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Zhang Y, Wu J, Yang Q, Zhou Y, Wang M, Zhang Z, Zou D. Bone formation in large/moderate gap after immediate implantation in response to different treatments: a pre-clinical study in the canine posterior mandible. Clin Oral Investig 2024; 28:181. [PMID: 38424389 DOI: 10.1007/s00784-024-05559-9] [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: 09/07/2023] [Accepted: 02/13/2024] [Indexed: 03/02/2024]
Abstract
OBJECTIVES This study aims to investigate different treatments on new bone formation around immediate implants in the canine posterior mandible with varying sized mesial-distal gap. MATERIALS AND METHODS The 4th premolar and the 1st molar of six Labrador dogs were extracted from the mandible, and 4 dental implants were placed 1 mm below the level of the buccal bone crest. Moderate/large mesial-distal gaps between the implants and the sockets were treated with one of four methods and divided into the following groups: (1) the blank group, (2) the collagen membrane (CM) group, (3) the deproteinized bovine bone mineral (DBBM) group, and (4) the DBBM + CM group. Sequential fluorescent labeling was performed at 4, 8, and 10 weeks after the operation. After 12 weeks, the dogs were euthanized, and specimens were collected for micro-CT scanning and histological analysis. RESULTS The survival rate of immediate implant was 100%. Micro-CT showed significant differences in bone mineral density (BMD) and bone volume fraction (BVF) among groups (P = 0.040, P = 0.009); other indicators were not significantly different among groups. Histological analysis showed the proportion of new bone formation and bone-to-implant contact were not significantly different among groups. No significant difference in bone reduction height around dental implant among four groups and varied mesial-distal gap size. CONCLUSION Owing to the restricted sample size, this pilot study lacks conclusive findings. Within the limitation, this study demonstrated that although DBBM significantly increase BMD and BVF, the use of DBBM/CM didn't significantly improve bone formation and healing in extraction sockets around the implants in both moderate and large mesial-distal gap. CLINICAL RELEVANCE The use of deproteinized bovine bone in conjunction with collagen is a common practice in immediate implantation procedures in the posterior mandible. However, there is a lack of conclusive evidence regarding the timing and circumstances under which they should be employed.
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Affiliation(s)
- Yiwen Zhang
- Department of Oral Surgery, Shanghai Ninth People's Hospital, College of Stomatology, Shanghai Jiao Tong University School of Medicine, Shanghai, 200001, China
- National Center for Stomatology, Shanghai Key Laboratory of Stomatology, Research Unit of Oral and Maxillofacial Regenerative Medicine, National Clinical Research Center for Oral Diseases, Chinese Academy of Medical Sciences, Shanghai, 200001, China
| | - Jing Wu
- Department of Oral Surgery, Shanghai Ninth People's Hospital, College of Stomatology, Shanghai Jiao Tong University School of Medicine, Shanghai, 200001, China
- National Center for Stomatology, Shanghai Key Laboratory of Stomatology, Research Unit of Oral and Maxillofacial Regenerative Medicine, National Clinical Research Center for Oral Diseases, Chinese Academy of Medical Sciences, Shanghai, 200001, China
| | - Qiutong Yang
- Department of Oral Surgery, Shanghai Ninth People's Hospital, College of Stomatology, Shanghai Jiao Tong University School of Medicine, Shanghai, 200001, China
- National Center for Stomatology, Shanghai Key Laboratory of Stomatology, Research Unit of Oral and Maxillofacial Regenerative Medicine, National Clinical Research Center for Oral Diseases, Chinese Academy of Medical Sciences, Shanghai, 200001, China
| | - Yong Zhou
- Department of Oral Implant, Key Lab. of Oral Diseases Research of Anhui Province, Stomatologic Hospital & College, Anhui Medical University, Hefei, 230032, China
| | - Mohan Wang
- Department of Oral Implant, Key Lab. of Oral Diseases Research of Anhui Province, Stomatologic Hospital & College, Anhui Medical University, Hefei, 230032, China
| | - Zhiyuan Zhang
- Department of Oral Surgery, Shanghai Ninth People's Hospital, College of Stomatology, Shanghai Jiao Tong University School of Medicine, Shanghai, 200001, China
- National Center for Stomatology, Shanghai Key Laboratory of Stomatology, Research Unit of Oral and Maxillofacial Regenerative Medicine, National Clinical Research Center for Oral Diseases, Chinese Academy of Medical Sciences, Shanghai, 200001, China
| | - Duohong Zou
- Department of Oral Surgery, Shanghai Ninth People's Hospital, College of Stomatology, Shanghai Jiao Tong University School of Medicine, Shanghai, 200001, China.
- National Center for Stomatology, Shanghai Key Laboratory of Stomatology, Research Unit of Oral and Maxillofacial Regenerative Medicine, National Clinical Research Center for Oral Diseases, Chinese Academy of Medical Sciences, Shanghai, 200001, China.
- Department of Oral and Maxillofacial Surgery, Collage of Stomatology, Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200011, China.
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Wen C, Zhang Q. Pilot study of fractal dimension analysis of osteogenesis for bone substitute materials of Bio-Oss in lateral sinus augmentation. PLoS One 2023; 18:e0296248. [PMID: 38157335 PMCID: PMC10756558 DOI: 10.1371/journal.pone.0296248] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2023] [Accepted: 12/09/2023] [Indexed: 01/03/2024] Open
Abstract
BACKGROUND Fractal dimension (FD) analysis has been proposed and validated in osseointegration-related research. The aim of this study was to evaluate the feasibility of FD analysis in the osteogenesis detection of bone substitute materials (BSMs) of Bio-Oss in maxillary lateral sinus augmentation. METHODS Patients who received lateral maxillary sinus augmentation and underwent grafting with BSMs (Bio-Oss) were included in the study. The cross sections of the BSMs under cone-beam computed tomography (CBCT) at mesial, distal, and sagittal directions were obtained immediately after the graft (T0) and 6 months later (T1), and the obtained images were cropped to include only the BSMs. The FD analysis was performed, and the FD value was obtained by the method of box-counting. Paired t-tests and analysis of variance (ANOVA) were used, and p-values <0.05 was considered statistically significant. RESULTS Twelve participants with 22 implants, which were inserted simultaneously after sinus augmentation, were included in this study. A total of 22 mesial, 22 distal, and 14 sagittal images were obtained after FD analysis. The mean FD value and standard deviation at T0 was 1.2860 ± 0.0896, while at T1, it was 1.2508±0.1023; thus, significant differences were detected (p = 0.022). However, the increasing or decreasing trend of FD value was not stable, and no significant difference was detected for FD values of mesial, distal, and sagittal images between T0 and T1. ANOVA indicated that no significant difference was detected among the FD values of mesial, distal, and sagittal images at any timepoint. Differences in FD values between the sexes were not significant either. CONCLUSIONS Since the FD analysis for the osteogenesis detection of BSMs in maxillary sinus augmentation indicated unstable trends of change, its feasibility is not reliable. The initially rough surface, self-degradation, and volume change of the BSMs during osteogenesis may be the reason for the variation in FD values.
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Affiliation(s)
- Cai Wen
- Department of Oral Implantology, The Affiliated Stomatology Hospital, Southwest Medical University, Luzhou, Sichuan, China
- Department of VIP Dental Service, The Affiliated Stomatology Hospital, Southwest Medical University, Luzhou, Sichuan, China
- Luzhou Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, The Affiliated Stomatology Hospital, Southwest Medical University, Luzhou, Sichuan, China
- Institute of Stomatology, Southwest Medical University, Luzhou, Sichuan, China
| | - Qing Zhang
- Department of Nosocomial Infection Control, The Affiliated Hospital, Southwest Medical University, Luzhou, Sichuan, China
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Quiroz VF, Lima JR, Pinotti FE, Marcantonio RA, Marcantonio E, Oliveira GJ. Comparison of osseointegration in areas grafted with deproteinized bovine bone and native bone. A preclinical study. ACTA ODONTOLOGICA LATINOAMERICANA : AOL 2022; 35:3-9. [PMID: 35700535 DOI: 10.54589/aol.35/1/3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/01/2021] [Accepted: 02/01/2022] [Indexed: 06/15/2023]
Abstract
The aim of this study was to evaluate the osseointegration of implants placed in rat tibia sites grafted with Deproteinized Bovine Bone (DBB) and Native Bone (NB). Twenty-eight rats were divided into two groups according to the type of substrate in which the implants were to be placed: NB - implants placed in native bone; DBB - implants placed in areas grafted with DBB. In the DBB group, the bone defect was made and filled with the bone substitute 60 days before placing the implant. The animals were euthanized 15 or 45 days after implant placement. Osseointegration was assessed by the removal torque, volume of mineralized tissues around the implants (BV/TV), bone-implant contact (%BIC), and bone between threads (%BBT). The implants placed in NB presented higher removal torque (8.00 ± 1.26 Ncm vs. 2.33 ± 0.41 Ncm at 15 days and 22.00 ± 2.44 Ncm vs. 4.00 ± 1.41 Ncm at 45 days), higher %BV/TV (47.92 ± 1.54% vs. 33.33 ± 4.77% at 15 days and 70.06 ± 0.91% vs. 39.89±5.90%at 45 days), higher %BIC (39.68 ± 5.02% vs. 9.12 ± 5.56% at 15 days and 83.23 ± 4.42% vs. 18.81 ± 7.21% at 45 days), and higher %BBT (34.33 ± 5.42% vs. 13.24 ± 8.72% at 15 days and 82.33 ± 3.13% vs. 22.26 ± 8.27% at 45 days) than the implants placed in DBB grafted areas. The degree of osseointegration was lower in implants placed in the area grafted with DBB than in NB in rat tibias.
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Affiliation(s)
- Victor F Quiroz
- Universidade Federal de Uberlândia, Faculdade de Odontologia, Departamento de Periodontía e Implantodontia, Uberlândia, Brasil
| | - Júlia R Lima
- Universidade Federal de Uberlândia, Faculdade de Odontologia, Departamento de Periodontía e Implantodontia, Uberlândia, Brasil
| | - Felipe E Pinotti
- Universidade de Araraquara, Faculdade de Odontologia, Departamento de Diagnostico e Cirurgía, Araraquara, Brasil
| | - Rosemary Ac Marcantonio
- Universidade de Araraquara, Faculdade de Odontologia, Departamento de Diagnostico e Cirurgía, Araraquara, Brasil
| | - Elcio Marcantonio
- Universidade de Araraquara, Faculdade de Odontologia, Departamento de Diagnostico e Cirurgía, Araraquara, Brasil
| | - Guilherme Jpl Oliveira
- Universidade Federal de Uberlândia, Faculdade de Odontologia, Departamento de Periodontía e Implantodontia, Uberlândia, Brasil.
