隐形卡环法制作局部可摘义齿临床效果观察

目的：总结隐形卡环法制作局部可摘义齿的方法及临床效果。方法：采用铸造法制作卡环，固位点在基牙的近远中面，与基牙呈点状接触，对用该法制作局部可摘义齿的305例患者的临床资料进行总结。结果：305例患者随访6年，有295例口腔基牙完好，牙龈牙周情况良好，义齿摘戴自如，美观舒适，患者满意。结论：隐形卡环制作局部可摘义齿对义齿的固位及稳定无不良影响，省去了影响美观的颊侧卡环臂，是对传统义齿卡环设计观念的创新，制作简便，病人易于接受，临床效果好。

Clinical effect of removable partial denture prepared by Saddle-Lock hidden-clasp.

OBJECTIVE: To study the method for preparing removable partial denture using Saddle-Lock hidden-clasp and evaluate its clinical effect. METHOD: Casting process was adopted for the preparation of the clasp, which was fixed at the points on the mesial and distal surfaces of the abutment tooth. The clinical records of 305 patients treated with such removable partial dentures were reviewed. RESULTS: Within a follow-up period of 6 years, 295 of the 305 patients retained good abutment condition and were satisfied with the denture that was capable of easy wearing and removing. CONCLUSIONS: Removable partial denture made by Saddle-lock hidden-clasp exhibits good performance in fixation and stability. As an innovation of traditional design of partial denture clasp, it is simple to prepare and well received by the patients with good clinical effect.