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Kacar E, Oz ZD, Serhatlioglu I, Kaya Tektemur N, Ozdede MR, Yalcin T, Ozbeg G, Ozgen A, Tan F, Orhan SU, Zorlu O, Ucer A, Yasar A, Yilmaz B, Kelestimur H. Asprosin-induced alterations in female rat puberty and reproductive hormonal profiles. Arch Physiol Biochem 2024:1-9. [PMID: 39092983 DOI: 10.1080/13813455.2024.2386279] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/31/2024] [Revised: 05/06/2024] [Accepted: 07/25/2024] [Indexed: 08/04/2024]
Abstract
OBJECTIVE To investigate the comprehensive effects of daily chronic asprosin administration on various pubertal and reproductive parameters in female rats. This study aims to elucidate the role of asprosin in regulating the onset of puberty and its influence on hormonal profiles and ovarian histology. METHODS Asprosin was administered intraperitoneally (i.p.) at a dose of 500 ng/kg daily for eight weeks. Hormonal assays and histological analyses were performed to evaluate the effects of asprosin on the onset of puberty and reproductive function. RESULTS Daily chronic administration of asprosin accelerated the onset of the first oestrus. Hormonal assays revealed significant elevations in serum levels of Follicle-Stimulating Hormone (FSH) and Oestradiol (E2), while Inhibin B levels decreased. Histological evaluations demonstrated an increased number of primary and secondary follicles in ovarian tissue, without affecting primordial follicle counts or reproductive organ weights. CONCLUSIONS Role of adipokines in regulating puberty and reproductive function has increasingly gained recognition. This study aimed to provide the first comprehensive examination of the effects of daily chronic asprosin administration on pubertal and reproductive parameters in female rats. Utilising hormonal assays and histological analyses, asprosin was administered intraperitoneally (i.p.) at a dose of 500 ng/kg, daily, for eight weeks. Our findings revealed that daily chronic administration of asprosin accelerated the onset of the first oestrus. Hormonal assays showed significant elevations in serum levels of Follicle-Stimulating Hormone (FSH) and Oestradiol (E2), while Inhibin B levels decreased. Histological evaluations demonstrated an increased number of primary and secondary follicles in ovarian tissue, without affecting primordial follicle counts or reproductive organ weights. These results provide new insights into asprosin's role in advancing the age of first oestrus and modulating hormonal profiles, thereby offering potential benefits to the female reproductive system.
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Affiliation(s)
- Emine Kacar
- Department of Physiology, Firat University, Elazig, Turkey
| | - Zeynep Dila Oz
- Department of Physiology, Firat University, Elazig, Turkey
| | | | | | | | - Tugce Yalcin
- Department of Physiology, Firat University, Elazig, Turkey
| | - Gulendam Ozbeg
- Department of Physiology, Firat University, Elazig, Turkey
| | - Aslisah Ozgen
- Department of Physiology, Firat University, Elazig, Turkey
| | - Fatih Tan
- Vocational School of Health Services, Osmaniye Korkut Ata University, Osmaniye, Turkey
| | | | - Ozge Zorlu
- Department of Biophysics, Firat University, Elazig, Turkey
| | - Aysun Ucer
- Department of Biophysics, Firat University, Elazig, Turkey
| | - Abdullah Yasar
- Vocational School of Health Services, Firat University, Elazig, Turkey
| | - Bayram Yilmaz
- Department of Physiology, Yeditepe University, Istanbul, Turkey
| | - Haluk Kelestimur
- Department of Physiology, Istanbul Okan University, Istanbul, Turkey
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Samadi A, Ismaili Z, El Yamani A. Multidisciplinary management of implant failure: A case report. Clin Case Rep 2024; 12:e9269. [PMID: 39104737 PMCID: PMC11299075 DOI: 10.1002/ccr3.9269] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2024] [Revised: 07/11/2024] [Accepted: 07/21/2024] [Indexed: 08/07/2024] Open
Abstract
Key Clinical Message This case report presents the interest of multidisciplinary management of extreme peri-implantitis requiring removal of implant emphasizing the different surgical and showing that the ovate pontic of conventional bridge is an optimal alternative for rehabilitation of the premolar sector, despite the fact that its main diffusion has been in the anterior sector due to the high demand aesthetic. Abstract Peri-implantitis leads to gradual peri-implant bone loss. Severe and extreme cases lead to complete implant failure and imply lost implants have to be removed. Residual ridge deformity management after implant removal is one of the factors contributing to improved aesthetic and functional results. Various grafting procedures have been developed to achieve this goal. This report describes a case of implant removal from the upper right first premolar due to advanced peri-implantitis in a 51-year-old female patient. Guided bone regeneration with a alloplastic bone graft and resorbable collagen membrane combined with roll pedicle connective tissue graftt was used for both socket and soft-tissue augmentation. This was combined with ovate design conventional provisional bridge. After a 6-month of healing phase, a perfect adaptation of the marginal gingiva around the provisional restoration was obtained. Cone beam computed tomography revealed significant bone fill and buccolingual dimensional stability. A conventional all-ceramic bridge with an oval pontic design was chosen as a definitive prosthetic solution to compensate for edentulism and maintain the good aesthetic results. According to the encouraging result obtained in this clinical case, the conventional prosthetic restoration associated with surgical reconstruction of failing tissues can be considered as a successful treatment in the case of advanced peri-implantitis requiring implant removal.
