeks after operation. Histological and histomorphometric analyses on the percentage of the defect spanned by bone, and the percentage of residual HA-TCP granules and collagen were analyzed. RESULTS Calcified seroma was the only complication observed and only occurred in the 0.43-mg/ml rhBMP-2 groups (Groups 4 and 5). Dura mater repair appeared complete at 4 months in all animals. New bone was formed sporadically throughout the skull defect in the ACS+CCM and DBM groups without rhBMP-2. In all rhBMP-2 groups, mature new bone (compact and trabecular) was uniformly formed across the defect on both the repaired and intact dura mater sides. There was significant new compact bone formation on top of the repaired dura mater, which did not appear in the ACS+CCM and DBM groups lacking rhBMP-2. Greater HA-TCP and collagen scaffold resorption was noted in rhBMP-2 groups compared with non-rhBMP-2 groups. Statistical analysis showed there was a significantly lower percentage of bone spanning the defect in the ACS+CCM group compared with groups with rhBMP-2, with more residual HA-TCP and collagen on the repaired dura mater side than the intact dura mater side (p < 0.05). In all rhBMP-2 groups, there were no significant differences in new bone formation between the repaired and intact dura mater sides (p > 0.05). CONCLUSIONS The ACS+CCM combination had an effect similar to demineralized bone-on-bone regeneration in craniofacial reconstruction. The addition of rhBMP-2 to CCM directly or with ACS induces mature new bone formation in large cranial defects both in the presence of intact dura mater and repaired dura mater.
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Affiliation(s)
- Dongmei He
- International Craniofacial Institute, Cleft Lip and Palate Treatment Center, Medical City Dallas, Dallas, Texas, USA
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Um YJ, Jung UW, Chae GJ, Kim CS, Lee YK, Cho KS, Kim CK, Choi SH. The effects of hydroxyapatite/calcium phosphate glass scaffold and its surface modification with bovine serum albumin on 1-wall intrabony defects of beagle dogs: a preliminary study. Biomed Mater 2008; 3:044113. [PMID: 19029611 DOI: 10.1088/1748-6041/3/4/044113] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
The purpose of this study was to evaluate the effects of biphasic hydroxyapatite/calcium phosphate glass (HA/CPG) scaffold and its surface modification with bovine serum albumin (BSA) on periodontal regeneration. 1-wall intrabony defects were surgically created on five beagle dogs. HA/CPG scaffolds, with a hydroxyapatite (HA)/calcium phosphate glass (CPG) ratio of 95:5 by weight (%) and surface modification done by 2% bovine serum albumin, were used. The control group received surgical flap operation, and the experimental groups were filled with HA/CPG scaffolds and HA/CPG(BSA) scaffolds. The animals were sacrificed eight weeks after surgery. Histological findings revealed better space maintenance in the experimental groups than the control group, and showed new bone formation intermittently in between the residual material particles. The newly formed bone was mostly woven bone and the residual particles were undergoing resorption. Cementum regeneration was observed with limited root resorption in all the groups. Histometric analysis also revealed greater mean values in new bone formation, cementum regeneration and bone area than the control group in both experimental groups. However, similar findings were presented between HA/CPG and HA/CPG(BSA). The result of the present study revealed the newly fabricated HA/CPG scaffold to have a potential use as a bone substitute material.
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Affiliation(s)
- Yoo-Jung Um
- Department of Periodontology, Research Institute for Periodontal Regeneration, College of Dentistry, Yonsei University, 134 Shinchon-Dong, Seodaemun-gu, Seoul 120-752 l, Korea
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Histomorphometric Analysis of Bone Repair in Critical Size Defect in Rats Calvaria Treated with Hydroxyapatite and Zinc-Containing Hydroxyapatite 5%. ACTA ACUST UNITED AC 2008. [DOI: 10.4028/www.scientific.net/kem.396-398.15] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Biomaterials for treatment of bone defects have been studied for a long time. Alloplastic materials, mainly hydroxyapatite (HA), are under intense investigation due to its biocompatibility and osteoconductive properties. The HA can be modified by the incorporation of bivalent cations as Zn2+ known as a positive effectors for bone repair. The purpose of this study was to evaluate comparatively the effectiveness of 5% zinc-containing hydroxyapatite (ZnHA) in the treatment of critical size defect (CSD) in rat’s calvaria. CSD (8mm diameter) created in the skull of forty-five Wistar rats were filled with autogenous bone, HA and ZnHA. Skulls harvested after 30, 90 and 180 days were submitted to histological processing for paraffin embedding. Sections of 5 µm-thick stained with hematoxylin and eosin (HE) allowed histomorphometric analysis. The area of neoformed bone increased (p<0.001) from 30 to 180 days irrespective to treatment groups. ZnHA and the control group showed a large at 180 days but no significant difference compared to HA. Therefore, we concluded that both biomaterials are biocompatibles and osteoconductors, promoting new bone formation and apposition of bone on the surface throughout the periods and the addition of zinc improved the osteogenesis.
