Implant Dentistry最新文献

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The Effect of One-Abutment at One-Time on Marginal Bone Loss Around Implants Placed in Healed Bone: A Systematic Review of Human Studies. 一次性单基牙对愈合骨种植体周围边缘骨丢失的影响:人体研究的系统回顾。
3区 医学
Implant Dentistry Pub Date : 2019-12-01 DOI: 10.1097/ID.0000000000000931
V. Perrotti, D. Zhang, Andrew Liang, Jonathan Wang, A. Quaranta
{"title":"The Effect of One-Abutment at One-Time on Marginal Bone Loss Around Implants Placed in Healed Bone: A Systematic Review of Human Studies.","authors":"V. Perrotti, D. Zhang, Andrew Liang, Jonathan Wang, A. Quaranta","doi":"10.1097/ID.0000000000000931","DOIUrl":"https://doi.org/10.1097/ID.0000000000000931","url":null,"abstract":"OBJECTIVES\u0000The primary aim of the present article was to review the effect and the clinical significance of abutment dis- and reconnection on the peri-implant marginal bone levels.\u0000\u0000\u0000MATERIALS AND METHODS\u0000English articles published from 2009 to April 2019 were identified on the MEDLINE, Cochrane Library, and PubMed databases, according to the PRISMA guidelines. Comparative in vivo studies on humans were included.\u0000\u0000\u0000RESULTS\u0000A total of 4 studies with different levels of bias were included in this review. A significant heterogeneity of the reported data was observed, which limited the comparison of the findings. The only parameter that was homogenous throughout all 4 studies was the marginal bone level measurement.\u0000\u0000\u0000CONCLUSION\u0000Within the limitations of the present review, it can be suggested that minimizing the number of abutment dis- and reconnections would be beneficial to ensure minimal disruption to the peri-implant tissue and marginal bone level. However, the clinical significance of the marginal bone level changes is still inconclusive.","PeriodicalId":13309,"journal":{"name":"Implant Dentistry","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1097/ID.0000000000000931","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41665444","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 11
Long-Term Outcomes of Tooth-Implant-Supported Rehabilitation of Periodontally Compromised and Treated Patients Refusing Bone Grafting Surgical Therapies. 拒绝植骨手术治疗的牙周受损患者的长期康复效果。
3区 医学
Implant Dentistry Pub Date : 2019-12-01 DOI: 10.1097/ID.0000000000000847
Renzo Guarnieri, Stefano Ippoliti
{"title":"Long-Term Outcomes of Tooth-Implant-Supported Rehabilitation of Periodontally Compromised and Treated Patients Refusing Bone Grafting Surgical Therapies.","authors":"Renzo Guarnieri,&nbsp;Stefano Ippoliti","doi":"10.1097/ID.0000000000000847","DOIUrl":"https://doi.org/10.1097/ID.0000000000000847","url":null,"abstract":"<p><strong>Objective: </strong>To evaluate the long-term incidence of complications in abutment teeth and dental implants in periodontally treated and maintained patients, refusing bone grafting surgical therapies, rehabilitated with full-arch telescopic-retained retrievable prostheses (TRPs) and full-arch fixed prosthesis (FPs), both supported by teeth-implants combination.</p><p><strong>Materials and methods: </strong>After active periodontal therapy, 18 patients were rehabilitated with full-arch TRPs, whereas 17 patients were rehabilitated with full-arch FPs. Patients were annually evaluated for technical and/or biological failures/complications.</p><p><strong>Results: </strong>During the 15-year observation period, 6 of 164 (3.6%) implants failed and 19 of 233 teeth were extracted (9.2%) in the TRPs group, whereas 6 of 152 (3.9%) implants failed and 23 of 221 (10.4%) abutment teeth were extracted in the FPs group. Differences in implant failures and abutment teeth loss between the 2 groups were not statistically significant. In both the groups, Cox regressions identified significant difference (P < 0.05) for mean initial bone loss, aggressive periodontitis, and smoking, as factors contributing to tooth loss and implant failures in general.</p><p><strong>Conclusion: </strong>In periodontally treated patients, refusing bone grafting surgical therapies, rehabilitated with full-arch TRPs and full-arch fixed prostheses, both supported by teeth-implants connection, high survival rates can be expected if regular supportive periodontal therapy had been performed.</p>","PeriodicalId":13309,"journal":{"name":"Implant Dentistry","volume":"28 6","pages":"528-536"},"PeriodicalIF":0.0,"publicationDate":"2019-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1097/ID.0000000000000847","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"37346190","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 7