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Affiliation(s)
- Alaa Samadi
- Department of Prosthodontics, Faculty of DentistryMohammed V University in RabatRabatMorocco
| | - Zouheir Ismaili
- Department of Periodontology, Faculty of DentistryMohammed V Universityin RabatRabatMorocco
| | - Amal El Yamani
- Department of Prosthodontics, Faculty of DentistryMohammed V University in RabatRabatMorocco
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Montalbán-Vadillo O, Pérez-Pevida E, Viteri-Agustín I, Chávarri-Prado D, Estrada-Martínez A, Diéguez-Pereira M, Sánchez-Lasheras F, Brizuela-Velasco A. Effect of Applying 1% Metformin on Guided Bone Regeneration Processes with Bovine-Derived Xenografts. J Clin Med 2024; 13:2973. [PMID: 38792514 PMCID: PMC11122524 DOI: 10.3390/jcm13102973] [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: 04/07/2024] [Revised: 05/13/2024] [Accepted: 05/17/2024] [Indexed: 05/26/2024] Open
Abstract
Background: Although xenografts have shown successful results in GBR procedures due to their osteoconductive properties, many authors have opted to add co-adjuvant drugs to favor osteogenesis and differentiate cells into an osteoblastic lineage. Metformin has been shown to have bone-protective properties, regulating osteoclast differentiation, as well as the ability to promote osteoblast mineralization and differentiation. The present study aimed to evaluate the effect of the local application of a 1% metformin solution on bone neoformation in the treatment of an experimental bone defect in a guided bone regeneration animal model with a particulated bovine hydroxyapatite xenograft with hyaluronate. Methods: With this purpose in mind, two critical defects with 8 mm diameter and 0.5 mm depth were created in eight male New Zealand rabbit calvarias. Titanium cylinders were fixed in each defect and filled with particulate hydroxyapatite of bovine origin and sodium hyaluronate, with sterile injectable saline added to the control group and sterile 1% metformin solution added to the test group. At 6 weeks, the animals were euthanized, and samples were obtained and prepared for histomorphometric analysis. Results: A higher percentage of new bone formation was observed in the metformin samples than in the control samples, both in the region closest to the animal's calvaria and in the most distal region analyzed. A higher average bone-biomaterial contact percentage was observed in the samples, with metformin in both the proximal and distal regions. There was no statistically significant difference in the mean value in either region in both parameters. Conclusion: The local application of a 1% metformin solution in an animal model of guided bone regeneration with particulate bovine hydroxyapatite and hyaluronate resulted in greater bone neoformation and xenograft osseointegration than in the control group.
