口腔颌面外科杂志Issue(5)：364-369,6.DOI:10.3969/j.issn.1005-4979.2014.05.010
种植体直径-长度比的三维有限元应力分析
Finite Element Analysis of Different Diameter to Length Ratio in Dental Implants
高健 1赵守亮 2周成杰1
作者信息
- 1. 同济大学口腔医学院牙体牙髓教研室，口腔生物医学及转化医学实验室，上海 200072
- 2. 天津医科大学口腔医院牙体牙髓科，天津 300070
- 折叠
摘要
Abstract
[Abstrat] Objective: The aim of this study was to discuss the methodology of selecting implant with continuous changes of diameter and length. Methods: The Pro/engineering software was used to created 3-D models of dental implants with different diameters (3 mm~6 mm) and length (7 mm~16 mm), being assembled to 3-D models of mandible bone segments, which were imported into ANSYS finite element analysis software and meshed to create finite models. The values of dis-placement and Von-Mises stress of implant and bone were obtained, after models were loaded with vertical force and oblique load. Results: After models were loaded both by vertical and oblique loads, with the increase of implant diameter and length, the values of each evaluation indicators were significantly reduced (60%~80%). Effect of implant diameter was more significant (≈90%), the implant length was related to the types of loading (vertical force: 18%~60%;oblique load: <7%). The ratio construed by diameter and length was used for the selection of dental implants when safety factor was de-termined. Conclusion: Increasing the implant diameter and length can significantly reduce the displacement of implant and stress of bone tissue. Introduction of methodology of diameter-length ratio establishes a new practical and effective method for implants selection in clinical practices.关键词
种植体直径/种植体长度/直径长度比/相关度/有限元分析Key words
dental implants diameter/dental implants length/diameter-length ratio/relevancy/finite element analysis分类
医药卫生引用本文复制引用
高健,赵守亮,周成杰..种植体直径-长度比的三维有限元应力分析[J].口腔颌面外科杂志,2014,(5):364-369,6.