Alveolar Ridge Preservation Using Autologous Demineralized Tooth Matrix and Platelet-Rich Fibrin Versus Platelet-Rich Fibrin Alone: A Split-Mouth Randomized Controlled Clinical Trial. 使用自体脱矿牙基质和富血小板纤维蛋白与单独使用富血小板纤维蛋白保存牙槽嵴:一项裂口随机对照临床试验
3区 医学
Implant Dentistry Pub Date : 2019-10-01 DOI: 10.1097/ID.0000000000000918
Warisara Ouyyamwongs, Narit Leepong, Srisurang Suttapreyasri
{"title":"Alveolar Ridge Preservation Using Autologous Demineralized Tooth Matrix and Platelet-Rich Fibrin Versus Platelet-Rich Fibrin Alone: A Split-Mouth Randomized Controlled Clinical Trial.","authors":"Warisara Ouyyamwongs,&nbsp;Narit Leepong,&nbsp;Srisurang Suttapreyasri","doi":"10.1097/ID.0000000000000918","DOIUrl":"https://doi.org/10.1097/ID.0000000000000918","url":null,"abstract":"<p><strong>Objective: </strong>To assess the potential of using autologous demineralized tooth matrix (aDTM) in combination with platelet-rich fibrin (PRF) membrane (aDTM/PRF) or PRF membrane alone (control) to preserve the ridge dimension and facilitate bone healing after tooth extraction.</p><p><strong>Materials and methods: </strong>Forty premolar sockets were assigned to either the aDTM/PRF or control group. Horizontal and vertical ridge changes were evaluated at the baseline 2, 4, 6, and 8 weeks using cast-based and periapical radiographs.</p><p><strong>Results: </strong>aDTM was well tolerated in all sites without incidences of postoperative complication. The change in horizontal ridge width was significantly greater in the control compared with the aDTM/PRF group. The overall vertical marginal bone resorption on the mesial, distal, and central site in the aDTM/PRF group was not statistically different from the control group. During the first 6 weeks, the bone healing density in the aDTM/PRF group was significantly higher than that of the control group, then it converged at week 8.</p><p><strong>Conclusion: </strong>Application of aDTM with PRF membrane is useful for ridge preservation by reducing the horizontal ridge collapse and promoting bone healing as shown clinically and radiographically.</p>","PeriodicalId":13309,"journal":{"name":"Implant Dentistry","volume":"28 5","pages":"455-462"},"PeriodicalIF":0.0,"publicationDate":"2019-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1097/ID.0000000000000918","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"37325940","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 6
Tooth-to-Implant-Supported Fixed Partial Denture: A Comprehensive Overview of Systematic Reviews. 牙对种植体支持的固定局部义齿:系统综述的综合概述。
3区 医学
Implant Dentistry Pub Date : 2019-10-01 DOI: 10.1097/ID.0000000000000901
Miriam Ting, Robert J Faulkner, David P Donatelli, Jon B Suzuki
{"title":"Tooth-to-Implant-Supported Fixed Partial Denture: A Comprehensive Overview of Systematic Reviews.","authors":"Miriam Ting,&nbsp;Robert J Faulkner,&nbsp;David P Donatelli,&nbsp;Jon B Suzuki","doi":"10.1097/ID.0000000000000901","DOIUrl":"https://doi.org/10.1097/ID.0000000000000901","url":null,"abstract":"<p><strong>Objectives: </strong>Tooth-to-implant-connected prostheses have been described as a possible treatment option for patients with long-span edentulous situations that were not conducive for placement of an adequate number of supporting implants. In this comprehensive overview of systematic reviews, the incidence of complications and the long-term survival rates of tooth-to-implant-supported fixed partial dentures (FPDs) were evaluated to determine whether it is a viable treatment.</p><p><strong>Materials and methods: </strong>A systematic search of 5 electronic databases was conducted for systematic reviews and meta-analyses of tooth-to-implant-supported FPDs up to January 2017. The articles were AMSTAR rated for methodological quality, and low-quality articles were eliminated.