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Naini AY, Kobravi S, Jafari A, Lotfalizadeh M, Lotfalizadeh N, Farhadi S. Comparing the effects of Bone +B® xenograft and InterOss® xenograft bone material on rabbit calvaria bone defect regeneration. Clin Exp Dent Res 2024; 10:e875. [PMID: 38798121 PMCID: PMC11128774 DOI: 10.1002/cre2.875] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2023] [Revised: 02/17/2024] [Accepted: 02/19/2024] [Indexed: 05/29/2024] Open
Abstract
BACKGROUND The bone regeneration therapy is often used in patients with inadequate bone support for implants, particularly following tooth extractions. Xenografts derived from animal tissues are effective bone reconstructive options that resist resorption and pose a low risk of transmitting disease. Therefore, these implants may be a good option for enhancing and stabilizing maxillary sinuses. The purpose of this study was to compare two xenografts, Bone+B® and InterOss®, for the reconstruction of rabbit calvaria defects. METHODS AND MATERIALS The study involved seven male New Zealand white rabbits. In the surgical procedure, 21 spots were created on both sides of the midline calvarium by creating three 8-millimeter defects. A control group was used, as well as two treatment groups utilizing Bone+B® Grafts and InterOss® Grafts. After 3 months, the rabbits were euthanized, followed by pathological evaluation. Analysis of these samples focused on bone formation, xenograft remaining material, and inflammation levels, using Adobe Photoshop CS 8.0 and SPSS version 24. RESULTS With the application of Bone+B® graft, bone formation ranged from 32% to 45%, with a mean of 37.80% (±5.63), and the remaining material ranged from 28% to 37%, with a mean of 32.60% (±3.65). Using InterOss® grafts, bone formation was 61% to 75%, the mean was 65.83% (±4.75), and the remaining material was 9% to 18%, with a mean of 13.17% (±3.06). The bone formation in the control group ranged from 10% to 25%, with a mean of 17.17% (±6.11). InterOss® had lower inflammation levels than other groups, but the difference was not statistically significant (p > .05). CONCLUSION InterOss® bone powder is the best option for maxillofacial surgery and bone reconstruction. This is due to more bone formation, less remaining material, and a lower inflammation level. Compared to the control group, Bone+B® improves healing and bone quality, thus making it an alternative to InterOss®.
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Affiliation(s)
- Afshin Yadegari Naini
- Department of Oral and Maxillofacial Surgery, Faculty of Dentistry (Khorasgan)Isfahan Azad UniversityIsfahanIran
| | - Sepehr Kobravi
- Department of Oral and Maxillofacial Surgery, Faculty of Dentistry, Tehran medical sciencesIslamic Azad UniversityTehranIran
| | - Aida Jafari
- Department of Oral and Maxillofacial Surgery, Faculty of Dentistry (Khorasgan)Isfahan Azad UniversityIsfahanIran
| | | | - Narges Lotfalizadeh
- Department of Clinical Sciences, Faculty of Veterinary MedicineFerdowsi University of MashhadMashhadIran
| | - Sareh Farhadi
- Department of Oral & Maxillofacial Pathology, Faculty of Dentistry, Tehran Medical SciencesIslamic Azad UniversityTehranIran
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dos Santos AC, Aroni MAT, Pigossi SC, Lopes MES, Cerri PS, Miguel FB, Santos SRDA, Cirelli JA, Rosa FP. A new hydroxyapatite-alginate-gelatin biocomposite favor bone regeneration in a critical-sized calvarial defect model. Braz Dent J 2024; 35:e245461. [PMID: 38775590 PMCID: PMC11086609 DOI: 10.1590/0103-6440202405461] [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: 03/09/2023] [Accepted: 03/13/2023] [Indexed: 05/25/2024] Open
Abstract
This study aimed to evaluate the osteogenic potential of hydroxyapatite (HA), Alginate (Alg), and Gelatine (Gel) composite in a critical-size defect model in rats. Twenty-four male rats were divided into three groups: a negative control with no treatment (Control group), a positive control treated with deproteinized bovine bone mineral (DBBM group), and the experimental group treated with the new HA-Alg-Gel composite (HA-Alg-Gel group). A critical size defect (8.5mm) was made in the rat's calvaria, and the bone formation was evaluated by in vivo microcomputed tomography analysis (µCT) after 1, 15, 45, and 90 days. After 90 days, the animals were euthanized and histological and histomorphometric analyses were performed. A higher proportion of mineralized tissue/biomaterial was observed in the DBBM group when compared to the HA-Alg-Gel and Control groups in the µCT analysis during all analysis periods. However, no differences were observed in the mineralized tissue/biomaterial proportion observed on day 1 (immediate postoperative) in comparison to later periods of analysis in all groups. In the histomorphometric analysis, the HA-Alg-Gel and Control groups showed higher bone formation than the DBBM group. Moreover, in histological analysis, five samples of the HA-Alg-Gal group exhibited formed bone spicules adjacent to the graft granules against only two of eight samples in the DBBM group. Both graft materials ensured the maintenance of defect bone thickness, while a tissue thickness reduction was observed in the control group. In conclusion, this study demonstrated the osteoconductive potential of HA-Alg-Gel bone graft by supporting new bone formation around its particles.
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Affiliation(s)
- Anderson Cunha dos Santos
- Instituto de Ciências da Saúde(ICS), Universidade Federal da Bahia(UFBA), Salvador- BA, Brasil
- Centro Universitário Maria Milza(UNIMAM), Governador Mangabeira- BA, Brasil
| | - Mauricio Andres Tinajero Aroni
- Departamento de Diagnóstico e Cirurgia - Periodontia, Faculdade de Odontologia de Araraquara, Universidade Estadual Paulista - UNESP, Araraquara, São Paulo, Brasil
- Universidad de Especialidades Espíritu Santo(UEES), Samborondón, Ecuador
| | - Suzane Cristina Pigossi
- Departamento de Periodontia e Implantodontia, Faculdade de Odontologia, Universidade Federal de Uberlândia, Uberlândia, MG, Brasil
| | - Maria Eduarda Scordamaia Lopes
- Departamento de Diagnóstico e Cirurgia - Periodontia, Faculdade de Odontologia de Araraquara, Universidade Estadual Paulista - UNESP, Araraquara, São Paulo, Brasil
| | - Paulo Sergio Cerri
- Departamento de Morfologia e Clínica Infantil, Faculdade de Odontologia de Araraquara, Universidade Estadual Paulista - UNESP, Araraquara. São Paulo, Brasil
| | - Fúlvio Borges Miguel
- Instituto de Ciências da Saúde(ICS), Universidade Federal da Bahia(UFBA), Salvador- BA, Brasil
| | | | - Joni Augusto Cirelli
- Departamento de Diagnóstico e Cirurgia - Periodontia, Faculdade de Odontologia de Araraquara, Universidade Estadual Paulista - UNESP, Araraquara, São Paulo, Brasil
| | - Fabiana Paim Rosa
- Instituto de Ciências da Saúde(ICS), Universidade Federal da Bahia(UFBA), Salvador- BA, Brasil
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Esfandiari S, Amid R, Kadkhodazadeh M, Kheiri A. Comparison of the Volume and Histological Properties of Newly Formed Bone after the Application of Three Types of Bone Substitutes in Critical-Sized Bone Defects. J Long Term Eff Med Implants 2024; 34:17-27. [PMID: 38305367 DOI: 10.1615/jlongtermeffmedimplants.2023046281] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2024]
Abstract
This study aimed to compare the volume and quality of the newly formed bone following application of two types of xenografts and one synthetic material in bone defects in rabbit calvaria from histological and micro-CT aspects. Four 8-mm defects were created in 12 rabbit calvaria. Three defects were filled with bone substitutes and one was left unfilled as the control group. The newly formed bone was evaluated histologically and also by micro-CT at 8 and 12 weeks after the intervention. The percentage of osteogenesis was comparable in histomor-phometric assessment and micro-CT. Histological analysis showed that the percentage of the newly formed bone was 10.92 ± 5.17%, 14.70 ± 11.02%, 11.47 ± 7.04%, and 9.45 ± 5.18% in groups bovine 1, bovine 2, synthetic, and negative control, respectively after 8 weeks. These values were 33.70 ± 11.48%, 26.30 ± 18.05%, 22.92 ± 6.30%, and 14.82 ± 8.59%, respectively at 12 weeks. The difference in the percentage of the new bone formation at 8 and 12 weeks was not significant in any group (P > 0.05) except for bovine 1 group (P < 0.05). Micro-CT confirmed new bone formation in all groups but according to the micro-CT results, the difference between the control and other groups was significant in this respect (P < 0.05). All bone substitutes enhanced new bone formation compared with the control group. Micro-CT assessment yielded more accurate and different results compared with histological assessment.
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Affiliation(s)
- Shiva Esfandiari
- Department of Biology, School of Science, Shahid Beheshti University, Tehran, Iran
| | - Reza Amid
- Dental Research Center, Research Institute of Dental Sciences, School of Dentistry, Shahid Beheshti University of Medical Sciences, Tehran, Iran; Department of Periodontics, School of Dentistry, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Mahdi Kadkhodazadeh
- Dental Research Center, Research Institute of Dental Sciences, School of Dentistry, Shahid Beheshti University of Medical Sciences, Tehran, Iran; Department of Periodontics, School of Dentistry, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Aida Kheiri
- Department of Periodontics, School of Dentistry, Shahid Beheshti University of Medical Sciences, Tehran, Iran
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Yang J, Zhang L, Ding Q, Zhang S, Sun S, Liu W, Liu J, Han X, Ding C. Flavonoid-Loaded Biomaterials in Bone Defect Repair. Molecules 2023; 28:6888. [PMID: 37836731 PMCID: PMC10574214 DOI: 10.3390/molecules28196888] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2023] [Revised: 09/25/2023] [Accepted: 09/27/2023] [Indexed: 10/15/2023] Open
Abstract
Skeletons play an important role in the human body, and can form gaps of varying sizes once damaged. Bone defect healing involves a series of complex physiological processes and requires ideal bone defect implants to accelerate bone defect healing. Traditional grafts are often accompanied by issues such as insufficient donors and disease transmission, while some bone defect implants are made of natural and synthetic polymers, which have characteristics such as good porosity, mechanical properties, high drug loading efficiency, biocompatibility and biodegradability. However, their antibacterial, antioxidant, anti-inflammatory and bone repair promoting abilities are limited. Flavonoids are natural compounds with various biological activities, such as antitumor, anti-inflammatory and analgesic. Their good anti-inflammatory, antibacterial and antioxidant activities make them beneficial for the treatment of bone defects. Several researchers have designed different types of flavonoid-loaded polymer implants for bone defects. These implants have good biocompatibility, and they can effectively promote the expression of angiogenesis factors such as VEGF and CD31, promote angiogenesis, regulate signaling pathways such as Wnt, p38, AKT, Erk and increase the levels of osteogenesis-related factors such as Runx-2, OCN, OPN significantly to accelerate the process of bone defect healing. This article reviews the effectiveness and mechanism of biomaterials loaded with flavonoids in the treatment of bone defects. Flavonoid-loaded biomaterials can effectively promote bone defect repair, but we still need to improve the overall performance of flavonoid-loaded bone repair biomaterials to improve the bioavailability of flavonoids and provide more possibilities for bone defect repair.
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Affiliation(s)
- Jiali Yang
- College of Traditional Chinese Medicine, Jilin Agricultural University, Changchun 130118, China; (J.Y.); (L.Z.); (Q.D.); (S.Z.); (S.S.); (W.L.)
- Jilin Agriculture Science and Technology College, Jilin 132101, China
| | - Lifeng Zhang
- College of Traditional Chinese Medicine, Jilin Agricultural University, Changchun 130118, China; (J.Y.); (L.Z.); (Q.D.); (S.Z.); (S.S.); (W.L.)