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Affiliation(s)
- Oier Montalbán-Vadillo
- Department of Surgery, Faculty of Medicine, University of Salamanca, 37007 Salamanca, Spain
| | - Esteban Pérez-Pevida
- Department of Surgery, Faculty of Medicine, University of Salamanca, 37007 Salamanca, Spain
- Faculty of Health Sciences, Miguel de Cervantes European University, 47012 Valladolid, Spain
- EDE-SRGROUP, La Salle Higher Center for University Studies, 28023 Madrid, Spain
| | - Iratxe Viteri-Agustín
- Faculty of Health Sciences, Miguel de Cervantes European University, 47012 Valladolid, Spain
| | - David Chávarri-Prado
- Faculty of Health Sciences, Miguel de Cervantes European University, 47012 Valladolid, Spain
| | | | - Markel Diéguez-Pereira
- Faculty of Health Sciences, Miguel de Cervantes European University, 47012 Valladolid, Spain
| | - Fernando Sánchez-Lasheras
- University Institute of Space Sciences and Technologies of Asturias (ICTEA), University of Oviedo, 33004 Oviedo, Spain
- Department of Mathematics, Faculty of Sciences, University of Oviedo, 33007 Oviedo, Spain
| | - Aritza Brizuela-Velasco
- Faculty of Health Sciences, Miguel de Cervantes European University, 47012 Valladolid, Spain
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Guler R, Dundar S, Bozoglan A, Ozcan EC, Ozupek MF, Acikan I, Gunes N, Bingul MB. The Biomechanical Investigation of Osseointegration Levels in Titanium Implants Simultaniously Placed with Different Bone Grafts. Niger J Clin Pract 2024; 27:310-316. [PMID: 38528350 DOI: 10.4103/njcp.njcp_529_23] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2023] [Accepted: 01/23/2024] [Indexed: 03/27/2024]
Abstract
BACKGROUND Dental implant-supported prostheses have been scientifically accepted and have been a common treatment choice in the case reconstructing of partial or total tooth loss. In additon, bone grafts (alloplast, xsenograft, allograft) are frequently used in implant and sinus lift surgical procedures. AIM The aim of this study is to investigate the bone-implant osseointegration levels of titanium implants simultaniously placed with different bone grafts. MATERIALS AND METHODS In the study, 32 female S. Dawley rats were divided into four groups. In the control group (n = 8), turned surface implants with a 2.5 mm diameter and a 4 mm length were placed in the tibia of the rats without the use of a graft material. In the experimental groups, bone cavities were opened in the tibias of the rats and a synthetic (alloplast) graft (n = 8), human allograft (n = 8), and bovine xsenograft (n = 8) were placed simultaniously with a 2.5 mm diameter and a 4 mm length turned surface titanium implants. The cavities in the experimental groups were opened with a 4 mm diameter and a 5 mm length. After 8 weeks of recovery, all rats were sacrificed at the end of the experimental period. The implants and surrounding bone tissue were removed. The removed tissue was subjected to biomechanical analysis in order to evaluate bone-implant osseointegration and peri-implant new bone formation. The Kolmogorov-Smirnov test, Kruskal-Wallis test, and Mann-Whitney U-test were used in the study. Significance was evaluated at the P < 0.05 level. RESULTS In the biomechanical analyses, it was determined that there was no statistically significant difference between the control group and the other three groups in which different graft materials were applied in terms of bone-implant osseointegration (P > 0.05). In other words, in the biomechanical analyses, no statistical difference was found between any of the groups. CONCLUSIONS As a result of this study, it can be thought that different graft materials can be successfully used in peri-implant-guided bone regeneration and may be an alternative to autogenous grafts.
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Affiliation(s)
- R Guler
- Department of Oral and Maxillofacial Surgery, Faculty of Dentistry, Dicle University, Diyarbakir, Turkey
| | - S Dundar
- Department of Periodontology, Faculty of Dnetistry, Firat University, Elazig, Turkey
| | - A Bozoglan
- Department of Periodontology, Faculty of Dnetistry, Firat University, Elazig, Turkey
| | - E C Ozcan
- Department of Esthetic, Plastic and Reconsructive Surgery, Faculty of Medicine, Firat University, Elazig, Turkey
| | - M F Ozupek
- Department of Oral and Maxillofacial Surgery, Faculty of Dentistry, Firat University, Elazig, Turkey
| | - I Acikan
- Department of Oral and Maxillofacial Surgery, Faculty of Dentistry, Kahramanmaras Sutcu Imam University, Kahramanmaras, Turkey
| | - N Gunes
- Department of Oral and Maxillofacial Surgery, Faculty of Dentistry, Dicle University, Diyarbakir, Turkey
| | - M B Bingul
- Department of Oral and Maxillofacial Surgery, Faculty of Dentistry, Sanliurfa Harran University, Sanliurfa, Turkey
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Li J, Zhao Y, Chen S, Wang S, Zhong W, Zhang Q. Research Hotspots and Trends of Bone Xenograft in Clinical Procedures: A Bibliometric and Visual Analysis of the Past Decade. Bioengineering (Basel) 2023; 10:929. [PMID: 37627814 PMCID: PMC10451653 DOI: 10.3390/bioengineering10080929] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2023] [Revised: 07/11/2023] [Accepted: 07/21/2023] [Indexed: 08/27/2023] Open
Abstract
