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Silva WPPD, Santos JMFE, Souza MCD, Barbosa S, Santos AMDS, Ervolino E, Bassi APF, Sukotjo C, Faverani LP. Ozone therapy improves early stages of osseointegration in ovariectomized rats. J Appl Oral Sci 2024; 32:e20230172. [PMID: 38536992 PMCID: PMC11018298 DOI: 10.1590/1678-7757-2023-0172] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2023] [Accepted: 01/24/2024] [Indexed: 04/17/2024] Open
Abstract
OBJECTIVE the aim of this study was to analyze the influence of ozone therapy (OZN) on peri-implant bone repair in critical bones by installing osseointegrated implants in the tibia of ovariectomized rats. METHODOLOGY ovariectomy was performed on 30 Wistar rats, aged six months (Rattus novergicus), and, after 90 days, osseointegrated implants were installed in each tibial metaphysis. The study groups were divided into the animals that received intraperitoneal ozone at a concentration of 700 mcg/kg - OZ Group (n=15) - and a control group that received an intraperitoneal saline solution and, for this reason, was named the SAL group (n=15). The applications for both groups occurred during the immediate post-operative period on the 2nd, 4th, 6th, 8th, 10th, and 12th day post-surgery. At various stages (14, 42, and 60 days), the animals were euthanized, and tests were performed on their tibiae. These tests include histomorphometric and immunohistochemical analyses, computerized microtomography, sampling in light-cured resin for calcified sections, and confocal microscopy. The obtained data were then analyzed using One-way ANOVA and the Shapiro-Wilk, Kruskal-Wallis, and student t-tests (P<0.05). RESULTS our findings indicate that the OZ group (3.26±0.20 mm) showed better cellular organization and bone neoformation at 14 days (SAL group, 0.90±1.42 mm) (P=0.001). Immunohistochemistry revealed that osteocalcin labeling was moderate in the OZ group and mild in the SAL group at 14 and 42 days post-surgery. The data from the analysis of calcified tissues (microtomography, histometric, and bone dynamism analysis) at 60 days showed no statistically significant differences between the groups (P=0.32). CONCLUSION it was concluded that ozone therapy anticipated the initial phases of the peri-implant bone repair process.
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Affiliation(s)
- William Phillip Pereira da Silva
- Universidade Estadual Paulista "Júlio de Mesquita Filho" (UNESP), Faculdade de Odontologia de Araçatuba, Departamento de Diagnóstico e Cirurgia, Araçatuba, Brasil
| | - João Matheus Fonseca E Santos
- Universidade Estadual Paulista "Júlio de Mesquita Filho" (UNESP), Faculdade de Odontologia de Araçatuba, Departamento de Diagnóstico e Cirurgia, Araçatuba, Brasil
| | - Mônica Caroline de Souza
- Universidade Estadual Paulista "Júlio de Mesquita Filho" (UNESP), Faculdade de Odontologia de Araçatuba, Departamento de Diagnóstico e Cirurgia, Araçatuba, Brasil
| | - Stéfany Barbosa
- Universidade Estadual Paulista "Júlio de Mesquita Filho" (UNESP), Faculdade de Odontologia de Araçatuba, Departamento de Diagnóstico e Cirurgia, Araçatuba, Brasil
| | - Anderson Maikon de Souza Santos
- Universidade Estadual Paulista "Júlio de Mesquita Filho" (UNESP), Faculdade de Odontologia de Araçatuba, Departamento de Diagnóstico e Cirurgia, Araçatuba, Brasil
| | - Edilson Ervolino
- Universidade Estadual Paulista "Júlio de Mesquita Filho" (UNESP), Faculdade de Odontologia de Araçatuba, Departamento de Ciências Básicas, Araçatuba, Brasil
| | - Ana Paula Farnezi Bassi
- Universidade Estadual Paulista "Júlio de Mesquita Filho" (UNESP), Faculdade de Odontologia de Araçatuba, Departamento de Diagnóstico e Cirurgia, Araçatuba, Brasil
| | - Cortino Sukotjo
- University of Illinois, College of Dentistry, Department of Restorative Dentistry, Chicago, USA
| | - Leonardo P Faverani
- Universidade Estadual Paulista "Júlio de Mesquita Filho" (UNESP), Faculdade de Odontologia de Araçatuba, Departamento de Diagnóstico e Cirurgia, Araçatuba, Brasil
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Inoue BKN, Paludetto LV, Monteiro NG, Batista FRDS, Kitagawa IL, da Silva RS, Antoniali C, Lisboa Filho PN, Okamoto R. Synergic Action of Systemic Risedronate and Local Rutherpy in Peri-implantar Repair of Ovariectomized Rats: Biomechanical and Molecular Analysis. Int J Mol Sci 2023; 24:16153. [PMID: 38003342 PMCID: PMC10671386 DOI: 10.3390/ijms242216153] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2023] [Revised: 11/03/2023] [Accepted: 11/07/2023] [Indexed: 11/26/2023] Open
Abstract
Postmenopausal osteoporosis and poor dietary habits can lead to overweightness and obesity. Bisphosphonates are the first-line treatment for osteoporosis. However, some studies show that they may increase the risk of osteonecrosis of the jaw. Considering the antimicrobial, angiogenic and vasodilatory potential of nitric oxide, this study aims to evaluate the local activity of this substance during the placement of surface-treated implants. Seventy-two Wistar rats were divided into three groups: SHAM (SHAM surgery), OVX + HD (ovariectomy + cafeteria diet), and OVX + HD + RIS (ovariectomy + cafeteria diet + sodium risedronate treatment), which were further subdivided according to the surface treatment of the future implant: CONV (conventional), TE10, or TE100 (TERPY at 10 or 100 μM concentration); n = 8 per subgroup. The animals underwent surgery for implant installation in the proximal tibia metaphysis and were euthanized after 28 days. Data obtained from removal torque and RT-PCR (OPG, RANKL, ALP, IBSP and VEGF expression) were subjected to statistical analysis at 5% significance level. For biomechanical analysis, TE10 produced better results in the OVX + HD group (7.4 N/cm, SD = 0.6819). Molecular analysis showed: (1) significant increase in OPG gene expression in OVX groups with TE10; (2) decreased RANKL expression in OVX + HD + RIS compared to OVX + HD; (3) significantly increased expressions of IBSP and VEGF for OVX + HD + RIS TE10. At its lowest concentration, TERPY has the potential to improve peri-implant conditions.
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Affiliation(s)
- Bruna Kaori Namba Inoue
- Department of Basic Sciences, Araçatuba Dental School, São Paulo State University Júlio de Mesquita Filho—UNESP, Aracatuba 16015-050, SP, Brazil; (B.K.N.I.); (L.V.P.); (N.G.M.); (F.R.d.S.B.); (C.A.)
| | - Laura Vidoto Paludetto
- Department of Basic Sciences, Araçatuba Dental School, São Paulo State University Júlio de Mesquita Filho—UNESP, Aracatuba 16015-050, SP, Brazil; (B.K.N.I.); (L.V.P.); (N.G.M.); (F.R.d.S.B.); (C.A.)
| | - Naara Gabriela Monteiro
- Department of Basic Sciences, Araçatuba Dental School, São Paulo State University Júlio de Mesquita Filho—UNESP, Aracatuba 16015-050, SP, Brazil; (B.K.N.I.); (L.V.P.); (N.G.M.); (F.R.d.S.B.); (C.A.)
| | - Fábio Roberto de Souza Batista
- Department of Basic Sciences, Araçatuba Dental School, São Paulo State University Júlio de Mesquita Filho—UNESP, Aracatuba 16015-050, SP, Brazil; (B.K.N.I.); (L.V.P.); (N.G.M.); (F.R.d.S.B.); (C.A.)
| | - Igor Lebedenco Kitagawa
- Federal Institute of Education, Science and Technology of São Paulo (IFSP), Birigui 16201-407, SP, Brazil;
| | - Roberto Santana da Silva
- Department of Biomolecular Sciences, Faculty of Pharmaceutical Sciences of Ribeirão Preto, University of São Paulo—USP, Ribeirão Preto 14040-403, SP, Brazil;
| | - Cristina Antoniali
- Department of Basic Sciences, Araçatuba Dental School, São Paulo State University Júlio de Mesquita Filho—UNESP, Aracatuba 16015-050, SP, Brazil; (B.K.N.I.); (L.V.P.); (N.G.M.); (F.R.d.S.B.); (C.A.)
| | - Paulo Noronha Lisboa Filho
- Department of Physics and Meteorology, Bauru Sciences School, São Paulo State University Júlio de Mesquita Filho—UNESP, Bauru 17033-360, SP, Brazil;
| | - Roberta Okamoto
- Department of Basic Sciences, Araçatuba Dental School, São Paulo State University Júlio de Mesquita Filho—UNESP, Aracatuba 16015-050, SP, Brazil; (B.K.N.I.); (L.V.P.); (N.G.M.); (F.R.d.S.B.); (C.A.)
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Song YW, Park JY, Kwon YH, Jang WE, Kim SJ, Seo JT, Moon SJ, Jung UW. Host modulation therapy for improving the osseointegration of dental implants under bone healing-suppressed conditions: a preclinical rodent-model experiment. J Periodontal Implant Sci 2023; 53:53.e47. [PMID: 37857517 DOI: 10.5051/jpis.2301800090] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2023] [Revised: 06/27/2023] [Accepted: 07/26/2023] [Indexed: 10/21/2023] Open
Abstract
PURPOSE Placing dental implants in areas with low bone density or in conditions where bone healing is suppressed is challenging for clinicians. An experiment using a rodent model was performed with the aim of determining the efficacy of host modulation by increasing the systemic level of cholesterol sulfate (CS) using Irosustat in the context of the bone healing process around dental implants. METHODS In 16 ovariectomised female Sprague-Dawley rats, 2 implant fixtures were placed in the tibial bones (1 fixture on each side). At 1 week after surgery, the high-CS group (n=8) received Irosustat-mixed feed, while the control group (n=8) was fed conventionally. Block specimens were obtained at 5 weeks post-surgery for histologic analysis and the data were evaluated statistically (P<0.05). RESULTS Unlike the high-CS group, half of the specimens in the control group demonstrated severe bone resorption along with a periosteal reaction in the cortex. The mean percentages of bone-to-implant contact (21.5%) and bone density (28.1%) near the implant surface were significantly higher in the high-CS group than in the control group (P<0.05), as was the number of Haversian canals (by 5.3). CONCLUSIONS Host modulation by increasing the CS level may enhance the osseointegration of dental implants placed under conditions of impaired bone healing.