- Jilin Agriculture Science and Technology College, Jilin 132101, China
| | - Qiteng Ding
- College of Traditional Chinese Medicine, Jilin Agricultural University, Changchun 130118, China; (J.Y.); (L.Z.); (Q.D.); (S.Z.); (S.S.); (W.L.)
| | - Shuai Zhang
- College of Traditional Chinese Medicine, Jilin Agricultural University, Changchun 130118, China; (J.Y.); (L.Z.); (Q.D.); (S.Z.); (S.S.); (W.L.)
| | - Shuwen Sun
- College of Traditional Chinese Medicine, Jilin Agricultural University, Changchun 130118, China; (J.Y.); (L.Z.); (Q.D.); (S.Z.); (S.S.); (W.L.)
| | - Wencong Liu
- College of Traditional Chinese Medicine, Jilin Agricultural University, Changchun 130118, China; (J.Y.); (L.Z.); (Q.D.); (S.Z.); (S.S.); (W.L.)
- School of Food and Pharmaceutical Engineering, Wuzhou University, Wuzhou 543002, China
| | - Jinhui Liu
- Huashikang (Shenyang) Health Industrial Group Corporation, Shenyang 110031, China;
| | - Xiao Han
- Looking Up Starry Sky Medical Research Center, Siping 136001, China;
| | - Chuanbo Ding
- Jilin Agriculture Science and Technology College, Jilin 132101, China
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Li J, Zhao Y, Chen S, Wang S, Zhong W, Zhang Q. Research Hotspots and Trends of Bone Xenograft in Clinical Procedures: A Bibliometric and Visual Analysis of the Past Decade. Bioengineering (Basel) 2023; 10:929. [PMID: 37627814 PMCID: PMC10451653 DOI: 10.3390/bioengineering10080929] [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: 06/20/2023] [Revised: 07/11/2023] [Accepted: 07/21/2023] [Indexed: 08/27/2023] Open
Abstract
BACKGROUND Bone defect therapy is a common clinical challenge for orthopedic and clinical physicians worldwide, and the therapeutic effect affects the physiological function and healthy life quality of millions of patients. Compared with traditional autogenous bone transplants, bone xenografts are attracting attention due to their advantages of unlimited availability and avoidance of secondary damage. However, there is currently a lack of bibliometric analysis on bone xenograft. This study aimed to use bibliometric methods to analyze the literature on bone xenograft from 2013 to 2023, to explore the current status, hotspots, and future trends of research in this field, and to promote its development and progress. METHODS Using the Web of Science Core Collection database, we retrieved and collected publication data related to xenogeneic bone grafting materials worldwide from January 2013 to March 2023. Origin (2021), CiteSpace (6.2.R2 standard), and an online bibliometric platform were used for bibliometric analysis and data visualization. RESULTS A total of 3395 documents were retrieved, and 686 eligible papers were selected. The country and institutions with the highest number of publications and centrality were the United States (125 papers, centrality = 0.44) and the University of Zurich (29 papers, centrality = 0.28), respectively. The most cited author was Araujo MG (163 times), and the author with the most significant centrality was Froum SJ (centrality = 0.09). The main keyword clusters were "tissue engineering", "sinus floor elevation", "dental implants", "tooth extraction", and "bone substitutes". The most significant bursting keywords in the last three years were "platelet rich fibrin". CONCLUSIONS Research on bone xenograft is steadily growing and will continue to rise. Currently, research hotspots and directions are mainly focused on dental implants related to bone-augmentation techniques and bone tissue engineering. In the future, research hotspots and directions may focus on decellularization technology and investigations involving platelet-rich fibrin.
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Affiliation(s)
- Jiayue Li
- Guangzhou Key Laboratory of Basic and Applied Research of Oral Regenerative Medicine, Guangdong Engineering Research Center of Oral Restoration and Reconstruction, Affiliated Stomatology Hospital of Guangzhou Medical University, Guangzhou 510182, China
| | - Yujue Zhao
- Guangzhou Key Laboratory of Basic and Applied Research of Oral Regenerative Medicine, Guangdong Engineering Research Center of Oral Restoration and Reconstruction, Affiliated Stomatology Hospital of Guangzhou Medical University, Guangzhou 510182, China
| | - Shili Chen
- Guangzhou Key Laboratory of Basic and Applied Research of Oral Regenerative Medicine, Guangdong Engineering Research Center of Oral Restoration and Reconstruction, Affiliated Stomatology Hospital of Guangzhou Medical University, Guangzhou 510182, China
| | - Simin Wang
- Guangzhou Key Laboratory of Basic and Applied Research of Oral Regenerative Medicine, Guangdong Engineering Research Center of Oral Restoration and Reconstruction, Affiliated Stomatology Hospital of Guangzhou Medical University, Guangzhou 510182, China
| | - Wen Zhong
- Guangzhou Key Laboratory of Basic and Applied Research of Oral Regenerative Medicine, Guangdong Engineering Research Center of Oral Restoration and Reconstruction, Affiliated Stomatology Hospital of Guangzhou Medical University, Guangzhou 510182, China
| | - Qing Zhang
- Guangzhou Key Laboratory of Basic and Applied Research of Oral Regenerative Medicine, Guangdong Engineering Research Center of Oral Restoration and Reconstruction, Affiliated Stomatology Hospital of Guangzhou Medical University, Guangzhou 510182, China
- Laboratory for Myology, Department of Human Movement Sciences, Faculty of Behavioural and Movement Sciences, Vrije Universiteit Amsterdam, Amsterdam Movement Sciences, 51081 BT Amsterdam, The Netherlands
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Hwang SH, Moon K, Du W, Cho WT, Huh JB, Bae EB. Effect of Porcine- and Bovine-Derived Xenografts with Hydroxypropyl Methylcellulose for Bone Formation in Rabbit Calvaria Defects. MATERIALS (BASEL, SWITZERLAND) 2023; 16:1850. [PMID: 36902966 PMCID: PMC10004720 DOI: 10.3390/ma16051850] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/23/2022] [Revised: 02/20/2023] [Accepted: 02/21/2023] [Indexed: 06/18/2023]
Abstract
In this study, hydroxypropyl methylcellulose (HPMC) was mixed with particle-type xenografts, derived from two different species (bovine and porcine), to increase the manipulability of bone grafts and compare the bone regeneration ability. Four circular defects with a diameter of 6 mm were formed on each rabbit calvaria, and the defects were randomly divided into three groups: no treatment (control group), HPMC-mixed bovine xenograft (Bo-Hy group), and HPMC-mixed porcine xenograft (Po-Hy group). At eight weeks, micro-computed tomography (µCT) scanning and histomorphometric analyses were performed to evaluate new bone formation within the defects. The results revealed that the defects treated with the Bo-Hy and the Po-Hy showed higher bone regeneration than the control group (p < 0.05), while there was no significant difference between the two xenograft groups (p > 0.05). Within the limitations of the present study, there was no difference in new bone formation between porcine and bovine xenografts with HPMC, and bone graft material was easily moldable with the desired shape during surgery. Therefore, the moldable porcine-derived xenograft with HPMC used in this study could be a promising substitute for the currently used bone grafts as it exhibits good bone regeneration ability for bony defects.
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Affiliation(s)
- Su-Hyun Hwang
- Department of Prosthodontics, Dental Research Institute, Dental and Life Sciences Institute, Education and Research Team for Life Science on Dentistry, School of Dentistry, Pusan National University, Yangsan 50612, Republic of Korea
| | - Keumok Moon
- Department of Integrated Biological Science, Pusan National University, Busan 46241, Republic of Korea
| | - Wen Du
- State Key Laboratory of Oral Diseases, & National Clinical Research Center for Oral Diseases, Department of Prosthodontics, West China Hospital of Stomatology, Sichuan University, Chengdu 610093, China
- The Shapiro Family Laboratory of Viral Oncology and Aging Research, Section of Restorative Dentistry, UCLA School of Dentistry, Los Angeles, CA 90095, USA
| | - Won-Tak Cho
- Department of Prosthodontics, Dental Research Institute, Dental and Life Sciences Institute, Education and Research Team for Life Science on Dentistry, School of Dentistry, Pusan National University, Yangsan 50612, Republic of Korea
| | - Jung-Bo Huh
- Department of Prosthodontics, Dental Research Institute, Dental and Life Sciences Institute, Education and Research Team for Life Science on Dentistry, School of Dentistry, Pusan National University, Yangsan 50612, Republic of Korea
| | - Eun-Bin Bae
- Department of Prosthodontics, Dental Research Institute, Dental and Life Sciences Institute, Education and Research Team for Life Science on Dentistry, School of Dentistry, Pusan National University, Yangsan 50612, Republic of Korea
- The Shapiro Family Laboratory of Viral Oncology and Aging Research, Section of Restorative Dentistry, UCLA School of Dentistry, Los Angeles, CA 90095, USA
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Muacevic A, Adler JR, Darwich K, Saima R. Radiological Comparative Study Between Conventional and Nano Hydroxyapatite With Platelet-Rich Fibrin (PRF) Membranes for Their Effects on Alveolar Bone Density. Cureus 2022; 14:e32381. [PMID: 36632245 PMCID: PMC9829013 DOI: 10.7759/cureus.32381] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/10/2022] [Indexed: 12/14/2022] Open
Abstract
BACKGROUND The entry of the concept of nanotechnologies into the field of biomaterials has improved the results of their use in regenerative therapies based on the principles of tissue engineering, due to its improvement of the physical properties of materials manufactured in this way, so it has become possible to produce particles of hydroxyapatite in nano sizes. AIM OF THE STUDY This study will evaluate the efficacy of applying nanohydroxyapatite paste and platelet-rich fibrin (PRF) as a barrier membrane in comparison with traditional hydroxyapatite (a powder consisting of macro-sized particles) and PRF as a barrier membrane in symmetrically extracted alveoli of the mandible. MATERIALS AND METHODS The research sample consisted of 40 lower alveoli (symmetrical) of the extracted teeth. The study samples were divided randomly into two groups. Group 1: A paste of nanohydroxyapatite with PRF as a barrier membrane was applied to one side of the extraction. Group 2: Hydroxyapatite powder with PRF as a barrier membrane was applied to the alveolus from the opposite side of Group 1 (the opposite side of the extraction). Three radiographs were performed by cone beam conventional tomography (CBCT) in three consecutive periods to conduct the radiological study (T0: immediately after extraction and grafting, T1: after three months, T2: after six months). RESULTS The mean of the radiographic bone density of the hydroxyapatite powder group at time T0 is 824.36 HU with a standard deviation of ±277.29 HU, and at time T1 is 1119.93 HU with a standard deviation of ±306.93 HU, and at time T2 is 1074.14 HU with a standard deviation of ±223.62 HU, with statistically significant differences when comparing the amount of change in radiographic bone density at time T0 and T1 with P < 0.05, and at time T0 and T2 with P < 0.05, but there were no significant differences when comparing the amount of change in radiographic bone density in T1 and T2 times with P > 0.05. The mean radiographic bone density of the nanohydroxyapatite paste group at time T0 is 629.88 HU with a standard deviation of ±193.64 HU, and at time T1 is 960.67 HU with a standard deviation of ±256.88 HU, and at time T2 is 743.87 HU with a standard deviation of ±180.96 HU, and in the time T0 and T1 with P < 0.05, and in the time T0 and T2 with P < 0.05, and in the time T1 and T2 with P < 0.05. Statistically, significant differences have been found between bone density change T1, T2 in the nanohydroxyapatite paste group and bone density change T1, T2 in the hydroxyapatite powder group P<0.05, which expresses a greater loss of density in the nanohydroxyapatite group, and thus the resorption of the bone graft and the placement of new bone tissue. CONCLUSION Within the limits of our study, the results demonstrated that the use of traditional hydroxyapatite powder and nanohydroxyapatite paste increases the radiographic bone density, nanohydroxyapatite paste has a greater absorbency after 3 months compared with traditional hydroxyapatite powder which helps replace it by natural bone tissue.