BACKGROUND Bone defect therapy is a common clinical challenge for orthopedic and clinical physicians worldwide, and the therapeutic effect affects the physiological function and healthy life quality of millions of patients. Compared with traditional autogenous bone transplants, bone xenografts are attracting attention due to their advantages of unlimited availability and avoidance of secondary damage. However, there is currently a lack of bibliometric analysis on bone xenograft. This study aimed to use bibliometric methods to analyze the literature on bone xenograft from 2013 to 2023, to explore the current status, hotspots, and future trends of research in this field, and to promote its development and progress. METHODS Using the Web of Science Core Collection database, we retrieved and collected publication data related to xenogeneic bone grafting materials worldwide from January 2013 to March 2023. Origin (2021), CiteSpace (6.2.R2 standard), and an online bibliometric platform were used for bibliometric analysis and data visualization. RESULTS A total of 3395 documents were retrieved, and 686 eligible papers were selected. The country and institutions with the highest number of publications and centrality were the United States (125 papers, centrality = 0.44) and the University of Zurich (29 papers, centrality = 0.28), respectively. The most cited author was Araujo MG (163 times), and the author with the most significant centrality was Froum SJ (centrality = 0.09). The main keyword clusters were "tissue engineering", "sinus floor elevation", "dental implants", "tooth extraction", and "bone substitutes". The most significant bursting keywords in the last three years were "platelet rich fibrin". CONCLUSIONS Research on bone xenograft is steadily growing and will continue to rise. Currently, research hotspots and directions are mainly focused on dental implants related to bone-augmentation techniques and bone tissue engineering. In the future, research hotspots and directions may focus on decellularization technology and investigations involving platelet-rich fibrin.
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Affiliation(s)
- Jiayue Li
- Guangzhou Key Laboratory of Basic and Applied Research of Oral Regenerative Medicine, Guangdong Engineering Research Center of Oral Restoration and Reconstruction, Affiliated Stomatology Hospital of Guangzhou Medical University, Guangzhou 510182, China
| | - Yujue Zhao
- Guangzhou Key Laboratory of Basic and Applied Research of Oral Regenerative Medicine, Guangdong Engineering Research Center of Oral Restoration and Reconstruction, Affiliated Stomatology Hospital of Guangzhou Medical University, Guangzhou 510182, China
| | - Shili Chen
- Guangzhou Key Laboratory of Basic and Applied Research of Oral Regenerative Medicine, Guangdong Engineering Research Center of Oral Restoration and Reconstruction, Affiliated Stomatology Hospital of Guangzhou Medical University, Guangzhou 510182, China
| | - Simin Wang
- Guangzhou Key Laboratory of Basic and Applied Research of Oral Regenerative Medicine, Guangdong Engineering Research Center of Oral Restoration and Reconstruction, Affiliated Stomatology Hospital of Guangzhou Medical University, Guangzhou 510182, China
| | - Wen Zhong
- Guangzhou Key Laboratory of Basic and Applied Research of Oral Regenerative Medicine, Guangdong Engineering Research Center of Oral Restoration and Reconstruction, Affiliated Stomatology Hospital of Guangzhou Medical University, Guangzhou 510182, China
| | - Qing Zhang
- Guangzhou Key Laboratory of Basic and Applied Research of Oral Regenerative Medicine, Guangdong Engineering Research Center of Oral Restoration and Reconstruction, Affiliated Stomatology Hospital of Guangzhou Medical University, Guangzhou 510182, China
- Laboratory for Myology, Department of Human Movement Sciences, Faculty of Behavioural and Movement Sciences, Vrije Universiteit Amsterdam, Amsterdam Movement Sciences, 51081 BT Amsterdam, The Netherlands
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Effect of an "Autogenous Leukocyte Platelet-Rich Fibrin Tooth Graft" Combination around Immediately Placed Implants in Periodontally Compromised Sites: A Randomized Clinical Trial. Int J Dent 2022; 2022:4951455. [PMID: 35242191 PMCID: PMC8888059 DOI: 10.1155/2022/4951455] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2021] [Revised: 01/05/2022] [Accepted: 01/12/2022] [Indexed: 11/18/2022] Open
Abstract
Objective Autogenous tooth bone graft (ATBG) was suggested as a source for bone grafting materials, especially as they have similar chemical composition to bone. This study goal was to assess the clinical and radiographic consequences of ATBG with or without L-PRF on bone deposition around immediate implants placed in periodontally hopeless sites. Materials and Methods 26 patients, with periodontally diseased teeth, underwent random assignment to receive the surgical protocol either with L-PRF over ATBG around immediately inserted implants (test group) or without it (control group). Clinical examination was observed. Radiographically, bone changes horizontally and vertically to determine marginal bone loss (MBL) and mesiodistal bone changes were made at the base line and 6 and 9 months after implant insertion. Statistical analysis utilizing paired Student's t-test was used for comparing results within the same group, whereas an independent-sample t-test was used for intergroup variable comparison. Results All implants met the criteria of success without any complications at the follow-up period. Nonsignificant differences were detected between horizontal bone alterations in both groups at 6 and 9 months (P > .001). The test group showed statistically significant lower MBL than the control group (P < .001). The mesiodistal bone gain in the test group was significantly higher than that of the control group at the 6-month period (P < .001). The mesiodistal bone loss in the control group was significantly higher than that of the test group at the 9-month period (P < .001). Conclusion The ATBG- L-PRF combination therapy enhances new bone formation and appeared to be a favorable procedure with immediate implant placement, particularly in severe periodontitis cases.