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Tu C, Bajwa A, Shi A, Wu G, Wang J. Effect of fibrin glue on the healing efficacy of deproteinized bovine bone and autologous bone in critical-sized calvarial defects in rats. Clin Oral Investig 2022; 26:2491-2502. [DOI: 10.1007/s00784-021-04217-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2021] [Accepted: 09/30/2021] [Indexed: 11/24/2022]
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Sato R, Matsuura T, Akizuki T, Fukuba S, Okada M, Nohara K, Takeuchi S, Hoshi S, Ono W, Maruyama K, Izumi Y, Iwata T. Influence of the bone graft materials used for guided bone regeneration on subsequent peri-implant inflammation: an experimental ligature-induced peri-implantitis model in Beagle dogs. Int J Implant Dent 2022; 8:3. [PMID: 35064395 PMCID: PMC8782989 DOI: 10.1186/s40729-022-00403-9] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2021] [Accepted: 01/13/2022] [Indexed: 11/10/2022] Open
Abstract
Purpose We aimed to histologically evaluate the influence of bone materials used during guided bone regeneration (GBR) on subsequent peri-implantitis in an experimental ligature-induced peri-implantitis model in beagle dogs. Methods Bilateral mandibular premolars (PM2-4) were extracted from six beagle dogs. After 3 months, standardized bone defects (3 mm [mesio-distal width] × 2 mm [bucco-lingual width] × 3 mm [depth]) were created in the experimental group, with simultaneous dental implant placement at the center of the defects. The defects were randomly filled with either autograft (AG) or deproteinized bovine bone mineral (DBBM) and covered with a collagen membrane. In the control group, implant fixtures were placed without creating an intrabony defect. After 3 months, a healing abutment was placed. Four weeks later, a 3–0 silk thread was ligated around the implants to induce peri-implantitis. After 4 weeks, the specimens were dissected and histologically examined. Results There were no clinical findings of inflammation until silk thread ligation. Four weeks after the onset of peri-implantitis, gingival redness and swelling were seen with mild resorption of the peri-implant bone on dental radiographs. There were no significant differences between the AG, DBBM, and control groups for the following parameters: bone-to-implant contact, distance from the implant shoulder to the base of the bone defect, area of bone defect, and area of new bone. Conclusions Within the limitations of this study, it can be concluded that peri-implant tissues after GBR using AG and DBBM underwent the same degree of bone resorption by peri-implantitis as the no defect group.
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Choi WH, Kim YD, Song JM, Shin SH. Comparative study of bone regeneration using fibrin sealant with xenograft in rabbit sinus: pilot study. Maxillofac Plast Reconstr Surg 2021; 43:5. [PMID: 33566201 PMCID: PMC7876188 DOI: 10.1186/s40902-021-00290-x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2020] [Accepted: 01/03/2021] [Indexed: 11/30/2022] Open
Abstract
Background Stability of the grafted bone volume is one of the important factors to the success of alveolar bone grafts. For this, platelet-rich plasma (PRP) or fibrin sealant is mixed with the bone graft material. Bio-Oss® is a protein-free bovine mineral commonly used in bone graft procedures. The grafting particles are commonly combined with a standard fibrin sealant (Tisseel®) to fabricate a plastic implantable product. The purpose of this experiment was to evaluate the efficacy of fibrin sealant (Tisseel®) in bone regeneration performance in a rabbit maxillary sinus model. Methods A total of five 3.5 kg weight New Zealand white rabbits were used for the study. After elevating the sinus membrane in both maxillary sinus cavities, Bio-Oss® mixed with normal saline (group 1) was filled into the right side, and Tisseel® mixed Bio-Oss® (group 2) was inserted into the other side. The bone mineral density and bone volume were analyzed with microscopic computed tomography (micro-CT) and histomorphometric 12 weeks after application. Results Histologically, new bone formation rate was 14.8%, and grafted bone rate was 70.5% in group 1. In group 2, they were 18.5% and 60.4%, respectively. According to micro-CT analysis, bone mineral density (mg/cm3, BMD) was 2.5% larger in group 1. Conclusions The findings from this study suggest that, although the difference in the bone formation between group 1 and group 2 appears to be insignificant, group 2 had an advantage in using smaller amount of bone substances to achieve the reliable bone formation.
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Affiliation(s)
- Won-Hyuk Choi
- Department of Oral and maxillofacial surgery, School of dentistry, Pusan National University, Yangsan, 50612, Republic of Korea.,Department of Oral and maxillofacial surgery, Pusan National University Hospital, Pusan, 49241, Republic of Korea
| | - Yong-Deok Kim
- Department of Oral and maxillofacial surgery, School of dentistry, Pusan National University, Yangsan, 50612, Republic of Korea.,Dental and Life Science Institute & Dental Research Institute, Pusan National University Dental Hospital, Yangsan, 50612, Republic of Korea
| | - Jae-Min Song
- Department of Oral and maxillofacial surgery, School of dentistry, Pusan National University, Yangsan, 50612, Republic of Korea. .,Department of Oral and maxillofacial surgery, Pusan National University Hospital, Pusan, 49241, Republic of Korea. .,Biomedical Research Institute, Pusan National University Hospital, Pusan, 49241, Republic of Korea.
| | - Sang-Hun Shin
- Department of Oral and maxillofacial surgery, School of dentistry, Pusan National University, Yangsan, 50612, Republic of Korea. .,Dental and Life Science Institute & Dental Research Institute, Pusan National University Dental Hospital, Yangsan, 50612, Republic of Korea.
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Amid R, Kheiri A, Kheiri L, Kadkhodazadeh M, Ekhlasmandkermani M. Structural and chemical features of xenograft bone substitutes: A systematic review of in vitro studies. Biotechnol Appl Biochem 2020; 68:1432-1452. [PMID: 33135215 DOI: 10.1002/bab.2065] [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: 02/14/2020] [Accepted: 10/24/2020] [Indexed: 11/10/2022]
Abstract
Xenograft bone substitutes are obtained from different species and prepared by various procedures including heat treatment, hydrazine, and chemical and hydrothermal methods. These grafts are utilized widely because of similar structure and properties to human bone, proper bone formation, and biocompatibility. The aim of this systematic review was to evaluate different xenografts from structural and chemical aspects. In vitro studies published in English language, which assessed xenografts' features, met the inclusion criteria. Electronic search of four databases including PubMed, Google Scholar, Scopus, and Web of Science and a hand search until September 2020 were performed. The irrelevant studies were the ones which focused on cell adhesion and effect of growth factors. Finally, 25 studies were included in the review. Nineteen studies used bovine xenografts, and 12 studies applied heat treatment as their preparation method. Particles showed various morphologies, and their largest size was observed at 5 mm. From 18 studies, it is found that the smallest pore size was 1.3 µm and the highest pore size was 1000 µm. There is large heterogeneity of porosity, crystallinity, Ca/P ratio, and osteogenesis based on the preparation method. Proper porosity and the connection between pores affect bone regeneration. Therefore, biomaterial selection and outcomes evaluation should be interpreted separately.
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Affiliation(s)
- Reza Amid
- Dental Research Center, School of Dentistry, Research Institute of Dental Sciences, Shahid Beheshti University of Medical Sciences, Tehran, Iran.,Department of Periodontics, School of Dentistry, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Aida Kheiri
- Student Research Committee, Gifted and Talented Dental Students Division, School of Dentistry, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Lida Kheiri
- Department of Oral and Maxillofacial Surgery, School of Dentistry, Isfahan (Khorasgan) Branch, Islamic Azad University, Isfahan, Iran
| | - Mahdi Kadkhodazadeh
- Dental Research Center, School of Dentistry, Research Institute of Dental Sciences, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Mehdi Ekhlasmandkermani
- Department of Periodontics, School of Dentistry, Shahid Beheshti University of Medical Sciences, Tehran, Iran
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Veiga A, Castro F, Rocha F, Oliveira AL. Protein-Based Hydroxyapatite Materials: Tuning Composition toward Biomedical Applications. ACS APPLIED BIO MATERIALS 2020; 3:3441-3455. [DOI: 10.1021/acsabm.0c00140] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Anabela Veiga
- LEPABE − Laboratory for Process Engineering, Environment, Biotechnology & Energy, Department of Chemical Engineering, Faculty of Engineering of Porto, University of Porto, Porto, Portugal
| | - Filipa Castro
- LEPABE − Laboratory for Process Engineering, Environment, Biotechnology & Energy, Department of Chemical Engineering, Faculty of Engineering of Porto, University of Porto, Porto, Portugal
| | - Fernando Rocha
- LEPABE − Laboratory for Process Engineering, Environment, Biotechnology & Energy, Department of Chemical Engineering, Faculty of Engineering of Porto, University of Porto, Porto, Portugal
| | - Ana L. Oliveira
- CBQF - Centro de Biotecnologia e Quı́mica Fina - Laboratório Associado, Escola Superior de Biotecnologia, Universidade Católica Portuguesa, Porto, Portugal
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Rosso MPDO, Oyadomari AT, Pomini KT, Della Coletta BB, Shindo JVTC, Ferreira Júnior RS, Barraviera B, Cassaro CV, Buchaim DV, Teixeira DDB, Barbalho SM, Alcalde MP, Duarte MAH, Andreo JC, Buchaim RL. Photobiomodulation Therapy Associated with Heterologous Fibrin Biopolymer and Bovine Bone Matrix Helps to Reconstruct Long Bones. Biomolecules 2020; 10:biom10030383. [PMID: 32121647 PMCID: PMC7175234 DOI: 10.3390/biom10030383] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2019] [Revised: 02/18/2020] [Accepted: 02/25/2020] [Indexed: 12/16/2022] Open
Abstract
Bone defects cause aesthetic and functional changes that affect the social, economic and especially the emotional life of human beings. This complication stimulates the scientific community to investigate strategies aimed at improving bone reconstruction processes using complementary therapies. Photobiomodulation therapy (PBMT) and the use of new biomaterials, including heterologous fibrin biopolymer (HFB), are included in this challenge. The objective of the present study was to evaluate the influence of photobiomodulation therapy on bone tibial reconstruction of rats with biomaterial consisting of lyophilized bovine bone matrix (BM) associated or not with heterologous fibrin biopolymer. Thirty male rats were randomly separated into three groups of 10 animals. In all animals, after the anesthetic procedure, a noncritical tibial defect of 2 mm was performed. The groups received the following treatments: Group 1: BM + PBMT, Group 2: BM + HFB and Group 3: BM + HFB + PBMT. The animals from Groups 1 and 3 were submitted to PBMT in the immediate postoperative period and every 48 h until the day of euthanasia that occurred at 14 and 42 days. Analyses by computed microtomography (µCT) and histomorphometry showed statistical difference in the percentage of bone formation between Groups 3 (BM + HB + PBMT) and 2 (BM + HFB) (26.4% ± 1.03% and 20.0% ± 1.87%, respectively) at 14 days and at 42 days (38.2% ± 1.59% and 31.6% ± 1.33%, respectively), and at 42 days there was presence of bone with mature characteristics and organized connective tissue. The µCT demonstrated BM particles filling the defect and the deposition of new bone in the superficial region, especially in the ruptured cortical. It was concluded that the association of PBMT with HFB and BM has the potential to assist in the process of reconstructing bone defects in the tibia of rats.