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Farhan YAA, Abdelsameaa SES, Elgamily M, Awad S. Impact of Different Preparations of Tooth Graft vs Xenogeneic Bone Graft on Bone Healing: An Experimental Study. J Contemp Dent Pract 2022; 23:1163-1172. [PMID: 37073942 DOI: 10.5005/jp-journals-10024-3438] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/20/2023]
Abstract
AIM This study aims to compare the effect of demineralized xenogeneic tooth graft in its two forms, particulate and block, with bovine xenograft in the healing of a rabbit tibial bone defect model. MATERIALS AND METHODS Two monocortical bony defects were made in the right tibias of 36 rabbits, and were divided into four groups. Group I defects were left empty, while group II, III, and IV were filled with bovine xenograft, demineralized particulate tooth graft, and demineralized perforated block tooth graft, respectively for evaluation of the bone healing process. Three rabbits from each group were euthanized at 2, 4, and 6 weeks after surgery. The bone specimens were processed and stained with hematoxylin and eosin (H&E) and osteopontin (OPN) immunohistochemical staining. The results were subjected to image analysis and quantitative evaluation. RESULTS Demineralized particulate tooth graft showed the best bone healing capacity compared to all other groups at all time points tested, as it showed a large amount of the formed bone, rapid closure of the defect with a significant increase in OPN expression, and the least amount of the residual grafted particles. CONCLUSION In comparison to bovine xenograft and demineralized dentin block graft, the demineralized particulate tooth grafting material is a promising bone grafting substitute as it proved to be osteoconductive, biocompatible, and bioresorbable. CLINICAL SIGNIFICANCE Demineralized tooth grafting material can aid in the regeneration of large bone defects, leading to improvement in the filling of the bone defects which can help in oral and maxillofacial reconstruction.
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Affiliation(s)
| | | | - Mahitabe Elgamily
- Department of Oral Biology, Mansoura University, Mansoura, Egypt, Phone: +01000777402, e-mail:
| | - Sally Awad
- Department of Oral and Maxillofacial Surgery, Mansoura University, Mansoura, Egypt
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Valencia-Llano CH, López-Tenorio D, Saavedra M, Zapata PA, Grande-Tovar CD. Comparison of Two Bovine Commercial Xenografts in the Regeneration of Critical Cranial Defects. Molecules 2022; 27:molecules27185745. [PMID: 36144483 PMCID: PMC9506155 DOI: 10.3390/molecules27185745] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2022] [Revised: 08/20/2022] [Accepted: 08/25/2022] [Indexed: 11/16/2022] Open
Abstract
Autologous bone is the gold standard in regeneration processes. However, there is an endless search for alternative materials in bone regeneration. Xenografts can act as bone substitutes given the difficulty of obtaining bone tissue from patients and before the limitations in the availability of homologous tissue donors. Bone neoformation was studied in critical-size defects created in the parietal bone of 40 adult male Wistar rats, implanted with xenografts composed of particulate bovine hydroxyapatite (HA) and with blocks of bovine hydroxyapatite (HA) and Collagen, which introduces crystallinity to the materials. The Fourier-transform infrared spectroscopy (FTIR) analysis demonstrated the carbonate and phosphate groups of the hydroxyapatite and the amide groups of the collagen structure, while the thermal transitions for HA and HA/collagen composites established mainly dehydration endothermal processes, which increased (from 79 °C to 83 °C) for F2 due to the collagen presence. The xenograft’s X-ray powder diffraction (XRD) analysis also revealed the bovine HA crystalline structure, with a prominent peak centered at 32°. We observed macroporosity and mesoporosity in the xenografts from the morphology studies with heterogeneous distribution. The two xenografts induced neoformation in defects of critical size. Histological, histochemical, and scanning electron microscopy (SEM) analyses were performed 30, 60, and 90 days after implantation. The empty defects showed signs of neoformation lower than 30% in the three periods, while the defects implanted with the material showed partial regeneration. InterOss Collagen material temporarily induced osteon formation during the healing process. The results presented here are promising for bone regeneration, demonstrating a beneficial impact in the biomedical field.
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Affiliation(s)
| | - Diego López-Tenorio
- Grupo Biomateriales Dentales, Escuela de Odontología, Universidad del Valle, Calle 4B # 36-00, Cali 76001, Colombia
| | - Marcela Saavedra
- Grupo de Polímeros, Facultad de Química y Biología, Universidad de Santiago de Chile (USACH), Santiago 9170020, Chile
| | - Paula A. Zapata
- Grupo de Polímeros, Facultad de Química y Biología, Universidad de Santiago de Chile (USACH), Santiago 9170020, Chile
| | - Carlos David Grande-Tovar
- Grupo de Investigación de Fotoquímica y Fotobiología, Universidad del Atlántico, Carrera 30 Número 8-49, Puerto Colombia 081008, Colombia
- Correspondence: ; Tel.: +57-5-3599-484
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Comparison of rhBMP-2 in Combination with Different Biomaterials for Regeneration in Rat Calvaria Critical-Size Defects. BIOMED RESEARCH INTERNATIONAL 2022; 2022:6281641. [PMID: 35509708 PMCID: PMC9061001 DOI: 10.1155/2022/6281641] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/08/2021] [Accepted: 03/25/2022] [Indexed: 12/31/2022]
Abstract
Regeneration of critical bone defects requires the use of biomaterials. The incorporation of osteoinductive agents, such as bone morphogenetic proteins (BMPs), improves bone formation. This study aimed to compare the efficacy of rhBMP-2 in combination with different materials for bone regeneration in critical-sized rat calvarial defects. This was an experimental animal study using 30 rats. In each rat, two 5-mm critical-size defects were made in the calvaria (60 bone defects in total) using a trephine. All rats were randomized to one of the six groups: control (C), autograft + rhBMP-2 (A), absorbable collagen sponge + rhBMP-2 (ACS), β-tricalcium phosphate + rhBMP-2 (B-TCP), bovine xenograft + rhBMP-2 (B), and hydroxyapatite + rhBMP-2 (HA). The outcome was assessed after 4 and 8 weeks using histological description and the histological bone healing scale. Statistical analysis was performed using the Kruskal-Wallis and Mann–Whitney U tests, with a p-value set at 0.05. The average bone healing scores per group were as follows: C group, 12.5; A group, 26.5; ACS group, 18.8; B-TCP group, 26.2; HA group, 20.9; and B group, 20.9. The C group showed a significant difference between weeks 4 and 8 (p = 0.032). Among the 4-week groups, the C group showed a significant difference compared to A (p = 0.001), ACS (p = 0.017), and B-TCP (p = 0.005) groups. The 8-week experimental group did not show any significant differences between the groups. The 5-mm critical size defect in rat calvaria requires the use of bone biomaterials to heal at 4 and 8 weeks. rhBMP-2, as applied in this study, showed no difference in new bone formation when combined with bovine, B-TCP, or HA biomaterials.
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11
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Gomez J, Bergamo ET, Tovar N, Talib HS, Pippenger BE, Herdia V, Cox M, Coelho PG, Witek L. Microtomographic reconstruction of mandibular defects treated with xenografts and collagen-based membranes: A pre-clinical minipig model. Med Oral Patol Oral Cir Bucal 2021; 26:e825-e833. [PMID: 34564687 PMCID: PMC8601645 DOI: 10.4317/medoral.24811] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2021] [Accepted: 07/16/2021] [Indexed: 11/05/2022] Open
Abstract
BACKGROUND The goal of this study was to evaluate hard tissue response following guided bone regeneration using commercially available bovine bone grafts and collagen membranes; bilayer collagen membrane and porcine pericardium-based membrane, by means of a non-destructive three-dimensional (3D) computerized volumetric analysis following microtomography reconstruction. MATERIAL AND METHODS Bone regenerative properties of various bovine bone graft materials were evaluated in the Göttingen minipig model. Two standardized intraosseous defects (15mm x 8mm x 8mm) were created bilaterally of the mandible of eighteen animals (n=72 defects). Groups were nested within the same subject and randomly distributed among the sites: (i) negative control (no graft and membrane), (ii) bovine bone graft/bilayer collagen membrane (BOB) (iii) Bio-Oss® bone graft/porcine pericardium-based membrane (BOJ) and (iv) cerabone® bone graft/porcine pericardium-based membrane (CJ). Samples were harvested at 4, 8, and 12-week time points (n=6 animal/time point). Segments were scanned using computerized microtomography (μCT) and three dimensionally reconstructed utilizing volumetric reconstruction software. Statistical analyses were performed using IBM SPSS with a significance level of 5%. RESULTS From a temporal perspective, tridimensional evaluation revealed gradual bone ingrowth with the presence of particulate bone grafts bridging the defect walls, and mandibular architecture preservation over time. Volumetric analysis demonstrated no significant difference between all groups at 4 weeks (p>0.127). At 8 and 12 weeks there was a higher percentage of new bone formation for control and CJ groups when compared to BOB and BOJ groups (p<0.039). The natural bovine bone graft group showed more potential for graft resorption over time relative to bovine bone graft, significantly different between 4 and 8 weeks (p<0.003). CONCLUSIONS Volumetric analysis yielded a favorable mandible shape with respect to time through the beneficial balance between graft resorption/bone regenerative capacity for the natural bovine bone graft.
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Affiliation(s)
- J Gomez
- New York University College of Dentistry Department of Biomaterials 433 1st Ave, Room 842, New York, USA
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12
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Murakami T, Matsugami D, Yoshida W, Imamura K, Bizenjima T, Seshima F, Saito A. Healing of Experimental Periodontal Defects Following Treatment with Fibroblast Growth Factor-2 and Deproteinized Bovine Bone Mineral. Biomolecules 2021; 11:biom11060805. [PMID: 34072351 PMCID: PMC8226676 DOI: 10.3390/biom11060805] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2021] [Revised: 05/25/2021] [Accepted: 05/26/2021] [Indexed: 12/17/2022] Open
Abstract
The aim of this study was to investigate the effects of fibroblast growth factor (FGF)-2 used in combination with deproteinized bovine bone mineral (DBBM) on the healing of experimental periodontal defects. Periodontal defects created in rats were treated by FGF-2, DBBM, FGF-2 + DBBM, or left unfilled. Microcomputed tomography, histological, and immunohistochemical examinations were used to evaluate healing. In vitro cell viability/proliferation on DBBM with/without FGF-2 was assessed by WST-1. Cell behavior was analyzed using scanning electron and confocal laser scanning microscopy. Osteogenic differentiation was evaluated by staining with alkaline phosphatase and alizarin red. Bone volume fraction was significantly greater in FGF-2 and FGF-2 + DBBM groups than in other groups at 2 and 4 weeks postoperatively. In histological assessment, newly formed bone in FGF-2 and FGF-2 + DBBM groups appeared to be greater than other groups. Significantly greater levels of proliferating cell nuclear antigen-, vascular endothelial growth factor-, and osterix-positive cells were observed in FGF-2 and FGF-2 + DBBM groups compared to Unfilled group. In vitro, addition of FGF-2 to DBBM promoted cell viability/proliferation, attachment/spreading, and osteogenic differentiation. The combination therapy using FGF-2 and DBBM was similarly effective as FGF-2 alone in the healing of experimental periodontal defects. In certain bone defect configurations, the combined use of FGF-2 and DBBM may enhance healing via promotion of cell proliferation, angiogenesis, and osteogenic differentiation.
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Affiliation(s)
- Tasuku Murakami
- Department of Periodontology, Tokyo Dental College, Chiyoda-ku, Tokyo 1010061, Japan; (T.M.); (D.M.); (W.Y.); (K.I.); (F.S.)
| | - Daisuke Matsugami
- Department of Periodontology, Tokyo Dental College, Chiyoda-ku, Tokyo 1010061, Japan; (T.M.); (D.M.); (W.Y.); (K.I.); (F.S.)
- Oral Health Science Center, Tokyo Dental College, Chiyoda-ku, Tokyo 1010061, Japan
| | - Wataru Yoshida
- Department of Periodontology, Tokyo Dental College, Chiyoda-ku, Tokyo 1010061, Japan; (T.M.); (D.M.); (W.Y.); (K.I.); (F.S.)
| | - Kentaro Imamura
- Department of Periodontology, Tokyo Dental College, Chiyoda-ku, Tokyo 1010061, Japan; (T.M.); (D.M.); (W.Y.); (K.I.); (F.S.)
- Oral Health Science Center, Tokyo Dental College, Chiyoda-ku, Tokyo 1010061, Japan
| | - Takahiro Bizenjima
- Chiba Dental Center, Tokyo Dental College, Mihama-ku, Chiba 2618502, Japan;
| | - Fumi Seshima
- Department of Periodontology, Tokyo Dental College, Chiyoda-ku, Tokyo 1010061, Japan; (T.M.); (D.M.); (W.Y.); (K.I.); (F.S.)
| | - Atsushi Saito
- Department of Periodontology, Tokyo Dental College, Chiyoda-ku, Tokyo 1010061, Japan; (T.M.); (D.M.); (W.Y.); (K.I.); (F.S.)
