双变量正畸微种植体骨块三维有限元模型的建立  

Three finite element models of bivariate microscrew anchorage by self-adaptation function of CAD software.

作　　者：房伟[1] 丁寅[1] 郭向红[2] 王琪[1] 孔亮[1] 陈曦[3] 

机构地区：[1]第四军医大学口腔医学院正畸科,陕西西安710032 [2]第四军医大学口腔医学院正畸,科陕西西安710032 [3]西安交通大学第一医学院口腔科

出　　处：《临床口腔医学杂志》2007年第8期459-461,共3页Journal of Clinical Stomatology

摘　　要：目的:利用CAD/CAE软件的自适应和无缝参数传递功能,建立可自动改变直径和长度的微种植体下颌骨骨块三维有限元模型,为微种植体的生物力学分析、优化设计和选择提供快捷灵活的平台。方法:利用Pro/E软件,根据微种植体相关参数以及松质骨、皮质骨的几何外形,建立可以自适应改变的微种植体骨块实体模型,设定微种植体的直径(D)和长度(L)为变量,变化范围分别为D(0.5mm～1.0mm),L(5.0mm～13.0mm),导入Ansys workbench软件中,进行单元划分及模型准确性检测。结果:建立了可以自适应改变微种植体参数的下颌骨骨块三维有限元模型。结论:应用CAD/CAE软件的自适应和无缝参数传递功能,可以建立复杂的微种植体以及下颌骨骨块装配体的三维有限元模型。Objective： To Construct 3D models of different microscrew anchorage for finite element analysis by selfadaptation function of CAD / CAE software .Method： 3-D models of microscrew anchorage different diameter and length were constructed by Pro/E software. 3D implant model and 3D mandible bone segment models were assembled. The diameter （D） and length （L） were set as parameters. D ranged from 0.5mm to 1.0mm, L ranged from 5.0mm to 13.0ram. To evaluate the assembled 3-D anchorage-bone complexes, they were imported to Ansys workbench software. Result： Finite element models of different diameter and length anchorage-bone complexes were rebuilt. Conclusion： Self-adaptation function of CAD software was a more accurate and more convenient method in anchorage finite element analysis.

关 键 词：微种植体 支抗 三维有限元 CAD/CAE 

分 类 号：R783.5[医药卫生—口腔医学]