固定义齿各部件三维有限元模型库的建立

The establishment of 3D-FE model Libraries for the elements of FPD

目的:建立固定义齿各部件三维有限元模型库。方法:在正常牙颌组织三维几何学模型、模型库的基础上,利用Powershape、Pro/E和Ansys5.5软件,根据天然牙牙冠模型建立基牙-固位体单元体,以及桥体单元体,在牙冠间隙中新建连接体单元体。结果:建立了固定义齿各组成部分的有限元模型库,包括固位体、桥体、连接体3个模型库82个单元体。结论:各类模型具有良好的几何学形态,力学模型组建过程快速、简便。

PURPOSE: To establish the 3D-FE model libraries for the elements of the FPD. METHODS: Based on the 3-D geometric model libraries of the normal stomatognathic system, using the software, such as Powershape,Pro/E and Ansys5.5, the models of abutments ,retainers and pontics were created according to the models of natural crowns. The models of connectors were established according to the sutures between the crowns. RESULTS:This study has established the FE model libraries for the elements of the FPD, including the retainers,pontics , and connectors, three kinds of libraries and 82 elements in all. CONCLUSION: The established models have a satisfied geometric configuration; the analysis models can be easily established and edited.