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Affiliation(s)
- Young Woo Song
- Department of Periodontology, Gangnam Severance Hospital, Yonsei University College of Dentistry, Seoul, Korea
- Department of Periodontology, Research Institute for Periodontal Regeneration, Yonsei University College of Dentistry, Seoul, Korea
| | - Jin-Young Park
- Department of Periodontology, Research Institute for Periodontal Regeneration, Yonsei University College of Dentistry, Seoul, Korea
- Innovation Research and Support Center for Dental Science, Yonsei University Dental Hospital, Seoul, Korea
| | - Yoon-Hee Kwon
- Department of Periodontology, Research Institute for Periodontal Regeneration, Yonsei University College of Dentistry, Seoul, Korea
- Innovation Research and Support Center for Dental Science, Yonsei University Dental Hospital, Seoul, Korea
| | - Wooyoung Eric Jang
- Department of Oral Biology, BK21 PLUS Project, Yonsei University College of Dentistry, Seoul, Korea
| | - Sung-Jin Kim
- Department of Oral Histology and Developmental Biology, School of Dentistry and Dental Research Institute, Seoul National University, Seoul, Korea
| | - Jeong Taeg Seo
- Department of Oral Biology, BK21 PLUS Project, Yonsei University College of Dentistry, Seoul, Korea
| | - Seok Jun Moon
- Department of Oral Biology, BK21 PLUS Project, Yonsei University College of Dentistry, Seoul, Korea
| | - Ui-Won Jung
- Department of Periodontology, Research Institute for Periodontal Regeneration, Yonsei University College of Dentistry, Seoul, Korea
- Innovation Research and Support Center for Dental Science, Yonsei University Dental Hospital, Seoul, Korea.
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de Souza Santos AM, dos Santos Pereira R, Montemezzi P, Mello-Machado RC, Okamoto R, Sacco R, Noronha Lisboa-Filho P, Messora MR, Mourão CF, Hochuli-Vieira E. The Interplay of Raloxifene and Sonochemical Bio-Oss in Early Maxillary Sinus Bone Regeneration: A Histological and Immunohistochemical Analysis in Rabbits. MEDICINA (KAUNAS, LITHUANIA) 2023; 59:1521. [PMID: 37763640 PMCID: PMC10534759 DOI: 10.3390/medicina59091521] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/21/2023] [Revised: 08/17/2023] [Accepted: 08/21/2023] [Indexed: 09/29/2023]
Abstract
The study aimed to assess the efficacy of using Raloxifene with ultrasonic processing to enhance Bio-Oss®, a bone graft substitute, for maxillary sinus bone height reconstruction. A total of 24 rabbit maxillary sinuses were distributed into three groups, each receiving different treatments: Bio-Oss® only, sonicated Bio-Oss, and sonicated Bio-Oss® with Raloxifene. Surgical procedures and subsequent histomorphometric and immunohistochemistry analyses were conducted to evaluate the bone formation, connective tissue, and remaining biomaterial, as well as the osteoblastic differentiation and maturation of collagen fibers. Results indicated that the sonicated Bio-Oss® and Bio-Oss® groups showed similar histological behavior and bone formation, but the Raloxifene group displayed inflammatory infiltrate, low bone formation, and disorganized connective tissue. The statistical analysis confirmed significant differences between the groups in terms of bone formation, connective tissue, and remaining biomaterial. In conclusion, the study found that while sonicated Bio-Oss® performed comparably to Bio-Oss® alone, the addition of Raloxifene led to an unexpected delay in bone repair. The findings stress the importance of histological evaluation for accurate bone repair assessment and the necessity for further investigation into the local application of Raloxifene. Future research may focus on optimizing bone substitutes with growth factors to improve bone repair.
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Affiliation(s)
- Anderson Maikon de Souza Santos
- Department of Diagnostic and Surgery, Araçatuba School of Dentistry, Sao Paulo State University, Sao Paulo 16066-840, Brazil
| | - Rodrigo dos Santos Pereira
- Department of Oral & Maxillofacial Surgery, University of Grande Rio—UNIGRANRIO, Rio de Janeiro 25071-202, Brazil
| | | | | | - Roberta Okamoto
- Department of Basic Sciences, Araçatuba School of Dentistry, Sao Paulo State University, Sao Paulo 16066-805, Brazil
| | - Roberto Sacco
- Department of Oral Surgery, Division of Dentistry, School of Medical Science, The University of Manchester, Manchester M13 9PL, UK
| | | | - Michel Reis Messora
- Department of Oral and Maxillofacial Surgery and Periodontology, School of Dentistry of Ribeirao Preto, University of Sao Paulo, Ribeirao Preto 14040-904, Brazil
| | - Carlos Fernando Mourão
- Department of Periodontology, Tufts University School of Dental Medicine, Boston, MA 02111, USA
| | - Eduardo Hochuli-Vieira
- Department of Diagnostic and Surgery, Araraquara School of Dentistry, Sao Paulo State University, Sao Paulo 14801-385, Brazil
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Júnior JAG, Nóbrega F, Oliveira PG, Bergamo ET, Cadore U, Gomes MZDV, Kjellin P, Chaushu L, Bezerra F, Ghiraldini B, Scombatti de Souza S. Evaluation of Implant Surface Modification with Nanohydroxyapatite Associated with the Use of L-PRF: In Vivo Study in Rats. J Funct Biomater 2023; 14:370. [PMID: 37504865 PMCID: PMC10381410 DOI: 10.3390/jfb14070370] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2023] [Revised: 05/17/2023] [Accepted: 07/10/2023] [Indexed: 07/29/2023] Open
Abstract
Leukocyte-platelet-rich fibrin (L-PRF) contains growth factors that stimulate bone regeneration. This study evaluated the bone repair in a tibia rat model around two implant surfaces in combination or not with L-PRF by assessing microtomographic and histomorphometric parameters. A total of 48 female rats were used in the study, in which 24 received implants with two types of surface treatments (dual acid etched-DAE or nanohydroxyapatite-nanoHA), and the other 24 received the same mini implants with L-PRF, which was collected by cardiac puncture, centrifugated, and inserted in the bone bed. The animals were euthanized 7 and 30 days after implant placement, and the retrieved samples were prepared for microtomographic and histomorphometric (bone-to-implant contact-BIC; and Bone Area Fraction Occupancy-BAFO) analyses. The adhesion of the nanoHA surface onto the implant surface was investigated by insertion and removal in simulated bone medium (Sawbones). The adhesion evaluation revealed that the loss of nanoHA after this procedure (as measured with SEM) from the implant surface was less than 1%. Overall, the nanoHA surface presented more bone in contact and in proximity to the implant, a higher bone surface/tissue volume fraction, a higher number of bone trabeculae, as well as trabecular separation relative to the DAE surface. Such results were more evident when the nanoHA surface was combined with L-PRF and after 30 days in vivo. The nanoHA surface presented higher BAFO when compared to DAE, with or without association with L-PRF. Therefore, implants with a nanoHA surface potentially benefit from the association to L-PRF.
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Affiliation(s)
- José Augusto Gabarra Júnior
- Department of Oral and Maxillofacial Surgery and Periodontology, School of Dentistry of Ribeirão Preto, University of Sao Paulo, Ribeirão Preto 14040-904, SP, Brazil
| | - Fernando Nóbrega
- Department of Oral and Maxillofacial Surgery and Periodontology, School of Dentistry of Ribeirão Preto, University of Sao Paulo, Ribeirão Preto 14040-904, SP, Brazil
| | - Paula Gabriela Oliveira
- Department of Periodontology, School of Dentistry, University Center of State of Para, Belem 66060-575, PA, Brazil
| | - Edmara Tatiely Bergamo
- Department of Periodontology and Prosthodontics, Bauru School of Dentistry, University of Sao Paulo, Bauru 17012-901, SP, Brazil
| | - Uislen Cadore
- Department of Oral and Maxillofacial Surgery and Periodontology, School of Dentistry of Ribeirão Preto, University of Sao Paulo, Ribeirão Preto 14040-904, SP, Brazil
| | | | - Per Kjellin
- Promimic AB, AstraZeneca BioventureHub, 481 83 Mölndal, Sweden
| | - Liat Chaushu
- Department of Periodontology and Implant Dentistry, School of Dentistry, Tel Aviv University, Tel Aviv 6997801, Israel
| | - Fabio Bezerra
- Department of Oral and Maxillofacial Surgery and Periodontology, School of Dentistry of Ribeirão Preto, University of Sao Paulo, Ribeirão Preto 14040-904, SP, Brazil
| | - Bruna Ghiraldini
- Department of Oral and Maxillofacial Surgery and Periodontology, School of Dentistry of Ribeirão Preto, University of Sao Paulo, Ribeirão Preto 14040-904, SP, Brazil
| | - Sergio Scombatti de Souza
- Department of Oral and Maxillofacial Surgery and Periodontology, School of Dentistry of Ribeirão Preto, University of Sao Paulo, Ribeirão Preto 14040-904, SP, Brazil
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DA Silva WPP, Delanora LA, Rios BR, Barbosa S, Simon MEDS, Sukotjo C, Faverani LP. Feasible low bone density condition for assessing bioactivity in ex-in vivo and in vivo studies. J Appl Oral Sci 2023; 31:e20220411. [PMID: 37436279 DOI: 10.1590/1678-7757-2022-0411] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2022] [Accepted: 03/29/2023] [Indexed: 07/13/2023] Open
Abstract
OBJECTIVE To choose a critical animal model for assessments of bone repair with implant installation by comparing senile rats (SENIL) to young ovariectomized rats (OXV). METHODOLOGY For the ex-in vivo study, the femurs were precursors for bone marrow mesenchymal stem cells. Cellular responses were performed, including cell viability, gene expression of osteoblastic markers, bone sialoprotein immunolocalization, alkaline phosphatase activity, and mineralized matrix formation. For the in vivo study, the animals received implants in the region of the bilateral tibial metaphysis for histometric, microtomography, reverse torque, and confocal microscopy. RESULTS Cell viability showed that the SENIL group had lower growth than OVX. Gene expression showed more critical responses for the SENIL group (p<0.05). The alkaline phosphatase activity obtained a lower expression in the SENIL group, as for the mineralization nodules (p<0.05). The in vivo histological parameters and biomechanical analysis showed lower data for the SENIL group. The confocal microscopy indicated the presence of a fragile bone in the SENIL group. The microtomography was similar between the groups. The histometry of the SENIL group showed the lowest values (p<0.05). CONCLUSION In experimental studies with assessments of bone repair using implant installation, the senile model promotes the most critical bone condition, allowing a better investigation of the properties of biomaterials and topographic changes.
