• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Indian Journal of Dental Research >Stress analysis at bone-implant interface of single- and two-implant-retained mandibular overdenture using three-dimensional finite element analysis
【24h】

Stress analysis at bone-implant interface of single- and two-implant-retained mandibular overdenture using three-dimensional finite element analysis

机译：利用三维有限元分析法对单种植体和两种植体固位的下颌覆盖义齿的种植体界面进行应力分析

获取原文
       
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Purpose: The purpose of this research was to compare stress distribution on the bone between single implant-retained and two-implant-retained mandibular overdentures using three-dimensional (3D) finite element analysis. Materials and Methods: Two 3D finite element models were designed. The first model included single implant-supported mandibular overdenture placed in the midline of the mandible while the second model included two-implant-supported mandibular overdenture placed in the intra-foramen region, retained by ball attachment of the same diameter. The bone was modeled on the D2 bone depending on the classification given by Misch. A computed tomography scan of the mandible was used to model the bone by plotting the key points on the graph and generating the identical key points on the ANSYS Software (ANSYS, Inc., USA). The implant was modeled using appropriate dimensions as provided by the manufacturer. Stresses were calculated based on the von Mises criteria. Results: Stresses produced in the hard bone (HB) and soft bone (SB) were higher in single implant-retained mandibular overdenture while stresses produced around the denture as well as implant were higher in two-implant-retained mandibular overdenture. Conclusion: Within the limitations of the study, it had been seen that stresses produced were the highest on HB and SB in single implant-retained mandibular overdenture while stresses produced across the denture as well as implant were the highest in two-implant-retained mandibular overdenture.
机译：目的：本研究的目的是使用三维（3D）有限元分析比较单个植入物固定和两个植入物固定的下颌覆盖义齿之间的应力分布。材料和方法：设计了两个3D有限元模型。第一个模型包括放置在下颌骨中线的单个植入物支撑的下颌覆盖义齿，而第二个模型包含放置在孔内区域的两个植入物支撑的下颌覆盖义齿，并通过相同直径的球附着物保持。根据Misch给出的分类，将骨骼建模为D2骨骼。下颌的计算机X线断层扫描用于通过在图形上绘制关键点并在ANSYS软件（ANSYS，Inc.，美国）上生成相同的关键点来对骨骼建模。使用制造商提供的适当尺寸对植入物进行建模。根据von Mises标准计算应力。结果：在单个种植体固位的下颌覆盖义齿中，硬骨（HB）和软骨（SB）产生的应力较高，而在两个种植体固位的下颌覆盖义齿中，义齿周围以及种植体产生的应力较高。结论：在该研究的局限性内，已发现在单个种植体固位的下颌覆盖义齿中，对HB和SB产生的应力最高，而在两个种植体固位的下颌义齿中，贯穿义齿和种植体产生的应力最高。覆盖义齿。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号