- Oral Health Science Center, Tokyo Dental College, Chiyoda-ku, Tokyo 1010061, Japan
- Correspondence:
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13
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Bornert F, Herber V, Sandgren R, Witek L, Coelho PG, Pippenger BE, Shahdad S. Comparative barrier membrane degradation over time: Pericardium versus dermal membranes. Clin Exp Dent Res 2021; 7:711-718. [PMID: 33949796 PMCID: PMC8543466 DOI: 10.1002/cre2.414] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2020] [Revised: 02/01/2021] [Accepted: 02/03/2021] [Indexed: 11/25/2022] Open
Abstract
Objective The effectiveness of GBR procedures for the reconstruction of periodontal defects has been well documented. The objective of this investigation was to evaluate the degradation kinetics and biocompatibility of two resorbable collagen membranes in conjunction with a bovine xenograft material. Materials and Methods Lower premolars and first molars were extracted from 18 male Yucatan minipigs. After 4 months of healing, standardized semi‐saddle defects were created (12 mm × 8 mm × 8 mm [l˙̇ × W˙ × d]), with 10 mm between adjacent defects. The defects were filled with a bovine xenograft and covered with a either the bilayer collagen membrane (control) or the porcine pericardium‐derived collagen membrane (test). Histological analysis was performed after 4, 8, and 12 weeks of healing and the amount of residual membrane evaluated. Non‐inferiority was calculated using the Brunner‐Langer mixed regression model. Results Histological analysis indicated the presence of residual membrane in both groups at all time points, with significant degradation noted in both groups at 12 weeks compared to 4 weeks (p = .017). No significant difference in ranked residual membrane scores between the control and test membranes was detected at any time point. Conclusions The pericardium‐derived membrane was shown to be statistically non‐inferior to the control membrane with respect to resorption kinetics and barrier function when utilized for guided bone regeneration in semi‐saddle defects in minipigs. Further evaluation is necessary in the clinical setting.
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Affiliation(s)
- Fabien Bornert
- Faculty of Dental Surgery, Department of Oral Surgery, University of Strasbourg, Strasbourg, France
| | - Valentin Herber
- Faculty of Dental Surgery, Department of Oral Surgery, University of Strasbourg, Strasbourg, France.,Department of Dentistry and oral Health, Division of Oral Surgery and Orthodontics, Medical University of Graz, Graz, Austria
| | | | - Lukasz Witek
- Department of Biomaterials, New York University College of Dentistry, New York, New York, USA.,Department of Biomedical Engineering, New York University Tandon School of Engineering, Brooklyn, New York, USA
| | - Paulo G Coelho
- Department of Biomaterials, New York University College of Dentistry, New York, New York, USA.,Department of Mechanical and Aerospace Engineering, New York University Tandon School of Engineering, Brooklyn, New York, USA.,Hansjörg Wyss Department of Plastic Surgery, New York University School of Medicine, New York, New York, USA
| | - Benjamin E Pippenger
- Department of Preclinical & Translational Research, Institut Straumann AG, Basel, Switzerland.,Center for Dental Medicine, Department of Periodontology, University of Zurich, Zurich, Switzerland
| | - Shakeel Shahdad
- Institute of Dentistry, Barts and The London School of Medicine and Dentistry, Queen Mary University of London, London, UK
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14
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Brito MA, Mecca LEA, Sedoski TDS, Mroczek T, Claudino M, Araujo MRD. Histological Comparison between Biphasic Calcium Phosphate and Deproteinized Bovine Bone on Critical-Size Bone Defects. Braz Dent J 2021; 32:26-33. [PMID: 33913998 DOI: 10.1590/0103-6440202103583] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2020] [Accepted: 07/15/2020] [Indexed: 11/21/2022] Open
Abstract
The limited options for bone repair have led to an extensive research of the field and the development of alloplastic and xenogeneic grafts. The purpose of this study was to evaluate bone repair with two bone substitutes: deproteinized bovine bone (DBB) and biphasic calcium phosphate ceramic (BCP) in critical-size defect. A total of 8-mm defects were made in the parietal bones of rabbits (n=12). The animals were divided into three experimental groups: sham (defect filled with a blood clot), DBB (defect filled with DBB), and BCP (defect filled with BCP). After the experimental periods of 15 and 45 days, the animals were euthanized and submitted to histomorphometric analysis. The total defect area, mineralized tissue area, biomaterial area, and soft tissue area were evaluated. A greater amount of immature bone tissue and biomaterial particles were observed in the BCP group compared to DBB and sham at 45 days (p<0.05). There was no difference in the qualitative pattern of bone deposition between DBB and BCP. However, the sham group did not show osteoid islands along with the defect, presenting a greater amount of collagen fibers as well in relation to the DBB and BCP groups. There was a greater number of inflammatory cells in the DBB at 45 days compared to BCP and sham groups. In conclusion, BCP and DBB are options for optimizing the use of bone grafts for maxillofacial rehabilitation. Bone defects treated with BCP showed greater deposition of bone tissue at 45 days.
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Affiliation(s)
| | | | | | - Tayline Mroczek
- Departament of Pharmaceutical Sciences, UEPG - Universidade Estadual de Ponta Grossa, PR, Brazil
| | - Marcela Claudino
- Departament of Dentistry, UEPG - Universidade Estadual de Ponta Grossa, PR, Brazil
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15
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Picciolo G, Peditto M, Irrera N, Pallio G, Altavilla D, Vaccaro M, Picciolo G, Scarfone A, Squadrito F, Oteri G. Preclinical and Clinical Applications of Biomaterials in the Enhancement of Wound Healing in Oral Surgery: An Overview of the Available Reviews. Pharmaceutics 2020; 12:E1018. [PMID: 33114407 PMCID: PMC7692581 DOI: 10.3390/pharmaceutics12111018] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2020] [Revised: 10/19/2020] [Accepted: 10/21/2020] [Indexed: 02/07/2023] Open
Abstract
Oral surgery has undergone dramatic developments in recent years due to the use of biomaterials. The aim of the present review is to provide a general overview of the current biomaterials used in oral surgery and to comprehensively outline their impact on post-operative wound healing. A search in Medline was performed, including hand searching. Combinations of searching terms and several criteria were applied for study identification, selection, and inclusion. The literature was searched for reviews published up to July 2020. Reviews evaluating the clinical and histological effects of biomaterials on post-operative wound healing in oral surgical procedures were included. Review selection was performed by two independent reviewers. Disagreements were resolved by a third reviewer, and 41 reviews were included in the final selection. The selected papers covered a wide range of biomaterials such as stem cells, bone grafts, and growth factors. Bioengineering and biomaterials development represent one of the most promising perspectives for the future of oral surgery. In particular, stem cells and growth factors are polarizing the focus of this ever-evolving field, continuously improving standard surgical techniques, and granting access to new approaches.
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Affiliation(s)
- Giacomo Picciolo
- Department of Biomedical and Dental Sciences and Morphological and Functional Imaging, University of Messina, Via C. Valeria, 98125 Messina, Italy; (G.P.); (M.P.); (D.A.); (G.O.)
| | - Matteo Peditto
- Department of Biomedical and Dental Sciences and Morphological and Functional Imaging, University of Messina, Via C. Valeria, 98125 Messina, Italy; (G.P.); (M.P.); (D.A.); (G.O.)
| | - Natasha Irrera
- Department of Clinical and Experimental Medicine, University of Messina, Via C. Valeria, 98125 Messina, Italy; (N.I.); (G.P.); (M.V.); (A.S.)
- SunNutraPharma, Academic Spin-Off Company of the University of Messina, Via C. Valeria, 98125 Messina, Italy;
| | - Giovanni Pallio
- Department of Clinical and Experimental Medicine, University of Messina, Via C. Valeria, 98125 Messina, Italy; (N.I.); (G.P.); (M.V.); (A.S.)
| | - Domenica Altavilla
- Department of Biomedical and Dental Sciences and Morphological and Functional Imaging, University of Messina, Via C. Valeria, 98125 Messina, Italy; (G.P.); (M.P.); (D.A.); (G.O.)
- SunNutraPharma, Academic Spin-Off Company of the University of Messina, Via C. Valeria, 98125 Messina, Italy;
| | - Mario Vaccaro
- Department of Clinical and Experimental Medicine, University of Messina, Via C. Valeria, 98125 Messina, Italy; (N.I.); (G.P.); (M.V.); (A.S.)
| | - Giuseppe Picciolo
- SunNutraPharma, Academic Spin-Off Company of the University of Messina, Via C. Valeria, 98125 Messina, Italy;
| | - Alessandro Scarfone
- Department of Clinical and Experimental Medicine, University of Messina, Via C. Valeria, 98125 Messina, Italy; (N.I.); (G.P.); (M.V.); (A.S.)
| | - Francesco Squadrito
- Department of Clinical and Experimental Medicine, University of Messina, Via C. Valeria, 98125 Messina, Italy; (N.I.); (G.P.); (M.V.); (A.S.)
- SunNutraPharma, Academic Spin-Off Company of the University of Messina, Via C. Valeria, 98125 Messina, Italy;
| | - Giacomo Oteri
- Department of Biomedical and Dental Sciences and Morphological and Functional Imaging, University of Messina, Via C. Valeria, 98125 Messina, Italy; (G.P.); (M.P.); (D.A.); (G.O.)
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16
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Gashtasbi F, Hasannia S, Hasannia S, Mahdi Dehghan M, Sarkarat F, Shali A. Comparative study of impact of animal source on physical, structural, and biological properties of bone xenograft. Xenotransplantation 2020; 27:e12628. [PMID: 32654298 DOI: 10.1111/xen.12628] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2020] [Revised: 05/21/2020] [Accepted: 06/14/2020] [Indexed: 11/28/2022]
Abstract
BACKGROUND Due to the unique features of xenografts including large supply from donors, minimal risk of human disease transmission, and the lower cost of preparation and production compared to autografts and allografts, they are considered as attractive alternatives to traditional bone grafts. The animal source accessibility and production process have a direct correlation with the cost and quality of the final product. To evaluate whether the animal source of the bone has any effect on the physicochemical and histological properties of the final xenograft, three deproteinized bone grafts were prepared from sources that are easily available in Iran, including the bovine (DBB), camel (DCB), and ostrich (DOB). METHODS In the current study, three bone substitute materials intended to serve as bone xenografts were derived from the cow, camel, and ostrich using the thermochemical processing procedure. The physicochemical properties, in vitro cytocompatibility and in vivo bone regeneration capability of the prepared deproteinized bone grafts, were assessed and compared with OCS-B as an approved product in the global market. RESULTS The physical tests confirmed the hydroxyapatite nature of the final products. SEM and BET analysis showed morphological and structural differences between the products due to differences in the animal sources. In vitro studies showed the prepared deproteinized bone was free of processing chemicals and was biocompatible with mouse fibroblast and myoblast cell lines. In vivo studies revealed that the bone formation capability of the DBB, DCB, and DOB has no significant difference with one another and with OCS-B despite their structural differences. The DCB showed the highest graft residue after two month. No signs of immunogenicity were observed in the study groups compared to the blank group. CONCLUSION DBB, DCB, and DOB may offer a favorable cell response and bone regeneration similar to those of commercial bovine bone material.