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Affiliation(s)
- William Phillip Pereira DA Silva
- Universidade Estadual Paulista (UNESP), Faculdade de Odontologia de Araçatuba, Departamento de Diagnóstico e Cirurgia, São Paulo, Brasil
| | - Leonardo Alan Delanora
- Universidade Estadual Paulista (UNESP), Faculdade de Odontologia de Araçatuba, Departamento de Diagnóstico e Cirurgia, São Paulo, Brasil
| | - Barbara Ribeiro Rios
- Universidade Estadual Paulista (UNESP), Faculdade de Odontologia de Araçatuba, Departamento de Diagnóstico e Cirurgia, São Paulo, Brasil
| | - Stéfany Barbosa
- Universidade Estadual Paulista (UNESP), Faculdade de Odontologia de Araçatuba, Departamento de Diagnóstico e Cirurgia, São Paulo, Brasil
| | - Maria Eloise de Sá Simon
- Universidade Estadual Paulista (UNESP), Faculdade de Odontologia de Araçatuba, Departamento de Diagnóstico e Cirurgia, São Paulo, Brasil
| | - Cortino Sukotjo
- University of Illinois at Chicago, College of Dentistry, Department of Restorative Dentistry, Chicago, Illinois, United States
| | - Leonardo P Faverani
- Universidade Estadual Paulista (UNESP), Faculdade de Odontologia de Araçatuba, Departamento de Diagnóstico e Cirurgia, São Paulo, Brasil
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Putri A, Pramanik F, Azhari A. Micro Computed Tomography and Immunohistochemistry Analysis of Dental Implant Osseointegration in Animal Experimental Model: A Scoping Review. Eur J Dent 2023; 17:623-628. [PMID: 36977479 PMCID: PMC10569876 DOI: 10.1055/s-0042-1757468] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/30/2023] Open
Abstract
Osseointegration is a complex process that involves the interaction of dental implants, bone, and the immune system. Preclinical testing was carried out to develop a better understanding of the mechanism. Micro-computed tomography (micro-CT) imaging techniques and immunohistochemistry are excellent tools for this objective as both enable quantitative assessment of bone microarchitecture and intercellular interaction. An extensive literature search was conducted using the databases PubMed, Science Direct, Wiley Online, Proquest and Ebscohost from January 2011 to January 2021. Among the publications retrieved, the rat model was the most frequently used experimental protocol, with the tibia being the most frequently implanted site. The region of interest demonstrates a high degree of homogeneity as measured by trabecula but varies in size and shape. The most frequently mentioned micro-CT bone parameter and immunohistochemistry bone markers were bone volume per total volume (BV/TV) and runt-related transcription factors (RUNX). Animal models, micro-CT analysis methods, and immunohistochemistry biomarkers yielded a variety of results in the studies. Understanding bone architecture and the remodeling process will aid in the selection of a viable model for a specific research topic.
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Affiliation(s)
- Annisa Putri
- Dentomaxillofacial Radiology Residency Program, Faculty of Dentistry, Universitas Padjadjaran, Bandung, Indonesia
| | - Farina Pramanik
- Department of Dentomaxillofacial Radiology, Faculty of Dentistry, Universitas Padjadjaran, Bandung, Indonesia
| | - Azhari Azhari
- Department of Dentomaxillofacial Radiology, Faculty of Dentistry, Universitas Padjadjaran, Bandung, Indonesia
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Polo TOB, Fonseca-Santos JM, Momesso GAC, da Silva WPP, Barbosa S, Santos AMDS, Silva MC, Garcia VG, Theodoro LH, Faverani LP. Single intraoperative infrared laser optimized bone repair in rat femoral osteotomies with experimentally induced osteoporosis. Lasers Med Sci 2023; 38:87. [PMID: 36935455 DOI: 10.1007/s10103-023-03746-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2022] [Accepted: 03/06/2023] [Indexed: 03/21/2023]
Abstract
This study aimed to evaluate the effect of infrared laser (IRL) on bone repair in ovariectomized rats subjected to femoral osteotomies. Of 32 rats, half underwent bilateral ovariectomy (OVX) and the other half underwent sham ovariectomy (SHAM). A period of 3 months was defined to observe the presence of osteoporosis. The rats were subjected to osteotomies in the femurs and then fixed with a miniplate and 1.5-mm system screws. Thereafter, half of the rats from both SHAM and OVX groups were not irradiated, and the other half were irradiated by IRL using the following parameters: wavelength, 808 nm; power, 100 mW; 60 s for each point; 6 J/point; and a total of 5 points of bone gap. All animals were euthanized 60 days after surgery. The femur gap was scanned using micro-computed tomography (micro-CT). The samples were then examined under a confocal laser microscope to determine the amounts of calcein and alizarin red. The slides were stained with alizarin red and Stevenel's blue for histometric analysis. In the micro-CT analysis, the OVX groups had the lowest bone volume (P < 0.05). When the laser was applied to the OVX groups, bone turnover increased (P < 0.05). New bone formation (NBF) was comparable between SHAM and OVX/IR (P > 0.05) groups; however, it was less in the OVX groups (P < 0.05). In conclusion, the results encourage the use of IRL intraoperatively as it optimizes bone repair, mainly in animals with low bone mineral density.
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Affiliation(s)
- Tárik Ocon Braga Polo
- School of Dentistry, São Paulo State University (UNESP), Araçatuba, São Paulo, Brazil
| | | | - Gustavo Antonio Correa Momesso
- School of Dentistry, São Paulo State University (UNESP), Araçatuba, São Paulo, Brazil
- Department of Implantology, University of Santo Amaro, Unisa, São Paulo, SP, Brazil
| | | | - Stefany Barbosa
- School of Dentistry, São Paulo State University (UNESP), Araçatuba, São Paulo, Brazil
| | | | - Mirela Caroline Silva
- School of Dentistry, São Paulo State University (UNESP), Araçatuba, São Paulo, Brazil
| | - Valdir Gouveia Garcia
- Diagnosis and Surgery Department, School of Dentistry, São Paulo State University (UNESP), 1193 José Bonifácio Street, Araçatuba, São Paulo, 16015-050, Brazil
| | - Letícia Helena Theodoro
- Diagnosis and Surgery Department, School of Dentistry, São Paulo State University (UNESP), 1193 José Bonifácio Street, Araçatuba, São Paulo, 16015-050, Brazil
| | - Leonardo P Faverani
- Diagnosis and Surgery Department, School of Dentistry, São Paulo State University (UNESP), 1193 José Bonifácio Street, Araçatuba, São Paulo, 16015-050, Brazil.
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Mohammadi A, Dehkordi NR, Mahmoudi S, Rafeie N, Sabri H, Valizadeh M, Poorsoleiman T, Jafari A, Mokhtari A, Khanjarani A, Salimi Y, Mokhtari M, Deravi N. Effects of Drugs and Chemotherapeutic Agents on Dental Implant Osseointegration: Narrative Review. Curr Rev Clin Exp Pharmacol 2022; 19:CRCEP-EPUB-124232. [PMID: 35674294 DOI: 10.2174/2772432817666220607114559] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2022] [Revised: 01/27/2022] [Accepted: 03/03/2022] [Indexed: 11/22/2022]
Abstract
BACKGROUND Dental implants have been one of the most popular treatments for rehabilitating individuals with single missing teeth or fully edentulous jaws since their introduction. As more implant patients are well-aged and take several medications due to various systemic conditions, clinicians should be mindful of possible drug implications on bone remodeling and osseointegration. OBJECTIVE The present study aims to study and review some desirable and some unwelcomed implications of medicine on osseointegration. METHODS A broad search for proper relevant studies were conducted in four databases, including Web of Science, Pubmed, Scopus, and Google Scholar. RESULTS Some commonly prescribed medicines such as nonsteroidal anti-inflammatory drugs (NSAIDs), glucocorticoids, proton pump inhibitors (PPIs), selective serotonin reuptake inhibitors (SSRIs), anticoagulants, metformin, and chemotherapeutic agents may jeopardize osseointegration. On the contrary, some therapeutic agents such as anabolic, anti-catabolic, or dual anabolic and anti-catabolic agents may enhance osseointegration and increase the treatment's success rate. CONCLUSION Systemic medications that enhance osseointegration include mineralization promoters and bone resorption inhibitors. On the other hand, medications often given to the elderly with systemic problems might interfere with osseointegration, leading to implant failure. However, to validate the provided research, more human studies with a higher level of evidence are required.