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Affiliation(s)
- Marcelie Priscila de Oliveira Rosso
- Department of Biological Sciences (Anatomy), Bauru School of Dentistry, University of São Paulo (USP), Alameda Dr. Octávio Pinheiro Brisolla, 9-75-Vila Universitaria, Bauru 17012-901, São Paulo, Brazil; (M.P.d.O.R.); (A.T.O.); (K.T.P.); (B.B.D.C.); (J.V.T.C.S.); (J.C.A.)
| | - Aline Tiemi Oyadomari
- Department of Biological Sciences (Anatomy), Bauru School of Dentistry, University of São Paulo (USP), Alameda Dr. Octávio Pinheiro Brisolla, 9-75-Vila Universitaria, Bauru 17012-901, São Paulo, Brazil; (M.P.d.O.R.); (A.T.O.); (K.T.P.); (B.B.D.C.); (J.V.T.C.S.); (J.C.A.)
| | - Karina Torres Pomini
- Department of Biological Sciences (Anatomy), Bauru School of Dentistry, University of São Paulo (USP), Alameda Dr. Octávio Pinheiro Brisolla, 9-75-Vila Universitaria, Bauru 17012-901, São Paulo, Brazil; (M.P.d.O.R.); (A.T.O.); (K.T.P.); (B.B.D.C.); (J.V.T.C.S.); (J.C.A.)
| | - Bruna Botteon Della Coletta
- Department of Biological Sciences (Anatomy), Bauru School of Dentistry, University of São Paulo (USP), Alameda Dr. Octávio Pinheiro Brisolla, 9-75-Vila Universitaria, Bauru 17012-901, São Paulo, Brazil; (M.P.d.O.R.); (A.T.O.); (K.T.P.); (B.B.D.C.); (J.V.T.C.S.); (J.C.A.)
| | - João Vitor Tadashi Cosin Shindo
- Department of Biological Sciences (Anatomy), Bauru School of Dentistry, University of São Paulo (USP), Alameda Dr. Octávio Pinheiro Brisolla, 9-75-Vila Universitaria, Bauru 17012-901, São Paulo, Brazil; (M.P.d.O.R.); (A.T.O.); (K.T.P.); (B.B.D.C.); (J.V.T.C.S.); (J.C.A.)
| | - Rui Seabra Ferreira Júnior
- Center for the Study of Venoms and Venomous Animals (CEVAP), São Paulo State University (Univ. Estadual Paulista, UNESP), Botucatu 18610-307, São Paulo, Brazil or (R.S.F.J.); (B.B.); (C.V.C.)
| | - Benedito Barraviera
- Center for the Study of Venoms and Venomous Animals (CEVAP), São Paulo State University (Univ. Estadual Paulista, UNESP), Botucatu 18610-307, São Paulo, Brazil or (R.S.F.J.); (B.B.); (C.V.C.)
| | - Claudia Vilalva Cassaro
- Center for the Study of Venoms and Venomous Animals (CEVAP), São Paulo State University (Univ. Estadual Paulista, UNESP), Botucatu 18610-307, São Paulo, Brazil or (R.S.F.J.); (B.B.); (C.V.C.)
| | - Daniela Vieira Buchaim
- Postgraduate Program in Structural and Functional Interactions in Rehabilitation, University of Marilia (UNIMAR), Avenue Hygino Muzzy Filho, 1001, Marília 17525-902, São Paulo, Brazil; (D.V.B.); (D.d.B.T.); (S.M.B.)
- Medical School, University Center of Adamantina (UniFAI), Nove de Julho Street, 730-Centro, Adamantina 17800-000, São Paulo, Brazil
| | - Daniel de Bortoli Teixeira
- Postgraduate Program in Structural and Functional Interactions in Rehabilitation, University of Marilia (UNIMAR), Avenue Hygino Muzzy Filho, 1001, Marília 17525-902, São Paulo, Brazil; (D.V.B.); (D.d.B.T.); (S.M.B.)
| | - Sandra Maria Barbalho
- Postgraduate Program in Structural and Functional Interactions in Rehabilitation, University of Marilia (UNIMAR), Avenue Hygino Muzzy Filho, 1001, Marília 17525-902, São Paulo, Brazil; (D.V.B.); (D.d.B.T.); (S.M.B.)
| | - Murilo Priori Alcalde
- Department of Health Science, University of the Sacred Heart (USC), Bauru 17011-160, São Paulo, Brazil;
- Department of Dentistry, Endodontics and Dental Materials, Bauru School of Dentistry, University of São Paulo (USP), Bauru 17012-901, São Paulo, Brazil;
| | - Marco Antonio Hungaro Duarte
- Department of Dentistry, Endodontics and Dental Materials, Bauru School of Dentistry, University of São Paulo (USP), Bauru 17012-901, São Paulo, Brazil;
| | - Jesus Carlos Andreo
- Department of Biological Sciences (Anatomy), Bauru School of Dentistry, University of São Paulo (USP), Alameda Dr. Octávio Pinheiro Brisolla, 9-75-Vila Universitaria, Bauru 17012-901, São Paulo, Brazil; (M.P.d.O.R.); (A.T.O.); (K.T.P.); (B.B.D.C.); (J.V.T.C.S.); (J.C.A.)
| | - Rogério Leone Buchaim
- Department of Biological Sciences (Anatomy), Bauru School of Dentistry, University of São Paulo (USP), Alameda Dr. Octávio Pinheiro Brisolla, 9-75-Vila Universitaria, Bauru 17012-901, São Paulo, Brazil; (M.P.d.O.R.); (A.T.O.); (K.T.P.); (B.B.D.C.); (J.V.T.C.S.); (J.C.A.)
- Postgraduate Program in Structural and Functional Interactions in Rehabilitation, University of Marilia (UNIMAR), Avenue Hygino Muzzy Filho, 1001, Marília 17525-902, São Paulo, Brazil; (D.V.B.); (D.d.B.T.); (S.M.B.)
- Correspondence: ; Tel.: +55-14-3235-8226
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Zhang Y, Wang J, Ma Y, Han B, Niu X, Liu J, Gao L, Wang J, Zhai X, Chu K, Yang L. Preparation of poly(lactic acid)/sintered hydroxyapatite composite biomaterial by supercritical CO2. Biomed Mater Eng 2018; 29:67-79. [PMID: 29254074 DOI: 10.3233/bme-171713] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Based on a kind of sintered hydroxyapatite (HA) with a good cytocompatibility, a series of polylactic acid (PLA) and PLA/HA with the various PLA:HA weight ratio (5:5, 4:6, 3:7, 2:8, 1:9) were fabricated by supercritical CO2. The physical and chemical properties were evaluated by pH, degradation, water absorption, porosity, density, mechanical property, and cytotoxicity respectively. With the increase of HA content, the pH value and porosity increased gradually, while weight loss rate and the density showed a gradual downward trend. Existence of HA can drastically improve the hydroscopicity of PLA scaffolds. The compression strength values slightly increased (p>0.05) from 39.96 MPa of PLA to 45.00 MPa of PLA/HA with the ratio of 7:3, subsequently, the values decreased (p<0.05) from 43.29 MPa (8:2) to 19.00 MPa (9:1). While the modulus of elasticity decreased (p<0.05) from 5.89 to 1.84 GPa with increasing HA content. The PLA/HA (8:2) promoted cell proliferation more significantly than any of other groups (p<0.05). Based on the results, the overall properties of porous scaffolds are the optimal when the weight ratio of PLA/HA is 8:2. Its pH, porosity, density, compression strength, and elasticity modulus are 7.39, 83.0%, 0.60g/cm-3, 34.1 MPa and 2.63 GPa, respectively. SEM observation presented a homogeneous distribution of HA in PLA matrix and a foam-like structure comprising interconnected pores.
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Affiliation(s)
- Yumin Zhang
- Shanxi University of Chinese Medicine, Taiyuan, Shanxi, China
| | - Jianru Wang
- Shanxi Medical University, Taiyuan, Shanxi, China
| | - Yanmiao Ma
- Shanxi University of Chinese Medicine, Taiyuan, Shanxi, China
| | - Bo Han
- Shanxi University of Chinese Medicine, Taiyuan, Shanxi, China
| | - Xiaojun Niu
- Shanxi University of Chinese Medicine, Taiyuan, Shanxi, China
| | - Jianchun Liu
- Shanxi University of Chinese Medicine, Taiyuan, Shanxi, China
| | - Lan Gao
- Shanxi University of Chinese Medicine, Taiyuan, Shanxi, China
| | - Jue Wang
- Shanxi University of Chinese Medicine, Taiyuan, Shanxi, China
| | - Xiaoyan Zhai
- Shanxi University of Chinese Medicine, Taiyuan, Shanxi, China
| | - Kaibo Chu
- Shanxi University of Chinese Medicine, Taiyuan, Shanxi, China
| | - Liwang Yang
- Shanxi University of Chinese Medicine, Taiyuan, Shanxi, China
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11
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Sanz M, Ferrantino L, Vignoletti F, de Sanctis M, Berglundh T. Guided bone regeneration of non-contained mandibular buccal bone defects using deproteinized bovine bone mineral and a collagen membrane: an experimental in vivo
investigation. Clin Oral Implants Res 2017; 28:1466-1476. [DOI: 10.1111/clr.13014] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/19/2017] [Indexed: 11/29/2022]
Affiliation(s)
- Mariano Sanz
- ETEP Research Group; Faculty of Odontology; University Complutense of Madrid; Madrid Spain
| | - Luca Ferrantino
- ETEP Research Group; Faculty of Odontology; University Complutense of Madrid; Madrid Spain
| | - Fabio Vignoletti
- ETEP Research Group; Faculty of Odontology; University Complutense of Madrid; Madrid Spain
| | | | - Tord Berglundh
- Department of Periodontology; Institute of Odontology; Sahlgrenska Academy; University of Gothenburg; Gothenburg Sweden
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12
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Barone A, Toti P, Quaranta A, Alfonsi F, Cucchi A, Negri B, Di Felice R, Marchionni S, Calvo-Guirado JL, Covani U, Nannmark U. Clinical and Histological changes after ridge preservation with two xenografts: preliminary results from a multicentre randomized controlled clinical trial. J Clin Periodontol 2017; 44:204-214. [PMID: 27883211 DOI: 10.1111/jcpe.12655] [Citation(s) in RCA: 42] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/18/2016] [Indexed: 01/26/2023]
Abstract
OBJECTIVES To evaluate and compare clinical and histological changes after ridge preservation procedures with those of spontaneous healing. MATERIALS AND METHODS Ninety patients were enrolled in the present randomized controlled clinical trial and underwent single-tooth extraction in the premolar/molar areas. Thirty sites were grafted with collagenated cortico-cancellous (coll), 30 sites with cortical (cort) porcine bone and 30 sites underwent natural healing. Primary (vertical and horizontal bone changes after 3 months) and secondary outcomes (histomorphometric after 3 months) were evaluated at implant placement. RESULTS The vertical bone changes at the grafted sockets were significantly (p < 0.0001) lower (0.30 mm for cort group and 0.57 mm for coll group) when compared to non-grafted sockets (2.10 mm for nat group). Moreover, the width reduction of the coll (0.93 mm) and cort (1.33 mm) groups was significantly lower (p < 0.0001) than the non-grafted group (3.60 mm). The analysis of subgroups attested that when premolar and molar sites were compared, the buccal bone loss appeared to be dependent both on tooth position and grafting material employed. CONCLUSION The ridge preservation procedures had significantly better outcomes when compared to natural healing. The biomaterials did not differ for maintenance of bone width; even though, the bone height seemed to be better preserved with the cortical porcine bone.