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Affiliation(s)
- Fatemeh Gashtasbi
- Nova Teb Research Laboratory, Dental Equipment and Biomaterials Incubation Center, Tehran University of Medical Sciences, Tehran, Iran
| | - Shahriar Hasannia
- Nova Teb Research Laboratory, Dental Equipment and Biomaterials Incubation Center, Tehran University of Medical Sciences, Tehran, Iran
| | - Sadegh Hasannia
- Nova Teb Research Laboratory, Dental Equipment and Biomaterials Incubation Center, Tehran University of Medical Sciences, Tehran, Iran.,Department of Biochemistry, Faculty of Biological Sciences, Tarbiat Modares University, Tehran, Iran
| | - Mohammad Mahdi Dehghan
- Department of Surgery and Radiology, Faculty of Veterinary Medicine, University of Tehran, Tehran, Iran
| | - Farzin Sarkarat
- Department of Oral and Maxillofacial Surgery, Craniomaxillofacial Research Center, Dentistry Branch of Islamic Azad University of Medical Sciences, Tehran, Iran
| | - Abbas Shali
- Nova Teb Research Laboratory, Dental Equipment and Biomaterials Incubation Center, Tehran University of Medical Sciences, Tehran, Iran
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17
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van Oirschot BAJA, Jansen JA, van de Ven CJJM, Geven EJW, Gossen JA. Evaluation of Collagen Membranes Coated with Testosterone and Alendronate to Improve Guided Bone Regeneration in Mandibular Bone Defects in Minipigs. J Oral Maxillofac Res 2020; 11:e4. [PMID: 33262883 PMCID: PMC7644271 DOI: 10.5037/jomr.2020.11304] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2020] [Accepted: 09/27/2020] [Indexed: 04/19/2023]
Abstract
OBJECTIVES The purpose of the present in vivo study was to evaluate whether pericard collagen membranes coated with ancillary amounts of testosterone and alendronate in a poly-lactic glycolic acid (PLGA) carrier as compared to uncoated membranes will improve early bone regeneration. MATERIAL AND METHODS In each of 16 minipigs, four standardized mandibular intraosseous defects were made bilaterally. The defects were filled with Bio-Oss® granules and covered with a non-coated or coated membrane. Membranes were spray-coated with 4 layers of PLGA containing testosterone and alendronate resulting in 20, 50 or 125 μg/cm2 of testosterone and 20 µg/cm2 alendronate (F20, F50, F125). Non-coated membranes served as controls (F0). Animals were sacrificed at 6 and 12 weeks after treatment. Qualitative and quantitative histological evaluations of bone regeneration were performed. Differences between groups were assessed by paired Student's t-test. RESULTS Light microscopical analysis showed new bone formation that was in close contact with the Bio-Oss® surface without an intervening non-mineralized tissue layer. Histomorphometric analysis of newly formed bone showed a significant 20% increase in area in the F125 coated membrane treated defects (40 [SD 10]%) compared to the F0 treated defects after 6 weeks (33 [SD 10]%, P = 0.013). At week 12, the total percentage of new bone was increased compared to week 6, but no increase in newly formed bone compared to F0 was observed. CONCLUSIONS The data from this in vivo study indicate that F125 collagen membranes coated with testosterone and alendronate resulted in superior bone formation (+24%) when normalized to control sites using uncoated membranes.
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Affiliation(s)
- Bart A J A van Oirschot
- Department of Dentistry - Biomaterials, Radboudumc, Radboud University Nijmegen, NijmegenThe Netherlands
| | - John A Jansen
- Department of Dentistry - Biomaterials, Radboudumc, Radboud University Nijmegen, NijmegenThe Netherlands
| | - Cindy J J M van de Ven
- Department of Dentistry - Biomaterials, Radboudumc, Radboud University Nijmegen, NijmegenThe Netherlands
- Osteo-Pharma BV, OssThe Netherlands
| | - Edwin J W Geven
- Department of Dentistry - Biomaterials, Radboudumc, Radboud University Nijmegen, NijmegenThe Netherlands
- Osteo-Pharma BV, OssThe Netherlands
| | - Jan A Gossen
- Department of Dentistry - Biomaterials, Radboudumc, Radboud University Nijmegen, NijmegenThe Netherlands
- Osteo-Pharma BV, OssThe Netherlands
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18
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Comparative Evaluation of Bone Repair with Four Different Bone Substitutes in Critical Size Defects. Int J Biomater 2020; 2020:5182845. [PMID: 32528537 PMCID: PMC7262656 DOI: 10.1155/2020/5182845] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2020] [Accepted: 05/11/2020] [Indexed: 02/02/2023] Open
Abstract
This study evaluated the osteoconductive potential of four biomaterials used to fill bone defects. For this, 24 male Albino rabbits were submitted to the creation of a bilateral 8 mm calvarial bone defect. The animals were divided into four groups-bovine hydroxyapatite, Bio-Oss® (BIO); Lumina-Bone Porous® (LBP); Bonefill® (BFL); and an alloplastic material, Clonos® (CLN)-and were euthanized at 14 and 40 days. The samples were subjected to histological and histometric analysis for newly formed bone area. Immunohistochemical analysis for Runt-related transcription factor 2 (Runx2), vascular endothelial growth factor (VEGF), and osteocalcin (OC) was performed. After statistical analysis, the CLN group showed greater new bone formation (NB) in both periods analyzed (p < 0.05). At 14 days, the NB showed greater values in BIO in relation to LBP and BFL groups; however, after 40 days, the LBP group surpassed the results of BIO (p < 0.001). The immunostaining showed a decrease in Runx2 intensity in BIO after 40 days, while it increased for LBP (p < 0.05). The CLN showed increased OC compared to the other groups in both periods analyzed (p < 0.05). Therefore, CLN showed the best osteoconductive behavior in critical defects in rabbit calvaria, and BFL showed the lowest osteoconductive property.
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19
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Klein Y, Shani-Kdoshim S, Maimon A, Fleissig O, Levin-Talmor O, Meirow Y, Garber-Berkstein J, Leibovich A, Stabholz A, Chaushu S, Polak D. Bovine Bone Promotes Osseous Protection via Osteoclast Activation. J Dent Res 2020; 99:820-829. [PMID: 32167856 DOI: 10.1177/0022034520911647] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
The current study aimed at investigating the long-term biological mechanisms governing bone regeneration in osseous defects filled with bovine bone (BB). Tooth extraction sockets were filled with BB or left unfilled for natural healing in a C57BL/6 mouse alveolar regeneration bone model (n = 12). Seven weeks later, the alveolar bone samples were analyzed histologically with hematoxylin/eosin and tartrate-resistant acid phosphatase staining. A separate group (n = 10) was used for RNA sequencing. Osteoclast inhibition was induced by zoledronic acid (ZA) administration at 2 wk postextraction in a third group (n = 28) for examination of osseous changes and cellular functions with micro-computed tomography and quantitative reverse transcription polymerase chain reaction, respectively. Histological and radiological osseous healing was observed in both BB-filled and normal-healing sockets. However, BB regenerated bone showed significant robust expression of genes associated with bone homeostasis and osteoclasts' function. Osteoclasts' inhibition in BB-filled sockets led to decreased bone resorption markers and reduced bone formation to a greater extent than that observed in osteoclasts' inhibition with natural healing. BB displays long-term biologically active properties, despite a naive osseous histological appearance. These include activation of osteoclasts, which in turn promotes osseous remodeling and maturation of ossified bone.
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Affiliation(s)
- Y Klein
- Department of Orthodontics, Hadassah Faculty of Dental Medicine, Hebrew University, Jerusalem, Israel.,Department of Periodontology, Hadassah Faculty of Dental Medicine, Hebrew University, Jerusalem, Israel.,Department of Biochemistry, Israel-Canada Medical Research Institute, Faculty of Medicine, Hebrew University, Jerusalem, Israel
| | - S Shani-Kdoshim
- Department of Periodontology, Hadassah Faculty of Dental Medicine, Hebrew University, Jerusalem, Israel
| | - A Maimon
- The Institute of Dental Sciences, Hadassah Medical Center, Hebrew University, Jerusalem, Israel
| | - O Fleissig
- Department of Orthodontics, Hadassah Faculty of Dental Medicine, Hebrew University, Jerusalem, Israel
| | - O Levin-Talmor
- The Institute of Dental Sciences, Hadassah Medical Center, Hebrew University, Jerusalem, Israel
| | - Y Meirow
- The Concern Foundation Laboratories at The Lautenberg Center for Immunology and Cancer Research, Israel-Canada Medical Research Institute, Faculty of Medicine, The Hebrew University, Jerusalem, Israel
| | - J Garber-Berkstein
- Department of Orthodontics, Hadassah Faculty of Dental Medicine, Hebrew University, Jerusalem, Israel
| | - A Leibovich
- Department of Orthodontics, Hadassah Faculty of Dental Medicine, Hebrew University, Jerusalem, Israel
| | - A Stabholz
- Department of Periodontology, Hadassah Faculty of Dental Medicine, Hebrew University, Jerusalem, Israel
| | - S Chaushu
- Department of Orthodontics, Hadassah Faculty of Dental Medicine, Hebrew University, Jerusalem, Israel
| | - D Polak
- Department of Periodontology, Hadassah Faculty of Dental Medicine, Hebrew University, Jerusalem, Israel
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Santos GG, Nunes VLC, Marinho SMOC, Santos SRA, Rossi AM, Miguel FB. Biological behavior of magnesium-substituted hydroxyapatite during bone repair. BRAZ J BIOL 2020; 81:53-61. [PMID: 32074171 DOI: 10.1590/1519-6984.217769] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2018] [Accepted: 10/27/2019] [Indexed: 11/21/2022] Open
Abstract
The aim of this study was to analyze the biological behavior and osteogenic potential of magnesium (Mg) substituted hydroxyapatite (HA) microspheres, implanted in a critical bone defect, considering that this ion is of great clinical interest, since it is closely associated with homeostasis and bone mineralization. For the purpose of this study, 30 rats were used to compose three experimental groups: GI - bone defect filled with HA microspheres; GII - bone defect filled with HA microspheres replaced with Mg; GIII - empty bone defect; evaluated at biological points of 15 and 45 days. The histological results, at 15 days, showed, in all the groups, a discrete chronic inflammatory infiltrate; biomaterials intact and surrounded by connective tissue; and bone neoformation restricted to the borders. At 45 days, in the GI and GII groups, an inflammatory response of discrete granulomatous chronic type was observed, and in the GIII there was a scarce presence of mononuclear inflammatory cells; in GI and GII, the microspheres were seen to be either intact or fragmented, surrounded by fibrous connective tissue rich in blood vessels; and discrete bone neoformation near the edges and surrounding some microspheres. In GIII, the mineralization was limited to the borders and the remaining area was filled by fibrous connective tissue. It was concluded that the biomaterials were biocompatible and osteoconductive, and the percentage of Mg used as replacement ion in the HA did not favor a greater bone neoformation in relation to the HA without the metal.
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Affiliation(s)
- G G Santos
- Laboratório de Ciências e Tecnologias da Saúde - LaCTS, Centro de Ciências da Saúde - CCS, Universidade Federal do Recôncavo da Bahia - UFRB, Av. Carlos Amaral, 1015, Cajueiro, CEP 44574-490, Santo Antônio de Jesus, BA, Brasil.,Laboratório de Bioengenharia Tecidual e Biomateriais - LBTB, Instituto de Ciências da Saúde - ICS, Universidade Federal da Bahia - UFBA, Av. Reitor Miguel Calmon, s/n, Vale do Canela, CEP 40110-100, Salvador, BA, Brasil
| | - V L C Nunes
- Faculdade de Medicina - FAMED, Universidade Federal da Bahia - UFBA, Av. Reitor Miguel Calmon, s/n, Canela, CEP 40110-903, Salvador, BA, Brasil.,Escola Bahiana de Medicina e Saúde Pública - EBMSP, Av. Dom João VI, 275, Brotas, CEP 40290-000, Salvador, BA, Brasil
| | - S M O C Marinho
- Laboratório de Ciências e Tecnologias da Saúde - LaCTS, Centro de Ciências da Saúde - CCS, Universidade Federal do Recôncavo da Bahia - UFRB, Av. Carlos Amaral, 1015, Cajueiro, CEP 44574-490, Santo Antônio de Jesus, BA, Brasil
| | - S R A Santos
- Laboratório de Biomateriais - LABIOMAT, Centro Brasileiro de Pesquisas Físicas - CBPF, Ministério da Ciência, Tecnologia e Inovação - MCTI, Rua Dr. Xavier Sigaud, 150, Urca, CEP 22290-180, Rio de Janeiro, RJ, Brasil
| | - A M Rossi
- Laboratório de Biomateriais - LABIOMAT, Centro Brasileiro de Pesquisas Físicas - CBPF, Ministério da Ciência, Tecnologia e Inovação - MCTI, Rua Dr. Xavier Sigaud, 150, Urca, CEP 22290-180, Rio de Janeiro, RJ, Brasil
| | - F B Miguel
- Laboratório de Ciências e Tecnologias da Saúde - LaCTS, Centro de Ciências da Saúde - CCS, Universidade Federal do Recôncavo da Bahia - UFRB, Av. Carlos Amaral, 1015, Cajueiro, CEP 44574-490, Santo Antônio de Jesus, BA, Brasil
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Evaluation of New Bone Formation Using Autogenous Tooth Bone Graft Combined with Platelet-Rich Fibrin in Calvarial Defects. J Craniofac Surg 2020; 30:1662-1666. [PMID: 30939548 DOI: 10.1097/scs.0000000000005413] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
Abstract
The purpose of the present study was to evaluate the contributions of autogenous tooth bone graft (ATBG) combined with platelet-rich fibrin (PRF) on new bone formation and bone morphogenetic protein (BMP)-2 in rabbit calvarial defects. Twelve male New Zealand rabbits were used in this study. Three circular bone defects were prepared in each rabbit with a drill. These defects were divided into 3 groups: control, treated with ATBG, and treated with ATBG+PRF. The animals were sacrificed at 28 days. Samples were evaluated by histomorphometric analyses and total augmented area, new bone area and bone density were calculated. In addition, expression of BMP-2 was determined by immunohistochemical staining. The total augmented area, new bone area and bone density were significantly greater in the ATBG group than in the control group (P <0.05). Also, these values were significantly higher in the ATBG+PRF group than the ATBG group (P <0.05). Test groups demonstrated significantly increased BMP-2 levels compared with the control group (P <0.05). The present study suggested that ATBG combined with PRF significantly increased the new bone formation and enhanced bone healing in cranial defects.