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Affiliation(s)
- Aida Mohammadi
- Dental Materials Research Center, Tehran Medical Sciences, Islamic Azad University, Tehran, Iran
| | - Nazanin Roqani Dehkordi
- Department of Periodontology, Faculty of Dentistry, Shahid Sadoughi University of Medical Sciences, Yazd, Iran
| | - Sadaf Mahmoudi
- Department of Endodontics, School of Dentistry, Isfahan (Khorasgan) Branch, Islamic Azad University, Isfahan, Iran
| | - Niyousha Rafeie
- Dental Research Center, Dentistry Research Institute, School of Dentistry, Tehran University of Medical Sciences, Tehran, Iran
| | - Hamoun Sabri
- Research Center, School of Dentistry, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Maryam Valizadeh
- Student Research Committee, Faculty of Dentistry, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Taniya Poorsoleiman
- Student Research Committee, Qazvin University of Medical Sciences, Qazvin, Iran
| | - Aryan Jafari
- Dental Materials Research Center, Tehran Medical Sciences, Islamic Azad University, Tehran, Iran
| | - Alireza Mokhtari
- Student Research Committee, Dental Faculty, Tehran Medical Sciences, Islamic Azad University, Tehran, Iran
| | - Arshia Khanjarani
- Student Research Committee, Dental Faculty, Tehran Medical Sciences, Islamic Azad University, Tehran, Iran
| | - Yasaman Salimi
- Student Research Committee, Kermanshah University of Medical Sciences, Kermanshah, Iran
| | - Melika Mokhtari
- Student Research Committee, Dental Faculty, Tehran Medical Sciences, Islamic Azad University, Tehran, Iran
| | - Niloofar Deravi
- Student Research Committee, School of Medicine, Shahid Beheshti University of Medical sciences, Tehran, Iran
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10
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Blanc-Sylvestre N, Bouchard P, Chaussain C, Bardet C. Pre-Clinical Models in Implant Dentistry: Past, Present, Future. Biomedicines 2021; 9:1538. [PMID: 34829765 PMCID: PMC8615291 DOI: 10.3390/biomedicines9111538] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2021] [Revised: 10/11/2021] [Accepted: 10/15/2021] [Indexed: 12/23/2022] Open
Abstract
Biomedical research seeks to generate experimental results for translation to clinical settings. In order to improve the transition from bench to bedside, researchers must draw justifiable conclusions based on data from an appropriate model. Animal testing, as a prerequisite to human clinical exposure, is performed in a range of species, from laboratory mice to larger animals (such as dogs or non-human primates). Minipigs appear to be the animal of choice for studying bone surgery around intraoral dental implants. Dog models, well-known in the field of dental implant research, tend now to be used for studies conducted under compromised oral conditions (biofilm). Regarding small animal models, research studies mostly use rodents, with interest in rabbit models declining. Mouse models remain a reference for genetic studies. On the other hand, over the last decade, scientific advances and government guidelines have led to the replacement, reduction, and refinement of the use of all animal models in dental implant research. In new development strategies, some in vivo experiments are being progressively replaced by in vitro or biomaterial approaches. In this review, we summarize the key information on the animal models currently available for dental implant research and highlight (i) the pros and cons of each type, (ii) new levels of decisional procedures regarding study objectives, and (iii) the outlook for animal research, discussing possible non-animal options.
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Affiliation(s)
- Nicolas Blanc-Sylvestre
- Université de Paris, Institut des Maladies Musculo-Squelettiques, Orofacial Pathologies, Imaging and Biotherapies Laboratory URP2496 and FHU-DDS-Net, Dental School, and Plateforme d’Imagerie du Vivant (PIV), 92120 Montrouge, France; (N.B.-S.); (P.B.); (C.C.)
- AP-HP, Department of Periodontology, Rothschild Hospital, European Postgraduate in Periodontology and Implantology, Université de Paris, 75012 Paris, France
| | - Philippe Bouchard
- Université de Paris, Institut des Maladies Musculo-Squelettiques, Orofacial Pathologies, Imaging and Biotherapies Laboratory URP2496 and FHU-DDS-Net, Dental School, and Plateforme d’Imagerie du Vivant (PIV), 92120 Montrouge, France; (N.B.-S.); (P.B.); (C.C.)
- AP-HP, Department of Periodontology, Rothschild Hospital, European Postgraduate in Periodontology and Implantology, Université de Paris, 75012 Paris, France
| | - Catherine Chaussain
- Université de Paris, Institut des Maladies Musculo-Squelettiques, Orofacial Pathologies, Imaging and Biotherapies Laboratory URP2496 and FHU-DDS-Net, Dental School, and Plateforme d’Imagerie du Vivant (PIV), 92120 Montrouge, France; (N.B.-S.); (P.B.); (C.C.)
- AP-HP, Reference Center for Rare Disorders of the Calcium and Phosphate Metabolism, Dental Medicine Department, Bretonneau Hospital, GHN-Université de Paris, 75018 Paris, France
| | - Claire Bardet
- Université de Paris, Institut des Maladies Musculo-Squelettiques, Orofacial Pathologies, Imaging and Biotherapies Laboratory URP2496 and FHU-DDS-Net, Dental School, and Plateforme d’Imagerie du Vivant (PIV), 92120 Montrouge, France; (N.B.-S.); (P.B.); (C.C.)
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11
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Polo TOB, Momesso GAC, Silva WPP, Santos AMDS, Fonseca-Santos JM, da Cruz NC, Barão VAR, Garcia VG, Theodoro LH, Faverani LP. Is an anodizing coating associated to the photobiomodulation able to optimize bone healing in ovariectomized animal model? JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY B-BIOLOGY 2021; 217:112167. [PMID: 33667733 DOI: 10.1016/j.jphotobiol.2021.112167] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/10/2020] [Revised: 01/10/2021] [Accepted: 02/23/2021] [Indexed: 10/22/2022]
Abstract
This in vivo study investigated whether the bioactivity of anodizing coating, produced by plasma electrolytic oxidation (PEO), on mini-plate in femur fracture could be improved with the association of photobiomodulation (PBM) therapy. From the 20 ovariectomized Wistar female rats, 8 were used for model characterization, and the remaining 12 were divided into four groups according to the use of PBM therapy by diode laser (808 nm; power: 100 mW; energy: 6.0 J; energy density: 212 J/cm2; power density: 3.5 W/cm2) and the type of mini-plate surface (commercially pure titanium mini-plate -cpTi- and PEO-treated mini-plate) as follow: cpTi; PEO; cpTi/PBM; and PEO/PBM. After 60 days of surgery, fracture healing underwent microstructural, bone turnover, histometric, and histologic adjacent muscle analysis. Animals of groups with PEO and PBM showed greater fracture healing than cpTi control group under histometric and microstructural analysis (P < 0.05); however, bone turnover was just improved in PBM's groups (P < 0.05). there was no difference between cpTi and PEO without PBM (P > 0.05). Adjacent muscle analysis showed no metallic particles or muscle alterations in all groups. PEO and PBM are effective strategies for bone repair in fractures, however their association does not provide additional advantages.
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Affiliation(s)
- Tárik Ocon Braga Polo
- Department of Diagnosis and Surgery, Aracatuba School of Dentistry, São Paulo State University (UNESP), Araçatuba, São Paulo, Brazil
| | - Gustavo Antônio Correa Momesso
- Department of Diagnosis and Surgery, Aracatuba School of Dentistry, São Paulo State University (UNESP), Araçatuba, São Paulo, Brazil
| | - William Phillip Pereira Silva
- Department of Diagnosis and Surgery, Aracatuba School of Dentistry, São Paulo State University (UNESP), Araçatuba, São Paulo, Brazil
| | - Anderson Maikon de Souza Santos
- Department of Diagnosis and Surgery, Aracatuba School of Dentistry, São Paulo State University (UNESP), Araçatuba, São Paulo, Brazil
| | - João Matheus Fonseca-Santos
- Department of Diagnosis and Surgery, Aracatuba School of Dentistry, São Paulo State University (UNESP), Araçatuba, São Paulo, Brazil
| | - Nilson Cristino da Cruz
- Technological Plasma Laboratory (LaPTec), Experimental Campus of Sorocaba, São Paulo State University (UNESP), Sorocaba, São Paulo, Brazil
| | - Valentim A R Barão
- Department of Prosthodontics and Periodontology, Piracicaba Dental School, University of Campinas (UNICAMP), Piracicaba, São Paulo, Brazil
| | - Valdir Gouveia Garcia
- Department of Diagnosis and Surgery, Aracatuba School of Dentistry, São Paulo State University (UNESP), Araçatuba, São Paulo, Brazil
| | - Letícia Helena Theodoro
- Department of Diagnosis and Surgery, Aracatuba School of Dentistry, São Paulo State University (UNESP), Araçatuba, São Paulo, Brazil
| | - Leonardo P Faverani
- Department of Diagnosis and Surgery, Aracatuba School of Dentistry, São Paulo State University (UNESP), Araçatuba, São Paulo, Brazil.
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12
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Bassi APF, Bizelli VF, Francatti TM, Rezende de Moares Ferreira AC, Carvalho Pereira J, Al-Sharani HM, de Almeida Lucas F, Faverani LP. Bone Regeneration Assessment of Polycaprolactone Membrane on Critical-Size Defects in Rat Calvaria. MEMBRANES 2021; 11:membranes11020124. [PMID: 33572318 PMCID: PMC7916152 DOI: 10.3390/membranes11020124] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/29/2020] [Revised: 01/30/2021] [Accepted: 02/01/2021] [Indexed: 12/13/2022]
Abstract
Biomaterials for use in guided bone regeneration (GBR) are constantly being investigated and developed to improve clinical outcomes. The present study aimed to comparatively evaluate the biological performance of different membranes during the bone healing process of 8 mm critical defects in rat calvaria in order to assess their influence on the quality of the newly formed bone. Seventy-two adult male rats were divided into three experimental groups (n = 24) based on the membranes used: the CG—membrane-free control group (only blood clot, negative control), BG—porcine collagen membrane group (Bio-Guide®, positive control), and the PCL—polycaprolactone (enriched with 5% hydroxyapatite) membrane group (experimental group). Histological and histometric analyses were performed at 7, 15, 30, and 60 days postoperatively. The quantitative data were analyzed by two-way ANOVA and Tukey’s test (p < 0.05). At 7 and 15 days, the inflammatory responses in the BG and PCL groups were significantly different (p < 0.05). The PCL group, at 15 days, showed a large area of newly formed bone. At 30 and 60 days postoperatively, the PCL and BG groups exhibited similar bone healing, including some specimens showing complete closure of the critical defect (p = 0.799). Thus, the PCL membrane was biocompatible, and has the potential to help with GBR procedures.
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Affiliation(s)
- Ana Paula Farnezi Bassi
- Department of Diagnosis and Surgery, School of Dentistry, São Paulo State University—UNESP, Araçatuba, São Paulo 16015-050, Brazil; (V.F.B.); (T.M.F.); (A.C.R.d.M.F.); (J.C.P.); (L.P.F.)