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Affiliation(s)
- Antonio Barone
- Chair of Oral Surgery and Implantology, Department of Surgery, University of Geneva, Geneva, Switzerland.,Tuscan Dental Institute, Versilia General Hospital, Lido di Camaiore, LU, Italy
| | - Paolo Toti
- Tuscan Dental Institute, Versilia General Hospital, Lido di Camaiore, LU, Italy.,Department of Surgical, Medical, Molecular and Critical Area Pathology, University of Pisa, Pisa, Italy
| | - Alessandro Quaranta
- School of Dentistry/Oral Health Centre of Western Australia, The University of Western Australia
| | - Fortunato Alfonsi
- Tuscan Dental Institute, Versilia General Hospital, Lido di Camaiore, LU, Italy.,Department of Surgical, Medical, Molecular and Critical Area Pathology, University of Pisa, Pisa, Italy
| | | | - Bruno Negri
- Universidad Católica San Antonio de Murcia (UCAM), Murcia, Spain
| | | | - Saverio Marchionni
- Tuscan Dental Institute, Versilia General Hospital, Lido di Camaiore, LU, Italy.,Department of Surgical, Medical, Molecular and Critical Area Pathology, University of Pisa, Pisa, Italy
| | | | - Ugo Covani
- Tuscan Dental Institute, Versilia General Hospital, Lido di Camaiore, LU, Italy.,Department of Surgical, Medical, Molecular and Critical Area Pathology, University of Pisa, Pisa, Italy
| | - Ulf Nannmark
- Department of Oral & Maxillofacial Surgery, The Sahlgrenska Academy Gothenburg University, Gothenburg, Sweden
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13
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UV Photofunctionalization Effect on Bone Graft in Critical One-Wall Defect around Implant: A Pilot Study in Beagle Dogs. BIOMED RESEARCH INTERNATIONAL 2016; 2016:4385279. [PMID: 28116296 PMCID: PMC5225323 DOI: 10.1155/2016/4385279] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/19/2016] [Revised: 11/03/2016] [Accepted: 12/01/2016] [Indexed: 11/17/2022]
Abstract
The purpose of this study was to compare and evaluate, through histomorphometric and radiological analysis, the effects of UV photofunctionalization on an implant placed over a critical defect area with and without a bone graft. Four female beagle dogs were first divided into control and bone graft groups. Each group was then subdivided into UV-treated and UV-untreated groups. The mandibular premolars in each dog were extracted. 12 weeks after extraction, implants were placed according to the condition of each group. Four and 12 weeks after implantation on left and right mandible, the dogs were sacrificed. The specimens were prepared for histomorphometric and micro-computed tomographic analysis. In both 4-week and 12-week groups, UV-treated implant surfaces showed better osseointegration than SA implant surfaces. Also, with implant surfaces placed over the critical defect with bone graft, UV photofunctionalization increased bone-to-implant contact (BIC) and new bone formation at the initial stage (4 weeks). Based on the results of this study, it can be suggested that UV photofunctionalization on the surface of implants placed over large critical defects with bone graft aids initial osseointegration and osteogenesis.
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14
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Dos Santos PL, de Molon RS, Queiroz TP, Okamoto R, de Souza Faloni AP, Gulinelli JL, Luvizuto ER, Garcia IR. Evaluation of bone substitutes for treatment of peri-implant bone defects: biomechanical, histological, and immunohistochemical analyses in the rabbit tibia. J Periodontal Implant Sci 2016; 46:176-96. [PMID: 27382506 PMCID: PMC4928206 DOI: 10.5051/jpis.2016.46.3.176] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2016] [Accepted: 05/28/2016] [Indexed: 11/18/2022] Open
Abstract
Purpose We sought to evaluate the effectiveness of bone substitutes in circumferential peri-implant defects created in the rabbit tibia. Methods Thirty rabbits received 45 implants in their left and right tibia. A circumferential bone defect (6.1 mm in diameter/4 mm depth) was created in each rabbit tibia using a trephine bur. A dental implant (4.1 mm × 8.5 mm) was installed after the creation of the defect, providing a 2-mm gap. The bone defect gaps between the implant and the bone were randomly filled according to the following groups: blood clot (CO), particulate Bio-Oss® (BI), and Bio-Oss® Collagen (BC). Ten animals were euthanized after periods of 15, 30, and 60 days. Biomechanical analysis by means of the removal torque of the implants, as well as histologic and immunohistochemical analyses for protein expression of osteocalcin (OC), Runx2, OPG, RANKL, and TRAP were evaluated. Results For biomechanics, BC showed a better biological response (61.00±15.28 Ncm) than CO (31.60±14.38 Ncm) at 30 days. Immunohistochemical analysis showed significantly different OC expression in CO and BC at 15 days, and also between the CO and BI groups, and between the CO and BC groups at 60 days. After 15 days, Runx2 expression was significantly different in the BI group compared to the CO and BC groups. RANKL expression was significantly different in the BI and CO groups and between the BI and BC groups at 15 days, and also between the BI and CO groups at 60 days. OPG expression was significantly higher at 60 days postoperatively in the BI group than the CO group. Conclusions Collectively, our data indicate that, compared to CO and BI, BC offered better bone healing, which was characterized by greater RUNX2, OC, and OPG immunolabeling, and required greater reversal torque for implant removal. Indeed, along with BI, BC presents promising biomechanical and biological properties supporting its possible use in osteoconductive grafts for filling peri-implant gaps.
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Affiliation(s)
- Pâmela Letícia Dos Santos
- Department of Oral and Maxillofacial Surgery and Implantology, Sagrado Coracao University - USC, Bauru, SP, Brazil
| | - Rafael Scaf de Molon
- Department of Diagnosis and Surgery, Sao Paulo State University - UNESP School of Dentistry at Araraquara, Araraquara, SP, Brazil
| | - Thallita Pereira Queiroz
- Department of Health Sciences, Implantology Post Graduation Course, University Center of Araraquara - UNIARA Dental School, SP, Brazil
| | - Roberta Okamoto
- Department of Basic Sciences, Sao Paulo State University - UNESP School of Dentistry at Araçatuba, Araçatuba, SP, Brazil
| | - Ana Paula de Souza Faloni
- Department of Health Sciences, Implantology Post Graduation Course, University Center of Araraquara - UNIARA Dental School, SP, Brazil
| | - Jéssica Lemos Gulinelli
- Department of Oral and Maxillofacial Surgery and Implantology, Sagrado Coracao University - USC, Bauru, SP, Brazil
| | - Eloá Rodrigues Luvizuto
- Department of Surgery and Integrated Clinic, Sao Paulo State University - UNESP School of Dentistry at Araçatuba, Araçatuba, SP, Brazil
| | - Idelmo Rangel Garcia
- Department of Surgery and Integrated Clinic, Sao Paulo State University - UNESP School of Dentistry at Araçatuba, Araçatuba, SP, Brazil
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15
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de Melo DG, de Santana Santos T, Sehn FP, de Oliveira E Silva ED, Martins-Filho PRS, Dourado ACAG. Evaluation of inorganic bovine bone graft in periodontal defects after third molar surgery. Ann Maxillofac Surg 2016; 5:198-202. [PMID: 26981470 PMCID: PMC4772560 DOI: 10.4103/2231-0746.175765] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Abstract
Aim: This study evaluated the e cacy of inorganic bovine bone graft (IBB) in periodontal defect after mandibular third molar (3M) surgery. Methods: The authors conducted a split-mouth, prospective, randomized, blinded, placebo-controlled clinical trial involving 20 participants with a mean age of 21.60 ± 6.5 years who had symmetrical bilateral lower 3M randomly assigned to receive IBB or left empty (blooding clot). The clinical variables studied were probing depth and clinical attachment level (CAL) at preoperative and postoperative periods of 10, 30, and 60 days. Radiographic measures included the distance from the alveolar bone crest to the cementoenamel junction and the bone density at 30 and 60 days postsurgical procedure. For statistical analysis, we used the paired t-test at a level of signi cance of 5%. Results: It was observed a reduction in pocket depth and CAL in both groups, but IBB did not provide better results than blooding clot (P > 0.05). On the other hand, IBB group showed an increased in the bone density, and a decrease in the periodontal defect on the distal surface of second molar (2M) after 30 and 60 days of surgery compared to the control group (P < 0.05). Conclusion: The use of inorganic bone graft (GenOx) did not enhance the probing depth after 3M removal. Although the radiographic ndings have showed an increase in bone density and a decrease in the periodontal defect on the distal surface of the 2M, we cannot recommend the use of IBB as a treatment for periodontal defect prevention after 3M removal.