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Titsinides S, Karatzas T, Perrea D, Eleftheriadis E, Podaropoulos L, Kalyvas D, Katopodis C, Agrogiannis G. Osseous Healing in Surgically Prepared Bone Defects Using Different Grafting Materials: An Experimental Study in Pigs. Dent J (Basel) 2020; 8:dj8010007. [PMID: 31936576 PMCID: PMC7175133 DOI: 10.3390/dj8010007] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2019] [Revised: 12/21/2019] [Accepted: 01/06/2020] [Indexed: 11/29/2022] Open
Abstract
Regeneration of large jaw bone defects still remains a clinical challenge. To avoid incomplete bone repair, bone grafts have been advocated to support the healing process. This study comparatively evaluated new bone formation among a synthetic graft substitute, a human bone derivative, and a bovine xenograft. Materials were placed in 3 out of the 4 bone cavities, while 1 deficit was left empty, serving as a control, in mono-cortical defects, surgically prepared in the porcine calvaria bone. Animals were randomized in 2 groups and euthanized at 8 and 12 weeks. Harvested tissue specimens were qualitatively evaluated by histology. New bone formation was quantitatively measured by histomorphometry. Maximum new bone formation was noticed in defects grafted with beta-tricalcium phosphate b-TCP compared to the other bone substitutes, at 8 and 12 weeks post-surgery. Bovine and human allograft induced less new bone formation compared to empty bone cavity. Histologic analysis revealed that b-TCP was absorbed and substituted significantly, while bovine and human allograft was maintained almost intact in close proximity with new bone. Based on our findings, higher new bone formation was detected in defects filled with b-TCP when compared to bovine and human graft substitutes.
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Affiliation(s)
- Savvas Titsinides
- Dental School, University of Athens, 2 Thivon Street, 11527 Athens, Greece
- Correspondence: ; Tel.: +30-69-4817-2729
| | - Theodore Karatzas
- Laboratory of Experimental Surgery and Surgical Research “N. S. Christeas”, Medical School, University of Athens, 75 M. Assias Street, 11527 Athens, Greece; (T.K.); (D.P.)
| | - Despoina Perrea
- Laboratory of Experimental Surgery and Surgical Research “N. S. Christeas”, Medical School, University of Athens, 75 M. Assias Street, 11527 Athens, Greece; (T.K.); (D.P.)
| | - Efstathios Eleftheriadis
- Department of Oral and Maxillofacial Surgery, Dental School, University of Athens, 2 Thivon Street, 11527 Athens, Greece; (E.E.); (L.P.); (D.K.)
| | - Leonidas Podaropoulos
- Department of Oral and Maxillofacial Surgery, Dental School, University of Athens, 2 Thivon Street, 11527 Athens, Greece; (E.E.); (L.P.); (D.K.)
| | - Demos Kalyvas
- Department of Oral and Maxillofacial Surgery, Dental School, University of Athens, 2 Thivon Street, 11527 Athens, Greece; (E.E.); (L.P.); (D.K.)
| | | | - George Agrogiannis
- 1st Department of Pathology, Medical School, University of Athens, 75 M. Assias Street, 11527 Athens, Greece;
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Titsinides S, Agrogiannis G, Karatzas T. Bone grafting materials in dentoalveolar reconstruction: A comprehensive review. JAPANESE DENTAL SCIENCE REVIEW 2019; 55:26-32. [PMID: 30733842 PMCID: PMC6354279 DOI: 10.1016/j.jdsr.2018.09.003] [Citation(s) in RCA: 94] [Impact Index Per Article: 18.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2018] [Accepted: 09/10/2018] [Indexed: 12/11/2022] Open
Abstract
Bone deficits of the jaws are often attributed to accidents, surgical removal of benign lesions or malignant neoplasms, congenital abnormalities, periodontal inflammation, tooth abscess or extraction and finally jaw atrophy due to advanced age or general disease. These bone defects require rehabilitation for a variety of reasons, e.g. maintaining the normal anatomic outline, eliminating empty space, aesthetic restoration and placing dental implants. Today, several techniques have been developed to eliminate these bone deformities including bone grafting, guided bone regeneration, distraction osteogenesis, use of growth factors and stem cells. Bone grafts consist of materials of natural or synthetic origin, implanted into the bone defect site, documented to possess bone healing properties. Currently, a variety of bone restorative materials with different characteristics are available, possesing different properties. Despite years of effort the 'perfect' bone reconstruction material has not yet been developed, a further effort is required to make this objective feasible. The aim of this article is to provide a contemporary and comprehensive overview of the grafting materials that can be applied in dentoalveolar reconstruction, discussing their properties, advantages and disadvantages, enlightening the present and the future perspectives in the field of bone regeneration.
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Affiliation(s)
- S. Titsinides
- Department of Oral Medicine and Pathology, Dental School, University of Athens, Athens, Greece
| | - G. Agrogiannis
- 1st Department of Pathology, Medical School, University of Athens, Athens, Greece
| | - T. Karatzas
- 2nd Department of Propedeutic Surgery, Laiko General Hospital, Medical School, University of Athens, Athens, Greece
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Saha S, Yang XB, Wijayathunga N, Harris S, Feichtinger GA, Davies RPW, Kirkham J. A biomimetic self-assembling peptide promotes bone regeneration in vivo: A rat cranial defect study. Bone 2019; 127:602-611. [PMID: 31351196 DOI: 10.1016/j.bone.2019.06.020] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/13/2019] [Revised: 05/31/2019] [Accepted: 06/20/2019] [Indexed: 01/09/2023]
Abstract
Rationally designed, pH sensitive self-assembling β-peptides (SAPs) which are capable of reversibly switching between fluid and gel phases in response to environmental triggers are potentially useful injectable scaffolds for skeletal tissue engineering applications. SAP P11-4 (CH3COQQRFEWEFEQQNH2) has been shown to nucleate hydroxyapatite mineral de novo and has been used in dental enamel regeneration. We hypothesised that addition of mesenchymal stromal cells (MSCs) would enhance the in vivo effects of P11-4 in promoting skeletal tissue repair. Cranial defects were created in athymic rats and filled with either Bio-Oss® (anorganic bone chips) or P11-4 ± human dental pulp stromal cells (HDPSCs). Unfilled defects served as controls. After 4 weeks, only those defects filled with P11-4 alone showed significantly increased bone regeneration (almost complete healing), compared to unfilled control defects, as judged using quantitative micro-CT, histology and immunohistochemistry. In silico modelling indicated that fibril formation may be essential for any mineral nucleation activity. Taken together, these data suggest that self-assembling peptides are a suitable scaffold for regeneration of bone tissue in a one step, cell-free therapeutic approach.
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Affiliation(s)
- Sushmita Saha
- Department of Oral Biology, School of Dentistry, St James's University Hospital, University of Leeds, Leeds, UK
| | - Xuebin B Yang
- Department of Oral Biology, School of Dentistry, St James's University Hospital, University of Leeds, Leeds, UK
| | | | - Sarah Harris
- School of Physics and Astronomy, Astbury Centre for Structural and Molecular Biology, University of Leeds, Leeds, UK
| | - Georg A Feichtinger
- Department of Oral Biology, School of Dentistry, St James's University Hospital, University of Leeds, Leeds, UK
| | - R Philip W Davies
- Department of Oral Biology, School of Dentistry, St James's University Hospital, University of Leeds, Leeds, UK.
| | - Jennifer Kirkham
- Department of Oral Biology, School of Dentistry, St James's University Hospital, University of Leeds, Leeds, UK
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Aslankoohi N, Mondal D, Rizkalla AS, Mequanint K. Bone Repair and Regenerative Biomaterials: Towards Recapitulating the Microenvironment. Polymers (Basel) 2019; 11:E1437. [PMID: 31480693 PMCID: PMC6780693 DOI: 10.3390/polym11091437] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2019] [Revised: 08/24/2019] [Accepted: 08/25/2019] [Indexed: 02/07/2023] Open
Abstract
Biomaterials and tissue engineering scaffolds play a central role to repair bone defects. Although ceramic derivatives have been historically used to repair bone, hybrid materials have emerged as viable alternatives. The rationale for hybrid bone biomaterials is to recapitulate the native bone composition to which these materials are intended to replace. In addition to the mechanical and dimensional stability, bone repair scaffolds are needed to provide suitable microenvironments for cells. Therefore, scaffolds serve more than a mere structural template suggesting a need for better and interactive biomaterials. In this review article, we aim to provide a summary of the current materials used in bone tissue engineering. Due to the ever-increasing scientific publications on this topic, this review cannot be exhaustive; however, we attempted to provide readers with the latest advance without being redundant. Furthermore, every attempt is made to ensure that seminal works and significant research findings are included, with minimal bias. After a concise review of crystalline calcium phosphates and non-crystalline bioactive glasses, the remaining sections of the manuscript are focused on organic-inorganic hybrid materials.
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Affiliation(s)
- Neda Aslankoohi
- School of Biomedical Engineering, The University of Western Ontario, London, ON N6A 5B9, Canada.
| | - Dibakar Mondal
- Department of Chemical and Biochemical Engineering, The University of Western Ontario, London, ON N6A 5B9, Canada.
| | - Amin S Rizkalla
- School of Biomedical Engineering, The University of Western Ontario, London, ON N6A 5B9, Canada.
- Department of Chemical and Biochemical Engineering, The University of Western Ontario, London, ON N6A 5B9, Canada.
- Schulich School of Medicine and Dentistry, The University of Western Ontario, London, ON N6A 5B9, Canada.
| | - Kibret Mequanint
- School of Biomedical Engineering, The University of Western Ontario, London, ON N6A 5B9, Canada.
- Department of Chemical and Biochemical Engineering, The University of Western Ontario, London, ON N6A 5B9, Canada.