- Correspondence: ; Tel.: +55-18-36363242
| | - Vinícius Ferreira Bizelli
- Department of Diagnosis and Surgery, School of Dentistry, São Paulo State University—UNESP, Araçatuba, São Paulo 16015-050, Brazil; (V.F.B.); (T.M.F.); (A.C.R.d.M.F.); (J.C.P.); (L.P.F.)
| | - Tamires Mello Francatti
- Department of Diagnosis and Surgery, School of Dentistry, São Paulo State University—UNESP, Araçatuba, São Paulo 16015-050, Brazil; (V.F.B.); (T.M.F.); (A.C.R.d.M.F.); (J.C.P.); (L.P.F.)
| | - Ana Carulina Rezende de Moares Ferreira
- Department of Diagnosis and Surgery, School of Dentistry, São Paulo State University—UNESP, Araçatuba, São Paulo 16015-050, Brazil; (V.F.B.); (T.M.F.); (A.C.R.d.M.F.); (J.C.P.); (L.P.F.)
| | - Járede Carvalho Pereira
- Department of Diagnosis and Surgery, School of Dentistry, São Paulo State University—UNESP, Araçatuba, São Paulo 16015-050, Brazil; (V.F.B.); (T.M.F.); (A.C.R.d.M.F.); (J.C.P.); (L.P.F.)
| | - Hesham Mohammed Al-Sharani
- School of Dentistry, Faculty of Dentistry, Ibb University, Ibb, Yemen;
- Department of Maxillofacial Surgery, School of Stomatology, Harbin Medical University, Harbin 150081, China
| | - Flavia de Almeida Lucas
- Araçatuba Veterinary Medicine School, UNESP—São Paulo State University, Araçatuba, São Paulo 16050-680, Brazil;
| | - Leonardo Perez Faverani
- Department of Diagnosis and Surgery, School of Dentistry, São Paulo State University—UNESP, Araçatuba, São Paulo 16015-050, Brazil; (V.F.B.); (T.M.F.); (A.C.R.d.M.F.); (J.C.P.); (L.P.F.)
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13
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Farnezi Bassi AP, Bizelli VF, Brasil LFDM, Pereira JC, Al-Sharani HM, Momesso GAC, Faverani LP, Lucas FDA. Is the Bacterial Cellulose Membrane Feasible for Osteopromotive Property? MEMBRANES 2020; 10:membranes10090230. [PMID: 32932731 PMCID: PMC7558580 DOI: 10.3390/membranes10090230] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/09/2020] [Revised: 09/03/2020] [Accepted: 09/07/2020] [Indexed: 02/06/2023]
Abstract
Guided bone regeneration was studied to establish protocols and develop new biomaterials that revealed satisfactory results. The present study aimed to comparatively evaluate the efficiency of the bacterial cellulose membrane (Nanoskin®) and collagen membrane Bio-Gide® in the bone repair of 8-mm critical size defects in rat calvaria. Seventy-two adult male rats were divided into three experimental groups (n = 24): the CG—membrane-free control group (only blood clot, negative control), BG—porcine collagen membrane group (Bio-Guide®, positive control), and BC—bacterial cellulose membrane group (experimental group). The comparison periods were 7, 15, 30, and 60 days postoperatively. Histological, histometric, and immunohistochemical analyses were performed. The quantitative data were subjected to 2-way ANOVA and Tukey’s post-test, and p < 0.05 was considered significant. At 30 and 60 days postoperatively, the BG group showed more healing of the surgical wound than the other groups, with a high amount of newly formed bone (p < 0.001), while the BC group showed mature connective tissue filling the defect. The inflammatory cell count at postoperative days 7 and 15 was higher in the BC group than in the BG group (Tukey’s test, p = 0.006). At postoperative days 30 and 60, the area of new bone formed was greater in the BG group than in the other groups (p < 0.001). Immunohistochemical analysis showed moderate and intense immunolabeling of osteocalcin and osteopontin at postoperative day 60 in the BG and BC groups. Thus, despite the promising application of the BC membrane in soft-tissue repair, it did not induce bone repair in rat calvaria.
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Affiliation(s)
- Ana Paula Farnezi Bassi
- Department of Diagnosis and Surgery, São Paulo State University, UNESP, School of Dentistry, Araçatuba, São Paulo 16015-050, Brazil; (V.F.B.); (L.F.d.M.B.); (J.C.P.); (G.A.C.M.); (L.P.F.)
- Correspondence: ; Tel.: +55-18-36363242
| | - Vinícius Ferreira Bizelli
- Department of Diagnosis and Surgery, São Paulo State University, UNESP, School of Dentistry, Araçatuba, São Paulo 16015-050, Brazil; (V.F.B.); (L.F.d.M.B.); (J.C.P.); (G.A.C.M.); (L.P.F.)
| | - Leticia Freitas de Mendes Brasil
- Department of Diagnosis and Surgery, São Paulo State University, UNESP, School of Dentistry, Araçatuba, São Paulo 16015-050, Brazil; (V.F.B.); (L.F.d.M.B.); (J.C.P.); (G.A.C.M.); (L.P.F.)
| | - Járede Carvalho Pereira
- Department of Diagnosis and Surgery, São Paulo State University, UNESP, School of Dentistry, Araçatuba, São Paulo 16015-050, Brazil; (V.F.B.); (L.F.d.M.B.); (J.C.P.); (G.A.C.M.); (L.P.F.)
| | - Hesham Mohammed Al-Sharani
- Department of Oral and Maxillofacial Surgery, College of Dentistry, Ibb University, Ibb 16015-050, Yemen;
| | - Gustavo Antonio Correa Momesso
- Department of Diagnosis and Surgery, São Paulo State University, UNESP, School of Dentistry, Araçatuba, São Paulo 16015-050, Brazil; (V.F.B.); (L.F.d.M.B.); (J.C.P.); (G.A.C.M.); (L.P.F.)
| | - Leonardo P. Faverani
- Department of Diagnosis and Surgery, São Paulo State University, UNESP, School of Dentistry, Araçatuba, São Paulo 16015-050, Brazil; (V.F.B.); (L.F.d.M.B.); (J.C.P.); (G.A.C.M.); (L.P.F.)
| | - Flavia de Almeida Lucas
- Department of Animal Clinic, Surgery and Reproduction, São Paulo State University, UNESP, School of Veterinary Medicine, Araçatuba, São Paulo 16050-698, Brazil;
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14
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Gomes-Ferreira PHS, de Oliveira D, Frigério PB, de Souza Batista FR, Grandfield K, Okamoto R. Teriparatide improves microarchitectural characteristics of peri-implant bone in orchiectomized rats. Osteoporos Int 2020; 31:1807-1815. [PMID: 32383065 DOI: 10.1007/s00198-020-05431-y] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/13/2020] [Accepted: 04/22/2020] [Indexed: 12/16/2022]
Abstract
UNLABELLED This study evaluated the peri-implant bone repair in orchiectomized rats receiving intermittently PTH 1-34. The treatment returned the bone quality and quantity of the animals to normal in the computerized microtomography, laser confocal microscopy, and histological analysis. The PTH 1-34 promoted marked bone formation with increased volume, improved quality, and greater bone turnover. INTRODUCTION Osteoporosis can be a problem in implant osseointegration. So this study aimed to evaluate the quantity and quality of peri-implant bone repair in orchiectomized Wistar rats receiving intermittently administered PTH 1-34. METHODS Animals (n = 24) were divided into 3 groups: healthy control (SHAM), orchiectomized (ORQ), and orchiectomized and treated with 0.5 μg/kg/day PTH 1-34 (TERI), and each received an implant in the right and left tibial metaphysis, which was allowed to repair for 60 days. The resultant bone formation was evaluated through computerized microtomography (micro-CT) to compare the percent bone volume (BV/TV), trabecular thickness (Tb.Th), trabecular number and separation (Tb.N, Tb.Sp), and bone implant contact (BIC) through the intersection surface (i.S) between groups. Laser confocal microscopy was used to evaluate fluorochrome areas for mineral apposition rate (MAR) and neoformed bone area (NBA). In addition, histological evaluation of calcified tissues with Stevenel blue and alizarin red staining was performed. RESULTS Treatment with PTH 1-34 returned the bone quality and quantity of the osteoporotic animal to normal, as the TERI group presented statistically significant higher values for BV/TV, Tb.Th, and BIC parameters compared with ORQ (p < 0.05), but when compared with SHAM (p > 0.05), no statistical difference was noted. In addition, in the bone turnover analysis (MAR, NBA) for TERI, the highest results are presented, followed by SHAM, and then ORQ (TERI × ORQ: p < 0.05). CONCLUSIONS Intermittent treatment with PTH 1-34 on orchiectomized animals promoted marked bone formation with increased volume, improved quality, and greater bone turnover in the peri-implant space, returning the bone quality and quantity to the present standard in healthy animals.
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Affiliation(s)
- P H S Gomes-Ferreira
- Department of Surgery and Integrated Clinic, Araçatuba Dental School, São Paulo State University, Rua José Bonifácio, 1193, Vila Mendonça, Aracatuba, SP, 16015-050, Brazil.
| | - D de Oliveira
- Department of Basic Sciences, Araçatuba Dental School, São Paulo State University, Araçatuba, SP, Brazil
| | - P B Frigério
- Department of Basic Sciences, Araçatuba Dental School, São Paulo State University, Araçatuba, SP, Brazil
| | - F R de Souza Batista
- Department of Surgery and Integrated Clinic, Araçatuba Dental School, São Paulo State University, Rua José Bonifácio, 1193, Vila Mendonça, Aracatuba, SP, 16015-050, Brazil
| | - K Grandfield
- Department of Materials Science and Engineering, McMaster University, Hamilton, ON, Canada
| | - R Okamoto
- Department of Basic Sciences, Araçatuba Dental School, São Paulo State University, Araçatuba, SP, Brazil
- Research Productivity Scholarship (Process: 306389/2017-7), Aracatuba, SP, Brazil
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15
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Polo TOB, Silva WPP, Momesso GAC, Lima-Neto TJ, Barbosa S, Cordeiro JM, Hassumi JS, da Cruz NC, Okamoto R, Barão VAR, Faverani LP. Plasma Electrolytic Oxidation as a Feasible Surface Treatment for Biomedical Applications: an in vivo study. Sci Rep 2020; 10:10000. [PMID: 32561767 PMCID: PMC7305204 DOI: 10.1038/s41598-020-65289-2] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2019] [Accepted: 04/28/2020] [Indexed: 01/04/2023] Open
Abstract
OBJECTIVES In this in vivo animal study, we evaluated the effect of plasma electrolytic oxidation (PEO) coating on the topographic and biological parameters of implants installed in rats with induced osteoporosis and low-quality bones. MATERIALS AND METHODS In total 44 Wistar rats (Rattus novergicus), 6 months old, were submitted to ovariectomy (OXV group) and dummy surgery (SHAM group). After 90 days, the ELISA test was performed and the ovariectomy effectiveness was confirmed. In each tibial metaphysis, an implant with PEO coating containing Ca2+ and P5+ molecules were installed, and the other tibia received an implant with SLA acid etching and blasting (AC) (control surface). After 42 days, 16 rats from each group were euthanized, their tibias were removed for histological and immunohistochemical analysis (OPG, RANKL, OC and TRAP), as well as reverse torque biomechanics. Data were submitted to One-way ANOVA or Kruskal-Wallis tests, followed by a Tukey post-test; P < 0.05. Histological analyses showed higher bone neoformation values among the members of the PEO group, SHAM and OVX groups. Immunohistochemical analysis demonstrated equilibrium in all groups when comparing surfaces for TRAP, OC and RANKL (P > 0.05), whereas OPG showed higher PEO labeling in the OVX group (P < 0.05). Biomechanical analysis showed higher reverse torque values (N.cm) for PEO, irrespective of whether they were OVX or SHAM groups (P < 0.05). CONCLUSION The results indicated that the PEO texturing method favored bone formation and showed higher bone maturation levels during later periods in osteoporotic rats.