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Affiliation(s)
- Daniela Guimaraes de Melo
- Department of Oral and Maxillofacial Surgery, Pernambuco Dental School, University of Pernambuco, Pernambuco, Brazil
| | | | - Felipe Perraro Sehn
- Department of Dentistry, Federal University of Pernambuco, Pernambuco, Brazil
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16
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Sumanth KS, Savitha B, Lotwani V, Revathi K, Reddy S. Treating Dehiscence During Implant Placement and Loading on Angled Abutment in Maxillary Lateral Incisor Region: A Case Report. J Indian Prosthodont Soc 2015. [PMID: 26199539 DOI: 10.1007/s13191-014-0376-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
Abstract
The primary factor causing recession is the morphology and anatomy of the dentition. The facial bony plate overlying the root is usually very thin. The complete absence of bone over the facial root surface is referred to as dehiscence. Such buccal bone defects in case of implant dentistry threaten the survival of dental implant. Many surgical techniques are introduced to enhance alveolar bone volume for placing the dental implants. Guided bone regeneration (GBR) is one such established surgical technique for correcting buccal dehiscence defects, along with the use of various barrier membranes for the same. This case report describes an implant placement in the maxillary left lateral incisor region showing dehiscence on the labial cortical plate, along with bone graft and GTR membrane.
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Affiliation(s)
- K S Sumanth
- Department of Periodontics, A.C.P.M Dental College, Dhule, Maharashtra India
| | - B Savitha
- Department of Periodontics, A.C.P.M Dental College, Dhule, Maharashtra India
| | - Vijayanti Lotwani
- Department of Periodontics, A.C.P.M Dental College, Dhule, Maharashtra India
| | - K Revathi
- Department of Periodontics, A.C.P.M Dental College, Dhule, Maharashtra India
| | - Srikanth Reddy
- Department of Periodontics, A.C.P.M Dental College, Dhule, Maharashtra India
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17
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Kotsakis G, Chrepa V, Marcou N, Prasad H, Hinrichs J. Flapless alveolar ridge preservation utilizing the "socket-plug" technique: clinical technique and review of the literature. J ORAL IMPLANTOL 2015; 40:690-8. [PMID: 25506661 DOI: 10.1563/aaid-joi-d-12-00028] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
It has been documented that after every extraction of one or more teeth, the alveolar bone of the respective region undergoes resorption and atrophy. Therefore, ridge preservation techniques are often employed after tooth extraction to limit this phenomenon. The benefits of a flapless procedure include maintenance of the buccal keratinized gingiva, prevention of alterations to the gingival contours, and migration of the mucogingival junction that are often experienced after raising a flap. The purpose of this article is to review the literature concerning flapless ridge preservation techniques with the aid of collagen plugs for occlusion of the socket. The term "socket-plug" technique is introduced to describe these techniques. The basic steps of the "socket-plug" technique consist of atraumatic tooth extraction, placement of the appropriate biomaterials in the extraction site, preservation of soft tissue architecture employing a flapless technique, and placement and stabilization of the collagen plug. A case example is presented that illustrates the steps used in this technique.
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Affiliation(s)
- Georgios Kotsakis
- 1 Advanced Education Program in Periodontology, University of Minnesota, Minneapolis, Minn
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18
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Pei T, Nie R, Yang G, Che Y, Zhang D, Zhou Y. A Comparative Study of Early Bone Formation with PRF, Bio-Oss and Osteoid Hydroxyapatite after Tooth Extraction in Rabbits. J HARD TISSUE BIOL 2015. [DOI: 10.2485/jhtb.24.29] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Affiliation(s)
- Tingting Pei
- Implantology Center, School of Stomatology, Jilin University
| | - Ran Nie
- Implantology Center, School of Stomatology, Jilin University
| | - Gang Yang
- Implantology Center, School of Stomatology, Jilin University
| | - Yanhai Che
- Laboratory of Mechanism of Tooth Development and Bone Remodeling and Regeneration, School of Stomatology, Jilin University
| | - Donglu Zhang
- Laboratory of Mechanism of Tooth Development and Bone Remodeling and Regeneration, School of Stomatology, Jilin University
| | - Yanmin Zhou
- Implantology Center, School of Stomatology, Jilin University
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19
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Antunes AA, Grossi-Oliveira GA, Martins-Neto EC, De Almeida ALG, Salata LA. Treatment of Circumferential Defects with Osseoconductive Xenografts of Different Porosities: A Histological, Histometric, Resonance Frequency Analysis, and Micro-CT Study in Dogs. Clin Implant Dent Relat Res 2013; 17 Suppl 1:e202-20. [DOI: 10.1111/cid.12181] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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20
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Xuan F, Lee CU, Son JS, Jeong SM, Choi BH. A comparative study of the regenerative effect of sinus bone grafting with platelet-rich fibrin-mixed Bio-Oss® and commercial fibrin-mixed Bio-Oss®: an experimental study. J Craniomaxillofac Surg 2013; 42:e47-50. [PMID: 23911120 DOI: 10.1016/j.jcms.2013.05.029] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2012] [Revised: 05/29/2013] [Accepted: 05/30/2013] [Indexed: 12/12/2022] Open
Abstract
Anorganic bovine bone (Bio-Oss®) particles are one of the most popular grafting materials. The particles are often mixed with platelet-rich fibrin (PRF) or a commercial fibrin (Tisseel®) to form a mouldable graft material. The objective of this study was to compare the potentials of PRF-mixed Bio-Oss® and Tisseel®-mixed Bio-Oss® to enhance bone regeneration in a canine sinus model. Six mongrel dogs were used in this study. After elevating the sinus membrane in both maxillary sinus cavities, an implant was placed into the sinus cavity. In one of the sinus cavities, the PRF/Bio-Oss® composite was grafted, and the Tisseel®/Bio-Oss® composite was grafted in the other sinus cavity. After a 6 month healing period, bone formation in the graft sites and bone-implant contact were evaluated. The mean osseointegration rate was 43.5 ± 12.4% and new bone formation rate 41.8 ± 5.9% in the PRF/Bio-Oss® composite sites. In the Tisseel®/Bio-Oss® composite sites they were 30.7 ± 7.9% and 31.3 ± 6.4%. There were statistically significant differences between the groups. The findings from this study suggest that when platelet-rich fibrin is used as an adjunct to Bio-Oss® particles for bone augmentation in the maxillary sinus, bone formation in the graft sites is significantly greater than when Tisseel® is used.
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Affiliation(s)
- Feng Xuan
- Department of Dentistry, Yonsei University Wonju College of Medicine, Wonju, South Korea
| | - Chun-Ui Lee
- Department of Dentistry, Yonsei University Wonju College of Medicine, Wonju, South Korea
| | - Jeong-Seog Son
- Department of Dentistry, Yonsei University Wonju College of Medicine, Wonju, South Korea
| | - Seung-Mi Jeong
- Department of Dentistry, Yonsei University Wonju College of Medicine, Wonju, South Korea
| | - Byung-Ho Choi
- Department of Dentistry, Yonsei University Wonju College of Medicine, Wonju, South Korea.
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21
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Sivolella S, Bressan E, Salata LA, Quiñones ME, Lang NP, Botticelli D. Deproteinized bovine bone mineral particles and osseointegration of implants without primary bone contact: an experimental study in dogs. Clin Oral Implants Res 2013; 25:296-303. [PMID: 23560606 DOI: 10.1111/clr.12154] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/26/2013] [Indexed: 10/27/2022]
Abstract
OBJECTIVES To evaluate the influence on osseointegration of Deproteinized bovine bone mineral (DBBM) particles used to fill defects of at least 1 mm around implants having no primary contact with bone. MATERIAL AND METHODS Premolars and first molars were extracted bilaterally from the mandible of six Labrador dogs. After 3 months of healing, mucoperiosteal full-thickness flaps were elevated, and one recipient site was prepared in the molar region of each hemi-mandible to place implants. These were installed with a deliberate circumferential and periapical space to the bone walls of 1.2 mm. All implants were stabilized with passive fixation plates to maintain the implants in situ and without any contact with the implant bed. The control sites were left to be filled with coagulum, while at the test sites, the residual gap was filled with DBBM. After 3 months of submerged healing, the animals were sacrificed. Ground sections were prepared and analyzed histomorphometrically. RESULTS Mineralized bone-to-implant contact was 4.0% and 3.9% for control and test sites, respectively. The width of the residual defects was 0.48 mm and 0.88 mm at the control and test sites, respectively. The percentage of implant surface covered by a layer of dense connective tissue of 0.12 mm of width on average was 84.9% and 88.5% at the control and test sites, respectively. CONCLUSION A minor and not predictable degree of contact or distance osteogenesis was obtained on the implant surface when primary contact of the implant surface with the implant bed had deliberately been avoided. DBBM grafting of the artificial gap did not favor osseointegration. Neither did it enhance the ability to bridge the gap with newly formed bone in an artificial defect wider than 1 mm.
