摘要
Kennedy Ⅱ类缺损为单侧远中游离缺失,为其设计的牙支持义齿对末端基牙均产生不同程度的远中向扭力。为保护基牙,提高义齿的效能,我们采用电测法评估PR Ⅰ卡与冷弯Ⅱ型卡两种固位卡环。结果表明,这两种固位卡环设计合理,对末端基牙所施的力基本趋于轴向,PRI卡环优于冷弯的Ⅱ型卡。
Two kinds of retainable clasps, FRI clasp and curved Ⅱ clasp, for kennedyⅡ classify were evaluated by electric measure of vertical load. The resultsindicated that the conduction of the force was axial. When function simply,the design of the tow denture was reasonable, It is observed that the emplyed forces on the abutments of FRI and curved clasp were different. These forcesconsisted of press are lend. On the abutment with FRI clasp, the axial pressis much more concentrated than the other one.
出处
《中国医科大学学报》
CAS
CSCD
1991年第1期58-60,共3页
Journal of China Medical University