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KOBAT MA, DÜNDAR S, BOZOĞLAN A, GELEN MA, KIVRAK T, ARTAŞ G, AYDIN S. The effects of dual anti-platelet therapy on titanium implant osseointegration: an experimental study. JOURNAL OF HEALTH SCIENCES AND MEDICINE 2022. [DOI: 10.32322/jhsm.1013209] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
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Biomechanical Evaluation of Implant Osseointegration After Guided Bone Regeneration With Different Bone Grafts. J Craniofac Surg 2021; 32:1545-1548. [PMID: 32969936 DOI: 10.1097/scs.0000000000007102] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
Abstract
ABSTRACT The aim of this study was to compare the biomechanical osseointegration of titanium implants after guided bone regeneration (GBR) with a hydroxyapatite graft, deproteinized bovine bone graft, human-derived allograft, and calcium sulfate bone graft. Thirty-two female Sprague Dawley rats were divided into four groups, each containing eight (n = 8) rats: hydroxyapatide (HA), deproteinized bovine bone graft (DPBB), allograft (ALG), and calcium sulfate. Bone defects were created in the tibia of the rats, which were grafted with HA, DPBB, ALG, or CP bone grafts for the purpose of GBR. Ninety days after surgery, machine-surfaced titanium implants were inserted into the area where GBR had been undertaken. After 90 days of the surgical insertion of the implants, the rats were sacrificed, the implants with surrounding bone tissue were removed, and biomechanical osseointegration (N/cm) analysis was performed. No statistically significant differences were found among the groups in osseointegration (N/cm) three months after the GBR procedures (P > 0.05). According to the biomechanical results, none of the grafts used in this study was distinctly superior to any of the others.
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Cha JK, Pla R, Vignoletti F, Jung UW, Sanz-Esporrin J, Sanz M. Immunohistochemical characteristics of lateral bone augmentation using different biomaterials around chronic peri-implant dehiscence defects: An experimental in vivo study. Clin Oral Implants Res 2021; 32:569-580. [PMID: 33629461 DOI: 10.1111/clr.13726] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2020] [Revised: 01/04/2021] [Accepted: 02/17/2021] [Indexed: 11/27/2022]
Abstract
AIM To investigate the immunohistochemical characteristics of a highly porous synthetic bone substitute and a cross-linked collagen membrane for guided bone regeneration. METHODS Three experimental groups were randomly allocated at chronic peri-implant dehiscence defect in 8 beagle dogs: (i) biphasic calcium phosphate covered by a cross-linked collagen membrane (test group), (ii) deproteinized bovine bone mineral covered by a natural collagen membrane (positive control) and (iii) no treatment (negative control). After 8 and 16 weeks of submerged healing, dissected tissue blocks were processed for immunohistochemical analysis. Seven antibodies were used to detect the remaining osteogenic and angiogenic potential, and quantitative immunohistochemical analysis was done by software. RESULTS The antigen reactivity of alkaline phosphatase was significantly higher in the test group compared to the positive and negative controls, and it maintained till 16 weeks. The intensity of osteocalcin was significantly higher in the positive control at 8 weeks than the other groups, but significantly decreased at 16 weeks and no difference was found between the groups. A significant large number of TRAP-positive cells were observed in the test group mainly around the remaining particles at 16 weeks. The angiogenic potential was comparable between the groups showing no difference in the expression of transglutaminase II and vascular endothelial growth factor. CONCLUSION Guided bone regeneration combining a highly porous biphasic calcium phosphate synthetic biomaterial with a crosslinked collagen membrane, resulted in extended osteogenic potential when compared to the combination of deproteinized bovine bone mineral and a native collagen membrane.