</p><p><strong>Results: </strong>The initial search yielded 369 reviews in PubMed, 248 in Web of Science, 49 in EMBASE, 63 in Cochrane Library, and 27 in Google Scholar. After removal of duplicates and after full-text analysis, 5 were selected for the overview.</p><p><strong>Conclusions: </strong>Within the limitations of this overview, it was concluded that (1) the 10-year survival rates for tooth-to-implant FPDs were lower than the 5-year survival rates, (2) the tooth-to-implant FPDs' survival was lower than the individual abutment tooth or implant supporting it, (3) the biological and technical complications were more at 10 years compared with 5 years, and (4) the intrusion of the abutment teeth was more in the nonrigid connection FPDs than the rigid connection FPDs. Therefore, tooth-to-implant FPDs are a viable option but should be considered secondary to other available options with higher long-term survival rates and lower complications.</p>","PeriodicalId":13309,"journal":{"name":"Implant Dentistry","volume":"28 5","pages":"490-499"},"PeriodicalIF":0.0,"publicationDate":"2019-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1097/ID.0000000000000901","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"37295025","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 5
Effect of Implant-Abutment Connection Type on Bone Around Dental Implants in Long-Term Observation: Internal Cone Versus Internal Hex. 长期观察种植体-基台连接方式对种植体周围骨的影响:内锥体与内六角。
3区 医学
Implant Dentistry Pub Date : 2019-10-01 DOI: 10.1097/ID.0000000000000905
Adam Szyszkowski, Marcin Kozakiewicz
{"title":"Effect of Implant-Abutment Connection Type on Bone Around Dental Implants in Long-Term Observation: Internal Cone Versus Internal Hex.","authors":"Adam Szyszkowski,&nbsp;Marcin Kozakiewicz","doi":"10.1097/ID.0000000000000905","DOIUrl":"https://doi.org/10.1097/ID.0000000000000905","url":null,"abstract":"<p><strong>Purpose: </strong>The purpose of this study was to evaluate the influence of the implant-abutment connection type on the bone level around dental implants in long-term observation and the survival rate for the different types of implant-abutment connections.</p><p><strong>Materials and methods: </strong>Two groups of implants made of titanium grade 23 alloy and with sandblasted and acid-etched (SLA) surface were included in the study: (a) the internal hex implant-abutment connection group (480 SPI dental implants; Alpha-Bio Tec, Petach Tikwa, Israel, 184 patients) and (b) the internal cone implant-abutment connection group (60 C1 dental implants; MIS Implant Technologies, Shlomi, Israel, 34 patients). Certain inclusion and exclusion criteria were applied. Marginal bone loss (MBL) around the dental implants was measured in intraoral radiographs taken with parallel technique with a film holder and by bite recording index. X-rays were performed at the moment of functional loading, and at 12, 24, 36, and 60 months after loading. The digital analysis was conducted using Dental Studio 2.0 computer software.</p><p><strong>Results: </strong>Average MBL was significantly lower in the conical connection compared with internal hex group-0.68 ± 0.59 versus 0.99 ± 0.89 mm (12 months), 0.78 ± 0.80 versus 1.12 ± 1.00 mm (24 months), 0.83 ± 0.87 versus 1.22 ± 1.03 mm (36 months), and 0.96 ± 1.02 versus 1.30 ± 1.15 mm (60 months after loading). Both groups of implants achieved a 100% survival rate.</p><p><strong>Conclusion: </strong>The internal cone connection reduced bone resorption compared with the internal hex. Both groups of implants had a 100% survival rate.</p>","PeriodicalId":13309,"journal":{"name":"Implant Dentistry","volume":"28 5","pages":"430-436"},"PeriodicalIF":0.0,"publicationDate":"2019-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1097/ID.0000000000000905","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"37325941","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 11
Radiological and Histomorphometric Outcomes of Homologous Bone Graft in Postextractive Implant Sites: A 6-Year Retrospective Analysis. 同源骨移植在拔牙后植入部位的放射学和组织形态学结果:6年回顾性分析。