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Mokbel N, Bou Serhal C, Matni G, Naaman N. Healing patterns of critical size bony defects in rat following bone graft. Oral Maxillofac Surg 2008; 12:73-78. [PMID: 18618164 DOI: 10.1007/s10006-008-0107-7] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
PURPOSE The aim of the present study was to evaluate the healing patterns of critical size calvarial bony defects treated with different bone substitutes and to compare them to an autogenous graft and an ungrafted control group. MATERIALS AND METHODS Thirty-six Sprague-Dawley rats (200-230 g) were used. A periosteal flap was raised and an 8 mm defect was trephined. Rats were divided into six groups and treated as follows: group 1 was treated with a deproteinized bovine xenograft (XO), group 2 was treated with a bovine xenograft and covered with a resorbable membrane (XOCM), defects in group 3 were filled with a decalcified freeze-dried bone allograft (DFDBA), group 4 was treated with a composite bone substitute made of bovine xenograft and collagen (XOC), group 5 was filled with autogenous bone (AUTO), and group 6 was left untreated (control). The animals were euthanized at 2 months. RESULTS Mean bone formation was 2.97 +/- 1.82 mm2 in group 5 (AUTO) followed by 2.93 +/- 1.93 mm2 in group 3 (DFDBA) and 2.25 +/- 1.94 mm2 in group 4 (XOC). Groups 1, 2, and 6 (XO, XOCM, and control, respectively) were not significantly different (p > 0.05) with a mean bone formation of 1.97 +/- 1.64, 1.87 +/- 1.07, and 1.85 +/- 1.04 mm2, respectively. CONCLUSIONS This work confirmed the superiority of autogenous bone when it comes to bone grafting. Nevertheless, some bone substitutes can improve bone formation when compared to the control. New bone substitutes with growth factors to improve their abilities to induce bone formation should be experimented.
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Affiliation(s)
- N Mokbel
- Department of Periodontology, Faculty of Dentistry, Université Saint-Joseph, Beirut, Lebanon.
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Artzi Z, Weinreb M, Carmeli G, Lev-Dor R, Dard M, Nemcovsky CE. Histomorphometric assessment of bone formation in sinus augmentation utilizing a combination of autogenous and hydroxyapatite/biphasic tricalcium phosphate graft materials: at 6 and 9 months in humans. Clin Oral Implants Res 2008; 19:686-92. [PMID: 18492077 DOI: 10.1111/j.1600-0501.2008.01539.x] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
Abstract
OBJECTIVE The aim of this study was to examine the efficacy of a new biphasic hydroxyapatite/tricalcium phosphate (HA/TCP) bone substitute in combination with particulate autogenous bone in sinus floor augmentation procedures. MATERIAL AND METHODS A simultaneous or a two-stage sinus augmentation and implant placement were conducted in 28 patients. A mixture of HA/TCP and autogenous bone chips in a 1 : 1 ratio was used as the grafting biomaterial. Cylindrical specimen bone retrieval was performed in all patients except one. Specimens were harvested either at 6 (n=14) or 9 (n=13) months post-augmentation. For histologic and histomorphometric evaluations, the non-decalcified tissue processing (Donath's technique) was performed. RESULTS Newly formed bone around the grafted particles was found in all samples. The encircling, highly cellular bone followed the outline of the grafted particles in direct contact. Both woven and lamellar types of bone were observed. Morphometrically, the total mean bone area fraction of all sections was 34.8+/-10.3%, increasing from 28.6+/-7.8% at 6 months to 41.6+/-8.3% at 9 months (P<0.001). Mean particle area fraction average was 25.5+/-11.6% and 23.5+/-9.3% at 6 and 9 months, respectively, with a total mean of 24.5+/-10.4%. The increase in bone area fraction was not significantly correlated to the decrease of the grafted particles area fraction. CONCLUSIONS The biphasic HA/TCP showed biocompatible and osteoconductive properties. This alloplast as a composite with autogenous bone chips promotes newly formed bone, which increases in its fraction along an extended healing period.