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Affiliation(s)
- Jae-Kook Cha
- Department of Periodontology, Research Institute for Periodontal Regeneration, Yonsei University College of Dentistry, Seoul, South Korea
| | - Rafael Pla
- Department of Periodontology, Faculty of Odontology, University Complutense of Madrid, Madrid, Spain
| | - Fabio Vignoletti
- Department of Periodontology, Faculty of Odontology, University Complutense of Madrid, Madrid, Spain
| | - Ui-Won Jung
- Department of Periodontology, Research Institute for Periodontal Regeneration, Yonsei University College of Dentistry, Seoul, South Korea
| | - Javier Sanz-Esporrin
- Department of Periodontology, Faculty of Odontology, University Complutense of Madrid, Madrid, Spain
| | - Mariano Sanz
- Department of Periodontology, Faculty of Odontology, University Complutense of Madrid, Madrid, Spain
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Ding Y, Wang L, Su K, Gao J, Li X, Cheng G. Horizontal bone augmentation and simultaneous implant placement using xenogeneic bone rings technique: a retrospective clinical study. Sci Rep 2021; 11:4947. [PMID: 33654142 PMCID: PMC7925558 DOI: 10.1038/s41598-021-84401-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2020] [Accepted: 02/15/2021] [Indexed: 11/09/2022] Open
Abstract
This study evaluated the use of bone ring technique with xenogeneic bone grafts in treating horizontal alveolar bone defects. In total, 11 patients in need of horizontal bone augmentation treatment before implant placement were included in this retrospective study. All patients received simultaneous bone augmentation surgery and implant placement with xenogeneic bone ring grafts. We evaluated the postoperative efficacy of the bone ring technique with xenogeneic bone grafts using radiographical and clinical parameters. Survival rates of implants were 100%. Cone-beam computed tomography revealed that the xenogeneic bone ring graft had significantly sufficient horizontal bone augmentation below the implant neck platform to 0 mm, 1 mm, 2 mm, and 3 mm. It could also provide an excellent peri-implant tissue condition during the 1-year follow-up after loading. The bone ring technique with xenogeneic bone ring graft could increase and maintain horizontal bone mass in the region of the implant neck platforms in serious horizontal bone defects.
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Affiliation(s)
- Yude Ding
- Department of Stomatology, Zhejiang Provincial People's Hospital, People's Hospital of Hangzhou Medical College, Hangzhou, 310014, Zhejiang, People's Republic of China
| | - Lianfei Wang
- Department of Stomatology of Bengbu Medical College, Bengbu, Anhui, People's Republic of China
| | - Kuiwei Su
- Department of Stomatology of Bengbu Medical College, Bengbu, Anhui, People's Republic of China
| | - Jinxing Gao
- Department of Stomatology, Zhejiang Provincial People's Hospital, People's Hospital of Hangzhou Medical College, Hangzhou, 310014, Zhejiang, People's Republic of China
| | - Xiao Li
- Department of Stomatology of Bengbu Medical College, Bengbu, Anhui, People's Republic of China
| | - Gang Cheng
- Department of Stomatology, Zhejiang Provincial People's Hospital, People's Hospital of Hangzhou Medical College, Hangzhou, 310014, Zhejiang, People's Republic of China.
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Katagiri H, El Tawil Y, Lang NP, Imber JC, Sculean A, Fujioka-Kobayashi M, Saulacic N. Collagen-Based Matrices for Osteoconduction: A Preclinical In Vivo Study. Biomedicines 2021; 9:biomedicines9020143. [PMID: 33540647 PMCID: PMC7913003 DOI: 10.3390/biomedicines9020143] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2021] [Accepted: 01/27/2021] [Indexed: 11/20/2022] Open
Abstract
The aim of this study was to evaluate the influence of additional hydroxyapatite (HA) in collagen-based matrices (CM) and membrane placement on bone formation in calvarial defects. Critical size defects in the calvaria of 16 New Zealand White Rabbits were randomly treated with CM or mineralized collagen-based matrices (mCM). Half of the sites were covered with a collagen membrane. Animals were euthanized after 12 weeks of healing. The samples were studied by micro-CT and histology. Newly formed lamellar bone was observed in all samples at the periphery of the defect. In the central areas, however, new bone composed of both woven and lamellar bone was embedded in the soft tissue. Samples treated with mCM showed more residual biomaterial and induced more small bony islands in the central areas of the defects than samples with CM. Nevertheless, a complete defect closure was not observed in any of the samples at 12 weeks. Membrane placement resulted in a decrease in bone density and height. Significant differences between the groups were revealed only between CM groups with and without membrane coverage for bone height in the central area of the defect. Neither mineralization of CM nor membrane placement improved the osteogenic capacity in this particular defect. Nevertheless, mineralisation influenced bone density without a membrane placement and bone volume underneath a membrane. CM may be used as a scaffold in bone regeneration procedures, without the need of a membrane coverage. Further preclinical studies are warrant to optimise the potential of mCM.
