Pro/E的自适应功能在建立螺纹型牙种植体骨块三维有限元模型中的应用  

Self-adaptation Function of Pro/engineering Software in the Constructing 3-D FE Model of Different Thread Geometry of Dental Implant

作　　者：马攀[1] 李德华[1] 宋应亮[1] 李皓萍[1] 孔亮[1] 刘宝林[1] 黄达文[2] 姜惠娟[1] 

机构地区：[1]第四军医大学秦都口腔医院种植科,陕西西安710032 [2]兰州理工大学工程力学系

出　　处：《口腔医学研究》2005年第6期622-624,共3页Journal of Oral Science Research

基　　金：陕西省科技攻关课题[编号:2002K10-G8(04)]

摘　　要：目的:探讨利用Pro/E软件自适应功能建立包含不同螺纹形态、不同螺距牙种植体的下颌骨骨块的三维有限元模型的方法。为不同螺纹界面的力学分析,螺纹的优化设计提供分析平台。方法:使用pro/E软件建立包含不同螺纹形态、不同螺距的牙种植体的下颌骨骨块三维实体模型,导入ansys workbench9.0有限元分析软件中,进行单元划分、初始应力的验证分析,建立三维有限元模型。结果:螺纹角度、尺寸与设定相同,形状同真实螺纹完全一致,力学分析结果与文献报道一致。结论:探索了基于Pro/E软件自适应功能建立含有不同螺纹形态、不同螺距牙种植体的下颌骨骨块的三维有限元模型的方法,提高了建模的准确性,灵活性和速度,所建模型能够满足不同螺纹界面应力的力学分析的要求,也为螺纹的优化设计提供分析平台。Objective： To create 3 - D models of different thread geometries and pitches of dental implants for finite element analysis based on self- adaptation of pro/enginerring software. Methods： When used pro/enginerring software to create 3 - D models of dental implants which include different thread geometries and pitches, assembled every 3 - D model of thread dental implant to 3 - D model of mandible bone segment, and imported it to ansysis sofeware, then meshed the 3 - D implant - bone complexs. Results： The beginning and ending of simulant 3 - D thread were completely identical to the real thread. The angle and size of the thread was coincidence with the setting one. Conclusion ： 3 - D FE models of different thread geometries and pitches of dental implant based on self - adaptation of pro/engineer were created. The method enhanced the accurancy, flexibility and velocity in constructing a mode. This model could satisfy stress/strain analysis of differen implant - bone interface, and offer a platform for the optimum desigh of thread.

关 键 词：螺纹形态 牙种植体 三维有限元Pro/E 

分 类 号：R783[医药卫生—口腔医学]