摘要
一个后磨牙分离残根以两个前磨牙修复效果理想，本研究旨在从理论上探讨这种修复方法的可行性。采取三维光弹应力分析法，将修复牙与正常牙在同等条件下进行应力切片、冻结和加载，应用正射和斜射相结合的方法测出修复牙和正常牙的六个应力分量，并将结果进行了对比。实验结果表明，总体上修复牙和正常牙应力基本相似，而修复牙的两个牙的邻校面处的应力稍大。
Restoring of two premolars replace a molar that was residual root of separating was nice.The feasibility of this method was studied in this paper.The specimen were frozen,sectioned and augmented powerfully in the same condition by means of three-dimensional photoelastic analysis and combination straight effluence with slanting effluence in order to test the six stresses of both restoring tooth and a normal one.The results showed that the two teeth were almost like on seress and the restoring tooth stress is larger on the border point. [WTHZ〗
出处
《广东牙病防治》
1997年第4期17-18,共2页
Journal of Dental Prevention and Treatment
关键词
三维光弹分析
残根
前磨牙
后磨牙
three-dimentional photoelastic analysis resdual root