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Affiliation(s)
- Tárik Ocon Braga Polo
- Department of Diagnosis and Surgery, Sao Paulo State University - Unesp. School of Dentistry, Rua José Bonifácio, 1193, Araçatuba, ZIP code:, CEP16015-050, Sao Paulo, Brazil
| | - William Phillip Pereira Silva
- Department of Diagnosis and Surgery, Sao Paulo State University - Unesp. School of Dentistry, Rua José Bonifácio, 1193, Araçatuba, ZIP code:, CEP16015-050, Sao Paulo, Brazil
| | - Gustavo Antonio Correa Momesso
- Department of Diagnosis and Surgery, Sao Paulo State University - Unesp. School of Dentistry, Rua José Bonifácio, 1193, Araçatuba, ZIP code:, CEP16015-050, Sao Paulo, Brazil
| | - Tiburtino José Lima-Neto
- Department of Diagnosis and Surgery, Sao Paulo State University - Unesp. School of Dentistry, Rua José Bonifácio, 1193, Araçatuba, ZIP code:, CEP16015-050, Sao Paulo, Brazil
| | - Stéfany Barbosa
- Undergradutate student, Sao Paulo State University - Unesp. School of Dentistry, Rua José Bonifácio, 1193, Araçatuba, ZIP code:, CEP16015-050, Sao Paulo, Brazil
| | - Jairo Matozinho Cordeiro
- University of Campinas (UNICAMP), Piracicaba Dental School, Department of Prosthodontics and Periodontology, Av Limeira, 901, Piracicaba, São Paulo, CEP13414-903, Brazil.,Institute of Biomaterials, Tribocorrosion and Nanomedicine (IBTN), Sao Paulo, Brazil
| | - Jaqueline Suemi Hassumi
- Department of Diagnosis and Surgery, Sao Paulo State University - Unesp. School of Dentistry, Rua José Bonifácio, 1193, Araçatuba, ZIP code:, CEP16015-050, Sao Paulo, Brazil
| | - Nilson Cristino da Cruz
- Technological Plasma Laboratory (LaPTec), Experimental Campus of Sorocaba, Sao Paulo State University-Unesp, Sorocaba, Brazil
| | - Roberta Okamoto
- Department of Basic Sciences, Sao Paulo State University - Unesp. School of Dentistry, Rua José Bonifácio, 1193, Araçatuba, ZIP code:, CEP16015-050, Sao Paulo, Brazil
| | - Valentim A R Barão
- University of Campinas (UNICAMP), Piracicaba Dental School, Department of Prosthodontics and Periodontology, Av Limeira, 901, Piracicaba, São Paulo, CEP13414-903, Brazil.,Institute of Biomaterials, Tribocorrosion and Nanomedicine (IBTN), Sao Paulo, Brazil
| | - Leonardo P Faverani
- Department of Diagnosis and Surgery, Sao Paulo State University - Unesp. School of Dentistry, Rua José Bonifácio, 1193, Araçatuba, ZIP code:, CEP16015-050, Sao Paulo, Brazil.
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Comparison between Plasma Electrolytic Oxidation Coating and Sandblasted Acid-Etched Surface Treatment: Histometric, Tomographic, and Expression Levels of Osteoclastogenic Factors in Osteoporotic Rats. MATERIALS 2020; 13:ma13071604. [PMID: 32244631 PMCID: PMC7178360 DOI: 10.3390/ma13071604] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/08/2020] [Revised: 03/11/2020] [Accepted: 03/13/2020] [Indexed: 02/06/2023]
Abstract
Plasma electrolytic oxidation (PEO) has been a promising surface coating with better mechanical and antimicrobial parameters comparing to conventional treatment surfaces. This study evaluated the peri-implant bone repair using (PEO) surface coatings compared with sandblasted acid (SLA) treatment. For this purpose, 44 Wistar rats were ovariectomized (OVX-22 animals) or underwent simulated surgery (SS-22 animals) and received implants in the tibia with each of the surface coatings. The peri-implant bone subsequently underwent molecular, microstructural, bone turnover, and histometric analysis. Real-time PCR showed a higher expression of osteoprotegerin (OPG), receptor activator of nuclear kappa-B ligand (RANKL), and osteocalcin (OC) proteins in the SLA/OVX and PEO/SS groups (p < 0.05). Computed microtomography, confocal microscopy, and histometry showed similarity between the PEO and SLA surfaces, with a trend toward the superiority of PEO in OVX animals. Thus, PEO surfaces were shown to be promising for enhancing peri-implant bone repair in ovariectomized rats.
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Wang YN, Jia TT, Xu X, Zhang DJ. [Overview of animal researches about the effects of systemic drugs on implant osseointegration]. HUA XI KOU QIANG YI XUE ZA ZHI = HUAXI KOUQIANG YIXUE ZAZHI = WEST CHINA JOURNAL OF STOMATOLOGY 2020; 38:211-217. [PMID: 32314897 PMCID: PMC7184276 DOI: 10.7518/hxkq.2020.02.017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Received: 06/05/2019] [Revised: 08/25/2019] [Indexed: 11/21/2022]
Abstract
Implant osseointegration is an important biological basis for dental implantology. Many factors, including surgical factors, implant factors, and patients' own factors, affect implant osseointegration. Notably, the application of systemic drugs to improve implant osseointegration has become a research hotspot. This article reviews the effects of systemic drugs on implant osseointegration based on animal researches to provide systemic drug selection to improve implant osseointegration and lay a good foundation for later clinical trials.
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Affiliation(s)
- Ya-Nan Wang
- School of Stomatology, Shandong University, Jinan 250012, China;Shandong Provincial Key Laboratory of Oral Tissue Regeneration, Jinan 250012, China
| | - Ting-Ting Jia
- School of Stomatology, Shandong University, Jinan 250012, China;Shandong Provincial Key Laboratory of Oral Tissue Regeneration, Jinan 250012, China
| | - Xin Xu
- School of Stomatology, Shandong University, Jinan 250012, China;Shandong Provincial Key Laboratory of Oral Tissue Regeneration, Jinan 250012, China;Dept. of Implantology, Stomatological Hospital of Shandong University, Jinan 250012, China
| | - Dong-Jiao Zhang
- School of Stomatology, Shandong University, Jinan 250012, China;Shandong Provincial Key Laboratory of Oral Tissue Regeneration, Jinan 250012, China;Dept. of Implantology, Stomatological Hospital of Shandong University, Jinan 250012, China
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Mulinari-Santos G, Santos JSD, Palin LP, Silva ACED, Antoniali C, Faverani LP, Okamoto R. Losartan improves alveolar bone dynamics in normotensive rats but not in hypertensive rats. J Appl Oral Sci 2019; 27:e20180574. [PMID: 31596365 PMCID: PMC6768119 DOI: 10.1590/1678-7757-2018-0574] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2018] [Accepted: 04/09/2019] [Indexed: 12/14/2022] Open
Abstract
Hypertension is one of the main causes of premature death in the world; also, it is associated with several bone alterations. Preclinical studies have demonstrated delayed alveolar bone healing in hypertensive rats. However, losartan has been favorable for consolidation of bone grafts and reduction in active periodontitis. Therefore, losartan is suggested to be effective in bone formation stages, as well as in the synthesis of matrix proteins and mineralization.
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Affiliation(s)
- Gabriel Mulinari-Santos
- Universidade Estadual Paulista - UNESP, Departmento de Cirurgia e Clínica Integrada, Faculdade de Odontologia de Araçatuba, Araçatuba, São Paulo, Brasil
| | - Jaqueline Silva Dos Santos
- Universidade Estadual Paulista - UNESP, Departamento de Ciências Básicas, Faculdade de odontologia de Araçatuba, Araçatuba, São Paulo, Brasil
| | - Letícia Pitol Palin
- Universidade Estadual Paulista - UNESP, Departamento de Ciências Básicas, Faculdade de odontologia de Araçatuba, Araçatuba, São Paulo, Brasil
| | - Ana Cláudia Ervolino da Silva
- Universidade Estadual Paulista - UNESP, Departamento de Ciências Básicas, Faculdade de odontologia de Araçatuba, Araçatuba, São Paulo, Brasil
| | - Cristina Antoniali
- Universidade Estadual Paulista - UNESP, Departamento de Ciências Básicas, Faculdade de odontologia de Araçatuba, Araçatuba, São Paulo, Brasil
| | - Leonardo Perez Faverani
- Universidade Estadual Paulista - UNESP, Departmento de Cirurgia e Clínica Integrada, Faculdade de Odontologia de Araçatuba, Araçatuba, São Paulo, Brasil
| | - Roberta Okamoto
- Universidade Estadual Paulista - UNESP, Departamento de Ciências Básicas, Faculdade de odontologia de Araçatuba, Araçatuba, São Paulo, Brasil.,Affiliated with Research productivity scholarship (Process:306389/2017-7)
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Effects of local application of alendronate on early healing of extraction socket in dogs. Clin Oral Investig 2019; 24:1579-1589. [PMID: 31346723 DOI: 10.1007/s00784-019-03031-7] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2019] [Accepted: 07/16/2019] [Indexed: 12/17/2022]
Abstract
OBJECTIVE The aim of the present study was to assess the effects of alendronate (ALN) on bone remodeling following tooth extraction in a dog model. MATERIAL AND METHODS For the study, fifteen male Beagles dogs of approximately 12 months of age were used. Mesial roots of four mandibular premolars were endodontically treated, and the distal roots were removed. ALN concentrations of 0.5, 1, and 2 mg/mL were topically applied for 15 min, while a sterile saline was used as a negative control. After the healing period of 1, 2, and 8 weeks, the samples were analyzed by micro-CT and histology. RESULTS Treatment with ALN increased vertical distance between the lingual and the buccal crestal bones. While the ALN-treated sockets had preserved more lingual bone areas, control sockets showed better preservation of the buccal bone areas. ALN treatment resulted in more osteoid formation within the extraction sockets compared with the control. Higher bone volume was found in ALN groups than in the control at 2-week and 8-week healing periods, reaching the significant difference only for the extraction sockets pooled for the ALN treatment. CONCLUSIONS Although ALN treatment could not prevent buccal bone resorption following tooth extraction in dogs, it proved beneficial for the preservation of the lingual bone and formation of new bone within the socket. There was no clear relation between the ALN dosages and the alterations within the extraction sockets. CLINICAL RELEVANCE ALN affects bone remodeling of the extraction socket. The optimal concentration remains to be determined in future studies.