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Affiliation(s)
- Stefano Sivolella
- Faculty of Dentistry, University of Medical Science, La Habana, Cuba.,School of Dentistry, University of Padova, Padova, Italy
| | - Eriberto Bressan
- Faculty of Dentistry, University of Medical Science, La Habana, Cuba.,School of Dentistry, University of Padova, Padova, Italy
| | - Luiz A Salata
- Faculty of Dentistry of Ribeirão Preto, São Paulo University USP, Ribeirão Preto, Brazil
| | - Maria E Quiñones
- Faculty of Dentistry, University of Medical Science, La Habana, Cuba
| | - Niklaus P Lang
- The University of Hong Kong, Prince Philip Dental Hospital, Hong Kong, SAR, China
| | - Daniele Botticelli
- The University of Hong Kong, Prince Philip Dental Hospital, Hong Kong, SAR, China.,Faculdade de Odontologia de Araçatuba, UNESP - Univ Estadual Paulista, São Paulo, Brasil.,Oral Surgery Division, ARDEC, Ariminum Odontologica, Rimini, Italy
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22
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Mordenfeld A, Johansson CB, Albrektsson T, Hallman M. A randomized and controlled clinical trial of two different compositions of deproteinized bovine bone and autogenous bone used for lateral ridge augmentation. Clin Oral Implants Res 2013; 25:310-320. [DOI: 10.1111/clr.12143] [Citation(s) in RCA: 47] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/06/2013] [Indexed: 11/30/2022]
Affiliation(s)
- Arne Mordenfeld
- Department of Oral & Maxillofacial Surgery; Public Health Service; Gävle Sweden
- Centre for Research and Development; Uppsala University/Gävleborg County Council; Gävleborg Sweden
- Department of Materials Science & Technology; Malmö University; Malmö Sweden
| | - Carina B. Johansson
- Department of Prosthodontics / Dental Materials Science; the Sahlgrenska academy; University of Gothenburg; Gothenburg Sweden
| | - Tomas Albrektsson
- Department of Materials Science & Technology; Malmö University; Malmö Sweden
- Department of Biomaterials; Institute for Clinical Sciences; the Sahlgrenska Academy; University of Gothenburg; Gothenburg Sweden
| | - Mats Hallman
- Department of Oral & Maxillofacial Surgery; Public Health Service; Gävle Sweden
- Centre for Research and Development; Uppsala University/Gävleborg County Council; Gävleborg Sweden
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23
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de Melo WM, de Oliveira FS, Marcantonio E, Beloti MM, de Oliveira PT, Rosa AL. Autogenous bone combined with anorganic bovine bone for maxillary sinus augmentation: analysis of the osteogenic potential of cells derived from the donor and the grafted sites. Clin Oral Implants Res 2013; 25:603-9. [PMID: 23289911 DOI: 10.1111/clr.12100] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/18/2012] [Indexed: 11/30/2022]
Abstract
OBJECTIVES This study aimed to comparatively evaluate the in vitro osteogenic potential of cells obtained from the mandibular ramus (MR, autogenous bone donor site) and from the maxillary sinus (MS) bone grafted with a mixture of anorganic bovine bone (ABB) and MR prior to titanium implant placement (MS, grafted implant site). MATERIAL AND METHODS Cells were obtained from three patients subjected to MS floor augmentation with a 1 : 1 mixture of ABB (GenOx Inorg(®) ) and MR. At the time of the sinus lift procedure and after 8 months, prior to implant placement, bone fragments were taken from MR and MS, respectively, and subjected to trypsin-collagenase digestion for primary cell culturing. Subcultured cells were grown under osteogenic condition for up to 21 days and assayed for proliferation/viability, osteoblast marker mRNA levels, alkaline phosphatase (ALP) activity and calcium content/Alizarin red staining. ALP activity was also determined in primary explant cultures exposed to GenOx Inorg(®) (1 : 1 with MR) for 7 days. Data were compared using either the Mann-Whitney U-test or the Kruskal-Wallis test. RESULTS MS cultures exhibited a significantly lower osteogenic potential compared with MR cultures, with a progressive increase in cell proliferation together with a decrease in osteoblast markers, reduced ALP activity and calcium content. Exposure of MR-derived primary cultures to GenOx Inorg(®) inhibited ALP activity. CONCLUSION These results suggest that the use of GenOx Inorg(®) in combination with MR fragments for MS floor augmentation inhibits the osteoblast cell differentiation at the implant site in the long term.
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Affiliation(s)
- Willian M de Melo
- School of Dentistry of Ribeirão Preto, University of São Paulo, Ribeirão Preto, SP, Brazil
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Guided Bone Regeneration Using Cyanoacrylate-Combined Calcium Phosphate in a Dehiscence Defect: A Histologic Study in Dogs. J Oral Maxillofac Surg 2012; 70:2070-9. [DOI: 10.1016/j.joms.2012.04.044] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2012] [Revised: 04/23/2012] [Accepted: 04/27/2012] [Indexed: 11/20/2022]
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Barone A, Ricci M, Tonelli P, Santini S, Covani U. Tissue changes of extraction sockets in humans: a comparison of spontaneous healing vs. ridge preservation with secondary soft tissue healing. Clin Oral Implants Res 2012; 24:1231-7. [PMID: 22784417 DOI: 10.1111/j.1600-0501.2012.02535.x] [Citation(s) in RCA: 62] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/03/2012] [Indexed: 11/27/2022]
Abstract
INTRODUCTION As a consequence of extraction, the height of the buccal wall tends to decrease and results in the disappearance of bundle bone. To modify bone remodelling after extraction, various ridge preservation techniques have been proposed. The present research was drawn up with the following considerations in mind: to evaluate and to compare changes of hard and soft tissues in post-extraction sockets which received a ridge preservation procedure, with post-extraction sockets which had healed naturally. MATERIALS AND METHODS Each patient was randomly allocated to a test or control group using a specific software package. After extraction, the sockets were carefully inspected and any granulation tissue was removed. The control sites received silk sutures to stabilize the clot without any grafting material. The test sites were grafted with corticocancellous porcine bone and a collagen membrane. All experimental sites had the membranes left exposed to the oral cavity with a secondary wound healing. The thickness of the buccal alveolar bone, if present, was carefully measured at the time of tooth extraction using a calliper at 1 mm from the edge of the wall. The following clinical parameters were evaluated at baseline and after 4 months at implant placement: vertical bone changes, horizontal bone changes and width of keratinized gingiva. The length, diameter and need for additional bone augmentation were assessed for both groups at the time of implant insertion. RESULTS The control group showed vertical bone resorption of 1 ± 0.7 mm, 2.1 ± 0.6 mm, 1 ± 0.8 mm and 2 ± 0.73 mm at the mesial, vestibular, distal and lingual sites respectively. Moreover, changes in horizontal dimension showed an average resorption of 3.6 ± 0.72 mm. The test sites showed a horizontal bone remodelling of 0.3 ± 0.76 mm, 1.1 ± 0.96 mm, 0.3 ± 0.85 mm, 0.9 ± 0.98 mm at the mesial, vestibular, distal and lingual sites respectively. The horizontal bone resorption at the test sites was 1.6 ± 0.55 mm. The keratinized gingiva showed a coronal shift of 0.7 mm in the control group when compared to 1.1 mm in the test group. In addition, 42% of sites in the control group required an additional bone augmentation at implant placement, when compared to 7% in the test sites. CONCLUSIONS This study clearly points out that an alveolar ridge preservation technique performed with collagenated porcine bone and a resorbable membrane--according to the procedure reported in this study--was able to limit the contour changes after tooth extraction. Finally, the test sites showed a better preservation of facial keratinized tissue when compared to control sites; grafted sites allowed the placement of longer and wider implants when compared to implants inserted in non-grafted sites.
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Affiliation(s)
- Antonio Barone
- Department of Surgery, University of Pisa, Pisa, Italy; Istituto Stomatologico Tirreno, Versilia General Hospital, Lido di Camaiore (LU), Italy
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Anduze-Acher G, Brochery B, Felizardo R, Valentini P, Katsahian S, Bouchard P. Change in sinus membrane dimension following sinus floor elevation: a retrospective cohort study. Clin Oral Implants Res 2012; 24:1123-9. [DOI: 10.1111/j.1600-0501.2012.02520.x] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/10/2012] [Indexed: 11/30/2022]
Affiliation(s)
- Guillaume Anduze-Acher
- Department of Periodontology; Service of Odontology, Rothschild Hospital, AP-HP; Paris 7 - Denis Diderot University; U.F.R. of Odontology; Paris; France
| | - Benoit Brochery
- Department of Periodontology; Service of Odontology, Rothschild Hospital, AP-HP; Paris 7 - Denis Diderot University; U.F.R. of Odontology; Paris; France
| | - Rufino Felizardo
- Department of Oral Imaging; Service of Odontology, Rothschild Hospital; AP-HP; Paris 7 - Denis Diderot University; U.F.R. of Odontology; Paris; France
| | - Pascal Valentini
- European Post Graduate Program of Oral Implantology Institute of Health; University of Corsica Pasquale Paoli; Corte; France
| | - Sandrine Katsahian
- Research Clinic Unit, Mondor Hospital; AP-HP, Paris 12-Paris Est Créteil University; U.F.R. of Medicine; Paris; France
| | - Philippe Bouchard
- Department of Periodontology; Service of Odontology, Rothschild Hospital, AP-HP; Paris 7 - Denis Diderot University; U.F.R. of Odontology; Paris; France
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Lee JS, Park WY, Cha JK, Jung UW, Kim CS, Lee YK, Choi SH. Periodontal tissue reaction to customized nano-hydroxyapatite block scaffold in one-wall intrabony defect: a histologic study in dogs. J Periodontal Implant Sci 2012; 42:50-8. [PMID: 22586523 PMCID: PMC3349047 DOI: 10.5051/jpis.2012.42.2.50] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2012] [Accepted: 03/14/2012] [Indexed: 11/17/2022] Open
Abstract
Purpose This study evaluated histologically the tissue responses to and the effects of a customized nano-hydroxyapatite (n-HA) block bone graft on periodontal regeneration in a one-wall periodontal-defect model. Methods A customized block bone for filling in the standardized periodontal defect was fabricated from prefabricated n-HA powders and a polymeric sponge. Bilateral 4×4×5 mm (buccolingual width×mesiodistal width×depth), one-wall, critical-size intrabony periodontal defects were surgically created at the mandibular second and fourth premolars of five Beagle dogs. In each dog, one defect was filled with block-type HA and the other served as a sham-surgery control. The animals were sacrificed following an 8-week healing interval for clinical and histological evaluations. Results Although the sites that received an n-HA block showed minimal bone formation, the n-HA block was maintained within the defect with its original hexahedral shape. In addition, only a limited inflammatory reaction was observed at sites that received an n-HA block, which might have been due to the high stability of the customized block bone. Conclusions In the limitation of this study, customized n-HA block could provide a space for periodontal tissue engineering, with minimal inflammation.