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Affiliation(s)
- Zvi Artzi
- Department of Periodontology, The Maurice and Gabriela Goldschleger School of Dental Medicine, Tel Aviv University, Tel Aviv, Israel.
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Artzi Z, Weinreb M, Carmeli G, Lev-Dor R, Dard M, Nemcovsky CE. Histomorphometric assessment of bone formation in sinus augmentation utilizing a combination of autogenous and hydroxyapatite/biphasic tricalcium phosphate graft materials: at 6 and 9 months in humans. Clin Oral Implants Res 2008. [DOI: 10.1111/j.1600-0501.2008.01539.x-i2] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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Genetic Markers of Osteogenesis and Angiogenesis Are Altered in Processed Lipoaspirate Cells when Cultured on Three-Dimensional Scaffolds. Plast Reconstr Surg 2008; 121:411-423. [DOI: 10.1097/01.prs.0000298510.03226.5f] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Mayer I, Cuisinier F, Gdalya S, Popov I. TEM study of the morphology of Mn2+-doped calcium hydroxyapatite and β-tricalcium phosphate. J Inorg Biochem 2008; 102:311-7. [DOI: 10.1016/j.jinorgbio.2007.09.004] [Citation(s) in RCA: 39] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2007] [Revised: 07/04/2007] [Accepted: 09/13/2007] [Indexed: 01/14/2023]
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Carvalho AL, Faria PEP, Grisi MFM, Souza SLS, Taba MJ, Palioto DB, Novaes ABJ, Fraga AF, Ozyegin LS, Oktar FN, Salata LA. Effects of granule size on the osteoconductivity of bovine and synthetic hydroxyapatite: a histologic and histometric study in dogs. J ORAL IMPLANTOL 2007; 33:267-76. [PMID: 17987858 DOI: 10.1563/1548-1336(2007)33[267:eogsot]2.0.co;2] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Two bovine hydroxyapatites (BHAs), one with granule size of 150 to 200 microm and one with granule size of 300 to 329 micro, and 2 synthetic hydroxyapatites (SHAs), with granule size of 150 and 300 microm, respectively, were compared for effectiveness in repairing circumferential bone defects in dogs. The hydroxyapatites (HAs) were characterized through powder x-ray diffraction (XRD) analysis and scanning electron microscopy (SEM). Three trephined bone defects (5.0 mm wide x 4 mm long) were created in the humeruses of 8 dogs. In a random manner, the defects on each side were treated with either BHA with small granules (BHA[s]), BHA with large granules (BHA[L]), SHA with small granules (SHA[s]), SHA with large granules (SHA[L]), or left to heal unaided (bilateral control). Four dogs were sacrificed after 6 and 12 postoperative weeks, respectively. Ground sections of each defect were submitted to histologic and histomorphometric analysis (percentage of area occupied by bone, bone marrow, and biomaterial). As a rule, the HA granules exhibited direct bone contact, regardless of the origin and the size of the granules. Control sites were related and had an increased amount of connective tissue infiltration. At 12 weeks, BHA(s) exhibited improved bone formation compared with SHA(s) and SHA(L). The SHA(s) delivered reduced amounts of bone compared with the remaining groups (control included). The area of bone measured in BHA(s) sites was significantly higher at 12 weeks than 6 weeks. The XRD revealed the tested HA samples to be highly crystalline, while BHA appeared with rougher surface at SEM analysis. The BHA(s) performed better than the SHA(s) and SHA(L), as assessed by the amount of bone measured in both implantation sites at 12 weeks. The BHA's material characteristic itself rather than granules size accounted for the distinctive biological behavior. The increased roughness of the BHAs' surface, as assessed through SEM, seemed to benefit the osteoconduction process.
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Affiliation(s)
- Alexandre L Carvalho
- Department of Oral and Maxillofacial Surgery and Periodontics, Faculty of Dentistry of Ribeirão Preto, The University of São Paulo at Ribeirão Preto, SP, Brazil
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