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Affiliation(s)
- Hiroki Katagiri
- Department of Cranio-Maxillofacial Surgery, Inselspital, Bern University Hospital, Faculty of Medicine, University of Berne, CH-3010 Berne, Switzerland; (H.K.); (Y.E.T.); (N.P.L.); (M.F.-K.)
- Advanced Research Center, The Nippon Dental University School of Life Dentistry at Niigata, Niigata 951-8580, Japan
| | - Yacine El Tawil
- Department of Cranio-Maxillofacial Surgery, Inselspital, Bern University Hospital, Faculty of Medicine, University of Berne, CH-3010 Berne, Switzerland; (H.K.); (Y.E.T.); (N.P.L.); (M.F.-K.)
| | - Niklaus P. Lang
- Department of Cranio-Maxillofacial Surgery, Inselspital, Bern University Hospital, Faculty of Medicine, University of Berne, CH-3010 Berne, Switzerland; (H.K.); (Y.E.T.); (N.P.L.); (M.F.-K.)
| | - Jean-Claude Imber
- Department of Periodontology, School of Dental Medicine, University of Berne, CH-3010 Berne, Switzerland; (J.-C.I.); (A.S.)
| | - Anton Sculean
- Department of Periodontology, School of Dental Medicine, University of Berne, CH-3010 Berne, Switzerland; (J.-C.I.); (A.S.)
| | - Masako Fujioka-Kobayashi
- Department of Cranio-Maxillofacial Surgery, Inselspital, Bern University Hospital, Faculty of Medicine, University of Berne, CH-3010 Berne, Switzerland; (H.K.); (Y.E.T.); (N.P.L.); (M.F.-K.)
| | - Nikola Saulacic
- Department of Cranio-Maxillofacial Surgery, Inselspital, Bern University Hospital, Faculty of Medicine, University of Berne, CH-3010 Berne, Switzerland; (H.K.); (Y.E.T.); (N.P.L.); (M.F.-K.)
- Correspondence: ; Tel.: +41-31-632-8764
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Lira RM, Sartoretto SC, da Silva Gouveia Pedrosa C, Calasans-Maia MD, Leite PE, Granjeiro JM. Is THP-1 viability affected by the crystallinity of nanostructured carbonated hydroxyapatites? J Biomed Mater Res A 2020; 109:1266-1274. [PMID: 33047463 DOI: 10.1002/jbm.a.37120] [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: 02/07/2020] [Revised: 10/04/2020] [Accepted: 10/09/2020] [Indexed: 11/06/2022]
Abstract
In daily clinical practice, there is a notable variety of synthetic bone substitute, with various resorption rates, different chemical and structural characteristics that influence on bone regeneration and are not suitable for every clinical use. New biomaterials based on nanotechnology have been developed to be bioabsorbable as new bone is formed. This study intends to evaluate THP-1 cell viability when exposed to extracts of unsintered nanostructured carbonated hydroxyapatite (cHA) microspheres processed at 5 and 37°C compared to sintered hydroxyapatite processed at 90°C. cHA shows, in previous studies, biocompatibility, and better bioabsorption rates, consequently, improve the deposition of new bone and tissue repair. The results demonstrated that the tested biomaterials did not activate inflammatory role through THP-1 cells and did not affect activated macrophages independently of their crystallinities, suggesting their safety and biocompatibility. These results are of fundamental importance for the advancement of research on smart materials, especially in what controls the effect of nanostructured cHA microspheres in the biological environment, seems to be a promising biomaterial in clinical application on regenerative medicine.