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Affiliation(s)
- Jung-Seok Lee
- Department of Periodontology, Research Institute for Periodontal Regeneration, Yonsei University College of Dentistry, Seoul, Korea
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De Santis E, Lang NP, Cesaretti G, Mainetti T, Beolchini M, Botticelli D. Healing outcomes at implants installed in sites augmented with particulate autologous bone and xenografts. An experimental study in dogs. Clin Oral Implants Res 2012; 24:77-86. [DOI: 10.1111/j.1600-0501.2012.02456.x] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/05/2012] [Indexed: 11/30/2022]
Affiliation(s)
| | - Niklaus P. Lang
- The University of Hong Kong, Prince Philip Dental Hospital; Hong Kong; China
| | | | - Tomaso Mainetti
- Faculty of Dentistry; University of Medical Science; Habana; Cuba
| | - Marco Beolchini
- Faculty of Dentistry; University of Medical Science; Habana; Cuba
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Wohlfahrt JC, Aass AM, Rønold HJ, Heijl L, Haugen HJ, Lyngstadaas SP. Microcomputed Tomographic and Histologic Analysis of Animal Experimental Degree II Furcation Defects Treated With Porous Titanium Granules or Deproteinized Bovine Bone. J Periodontol 2012; 83:211-21. [DOI: 10.1902/jop.2011.110128] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
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Agnihotri A, Agnihotri D. Maxillary Sinus Lift Up: An Indirect Approach for Implant Placement in Posterior Maxilla. ACTA ACUST UNITED AC 2012. [DOI: 10.5005/jp-journals-10012-1075] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
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Jain V, TarunKumar AB. Alveolar Ridge Preservation with β-TCP Graft and Platelet-Rich Fibrin. ACTA ACUST UNITED AC 2012. [DOI: 10.5005/jp-journals-10012-1074] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Deepthi BC, Babu CLS, Rohit P, Mallikarjuna DM, Raj RB. Correlation between Gingival Phenotype, Residual Ridge Height and the Schneiderian Membrane. ACTA ACUST UNITED AC 2012. [DOI: 10.5005/jp-journals-10012-1077] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Shayegh S, Semyari H, Shahraki AF, Hakimaneh MR. Implant-retained Mandibular Overdentures: A Comparative Study of Immediate Loading vs Delayed Loading after One Year. ACTA ACUST UNITED AC 2012. [DOI: 10.5005/jp-journals-10012-1076] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Jain A, Chaturvedi R, Pahuja B. Comparative Evaluation of the Efficacy of Calcium Sulfate Bone Grafts in Crystalline and Nano-Crystalline Forms in Fresh Extraction Socket Sites: A Radiographic and Histological Pilot Study. ACTA ACUST UNITED AC 2012. [DOI: 10.5005/jp-journals-10012-1067] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Artzi Z, Nemcovsky CE, Tal H, Kozlovsky A. Timing of implant placement and augmentation with bone replacement material: clinical assessment at 8 and 16 months. Clin Implant Dent Relat Res 2011; 15:121-129. [PMID: 22176691 DOI: 10.1111/j.1708-8208.2011.00421.x] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
PURPOSE The purpose of this study is to evaluate implants placed at different times of bone augmentation. MATERIALS AND METHODS Four implants were placed in seven dogs: one at a 6-month bovine mineral grafted site (6-month Bio-Oss® grafted site [6mBio]), one at a grafted membrane-protected simultaneously augmented (Fresh Bio-Oss® grafted site [FrBio]) site, one at a clotted (nongrafted clotted membrane-protected site [Clot]) membrane-protected site, and one at a pristine (nongrafted uncovered site [Cont]) site. Implants were exposed after 6 months. The same protocol was repeated on the contralateral side, at a delay of 8 months. Peri-implant care was performed throughout the hygienic phase (2 and 10 months, respectively) every 48 to 72 hours. Probing depth and bleeding on probing were recorded. Implant stability was determined by a Periotest® (Medizintechnik Gulden, Modautal, Germany). Statistical analysis was conducted using analysis of variance with repeated measures. RESULTS Average probing depth at the simultaneously grafted sites was 2.21 mm and 2.03 mm at 8 and 16 months, respectively. At the 6-month grafted sites, it was 1.96 mm and 1.57 mm. At the Clot sites, it was 2.68 mm and 2.07 mm, and 2.21 mm and 1.82 mm at the Cont sites, respectively. The average bleeding on probing was 0.50 and 0.42 at the FrBio sites, and 0.35 and 0.07 at the 6mBio sites during the respective periods. At the Clot sites, it was 0.50 and 0.28, and at the Cont sites, 0.43 and 0.21, respectively. Probing depth significantly reduced over the time at 6mBio, Clot, and Cont sites (p < .03). Average implant stability score at the FrBio sites was -0.24 and -0.27, and -0.50 and -0.46 at the 6mBio sites, at 8 and 16 months, respectively. At the Clot sites, it was -0.35 and -0.46. Cont sites averaged -0.37 at both periods. Implant stability was significantly higher (p < .005) comparing 6mBio over FrBio, 6mBio over Cont, and Clot over FrBio sites. CONCLUSIONS Immediate and delayed augmentations are safe modes. Probing depth and bleeding indices gradually improved along time. Implant stability was higher at the delayed mode.
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Affiliation(s)
- Zvi Artzi
- Graduate Periodontics, Department of Periodontology and Dental Implantology, School of Dental Medicine, Tel Aviv University, Tel Aviv, Israel.
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Mladenović Ž, Sahlin-Platt A, Andersson B, Johansson A, Björn E, Ransjö M. In vitrostudy of the biological interface of Bio-Oss: implications of the experimental setup. Clin Oral Implants Res 2011; 24:329-35. [DOI: 10.1111/j.1600-0501.2011.02334.x] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/25/2011] [Indexed: 02/02/2023]
Affiliation(s)
| | | | - Britta Andersson
- Department of Medicine Solna; Karolinska Institutet; Stockholm; Sweden
| | | | - Erik Björn
- Department of Chemistry; Umeå University; Umeå; Sweden
| | - Maria Ransjö
- Department of Odontology; Umeå University; Umeå; Sweden
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Gholami GA, Najafi B, Mashhadiabbas F, Goetz W, Najafi S. Clinical, histologic and histomorphometric evaluation of socket preservation using a synthetic nanocrystalline hydroxyapatite in comparison with a bovine xenograft: a randomized clinical trial. Clin Oral Implants Res 2011; 23:1198-204. [PMID: 22092485 DOI: 10.1111/j.1600-0501.2011.02288.x] [Citation(s) in RCA: 73] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/03/2011] [Indexed: 02/05/2023]
Abstract
OBJECTIVES The aim of this study was to compare a nanocrystalline hydroxyapatite (NCHA), NanoBone(®) and a deproteinized bovine bone mineral (DBBM), Bio-Oss(®) with a collagen membrane on the horizontal ridge width alterations following tooth extraction, in addition to histologic aspects of the grafted extraction sockets. MATERIAL AND METHODS In this randomized clinical trial, 28 symmetrical, non-molar, extraction sockets using a split-mouth design in 12 patients (eight women and four men; aged 21-60; mean 44.6 ± 11.4 years), were randomly selected in the first group to be grafted with DBBM granules covered with a collagen membrane and in the other group grafted with NCHA covered with a collagen membrane. Following extraction horizontal ridge width was measured using caliper and was blindly compared to the dimensions measured prior to implant placement, at the 6- to 8-month follow-up. Subsequently, a 2 × 6 mm trephine core was obtained with aid of acrylic stent and routine histologic preparation was performed on the specimens. RESULTS The width of the DBBM group decreased from 7.75 ± 1.55 to 6.68 ± 1.85 mm (P < 0.05), whereas the width of the NCHA group decreased from 7.36 ± 1.94 to 6.43 ± 2.08 mm (P < 0.05). The mean between-group difference did not reach statistical significance (P = 0.62). Furthermore, histologic and histomorphometric analyses revealed 28.63 ± 12.53% vital bone in NCHA group vs. 27.35 ± 12.39% in DBBM group, and no statistically significant difference between the groups (P = 0.68). CONCLUSION Socket preservation using either NCHA or DBBM in combination with collagen membrane, results in similar, limited horizontal ridge width alterations following tooth extraction.
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Affiliation(s)
- Gholam Ali Gholami
- Department of Periodontics, Dental School, Shaheed Beheshti University of Medical Sciences, Tehran, Iran
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Sirin Y, Olgac V, Dogru-Abbasoglu S, Tapul L, Aktas S, Soley S. The influence of hyperbaric oxygen treatment on the healing of experimental defects filled with different bone graft substitutes. Int J Med Sci 2011; 8:114-25. [PMID: 21326954 PMCID: PMC3039227 DOI: 10.7150/ijms.8.114] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/13/2010] [Accepted: 01/31/2011] [Indexed: 11/17/2022] Open
Abstract
To assess potential effects of hyperbaric oxygen (HBOT) on artificial bone grafts, β - Tricalcium phosphate (β-TCP) and calcium phosphate coated bovine bone (CPCBB) substitutes were applied to standard bone defects in rat tibiae. The control defects were left empty. Half of the animals received 60 minutes of 2.4 atmosphere absolute (ATA) of HBOT. Rats were sacrificed at one, two and four weeks. Bone healing was assessed histologically and histomorphometrically using light microscopy. The periosteum over the bone defects was examined ultrastructurally. Cardiac blood was collected to determine the serum osteocalcin levels. The HBOT increased new bone formation in the unfilled controls and β-TCP groups and significantly decreased cartilage matrix and fibrous tissue formations in all groups. Active osteoblasts and highly organized collagen fibrils were prominent in the periosteum of β-TCP and control groups. Serum osteocalcin levels also increased with HBOT. The healing of defects filled with CPCBB was similar to the controls and it did not respond to HBOT. These findings suggested that the HBOT had beneficial effects on the healing of unfilled bone defects and those filled with β-TCP bone substitute but not with CPCBB, indicating a material-specific influence pattern of HBOT.
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Affiliation(s)
- Yigit Sirin
- Istanbul University, Faculty of Dentistry, Department of Oral Surgery, Istanbul, Turkey.
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Deproteinized bovine bone in periodontal and implant surgery. Dent Mater 2011; 27:61-70. [DOI: 10.1016/j.dental.2010.10.017] [Citation(s) in RCA: 81] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2010] [Accepted: 10/22/2010] [Indexed: 11/18/2022]
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Rass MA. Interim endodontic therapy for alveolar socket bone regeneration of infected hopeless teeth prior to implant therapy. J ORAL IMPLANTOL 2010; 36:37-59. [PMID: 20218869 DOI: 10.1563/aaid-joi-d-09-00040] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
The immediate placement of implants in the fresh extraction sockets of infected teeth with periradicular and periapical lesions is contraindicated because of both the infection and the loss of architecture required for proper implant placement. There are 4 approaches for implant replacement of a hopeless tooth with lesions: (1) extraction and delayed implant placement; (2) extraction, debridement, guided bone regeneration (GBR), guided tissue regeneration (GTR), and delayed implant placement; (3) extraction, intrasocket debridement, and immediate implant placement; or (4) extraction, debridement, GBR, GTR, and simultaneous implant placement. The extraction of such hopeless teeth often results in large bone and soft tissue defects that are difficult to repair. This article introduces an alternative approach: interim endodontic implant site preparation, defined as a transitional, surgical, or nonsurgical endodontic treatment to regenerate the hopeless tooth bone defects and prepare the site for proper implant placement. This article describes 3 distinct interim endodontic protocols used to manage 5 patients, all of whom had severely infected hopeless teeth with large lesions and were treatment planned for implant replacement: the first, interim nonsurgical endodontic treatment to restore the normal anatomy of the infected hopeless tooth; the second, interim surgical endodontics on the hopeless tooth with preexisting endodontic treatment to regenerate apical bone for primary implant stability, thus avoiding the involvement of the maxillary sinus and other critical anatomic structures; and the third, interim surgical endodontics on the hopeless tooth with preexisting endodontic treatment to confine the size of the osseous defect and simplify the GBR and GTR procedures. The outcome of interim endodontic treatment on these 5 patients demonstrated that tooth extraction would have been a less predictable approach. The interim treatment changed the overall direction of the patients' dental care. When treated, these hopeless teeth served many preventive, biologic, and esthetic functions. The infections of the alveolar sockets were eliminated, the alveolar bone defects were repaired through normal bone regeneration, and sockets anatomies were maintained or restored. Furthermore, the patients were spared maxillary sinus surgery and the possible complications resulting from major GBR and GTR procedures. In summary, the interim treatment facilitated tooth extraction and immediate implant placement.