3区 医学
Implant Dentistry Pub Date : 2019-10-01 DOI: 10.1097/ID.0000000000000920
Domenico Baldi, Paolo Pesce, Bruno Musante, Francesco Pera, Ezio Fulcheri, Filomena Romano, Maria Menini
{"title":"Radiological and Histomorphometric Outcomes of Homologous Bone Graft in Postextractive Implant Sites: A 6-Year Retrospective Analysis.","authors":"Domenico Baldi,&nbsp;Paolo Pesce,&nbsp;Bruno Musante,&nbsp;Francesco Pera,&nbsp;Ezio Fulcheri,&nbsp;Filomena Romano,&nbsp;Maria Menini","doi":"10.1097/ID.0000000000000920","DOIUrl":"https://doi.org/10.1097/ID.0000000000000920","url":null,"abstract":"<p><strong>Objectives: </strong>The aim was to investigate the in vivo efficacy of a cancellous particulate allograft bone in the regeneration of postextractive atrophic sites.</p><p><strong>Material and methods: </strong>Ten patients were selected, and after a minimally invasive extraction of the teeth (T0), a cone beam computed tomography was performed (T1). Seven days after extraction, Puros cancellous particulate homologous graft was inserted into the elected sites together with a membrane (T2). After 4 months, a cone beam computed tomography of the sites was performed (T3). After 5 months, samples of the regenerated sites were taken contextually to implant insertion (T4). The samples were histologically and histomorphometrically analyzed. Intraoral periapical radiographs were accomplished at T4 and at the 6-year follow-up appointment (T5).</p><p><strong>Results: </strong>The mean vertical bone augmentation was of 4.1 mm in the lower jaw and of 3.35 mm in the maxilla at T3 appointment. The mean horizontal bone augmentation in the lower jaw was 2.02 and 2.15 mm in the maxilla. At T4, the mean total bone was 60.01% and the mature bone was 98.41. At the 6-year follow-up visit, the mean periimplant bone resorption was 0.14 mm (range 0-0.5 mm).</p><p><strong>Conclusions: </strong>Cancellous particulate allograft bone demonstrated excellent bone regeneration behavior both in terms of quantity and quality, and stable results over a 6-year period.</p><p><strong>Clinical relevance: </strong>Cancellous allograft bone can be successfully used to regenerate atrophic sites.</p>","PeriodicalId":13309,"journal":{"name":"Implant Dentistry","volume":"28 5","pages":"472-477"},"PeriodicalIF":0.0,"publicationDate":"2019-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1097/ID.0000000000000920","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"37355789","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 5
Maxillary Sinusitis Associated With Peri-implantitis at Sinus Floor Augmented Sites: Case Series. 上颌鼻窦炎伴种植体周围炎在窦底增强部位:病例系列。
3区 医学
Implant Dentistry Pub Date : 2019-10-01 DOI: 10.1097/ID.0000000000000922
Won-Bae Park, Ji-Young Han, Se-Lim Oh
{"title":"Maxillary Sinusitis Associated With Peri-implantitis at Sinus Floor Augmented Sites: Case Series.","authors":"Won-Bae Park,&nbsp;Ji-Young Han,&nbsp;Se-Lim Oh","doi":"10.1097/ID.0000000000000922","DOIUrl":"https://doi.org/10.1097/ID.0000000000000922","url":null,"abstract":"<p><strong>Purpose: </strong>The purpose of this case series was to investigate treatment outcomes of maxillary sinusitis associated with peri-implantitis at sinus floor augmented sites for a 3-year follow-up.</p><p><strong>Materials and methods: </strong>Eighteen implants in 8 patients diagnosed with maxillary sinusitis associated with peri-implantitis were reviewed. Four patients were treated with implant removal and antibiotics, and 4 patients were treated with implant removal, the modified Caldwell-Luc operation (CLOP), and antibiotics. Seven patients, who had 7 survived implants, were followed up to 3 years after treatment. The characteristics between failed and survived implants were compared. Radiographic parameters of survived implants were analyzed using the Friedman test.</p><p><strong>Results: </strong>Eleven failed implants from 8 patients exhibited approximately 10-mm pocket depths and mobility at diagnosis. Seven survived implants from 7 patients exhibited no significant changes in crestal bone loss at the facial side for 3 years after the treatments. Sinus mucosal thickening was significantly reduced during the 3-year follow-up after the treatments.