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Affiliation(s)
- Renata Moraes Lira
- Graduate Program in Dentistry, Fluminense Federal University, Niterói, Brazil
| | - Suelen Cristina Sartoretto
- Graduate Program in Dentistry, Fluminense Federal University, Niterói, Brazil.,Graduate Program in Dentistry, Veiga de Almeida University, Rio de Janeiro, Brazil.,Oral Surgery Department, Iguaçu University, Nova Iguaçu, Brazil
| | | | | | - Paulo Emílio Leite
- Laboratory of Ultrastructure and Cellular Biology Hertha Meyer, Rio de Janeiro Federal University, Rio de Janeiro, Brazil
| | - José Mauro Granjeiro
- Bioengineering Laboratory, National Institute of Metrology, Quality and Technology, Duque de Caxias, Brazil.,School of Dentistry, Fluminense Federal University, Niterói, Brazil
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Biomechanical and Biochemical Analyses of the Effects of Propranolol on the Osseointegration of Implants. J Craniofac Surg 2020; 32:1174-1176. [PMID: 32868723 DOI: 10.1097/scs.0000000000006959] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
Abstract
This study aimed to investigate the effects of systemic propranolol on the osseointegration of titanium implants. After the surgical insertion of titanium implants into the metaphyseal part of the tibiae of rats, the rats were randomly divided into three equal groups: the control (n = 8), propranolol dosage-1 (PRP-1) (n = 8), and propranolol dosage-2 (PRP-2) (n = 8) groups. In the control group, the rats received no further treatment during the 4-week experimental period after the surgery. After the surgical insertion of the implants, the rats in the PRP-1 and PRP-2 groups were given 5 mg/kg and 10 mg/kg propranolol, respectively, every 3 days for the 4-week experimental period. After the experimental period, the rats were euthanized. Blood sera were collected for biochemical analysis, and the implants and surrounding bone tissues were used for the biomechanical reverse torque analysis. One-way ANOVA and Tukey's honest significant difference test were used for statistical analysis. The student t-test was used to analyze the data obtained from the tests and the controls. There were no significant differences in the reverse torque analysis results and the biochemical parameters (alkaline phosphatase, calcium, and phosphorus) of the groups (P > 0.05). Alkaline phosphatase was, however, found to be higher in test animals compared to the controls (P < 0.05). Also, propranolol did not biomechanically affect the osseointegration of titanium implants, while alkaline phosphatase activity was higher in the test animals.
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Zhou T, Moriyama Y, Ayukawa Y, Rakhmatia YD, Zhou X, Hu J, Koyano K. Injectable Porous Bioresorbable Composite Containing Fluvastatin for Bone Augmentation. ACS Biomater Sci Eng 2019; 5:5422-5429. [DOI: 10.1021/acsbiomaterials.9b01045] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Tianren Zhou
- Section of Implant and Rehabilitative Dentistry, Division of Oral Rehabilitation, Faculty of Dental Science, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka 812-8582, Japan
| | - Yasuko Moriyama
- Section of Implant and Rehabilitative Dentistry, Division of Oral Rehabilitation, Faculty of Dental Science, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka 812-8582, Japan
| | - Yasunori Ayukawa
- Section of Implant and Rehabilitative Dentistry, Division of Oral Rehabilitation, Faculty of Dental Science, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka 812-8582, Japan
| | - Yunia Dwi Rakhmatia
- Section of Implant and Rehabilitative Dentistry, Division of Oral Rehabilitation, Faculty of Dental Science, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka 812-8582, Japan
| | - Xudiyang Zhou
- Section of Implant and Rehabilitative Dentistry, Division of Oral Rehabilitation, Faculty of Dental Science, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka 812-8582, Japan
| | - Jiangqi Hu
- Section of Implant and Rehabilitative Dentistry, Division of Oral Rehabilitation, Faculty of Dental Science, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka 812-8582, Japan
| | - Kiyoshi Koyano
- Section of Implant and Rehabilitative Dentistry, Division of Oral Rehabilitation, Faculty of Dental Science, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka 812-8582, Japan
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Pires TI, Paiva AADO, Ribeiro CG, De Carvalho MF, Vilela EM, Nogueira-Silva B, Assis NMSP. Uma atualização sobre biomateriais em implantodontia. HU REVISTA 2019. [DOI: 10.34019/1982-8047.2018.v44.13949] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
O processo alveolar é uma estrutura dente dependente que sofre alterações dimensionais após a exodontia. Defeitos ósseos resultantes prejudicam a colocação de implantes e o sucesso em longo prazo. Diversas técnicas cirúrgicas e biomateriais tem sido apresentados como opções terapêuticas para preservação e recuperação dos rebordos edêntulos. Assim, o objetivo desta revisão narrativa é evidenciar o estado atual dos biomateriais disponíveis bem como as possíveis perspectivas futuras. A utilização de biomateriais para cirurgias de reconstrução e manutenção de rebordo alveolar com sucesso é evidente. A impressão em 3D de estruturas biocompatíveis, fatores de crescimento, as DDMs, parafusos e membranas reabsorvíveis podem ser as perspectivas futuras.
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