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Chen CL, Tien HW, Chuang CH, Chen YC. A comparison of the bone regeneration and soft-tissue-formation capabilities of various injectable-grafting materials in a rabbit calvarial defect model. J Biomed Mater Res B Appl Biomater 2018; 107:529-544. [PMID: 29722122 DOI: 10.1002/jbm.b.34144] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2018] [Revised: 03/26/2018] [Accepted: 04/09/2018] [Indexed: 11/09/2022]
Abstract
Restoring adequate blood supply is essential to the success of bone repair and augmentation procedures in craniofacial surgery. Nevertheless, the manner by which the incorporation of collagen gels (which can potentially induce angiogenesis), particulated deproteinized bovine bone grafts, or a combination of both can accelerate or delay bone regeneration in a clinical setting remains controversial. The objective of this study was to evaluate radiographically and histologically the capacity and functionality of particulated bone grafts and collagen gels on bone ossification and soft tissue formation in a rabbit calvarial defect. Bilateral calvarial defects in adult white New Zealand rabbits were filled or left either unfilled with bone grafts (DBBM), collagen gels (Gel), or a combination of both (DBBM + Gel). The defects were allowed to heal for 1, 2, and 6 months postoperatively before termination. Healing and regeneration patterns were assessed by 3D µCT and histological methods, and the biomechanical properties of regenerated tissue constructs were investigated and compared with autogenous calvarial bone. Results show that implanted DBBM and DBBM + Gel significantly enhanced immature bone formation compared with the empty and Gel groups; the latter treatment improved soft tissue formation and impeded immature bone formation but yielded no significant effect on mature bone formation. Implantation of DBBM not only effectively reconstructed 188.83 ± 25.25% of the tissue volume of the original defect, but it also regenerated bone tissue with similar tissue composition and biomechanical properties as the original autogenous bone. We also show that implanting different biomaterials can control the composition of soft and hard tissue in reconstructed tissue constructs in calvarial bone defects. © 2018 Wiley Periodicals, Inc. J Biomed Mater Res Part B: Appl Biomater, 2018. © 2018 Wiley Periodicals, Inc. J Biomed Mater Res Part B: Appl Biomater 107B: 529-544, 2019.
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Affiliation(s)
- Chih-Long Chen
- Department of Dentistry, Shin Kong Wu Ho-Su Memorial Hospital, Taipei City, Taiwan
| | - Han-Wen Tien
- Department of Applied Science, National Tsing-Hua University, Hsinchu, Taiwan
| | - Chia-Hui Chuang
- Department of Applied Science, National Tsing-Hua University, Hsinchu, Taiwan
| | - Ying-Chieh Chen
- Department of Materials Science and Engineering, National Tsing-Hua University, Hsinchu, Taiwan
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Bone Healing Evaluation in Critical-Size Defects Treated With Xenogenous Bone Plus Porcine Collagen. IMPLANT DENT 2018; 26:296-302. [PMID: 28288022 DOI: 10.1097/id.0000000000000572] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
PURPOSE This study aimed to evaluate the osteoconductive features of Bio-Oss Collagen in large critical-size defects (8 mm). MATERIALS AND METHODS Thirty-six adult Wistar Albinus male adult rats were carried out a critical-size defect with a trephine bur of 8 mm in the calvaria. Groups were divided depending on the filling biomaterial as follows: group BO: Bio-Oss (n = 18); group BOC: Bio-Oss Collagen (n = 18). After 7, 30, and 60 days, 6 rats of each group were euthanized with anesthetic overdose. Specimens were laboratory processed for histomorphometric analysis. Histomorphometric data were statistically analyzed by analysis of variance and post-Tukey test (P < 0.05). RESULTS Statistical differences were found in new bone formation just in the intragroup comparison among periods after 7 and 60 postoperative days, indicating more new bone formation after 60 days (Tukey test, P = 0.029). CONCLUSION Under the limitation of this research, it could be concluded that Bio-Oss and Bio-Oss Collagen in this experimental model did not show osteoconductive features.
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Jokanović V, Čolović B, Marković D, Petrović M, Soldatović I, Antonijević D, Milosavljević P, Sjerobabin N, Sopta J. Extraordinary biological properties of a new calcium hydroxyapatite/poly(lactide-co-glycolide)-based scaffold confirmed by in vivo investigation. ACTA ACUST UNITED AC 2017; 62:295-306. [PMID: 27285125 DOI: 10.1515/bmt-2015-0164] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2015] [Accepted: 04/27/2016] [Indexed: 11/15/2022]
Abstract
This study examined the potential of a new porous calcium hydroxyapatite scaffold covered with poly (lactide-co-glycolide) (PLGA) as a bone substitute, identifying its advantages over Geistlich Bio-Oss®, considered the gold standard, in in vivo biofunctionality investigations. Structural and morphological properties of the new scaffold were analyzed by scanning electron and atomic force microscopy. The biofunctionality assays were performed on New Zealand white rabbits using new scaffold for filling full-thickness defects of critical size. The evaluated parameters were: the presence of macrophages, giant cells, monoocytes, plasma cells, granulocytes, neoangiogenesis, fibroplasia, and the percentage of mineralization. Parallel biofunctionality assays were performed using Geistlich Bio-Oss®. The appearance of bone defects 12 weeks after the new scaffold implantation showed the presence of a small number of typical immune response cells. Furthermore, significantly reduced number of capillary buds, low intensity of fibroplasia and high degree of mineralization in a lamellar pattern indicated that the inflammation process has been almost completely overcome and that the new bone formed was in the final phase of remodeling. All biofunctionality assays proved the new scaffold's suitability as a bone substitute for applications in maxillofacial surgery. It showed numerous biological advantages over Geistlich Bio-Oss® which was reflected mainly as a lower number of giant cells surrounding implanted material and higher degree of mineralization in new formed bone.
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Smith MM, Duncan WJ, Coates DE. Attributes of Bio-Oss ® and Moa-Bone ® graft materials in a pilot study using the sheep maxillary sinus model. J Periodontal Res 2017; 53:80-90. [PMID: 28868669 DOI: 10.1111/jre.12490] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/02/2017] [Indexed: 01/17/2023]
Abstract
BACKGROUND AND OBJECTIVE The aim of this pilot study was to characterize surface morphology and to evaluate resorption and osseous healing of two deproteinated bovine bone graft materials after sinus grafting in a large animal model. MATERIAL AND METHODS Surfaces of a novel particulate bovine bone graft, Moa-Bone® were compared with Bio-Oss® using scanning electron microscopy. Six sheep then had maxillary sinus grafting bilaterally, covered with BioGide® . Grafted maxillae were harvested after 4, 6 and 12 weeks. Healing was described for half of each site using resin-embedded ground sections. For the other half, paraffin-embedded sections were examined using tartrate resistant acid phosphatase staining for osteoclast activity, runt-related transcription factor2 immunohistochemistry for pre-osteoblasts and osteoblasts and proliferating cell nuclear antigen for proliferative cells. RESULTS Moa-Bone® had a smoother, more porous fibrous structure with minimal globular particles compared with Bio-Oss® . After 4 weeks, woven bone formed on both grafts and the Moa-Bone® particles also showed signs of resorption. After 12 weeks, Moa-Bone® continued to be resorbed, however Bio-Oss® did not; both grafts were surrounded by maturing lamellar bone. Moa-Bone® was associated with earlier evidence of runt-related transcription factor 2-positive cells. Moa-Bone® but not Bio-Oss® was associated with strong tartrate resistant acid phosphatase-positive osteoclasts on the graft surface within resorption lacunae at both 4 and 6 weeks post-grafting. CONCLUSION Both materials supported osseous healing and maturation without inflammation. Moa-Bone® showed marked osteoclast activity after 4 and 6 weeks and demonstrated positive attributes for grafting, if complete remodeling of the graft within the site is desired. Further optimization of Moa-Bone® for maxillofacial applications is warranted.
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Affiliation(s)
- M M Smith
- Sir John Walsh Research Institute, Faculty of Dentistry, University of Otago, Dunedin, New Zealand
| | - W J Duncan
- Sir John Walsh Research Institute, Faculty of Dentistry, University of Otago, Dunedin, New Zealand
| | - D E Coates
- Sir John Walsh Research Institute, Faculty of Dentistry, University of Otago, Dunedin, New Zealand
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Wu CC, Huang YK, Chang WJ, Wu YC, Wang CC, Yang KC. Limitation of the antibiotic-eluting bone graft substitute: An example of gentamycin-impregnated calcium sulfate. J Biomed Mater Res B Appl Biomater 2016; 106:80-87. [PMID: 27860210 DOI: 10.1002/jbm.b.33815] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2016] [Revised: 10/04/2016] [Accepted: 11/04/2016] [Indexed: 11/07/2022]
Abstract
Patients with inadequate volume of alveolar processes or bone defects commonly require graft substitutes in oral, maxillofacial or orthopedic surgery. Ridge augmentation and reconstruction of facial bony defects with bone graft materials achieve better outcomes in functional and aesthetic rehabilitation. The injectable calcium sulfate filler is used widely in intra-operative applications. Calcium sulfate bone filler has been shown to upregulate bone formation-related mRNA genes in vitro and improve osseointegration in vivo. In addition, the bone graft substitute can be used as a drug delivery system for antibiotics to treat or prevent infections based on the clinical experiences. However, the influences of antibiotics addition on the calcium sulfate are not fully understood. In this study, calcium sulfate impregnated with gentamycin in different weight ratios was characterized. The results showed that gentamycin prolonged the hydration process and extended initial/final setting times of calcium sulfate. The addition of gentamycin slowed the conversion from calcium sulfate hemihydrate to dihydrate and changed the crystalline phase and microstructure. Higher amounts of gentamycin added resulted in faster degradation and lower mechanical strength of calcium sulfate. This study reveals that the extended setting time, decreased compressive strength, and the accelerated degradation of the gentamycin-impregnated calcium sulfate bone graft substitutes should be considered during intra-operative applications. © 2016 Wiley Periodicals, Inc. J Biomed Mater Res Part B: Appl Biomater, 106B: 80-87, 2018.
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Affiliation(s)
- Chang-Chin Wu
- Department of Orthopedics, National Taiwan University Hospital, College of Medicine, National Taiwan University, Taipei, 10002, Taiwan
- Department of Biomedical Engineering, Yuanpei University of Medical Technology, Hsinchu, 30015, Taiwan
- Department of Orthopedics, En Chu Kong Hospital, New Taipei City, 23702, Taiwan
| | - Yang-Kai Huang
- Department of Dentistry, Taipei Medical University Hospital, Taipei, 11031, Taiwan
- School of Dentistry, College of Oral Medicine, Taipei Medical University, Taipei, 11031, Taiwan
| | - Wei-Jen Chang
- School of Dentistry, College of Oral Medicine, Taipei Medical University, Taipei, 11031, Taiwan
| | - Yun-Ching Wu
- School of Dental Technology, College of Oral Medicine, Taipei Medical University, Taipei, 11031, Taiwan
| | - Chen-Chie Wang
- Department of Orthopedic Surgery, Taipei Tzu Chi Hospital, The Buddhist Tzu Chi Medical Foundation, New Taipei City, 23142, Taiwan
- Department of Orthopedics, School of Medicine, Tzu Chi University, Hualien, 97004, Taiwan
| | - Kai-Chiang Yang
- School of Dentistry, College of Oral Medicine, Taipei Medical University, Taipei, 11031, Taiwan
- School of Dental Technology, College of Oral Medicine, Taipei Medical University, Taipei, 11031, Taiwan
- Department of Orthopedic Surgery, Taipei Tzu Chi Hospital, The Buddhist Tzu Chi Medical Foundation, New Taipei City, 23142, Taiwan
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Takauti CAY, Futema F, Brito Junior RBD, Abrahão AC, Costa C, Queiroz CS. Assessment of bone healing in rabbit calvaria grafted with three different biomaterials. Braz Dent J 2016; 25:379-84. [PMID: 25517771 DOI: 10.1590/0103-6440201302383] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2013] [Accepted: 07/28/2014] [Indexed: 11/21/2022] Open
Abstract
This study evaluated the bone regeneration process in rabbit calvaria induced by three types of biomaterials: two xenogenous, consisting of deproteinized bovine bone, while the other was alloplastic, based on biphasic calcium phosphate. Five New Zealand white rabbits weighing between 2,900 and 3,500 g were submitted to four standard 8 mm-diameter perforations at the parietal bone. Three perforations were filled with three grafts and biomaterials, two of them received bovine Bio-Oss® and Endobon® Xenograft Granules, and the other consisted of fully alloplastic Straumann® Bone Ceramic. The fourth remaining cavity was used as control with coagulum. After eight weeks, the animals were sacrificed, and the samples were prepared for morphometric and qualitative analysis. The cavities filled with alloplastic biomaterials showed higher percentages of newly formed bone (p<0.05), while the cavities with xenogenous biomaterials showed higher amount of residual graft (p<0.05). Although the results showed greater bone formation with Straumann® Bone Ceramic, further studies are required to prove which is the more effective biomaterial for bone induction process.