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Affiliation(s)
- Marwan Abou Rass
- Prince AbdulRahman Advanced Dental Institute, Riyadh, Kingdom of Saudi Arabia.
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Kalia P, Coathup MJ, Oussedik S, Konan S, Dodd M, Haddad FS, Blunn GW. Augmentation of bone growth onto the acetabular cup surface using bone marrow stromal cells in total hip replacement surgery. Tissue Eng Part A 2010; 15:3689-96. [PMID: 19505197 DOI: 10.1089/ten.tea.2008.0676] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Aseptic loosening of acetabular components in total hip arthroplasty is the major cause of implant failure. Our hypothesis was that spraying autologous bone marrow-derived stromal cells (BMSCs) in fibrin glue onto the surface of hydroxyapatite-coated uncemented acetabular components would increase bone formation and contact in a caprine model. Ten million BMSCs were sprayed onto the acetabular cup at the time of surgery. Animals in the control group received fibrin glue only. Ground reaction force measurements were taken preoperatively and at 6 and 12 weeks postsurgery. After retrieval at 12 weeks new bone formation, bone-implant contact and fibrous tissue thickness adjacent to the cup were quantified. Viability and proliferation assays showed that the majority of the BMSCs survived spraying in fibrin glue at pressures of up to 1.5 atm. New bone growth adjacent to the bone implant interface in the BMSC-treated group (71.42 +/- 8.97%) was 30% greater than in control (54.22 +/- 16.56%) although this difference was not statistically significant. However, significantly increased new bone formation was measured at the periphery of the cup (zone 5) in the BMSC-treated group (71.97 +/- 10.91%) when compared with control (23.85 +/- 15.13%, p = 0.028). Bone-implant contact was significantly greater in the BMSC-treated group (20.03 +/- 4.64%) (control: 13.71 +/- 8.32%, p = 0.027); correspondingly, the average thickness of the fibrous tissue membrane where present was significantly reduced at the periphery of the cups in the BMSC-treated group (327.49 +/- 20.38 mum) when compared with control (887.21 +/- 158.89 mum) (p = 0.02). This study has clinical applications as greater bone contact at the cup surface will improve fixation and may decrease longer-term aseptic loosening by preventing wear debris-induced bone loss at the implant interface.
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Affiliation(s)
- Priya Kalia
- Division of Surgery and Interventional Science, Centre for Biomedical Engineering, Institute of Orthopaedics and Musculoskeletal Science, Royal National Orthopaedic Hospital, University College London, Middlesex, United Kingdom
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Kim WB, Kim SG, Lim SC, Kim YK, Park SN. Effect of Tisseel on bone healing with particulate dentin and plaster of Paris mixture. ORAL SURGERY, ORAL MEDICINE, ORAL PATHOLOGY, ORAL RADIOLOGY, AND ENDODONTICS 2010; 109:e34-40. [PMID: 20031455 DOI: 10.1016/j.tripleo.2009.09.004] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/10/2008] [Revised: 08/21/2009] [Accepted: 09/08/2009] [Indexed: 02/07/2023]
Abstract
OBJECTIVES The purpose of this study was to evaluate the effect of Tisseel on the early healing of bone defects in the skulls of rats. STUDY DESIGN Forty-eight rats were randomly assigned to 4 groups, and each group was further divided into 3 subgroups which were examined at 4 and 8 weeks after the defects were filled. The 4 different groups were animals containing: no graft (group 1); particulate dentin and plaster of Paris mixture graft (group 2); Tisseel and particulate dentin and plaster of Paris mixture graft (group 3); and Tisseel graft (group 4). After killing the animals at 4 and 8 weeks after surgery, all implant blocks were prepared for histologic sections and histomorphometric analysis. RESULTS The overall new bone formation was significantly different between the 4-week samples and the 8-week samples. Significant differences between groups 1 and 2, groups 1 and 3, groups 1 and 4, groups 2 and 4, and groups 3 and 4 were observed at 4 weeks after surgery. At 8 weeks after surgery, significant differences between groups 1 and 2, groups 1 and 3, groups 1 and 4, and groups 2 and 4 were observed. As expected, effective bone formation was observed when the defects were filled with either particulate dentin, Tisseel, or particulate dentin-Tisseel combination. It was also observed from this study that particulate dentin is especially effective, followed by the particulate dentin-Tisseel combination and Tisseel. CONCLUSION It was concluded that the use of Tisseel may be an alternative therapy for regenerating bone in defects when used in combination with particulate dentin.
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Affiliation(s)
- Wan-Bae Kim
- Department of Oral and Maxillofacial Surgery, College of Dentistry, Chosun University, Gwangju, Korea
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Roriz VM, Rosa AL, Peitl O, Zanotto ED, Panzeri H, de Oliveira PT. Efficacy of a bioactive glass-ceramic (Biosilicate) in the maintenance of alveolar ridges and in osseointegration of titanium implants. Clin Oral Implants Res 2009; 21:148-55. [PMID: 19912271 DOI: 10.1111/j.1600-0501.2009.01812.x] [Citation(s) in RCA: 42] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
OBJECTIVES The aims of this research were to evaluate the efficacy of a bioactive glass-ceramic (Biosilicate) and a bioactive glass (Biogran) placed in dental sockets in the maintenance of alveolar ridge and in the osseointegration of Ti implants. MATERIAL AND METHODS Six dogs had their low premolars extracted and the sockets were implanted with Biosilicate, Biogran particles, or left untreated. After the extractions, measurements of width and height on the alveolar ridge were taken. After 12 weeks a new surgery was performed to take the final ridge measurements and to insert bilaterally three Ti implants in biomaterial-implanted and control sites. Eight weeks post-Ti implant placement block biopsies were processed for histological and histomorphometric analysis. The percentages of bone-implant contact (BIC), of mineralized bone area between threads (BABT), and of mineralized bone area within the mirror area (BAMA) were determined. RESULTS The presence of Biosilicate or Biogran particles preserved alveolar ridge height without affecting its width. No significant differences in terms of BIC, BAMA, and BABT values were detected among Biosilicate, Biogran, and the non-implanted group. CONCLUSIONS The results of the present study indicate that filling of sockets with either Biosilicate or Biogran particles preserves alveolar bone ridge height and allows osseointegration of Ti implants.
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Affiliation(s)
- Virgílio M Roriz
- Faculty of Dentistry of Ribeirão Preto, University of São Paulo, Ribeirão Preto, SP, Brazil
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Carmagnola D, Abati S, Celestino S, Chiapasco M, Bosshardt D, Lang NP. Oral implants placed in bone defects treated with Bio-Oss®, Ostim®-Paste or PerioGlas: an experimental study in the rabbit tibiae. Clin Oral Implants Res 2008; 19:1246-53. [DOI: 10.1111/j.1600-0501.2008.01584.x] [Citation(s) in RCA: 39] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Hallman M, Thor A. Bone substitutes and growth factors as an alternative/complement to autogenous bone for grafting in implant dentistry. Periodontol 2000 2008; 47:172-92. [PMID: 18412581 DOI: 10.1111/j.1600-0757.2008.00251.x] [Citation(s) in RCA: 133] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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Bannister SR, Powell CA. Foreign Body Reaction to Anorganic Bovine Bone and Autogenous Bone With Platelet-Rich Plasma in Guided Bone Regeneration. J Periodontol 2008; 79:1116-20. [DOI: 10.1902/jop.2008.060475] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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Abstract
The resorption of bone following extraction may present a significant problem in implant and restorative dentistry. Ridge preservation is a technique whereby the amount of bone loss is limited. This paper discusses the scientific literature examining the healing post-extraction and ridge preserving techniques, primarily from the perspective of implant dentistry. Some indications for ridge preservation and methods considered appropriate are discussed.
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Affiliation(s)
- I Darby
- School of Dental Science, The University of Melbourne, Parkville, Victoria.
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Iezzi G, Scarano A, Mangano C, Cirotti B, Piattelli A. Histologic Results From a Human Implant Retrieved Due to Fracture 5 Years After Insertion in a Sinus Augmented With Anorganic Bovine Bone. J Periodontol 2008; 79:192-8. [DOI: 10.1902/jop.2008.070105] [Citation(s) in RCA: 44] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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Strietzel FP, Reichart PA, Graf HL. Lateral alveolar ridge augmentation using a synthetic nano-crystalline hydroxyapatite bone substitution material (Ostim®). Preliminary clinical and histological results. Clin Oral Implants Res 2007; 18:743-51. [PMID: 17888015 DOI: 10.1111/j.1600-0501.2007.01416.x] [Citation(s) in RCA: 50] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
OBJECTIVES The purpose of this preliminary two-center clinical prospective study was to evaluate the tissue composition of augmented sites after the use of a nano-crystalline hydroxyapatite (ncHA) bone substitution material by clinical and histological examinations. MATERIAL AND METHODS A synthetic ncHA augmentation material was used without any additives in 14 patients requiring lateral ridge augmentation 6-7 months before (10 patients) or at implant placement (four patients). The ncHA material was covered by a titanium mesh for space maintenance. Clinical and radiographic parameters were evaluated and bone biopsy cores, obtained 6-7 months following augmentation, were assessed histologically and histomorphometrically. RESULTS One patient showed gingival swelling, redness and pain at the augmentation site requiring removal of the titanium mesh 6 weeks postoperatively. In seven patients, a premature exposure of the titanium mesh without any inflammatory symptoms was noted. The width of the fixed gingival and the alveolar ridge height did not change significantly at least 6 months following augmentation (P>0.5), whereas a significant gain in alveolar ridge width (P=0.01) was noted. After a median period of prosthetic loading of 24 months, no implant was considered to be a failure. Histology revealed ncHA remnants in peripheral and central parts of biopsy cores obtained from seven patients after at least 6 months without histological symptoms of inflammation, whereas histomorphometry of bone cores revealed no significant differences of the mean percentage area of ncHA in peripheral (23.4%) and central (15.1%) parts of biopsy cores (P=0.262). The mean percentage area of bone colonizing the defect was 52.3%. CONCLUSIONS Small amounts of ncHA were found after at least 6 months in bone biopsies. The former defect space was filled with bone. The alveolar ridge width gain was found to be significant after lateral augmentation utilizing ncHA, providing a quantitatively and qualitatively sufficient site for primary stable implant placement.
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Affiliation(s)
- Frank Peter Strietzel
- Department for Oral Surgery and Dental Radiology, Campus Virchow Clinic Charité Centre 3 for Dental Medicine, Charité- Medical University Berlin, Berlin, Germany.
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