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Teriparatide improves alveolar bone modelling after tooth extraction in orchiectomized rats. Arch Oral Biol 2019; 102:147-154. [DOI: 10.1016/j.archoralbio.2019.04.007] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2018] [Revised: 04/05/2019] [Accepted: 04/11/2019] [Indexed: 01/09/2023]
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Barik A, Chakravorty N. Targeted Drug Delivery from Titanium Implants: A Review of Challenges and Approaches. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2019; 1251:1-17. [PMID: 31768968 DOI: 10.1007/5584_2019_447] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Titanium implants are considered the gold standard of treatment for dental and orthopedic applications. Biocompatibility, low elasticity, and corrosion resistance are some of the key properties of these metallic implants. Nonetheless, a long-term clinical failure of implants may occur due to inadequate osseointegration. Poor osseointegration induces mobility, inflammation, increased bone resorption, and osteolysis; hence, it may result in painful revision surgeries. Topographical modifications, improvement in hydrophilicity, and the development of controlled-release drug-loading systems have shown to improve cellular adhesion, proliferation, and differentiation. Surface modifications, along with drug coating, undoubtedly demonstrate better osseointegration, especially in challenged degenerative conditions, such as osteoporosis, osteoarthritis, and osteogenesis imperfecta. Anabolic bone-acting drugs, such as parathyroid hormone peptides, simvastatin, prostaglandin-EP4-receptor antagonist, vitamin D, strontium ranelate, and anti-catabolic bone-acting drugs, such as calcitonin, bisphosphonates, and selective estrogen receptor modulators, expedite the process of osseointegration. In addition, various proteins, peptides, and growth factors may accessorize the idea of localized therapy. Loading these substances on modified titanium surfaces is achieved commonly by mechanisms such as direct coating, adsorption, and incorporating in biodegradable polymers. The primary approach toward the optimum drug loading is a critical trade-off between factors preventing release of a drug immediately and those allowing slow and sustained release. Recent advances broaden the understanding of the efficacy of adsorption, hydrogel coating, and electrospinning layer-by-layer coating facilitated by differential charge on metallic surface. This review discusses the existing approaches and challenges for the development of stable and sustained drug delivery systems on titanium implants, which would promote faster and superior osseointegration.
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Affiliation(s)
- Anwesha Barik
- School of Medical Science and Technology, Indian Institute of Technology Kharagpur, Kharagpur, Paschim Medinipur, West Bengal, India
| | - Nishant Chakravorty
- School of Medical Science and Technology, Indian Institute of Technology Kharagpur, Kharagpur, Paschim Medinipur, West Bengal, India.
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Lisboa-Filho PN, Gomes-Ferreira PHS, Batista FRS, Momesso GAC, Faverani LP, Okamoto R. Bone repair with raloxifene and bioglass nanoceramic composite in animal experiment. Connect Tissue Res 2018; 59:97-101. [PMID: 29745810 DOI: 10.1080/03008207.2018.1430143] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
OBJECTIVE This study proposes to evaluate, by means of microtomographic analysis, the topical potential of raloxifene combined with BioGran® through the sonochemical method in the repair of critical bone defects in the calvaria of rats. The hypothesis was that the homogenization of Raloxifene to Biogran at the 20% concentration would improve the bone repair at the grafted site. MATERIALS AND METHODS A 5-mm calvaria bone defect was induced in three groups: CTR (100% BioGran®); RAL10 (90% BioGran® and 10% raloxifene), and RAL20 (80% BioGran® and 20% raloxifene). The animals were euthanized after 30 days and the microCT analysis was then performed to evaluate the parameters bone volume (BV), bone volume percentage (BV/TV), trabecular bone thickness (Tb.Th), and the separation and number of trabeculae (Tb.Sp and Tb.N). The obtained results were compared using ANOVA and Tukey test (p < 0.05). RESULTS The best results were found for the CTR and RAL20 groups, in which the BV, BV/TV, Tb.Sp, and Tb.N parameters were statistically significant in comparison with RAL10 (p < 0.05). CONCLUSIONS In view of the results obtained in this experiment, we can conclude that BioGran® alone or in an 80/20 mass concentration with raloxifene can lead to favorable bone formation.
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Affiliation(s)
- Paulo N Lisboa-Filho
- a Department of Physics , UNESP - São Paulo State University, School of Sciences , Bauru , SP , Brazil
| | - Pedro Henrique S Gomes-Ferreira
- b Department of Surgery and Integrated Clinic , UNESP - São Paulo State University, Araçatuba Dental School , Araçatuba , SP , Brazil
| | - Fábio R S Batista
- b Department of Surgery and Integrated Clinic , UNESP - São Paulo State University, Araçatuba Dental School , Araçatuba , SP , Brazil
| | - Gustavo A C Momesso
- b Department of Surgery and Integrated Clinic , UNESP - São Paulo State University, Araçatuba Dental School , Araçatuba , SP , Brazil
| | - Leonardo P Faverani
- b Department of Surgery and Integrated Clinic , UNESP - São Paulo State University, Araçatuba Dental School , Araçatuba , SP , Brazil
| | - Roberta Okamoto
- c Department of Basic Sciences UNESP - São Paulo State University, School of Sciences , Bauru , SP , Brazil
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Dereka X, Calciolari E, Donos N, Mardas N. Osseointegration in osteoporotic-like condition: A systematic review of preclinical studies. J Periodontal Res 2018; 53:933-940. [PMID: 29845622 DOI: 10.1111/jre.12566] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/28/2018] [Indexed: 12/11/2022]
Abstract
Osteoporosis is one of the most common skeletal disorders affecting a significant percentage of people worldwide. Research data suggested that systemic diseases such as osteoporosis could act as risk factors for osseointegration, jeopardizing the healing process and thus the predictability of dental implant success on compromised patients. It is well accepted that preclinical studies in animal models reproducing the osteoporotic condition are one of the most important stages in the research of new biomaterials and therapeutic modalities. The aim of this systematic review was to investigate whether osteoporosis compromises dental implant osseointegration in experimental osteoporotic-like conditions. A 3-stage systematic literature research was conducted in MEDLINE via OVID and EMBASE up to and including March 2017. Experimental studies reporting on dental implant osseointegration on different osteoporotic animal models were assessed. The studies had to report on the percentage of bone-to-implant contact (%BIC) as the primary outcome. ARRIVE guidelines for reporting on animal research were applied to evaluate the methodological quality and risk of bias of the studies. Fifty-seven studies met the inclusion criteria and were assessed qualitatively. The most adopted animal model was the rat. A variability of %BIC values was observed, ranging from 30% to 99% and from 26% to 94% for the healthy and osteoporotic group, respectively. The great majority (47) of the included studies concluded that estrogen deficiency significantly affects BIC values, 9 studies stated that it was not possible to observe statistical differences in BIC between ovariectomized and healthy groups and 1 study did not provide a comparison between the healthy and osteoporotic group. Owing to the great heterogeneity in implant surface, study design, observation time-points, site of implant placement and reported outcomes, a meta-analysis could not be performed. An overall high risk of bias was observed, owing to the limited information on animal housing and husbandry, baseline characteristics and health status, ethical statement and allocation to the experimental groups provided. Although the available studies seem to suggest a lower osseointegration in osteoporotic-like conditions, no robust conclusions can be drawn due to the great heterogeneity and overall low quality of the available studies. Future studies with emphasis on minimizing the possible sources of bias and evaluating osseointegration of dental implants placed into jawbones instead of long bones are warranted.