</p><p><strong>Conclusion: </strong>The progression of peri-implantitis in sinus floor augmented sites may lead to maxillary sinusitis. To confirm the efficacy of the intraoral approaches, such as the modified CLOP, systematic clinical studies with a large sample size and a long-term follow-up should be conducted.</p>","PeriodicalId":13309,"journal":{"name":"Implant Dentistry","volume":"28 5","pages":"484-489"},"PeriodicalIF":0.0,"publicationDate":"2019-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1097/ID.0000000000000922","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"37346189","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 7
Concentrate Growth Factors Regulate Osteogenic Dysfunction of MC3T3-E1 Cells Induced by High Glucose Through PI3K/Akt Signaling Pathway. 浓缩生长因子通过PI3K/Akt信号通路调控高糖诱导的MC3T3-E1细胞成骨功能障碍
3区 医学
Implant Dentistry Pub Date : 2019-10-01 DOI: 10.1097/ID.0000000000000921
Kai Dong, Pengjie Hao, Wenjuan Zhou, Zhonghao Liu
{"title":"Concentrate Growth Factors Regulate Osteogenic Dysfunction of MC3T3-E1 Cells Induced by High Glucose Through PI3K/Akt Signaling Pathway.","authors":"Kai Dong,&nbsp;Pengjie Hao,&nbsp;Wenjuan Zhou,&nbsp;Zhonghao Liu","doi":"10.1097/ID.0000000000000921","DOIUrl":"https://doi.org/10.1097/ID.0000000000000921","url":null,"abstract":"<p><strong>Introduction: </strong>The aim of this study is to investigate the effects of Concentrate Growth Factors Extract (CGF-e) on the proliferation and osteogenic differentiation of MC3T3-E1 cells under high glucose condition.</p><p><strong>Materials and methods: </strong>MC3T3-E1 cells were divided into 4 groups including normal glucose (5.5-mM) group (control), high glucose (25.5-mM) group, normal glucose + CGF-e group, and high glucose + CGF-e group. The proliferation, osteogenic differentiation and mineralization of osteoblasts were evaluated, respectively, by the 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyl tetrazolium bromide (MTT) assay, cytoskeleton analysis, alkaline phosphatase activity assay, alizarin red staining, and real-time polymerase chain reaction. Western blots analysis was used to explore the role of PI3K/Akt pathway.</p><p><strong>Results: </strong>The viability, osteogenic differentiation, and mineralization of MC3T3-E1 cells were significantly decreased by high glucose. All observed osteogenic dysfunction were inhibited by CGF-e. Moreover, the PI3K/Akt pathway was activated by CGF-e.</p><p><strong>Conclusions: </strong>It was concluded that the soluble factors released by CGF could significantly attenuate high glucose-mediated MC3T3-E1 cells osteogenic dysfunction through the PI3K/Akt pathway.</p>","PeriodicalId":13309,"journal":{"name":"Implant Dentistry","volume":"28 5","pages":"478-483"},"PeriodicalIF":0.0,"publicationDate":"2019-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1097/ID.0000000000000921","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"37370852","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 4
Thermal Testing of Titanium Implants and the Surrounding Ex-Vivo Tissue Irradiated With 9.3um CO2 Laser. 9.3um CO2激光辐照钛植入体及其周围离体组织的热测试。
3区 医学
Implant Dentistry Pub Date : 2019-10-01 DOI: 10.1097/ID.0000000000000923
S. Froum, Roni Cantor-Balan, C. Kerbage, S. Froum
{"title":"Thermal Testing of Titanium Implants and the Surrounding Ex-Vivo Tissue Irradiated With 9.3um CO2 Laser.","authors":"S. Froum, Roni Cantor-Balan, C. Kerbage, S. Froum","doi":"10.1097/ID.0000000000000923","DOIUrl":"https://doi.org/10.1097/ID.0000000000000923","url":null,"abstract":"PURPOSE\u0000To measure the temperature rise and surface damage of titanium dental implants and the surrounding tissue in a pig jaw during 9.3-μm carbon dioxide (CO2) laser irradiation at various durations of time.\u0000\u0000\u0000MATERIALS AND METHODS\u0000Thermal analysis tests were performed on 12 implants with the same surface. Twelve implants mounted alone or in pig jaws were laser-irradiated with a 9.3-μm CO2 laser using 3 different power settings. The temperature of the implant body and the proximal tissues was measured with a J-Type Thermocouple after being laser-irradiated with 3 different power setting for 30, 60 seconds, and 2 minutes. Scanning electron microscope (SEM) and digital microscope images were also taken of the all the implants before and after laser irradiation to detect the presence or absence of surface damage.