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Affiliation(s)
| | - Fabio Futema
- Department of Veterinary Medicine, Paulista University, UNIP, São Paulo, SP, Brazil
| | | | - Aline Corrêa Abrahão
- Department of Dentistry, Federal University of Rio de Janeiro, UFRJ, Rio de Janeiro, RJ, Brazil
| | - Claudio Costa
- Department of Stomatology, School of Dentistry, University of São Paulo, USP, São Paulo, SP, Brazil
| | - Celso Silva Queiroz
- Department of Dentistry, Veiga de Almeida University, Rio de Janeiro, RJ, Brazil
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Calciolari E, Mardas N, Dereka X, Kostomitsopoulos N, Petrie A, Donos N. The effect of experimental osteoporosis on bone regeneration: Part 1, histology findings. Clin Oral Implants Res 2016; 28:e101-e110. [PMID: 27502355 DOI: 10.1111/clr.12936] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/06/2016] [Indexed: 01/21/2023]
Abstract
OBJECTIVES To histologically define the healing events occurring in calvarial critical size defects (CSDs) following treatment with a collagen barrier for guided bone regeneration (GBR) and a particulate graft in healthy and osteoporotic conditions. MATERIAL AND METHODS Thirty-six 10-month-old, female, Wistar rats were used in this study. Half of them were ovariectomized (OVX) and fed with a low-calcium diet to induce an osteoporotic-like status. In each animal of both groups, two 5-mm CSDs were created, one in the centre of each parietal bone, and they were treated with a deproteinized bovine bone mineral (DBBM) particulate graft and a bi-layer collagen membrane. Six OVX and six healthy control rats were randomly euthanized at 7, 14 and 30 days. One defect per animal was randomly processed for decalcified histology. Three central sections were used for qualitative histology and histomorphometric analysis. RESULTS No significant difference in terms of percentage of newly formed bone was detected between the two groups at the different healing periods. However, a trend towards less bone formation and of poorer quality, expressed as reduced bone maturation, was detected in the OVX animals at 30 days. DISCUSSION According to this study, GBR with a collagen barrier and a DBBM graft can be successfully obtained also in osteoporotic-like conditions. Future studies considering longer healing periods and controlling for the confounding factors arising from the use of a particulate graft are needed to confirm these data.
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Affiliation(s)
- Elena Calciolari
- Centre for Oral Clinical Research, Institute of Dentistry, Queen Mary University of London (QMUL), Barts and The London School of Medicine and Dentistry, London, UK.,Periodontology Department, Eastman Dental Institute, University College London (UCL), London, UK
| | - Nikos Mardas
- Centre for Adult Oral Health, Bart's & The London School of Dentistry and Medicine, Queen Mary University of London (QMUL), London, UK
| | - Xanthippi Dereka
- Department of Periodontology, National and Kapodistrian University of Athens, Athens, Greece
| | - Nikolaos Kostomitsopoulos
- Laboratory Animal Facilities, Biomedical Research Foundation of the Academy of Athens, Athens, Greece
| | - Aviva Petrie
- Biostatistics Unit, Eastman Dental Institute, University College London (UCL), London, UK
| | - Nikolaos Donos
- Centre for Oral Clinical Research, Institute of Dentistry, Queen Mary University of London (QMUL), Barts and The London School of Medicine and Dentistry, London, UK
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Saha S, Yoshikai T, Liu CY, Matsusaki M, Yang XB, Akashi M. Fabrication of Cell–Hydroxyapatite Nanocrystal Composites Assisted with Layer-by-layer Nanometer-sized Extracellular Matrix Films on Individual Stem Cells. CHEM LETT 2015. [DOI: 10.1246/cl.150854] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Sushmita Saha
- Biomaterials and Tissue Engineering Group, Department of Oral Biology, School of Dentistry, University of Leeds
| | - Takashi Yoshikai
- Department of Applied Chemistry, Graduate School of Engineering, Osaka University
| | - Chun-Yen Liu
- Department of Applied Chemistry, Graduate School of Engineering, Osaka University
| | - Michiya Matsusaki
- Department of Applied Chemistry, Graduate School of Engineering, Osaka University
| | - Xuebin B. Yang
- Biomaterials and Tissue Engineering Group, Department of Oral Biology, School of Dentistry, University of Leeds
| | - Mitsuru Akashi
- Department of Applied Chemistry, Graduate School of Engineering, Osaka University
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Dutta SR, Passi D, Singh P, Bhuibhar A. Ceramic and non-ceramic hydroxyapatite as a bone graft material: a brief review. Ir J Med Sci 2014; 184:101-6. [PMID: 25428698 DOI: 10.1007/s11845-014-1199-8] [Citation(s) in RCA: 75] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2014] [Accepted: 09/02/2014] [Indexed: 11/25/2022]
Abstract
Treatment of dental, craniofacial and orthopedic defects with bone graft substitutes has shown promising result achieving almost complete bone regeneration depending on product resorption similar to human bone's physicochemical and crystallographic characteristics. Among these, non-ceramic and ceramic hydroxyapatite being the main inorganic salt of bone is the most studied calcium phosphate material in clinical practices ever since 1970s and non-ceramic since 1985. Its "chemical similarity" with the mineralized phase of biologic bone makes it unique. Hydroxyapatite as an excellent carrier of osteoinductive growth factors and osteogenic cell populations is also useful as drug delivery vehicle regardless of its density. Porous ceramic and non-ceramic hydroxyapatite is osteoconductive, biocompatible and very inert. The need for bone graft material keeps on increasing with increased age of the population and the increased conditions of trauma. Recent advances in genetic engineering and doping techniques have made it possible to use non-ceramic hydroxyapatite in larger non-ceramic crystals and cluster forms as a successful bone graft substitute to treat various types of bone defects. In this paper we have mentioned some recently studied properties of hydroxyapatite and its various uses through a brief review of the literatures available to date.
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Affiliation(s)
- S R Dutta
- Department of Oral and Maxillofacial Surgery, M. B. Kedia Dental College, Tribhuvan University, Chhapkaiya, Birgunj, Nepal,
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Beutel BG, Danna NR, Gangolli R, Granato R, Manne L, Tovar N, Coelho PG. Evaluation of bone response to synthetic bone grafting material treated with argon-based atmospheric pressure plasma. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2014; 45:484-90. [PMID: 25491854 DOI: 10.1016/j.msec.2014.09.039] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/28/2014] [Revised: 09/11/2014] [Accepted: 09/30/2014] [Indexed: 11/25/2022]
Abstract
Bone graft materials are utilized to stimulate healing of bone defects or enhance osseointegration of implants. In order to augment these capabilities, various surface modification techniques, including atmospheric pressure plasma (APP) surface treatment, have been developed. This in vivo study sought to assess the effect of APP surface treatment on degradation and osseointegration of Synthograft™, a beta-tricalcium phosphate (β-TCP) synthetic bone graft. The experimental (APP-treated) grafts were subjected to APP treatment with argon for a period of 60s. Physicochemical characterization was performed by environmental scanning electron microscopy, surface energy (SE), and x-ray photoelectron spectroscopy analyses both before and after APP treatment. Two APP-treated and two untreated grafts were surgically implanted into four critical-size calvarial defects in each of ten New Zealand white rabbits. The defect samples were explanted after four weeks, underwent histological analysis, and the percentages of bone, soft tissue, and remaining graft material were quantified by image thresholding. Material characterization showed no differences in particle surface morphology and that the APP-treated group presented significantly higher SE along with higher amounts of the base material chemical elements on it surface. Review of defect composition showed that APP treatment did not increase bone formation or reduce the amount of soft tissue filling the defect when compared to untreated material. Histologic cross-sections demonstrated osteoblastic cell lines, osteoid deposition, and neovascularization in both groups. Ultimately, argon-based APP treatment did not enhance the osseointegration or degradation of the β-TCP graft. Future investigations should evaluate the utility of gases other than argon to enhance osseointegration through APP treatment.
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Affiliation(s)
- Bryan G Beutel
- New York University, Department of Biomaterials and Biomimetics, 345 East 24th Street, Room 804 S, New York, NY 10010, USA.
| | - Natalie R Danna
- New York University, Department of Biomaterials and Biomimetics, 345 East 24th Street, Room 804 S, New York, NY 10010, USA
| | - Riddhi Gangolli
- New York University, Department of Biomaterials and Biomimetics, 345 East 24th Street, Room 804 S, New York, NY 10010, USA
| | - Rodrigo Granato
- New York University, Department of Biomaterials and Biomimetics, 345 East 24th Street, Room 804 S, New York, NY 10010, USA
| | - Lakshmiprada Manne
- New York University, Department of Biomaterials and Biomimetics, 345 East 24th Street, Room 804 S, New York, NY 10010, USA
| | - Nick Tovar
- New York University, Department of Biomaterials and Biomimetics, 345 East 24th Street, Room 804 S, New York, NY 10010, USA
| | - Paulo G Coelho
- New York University, Department of Biomaterials and Biomimetics, 345 East 24th Street, Room 804 S, New York, NY 10010, USA
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Tovar N, Jimbo R, Witek L, Anchieta R, Yoo D, Manne L, Machado L, Gangolli R, Coelho PG. The physicochemical characterization and in vivo response of micro/nanoporous bioactive ceramic particulate bone graft materials. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2014; 43:472-80. [PMID: 25175238 DOI: 10.1016/j.msec.2014.07.048] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/19/2014] [Revised: 06/21/2014] [Accepted: 07/13/2014] [Indexed: 11/25/2022]
Abstract
In this study, the physicochemical characteristics of calcium phosphate based bioactive ceramics of different compositions and blends presenting similar micro/nanoporosity and micrometer scale surface texture were characterized and evaluated in an in vivo model. Prior to the animal experiment, the porosity, surface area, particle size distribution, phase quantification, and dissolution of the materials tested were evaluated. The bone regenerative properties of the materials were evaluated using a rabbit calvaria model. After 2, 4, and 8 weeks, the animals were sacrificed and all samples were subjected to histologic observation and histomorphometric analysis. The material characterization showed that all materials tested presented variation in particle size, porosity and composition with different degrees of HA/TCP/lower stoichiometry phase ratios. Histologically, the calvarial defects presented temporal bone filling suggesting that all material groups were biocompatible and osteoconductive. Among the different materials tested, there were significant differences found in the amount of bone formation as a function of time. At 8 weeks, the micro/nanoporous material presenting ~55%TCP:45%HA composition ratio presented higher amounts of new bone regeneration relative to other blends and a decrease in the amount of soft tissue infiltration.
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Affiliation(s)
- Nick Tovar
- Department of Biomaterials and Biomimetics, New York University College of Dentistry, NY, USA
| | - Ryo Jimbo
- Department of Prosthodontics, Faculty of Odontology, Malmo University, Sweden; Department of Applied Prosthodontics, Graduate School of Biomedical Sciences, Nagasaki University, Nagasaki, Japan.
| | - Lukasz Witek
- Department of Chemical Engineering, OK State University, Stillwater, USA
| | - Rodolfo Anchieta
- Department of Dental Materials and Prosthodontics, Sao Paulo State University-UNESP, Sao Paulo, Brazil
| | - Daniel Yoo
- Department of Biomaterials and Biomimetics, New York University College of Dentistry, NY, USA
| | - Lakshmipradha Manne
- Department of Biomaterials and Biomimetics, New York University College of Dentistry, NY, USA
| | - Lucas Machado
- Department of Dental Materials and Prosthodontics, Sao Paulo State University-UNESP, Sao Paulo, Brazil
| | - Riddhi Gangolli
- Department of Biomaterials and Biomimetics, New York University College of Dentistry, NY, USA
| | - Paulo G Coelho
- Department of Biomaterials and Biomimetics, New York University College of Dentistry, NY, USA
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Naito Y, Terukina T, Galli S, Kozai Y, Vandeweghe S, Tagami T, Ozeki T, Ichikawa T, Coelho PG, Jimbo R. The effect of simvastatin-loaded polymeric microspheres in a critical size bone defect in the rabbit calvaria. Int J Pharm 2014; 461:157-62. [DOI: 10.1016/j.ijpharm.2013.11.046] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2013] [Revised: 11/19/2013] [Accepted: 11/23/2013] [Indexed: 11/30/2022]
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