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Affiliation(s)
- X Dereka
- Department of Periodontology, School of Dentistry, National and Kapodistrian University of Athens, Athens, Greece
- Centre for Oral Immunobiology & Regenerative Medicine, Barts and The London School of Medicine and Dentistry, Queen Mary University of London (QMUL), London, UK
- Centre for Clinical Oral Research, Institute of Dentistry, Barts and The London School of Medicine and Dentistry, Queen Mary University of London (QMUL), London, UK
| | - E Calciolari
- Centre for Oral Immunobiology & Regenerative Medicine, Barts and The London School of Medicine and Dentistry, Queen Mary University of London (QMUL), London, UK
- Centre for Clinical Oral Research, Institute of Dentistry, Barts and The London School of Medicine and Dentistry, Queen Mary University of London (QMUL), London, UK
| | - N Donos
- Centre for Oral Immunobiology & Regenerative Medicine, Barts and The London School of Medicine and Dentistry, Queen Mary University of London (QMUL), London, UK
- Centre for Clinical Oral Research, Institute of Dentistry, Barts and The London School of Medicine and Dentistry, Queen Mary University of London (QMUL), London, UK
| | - N Mardas
- Centre for Oral Immunobiology & Regenerative Medicine, Barts and The London School of Medicine and Dentistry, Queen Mary University of London (QMUL), London, UK
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Mulinari-Santos G, de Souza Batista FR, Kirchweger F, Tangl S, Gruber R, Okamoto R. Losartan reverses impaired osseointegration in spontaneously hypertensive rats. Clin Oral Implants Res 2018; 29:1126-1134. [DOI: 10.1111/clr.13376] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2017] [Revised: 06/20/2018] [Accepted: 08/11/2018] [Indexed: 01/06/2023]
Affiliation(s)
- Gabriel Mulinari-Santos
- Department of Oral Surgery and Integrated Clinic, Araçatuba Dental School; Universidade Estadual Paulista “Júlio de Mesquita Filho”; Araçatuba Brazil
- Karl Donath Laboratory for Hard Tissue and Biomaterial Research, Department of Oral Surgery, School of Dentistry; Medical University of Vienna; Vienna Austria
- Austrian Cluster for Tissue Regeneration; Vienna Austria
- Department of Oral Biology, Dental School; Medical University of Vienna; Vienna Austria
| | - Fábio Roberto de Souza Batista
- Department of Oral Surgery and Integrated Clinic, Araçatuba Dental School; Universidade Estadual Paulista “Júlio de Mesquita Filho”; Araçatuba Brazil
| | - Franziska Kirchweger
- Karl Donath Laboratory for Hard Tissue and Biomaterial Research, Department of Oral Surgery, School of Dentistry; Medical University of Vienna; Vienna Austria
- Austrian Cluster for Tissue Regeneration; Vienna Austria
| | - Stefan Tangl
- Karl Donath Laboratory for Hard Tissue and Biomaterial Research, Department of Oral Surgery, School of Dentistry; Medical University of Vienna; Vienna Austria
- Austrian Cluster for Tissue Regeneration; Vienna Austria
| | - Reinhard Gruber
- Austrian Cluster for Tissue Regeneration; Vienna Austria
- Department of Oral Biology, Dental School; Medical University of Vienna; Vienna Austria
- Department of Periodontology, School of Dental Medicine; University of Bern; Bern Switzerland
| | - Roberta Okamoto
- Department of Basic Science, Araçatuba Dental School; Universidade Estadual Paulista “Júlio de Mesquita Filho”; Araçatuba Brazil
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Hassumi JS, Mulinari-Santos G, Fabris ALDS, Jacob RGM, Gonçalves A, Rossi AC, Freire AR, Faverani LP, Okamoto R. Alveolar bone healing in rats: micro-CT, immunohistochemical and molecular analysis. J Appl Oral Sci 2018; 26:e20170326. [PMID: 29898174 PMCID: PMC6010327 DOI: 10.1590/1678-7757-2017-0326] [Citation(s) in RCA: 41] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2017] [Accepted: 12/11/2017] [Indexed: 12/11/2022] Open
Abstract
INTRODUCTION Alveolar bone healing after upper incisor extraction in rats is a classical model of preclinical studies. The underlying morphometric, cellular and molecular mechanism, however, remains imprecise in a unique study. OBJECTIVES The aim of this study was therefore to characterize the alveolar bone healing after upper incisor extraction in rats by micro computed tomographic (Micro-CT), immunohistochemical and real-time polymerase chain reaction (RT-PCR) analysis. MATERIAL AND METHODS Thirty animals (Rattus norvegicus, Albinus Wistar) were divided into three groups after upper incisors extraction at 7, 14, and 28 days. Micro-CT was evaluated based on the morphometric parameters. Subsequently, the histological analyses and immunostaining of osteoprotegerin (OPG), receptor activator of nuclear kappa B ligand (RANKL) and tartrate resistant acid phosphate (TRAP) was performed. In addition, RT-PCR analyses of OPG, RANKL, the runt-related transcription factor 2 (RUNX2), osteocalcin (OC), osteopontin (OPN), osterix (OST) and receptor activator of nuclear kappa B (RANK) were performed to determine the expression of these proteins in the alveolar bone healing. RESULTS Micro-CT: The morphometric parameters of bone volume and trabecular thickness progressively increased over time. Consequently, a gradual decrease in trabecular separation, trabecular space and total bone porosity was observed. Immunohistochemical: There were no differences statistically significant between the positive labeling for OPG, RANKL and TRAP in the different periods. RT-PCR: At 28 days, there was a significant increase in OPG expression, while RANKL expression and the RANKL/OPG ratio both decreased over time. CONCLUSION Micro-CT showed the newly formed bone had favorable morphometric characteristics of quality and quantity. Beyond the RUNX2, OC, OPN, OST, and RANK proteins expressed in the alveolar bone healing, OPG and RANKL activity showed to be essential for activation of basic multicellular units during the alveolar bone healing.
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Affiliation(s)
- Jaqueline Suemi Hassumi
- Univ. Estadual Paulista, Faculdade de Odontologia de Araçatuba, Departamento de Cirurgia e Clínica Integrada, Araçatuba, São Paulo, Brasil
| | - Gabriel Mulinari-Santos
- Univ. Estadual Paulista, Faculdade de Odontologia de Araçatuba, Departamento de Ciências Básicas, Araçatuba, São Paulo, Brasil
| | - André Luis da Silva Fabris
- Univ. Estadual Paulista, Faculdade de Odontologia de Araçatuba, Departamento de Ciências Básicas, Araçatuba, São Paulo, Brasil
| | - Ricardo Garcia Mureb Jacob
- Univ. Estadual Paulista, Faculdade de Odontologia de Araçatuba, Departamento de Ciências Básicas, Araçatuba, São Paulo, Brasil
| | - Alaíde Gonçalves
- Univ. Estadual Paulista, Faculdade de Odontologia de Araçatuba, Departamento de Cirurgia e Clínica Integrada, Araçatuba, São Paulo, Brasil
| | - Ana Cláudia Rossi
- Universidade Estadual de Campinas, Faculdade de Odontologia de Piracicaba, Departamento de Morfologia, Piracicaba, São Paulo, Brasil
| | - Alexandre Rodrigues Freire
- Universidade Estadual de Campinas, Faculdade de Odontologia de Piracicaba, Departamento de Morfologia, Piracicaba, São Paulo, Brasil
| | - Leonardo Pérez Faverani
- Univ. Estadual Paulista, Faculdade de Odontologia de Araçatuba, Departamento de Ciências Básicas, Araçatuba, São Paulo, Brasil
| | - Roberta Okamoto
- Univ. Estadual Paulista, Faculdade de Odontologia de Araçatuba, Departamento de Cirurgia e Clínica Integrada, Araçatuba, São Paulo, Brasil
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Geng T, Chen X, Zheng M, Yu H, Zhang S, Sun S, Guo H, Jin Q. Effects of strontium ranelate on wear particle‑induced aseptic loosening in female ovariectomized mice. Mol Med Rep 2018; 18:1849-1857. [PMID: 29901109 DOI: 10.3892/mmr.2018.9133] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2017] [Accepted: 05/02/2018] [Indexed: 11/06/2022] Open
Abstract
Aseptic loosening and menopause‑induced osteoporosis are caused by an imbalance between bone formation and osteolysis. With an aging population, the probability of simultaneous occurrence of such conditions in an elderly individual is increasing. Strontium ranelate (SR) is an anti‑osteoporosis drug that promotes bone formation and inhibits osteolysis. The present study compared the effects of SR with those of the traditional anti‑osteoporosis drug alendronate (ALN) using an ovariectomized mouse model of osteolysis. The degree of firmness of the prosthesis and the surrounding tissue was examined, a micro‑CT scan of the prosthesis and the surrounding tissue was performed, and the levels of inflammatory and osteogenic and osteoclast factors were examined. It was observed that treatment with SR and ALN improved the bond between the prosthesis and the surrounding bone tissue by reducing the degree of osteolysis, thus improving the quality of bone around the prosthesis. SR increased the secretion of osteocalcin, runt‑related transcription factor 2 and osteoprotegerin (OPG). It additionally decreased the expression of the receptor activator of nuclear factor‑κB ligand (RANKL) and consequently increased the protein ratio OPG/RANKL, whereas ALN exhibited the opposite effect. Furthermore, SR and ALN suppressed tumor necrosis factor‑α and interleukin‑1β production, with SR exerting a more marked effect. The present results demonstrate that SR and ALN may stimulate bone formation and inhibit bone resorption in the ovariectomized mouse model of wear particle‑mediated osteolysis, with SR demonstrating better effects compared with ALN.
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Affiliation(s)
- Tianxiang Geng
- Department of Orthopedic Surgery, Ningxia Medical University, Yinchuan, Ningxia Hui Autonomous Region 750004, P.R. China
| | - Xi Chen
- Department of Orthopedic Surgery, Ningxia Medical University, Yinchuan, Ningxia Hui Autonomous Region 750004, P.R. China
| | - Mengxue Zheng
- Department of Orthopedic Surgery, Ningxia Medical University, Yinchuan, Ningxia Hui Autonomous Region 750004, P.R. China
| | - Haochen Yu
- Department of Orthopedic Surgery, Ningxia Medical University, Yinchuan, Ningxia Hui Autonomous Region 750004, P.R. China
| | - Shuai Zhang
- Department of Orthopedic Surgery, General Hospital of Ningxia Medical University, Yinchuan, Ningxia Hui Autonomous Region 750004, P.R. China
| | - Shouxuan Sun
- Department of Orthopedic Surgery, General Hospital of Ningxia Medical University, Yinchuan, Ningxia Hui Autonomous Region 750004, P.R. China
| | - Haohui Guo
- Department of Orthopedic Surgery, General Hospital of Ningxia Medical University, Yinchuan, Ningxia Hui Autonomous Region 750004, P.R. China
| | - Qunhua Jin
- Department of Orthopedic Surgery, General Hospital of Ningxia Medical University, Yinchuan, Ningxia Hui Autonomous Region 750004, P.R. China
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Abstract
Menopause is an important transition in the life of women. It has been estimated that by the year 2030, worldwide 1.2 billion women will be menopausal. The most bothersome symptoms of menopause are believed to be due to declines in estrogen levels in postmenopausal women. Thus, hormone therapy is an effective treatment option for menopausal women, although prolonged use of hormone therapy is associated with a slightly increased risk of breast cancer, thromboembolism, and stroke. A literature search for studies evaluating the effects of hormone therapy in menopausal women with asymptomatic fibroids demonstrated variable effects of hormone therapy on the volume and size of the fibroids. Some studies have demonstrated an increase in size of pre-existing asymptomatic fibroids and formation of new fibroids with higher doses of progestogen in combination therapy. The finding of low resistance index in uterine arteries of women with asymptomatic fibroids is associated with an increased risk of fibroid growth, and thus making the measurement of pulsatility index of uterine arteries a possible screening tool before initiating hormone therapy in menopausal women with fibroids. Although the effect of hormone treatment is variable and statistically insignificant in many cases, the newer selective estrogen receptor modulators having tissue-specific estrogen agonistic and antagonistic actions such as raloxifene have a favorable clinical profile and may be better alternatives in women with asymptomatic fibroids.
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