基于逆向工程技术的后牙嵌体的数字化个性设计  

Individual Character Design in the Inlays Based on Reverse Engineering

作　　者：韩景芸[1] 费仁元[1] 李彦生[1] 褚国民[1] 

机构地区：[1]北京工业大学机械工程与应用电子技术学院,北京100022

出　　处：《机械科学与技术》2005年第3期315-318,共4页Mechanical Science and Technology for Aerospace Engineering

摘　　要：以逆向工程技术为基础,对牙合嵌体的数字化个性设计展开探讨根据各部分结构特点和功能要求,以三角网格代替曲面拼接,反求组织面,保证了精度,提高了效率;以基于特征线的UV曲面重构牙合面、轴面,恢复了生理特征。对密合度这个关注焦点,本文以边缘线作为各部分造型的边界约束,实现了无缝配合。设计出的嵌体不仅符合生理解剖的一般规律,也满足了个性特征及咬合规律,达到临床医学要求。An individual character design method for inlay is presented. According to the features of the original clouds, the polygon surface instead of NURBS surfaces are created for basal surface, which can save a lot of time and increase the accuracy. The B-spline surface that is defined by a rectangular network of specified U and V curves are used to reconstruct occlusal and interproximal surface. The method shows that inlays are designed to be beautiful, smooth and continuous and the bite and adjacent contact area are normal.

关 键 词：嵌体 逆向工程 STL UV B样条曲面 

分 类 号：TP391[自动化与计算机技术—计算机应用技术]