口腔颌面外科杂志2011，Vol.21Issue(6)：414-417,4.DOI:10.3969/j.issn.1005-4979.2011.06.008
种植体长度对天然牙-种植体联合修复体应力影响的研究
Relation of Implants Length to Stress Distribution of Tooth/Implant Supported Prostheses
卫剑颖 1聂文忠 2黄远亮3
作者信息
- 1. 同济大学口腔医学院口腔颌面外科,上海200072
- 2. 上海市浦东新区东明社区卫生服务中心口腔科,上海200130
- 3. 上海应用技术学院机械与自动化工程学院,上海200235
- 折叠
摘要
Abstract
Objective: The aim of this study was to clarify whether the stress distribution differences in the superstructure of implants/tooth supported fixed partial denture (FPD) are related to implant length. Methods: A three-dimensional finite element model was established and loading of vertical force or buccolingual force were tested. The stress distribution of the superstructure of FPD supported by tooth-implant system with implants of different length, were analyzed by CT scanning. Results: The stress distribution values of implants decreased with the increasing of implants length. The peak value of the stress distribution in abutments with buccolingual loads was 4~6 times as much as it with vertical loads. Conclusion: Mechanic complication of superstructure could be reduced by increasing implants length. So, the further improvements of press resistance of abutments and reduce oblique loads are available.关键词
应力分析/三维有限元/牙种植体/固定桥/Von Mises应力Key words
stress analysis/ three-dimensional finite element/ dental implants/ fixed bridge/ Von Mises stress分类
医药卫生引用本文复制引用
卫剑颖,聂文忠,黄远亮..种植体长度对天然牙-种植体联合修复体应力影响的研究[J].口腔颌面外科杂志,2011,21(6):414-417,4.
