Dipayan Bhattacharya, A A Ponnanna, Ranganatha Rao K Jingade, Subhabrata Maiti, Nitesh Rai, Muralidhar Gopalkrishna
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Two types of loads 100N and 125N were applied vertically using universal testing machines in the premolar and molar regions. The loads on the implants beneath the cast partial denture were measured by physical stress analysis using a microstrain gauge.</p><p><strong>Statistical analysis used: </strong>A comparison of maximum stress observed at the premolar versus molar regions due to the application of the 100N and 125N loads was done using the Mann-Whitney U-test.</p><p><strong>Results: </strong>In physical stress analysis, obtained results were statistically analyzed, and the result was statistically not significant (P = 0.435 at 100N and P = 0.718 at 125N) in positional changes of implant.</p><p><strong>Conclusion: </strong>In the current study, the statistical analysis of physical stress revealed no significant differences in stress values between the loadings at the premolar and molar regions. This suggests that the implant can be placed in either the premolar or molar region based on the availability of bone without affecting stress distribution.</p>","PeriodicalId":22669,"journal":{"name":"The Journal of Indian Prosthodontic Society","volume":"24 1","pages":"82-87"},"PeriodicalIF":1.0000,"publicationDate":"2024-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10896312/pdf/","citationCount":"0","resultStr":"{\"title\":\"An in vitro assessment of optimizing implant positions in bilateral distal extension implant-assisted removable partial dentures: A microstress analysis.\",\"authors\":\"Dipayan Bhattacharya, A A Ponnanna, Ranganatha Rao K Jingade, Subhabrata Maiti, Nitesh Rai, Muralidhar Gopalkrishna\",\"doi\":\"10.4103/jips.jips_388_23\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p><strong>Aim: </strong>The aim of this study was to analyze and compare the stress distribution on dental implants in various positions when used with implant-assisted removable partial dentures.</p><p><strong>Settings and design: </strong>This was an in vitro study.</p><p><strong>Materials and methods: </strong>A model representing a mandibular bilateral partially edentulous condition, with missing premolars and molars, was fabricated using epoxy resin. Two implants of similar diameter measuring 4.0 mm × 10 mm (Dentium, Korea) were inserted in the second molar and the second premolar region on either side of the model for comparing the biomechanical effect of various implant locations. Two types of loads 100N and 125N were applied vertically using universal testing machines in the premolar and molar regions. The loads on the implants beneath the cast partial denture were measured by physical stress analysis using a microstrain gauge.</p><p><strong>Statistical analysis used: </strong>A comparison of maximum stress observed at the premolar versus molar regions due to the application of the 100N and 125N loads was done using the Mann-Whitney U-test.</p><p><strong>Results: </strong>In physical stress analysis, obtained results were statistically analyzed, and the result was statistically not significant (P = 0.435 at 100N and P = 0.718 at 125N) in positional changes of implant.</p><p><strong>Conclusion: </strong>In the current study, the statistical analysis of physical stress revealed no significant differences in stress values between the loadings at the premolar and molar regions. 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引用次数: 0
摘要
目的:本研究旨在分析和比较与种植体辅助活动局部义齿一起使用时,种植体在不同位置的应力分布:这是一项体外研究:使用环氧树脂制作了一个下颌双侧部分缺牙、前磨牙和臼齿缺失的模型。在模型两侧的第二磨牙和第二前磨牙区域分别植入两个直径为 4.0 毫米 × 10 毫米(Dentium,韩国)的类似种植体,以比较不同种植体位置的生物力学效应。使用万能试验机在前磨牙和臼齿区垂直施加 100N 和 125N 两种载荷。通过使用微应变计进行物理应力分析,测量了铸造局部义齿下种植体的负荷:使用 Mann-Whitney U 检验法比较了前磨牙和磨牙区域在施加 100N 和 125N 负载时观察到的最大应力:在物理应力分析中,对所获得的结果进行了统计分析,结果显示种植体位置变化的统计学意义不显著(100N 时 P = 0.435,125N 时 P = 0.718):在本次研究中,物理应力统计分析显示,前磨牙和臼齿区域的应力值没有明显差异。这表明种植体可以根据牙槽骨的可用性放置在前磨牙或磨牙区域,而不会影响应力分布。
An in vitro assessment of optimizing implant positions in bilateral distal extension implant-assisted removable partial dentures: A microstress analysis.
Aim: The aim of this study was to analyze and compare the stress distribution on dental implants in various positions when used with implant-assisted removable partial dentures.
Settings and design: This was an in vitro study.
Materials and methods: A model representing a mandibular bilateral partially edentulous condition, with missing premolars and molars, was fabricated using epoxy resin. Two implants of similar diameter measuring 4.0 mm × 10 mm (Dentium, Korea) were inserted in the second molar and the second premolar region on either side of the model for comparing the biomechanical effect of various implant locations. Two types of loads 100N and 125N were applied vertically using universal testing machines in the premolar and molar regions. The loads on the implants beneath the cast partial denture were measured by physical stress analysis using a microstrain gauge.
Statistical analysis used: A comparison of maximum stress observed at the premolar versus molar regions due to the application of the 100N and 125N loads was done using the Mann-Whitney U-test.
Results: In physical stress analysis, obtained results were statistically analyzed, and the result was statistically not significant (P = 0.435 at 100N and P = 0.718 at 125N) in positional changes of implant.
Conclusion: In the current study, the statistical analysis of physical stress revealed no significant differences in stress values between the loadings at the premolar and molar regions. This suggests that the implant can be placed in either the premolar or molar region based on the availability of bone without affecting stress distribution.