\u0000\u0000\u0000RESULTS\u0000Temperature analysis showed that in all cases the implant and the proximal tissue temperatures remained around the start temperatures of the implant and tissues with fluctuations of ±3°C but never reached the upper threshold of 44°C, the temperature at which thermal injury to bone has been reported. Digital and SEM images that were taken of the implants showed an absence of surface damage at the cutting speed of 20% (0.7 W); however, cutting speeds of 30% to 100% (1.0-4.2 W) did yield surface damage.\u0000\u0000\u0000CONCLUSIONS\u0000Laser irradiation of titanium implant surfaces using a 9.3-μm carbon dioxide laser with an average power of 0.7 W showed no increase in thermal temperature of the implant body and tissue temperatures as well as no evidence of implant surface damage.","PeriodicalId":13309,"journal":{"name":"Implant Dentistry","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1097/ID.0000000000000923","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42251494","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Effect of 5 Popular Disinfection Methods on Microflora of Laboratory: Customized Implant Abutments. 5种常用消毒方法对实验室菌群的影响:定制种植基台。
3区 医学
Implant Dentistry Pub Date : 2019-10-01 DOI: 10.1097/ID.0000000000000906
Ali Homayouni, A. Bahador, M. Moharrami, M. Pourhajibagher, Amir Alireza Rasouli-Ghahroudi, M. Alikhasi
{"title":"Effect of 5 Popular Disinfection Methods on Microflora of Laboratory: Customized Implant Abutments.","authors":"Ali Homayouni, A. Bahador, M. Moharrami, M. Pourhajibagher, Amir Alireza Rasouli-Ghahroudi, M. Alikhasi","doi":"10.1097/ID.0000000000000906","DOIUrl":"https://doi.org/10.1097/ID.0000000000000906","url":null,"abstract":"PURPOSE\u0000To compare the efficacy of 5 different decontamination methods of titanium abutments and to assess their possible effects on surface roughness of titanium.\u0000\u0000\u0000MATERIALS AND METHODS\u0000Micrococcus luteus, Acinetobacter baumannii, Enterococcus faecalis, and Candida albicans were cocultured to form a multispecies biofilm on 18 titanium discs. In another group, Bacillus subtilis, a spore-forming species, was cultivated on another set of 18 titanium discs. Each group was further divided into 5 test groups: high-pressure steam cleaning (4 Mpa, 5 seconds), NaOCl (1% active chlorine, 5 minutes), H2O2 (3%, 5 minutes), GaAlAs laser (810 nm, CW, 1 W, 400-μm fiber, 1-mm distance, 1 minute), Er:YAG laser (2940 nm, pulse mode, 100 mJ, 10 Hz, 230-μm noncontact handpiece, 4-mm distance, 50/50% air/water, 1 minute), and a control group of no treatment. After each decontamination procedure, the remaining microbial load was reported as colony-forming unit/disc. To evaluate the effect of each treatment on titanium discs, surface roughness parameters including Sa, Sq, Ssk, Sku, Sal, and Sdr were measured at 6 points of each disc using an atomic force microscope.\u0000\u0000\u0000RESULTS\u0000Complete disinfection was achieved using high-pressure steam, NaOCl, H2O2, and Er:YAG laser. GaAlAs laser was able to reduce microbial count over 90%. Sa and Sq parameters were only increased significantly in diluted NaOCl group in comparison with control group, whereas Sdr was increased significantly in both absolute and diluted NaOCl groups.\u0000\u0000\u0000CONCLUSION\u0000All the methods could decontaminate machined titanium surfaces, although complete microbial elimination was not achieved by diode laser. None of the treatments altered surface roughness significantly, except for sodium hypochlorite (NaOCl).","PeriodicalId":13309,"journal":{"name":"Implant Dentistry","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1097/ID.0000000000000906","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43683889","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 3
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