肩台及凹槽边缘对全瓷冠边缘密合度和强度影响的研究进展  

Effects of shoulder and chamfer designs on the marginal discrepancy and fracture resistance of all ceramic crowns

作　　者：陈莹晖 于皓[2] 

机构地区：[1]福建医科大学口腔医学院,硕士生福建350002 [2]福建医科大学附属口腔医院口腔修复科,副教授副主任医师福建350002

出　　处：《口腔颌面修复学杂志》2018年第1期55-58,共4页Chinese Journal of Prosthodontics

基　　金：福建省高校新世纪优秀人才支持计划(项目编号:2016B033)

摘　　要：肩台及凹槽边缘被广泛应用于全瓷冠的牙体预备。肩台边缘自金属烤瓷修复体时代便开始在临床上应用,获得了良好的效果,但牙体磨切量相对较大,与微创修复的理念存在一定冲突。凹槽边缘理论上可少磨除牙体组织,但其对修复体边缘密合度和强度的影响还存在争议。因此,本文通过比较肩台、凹槽这两种边缘设计对全瓷冠边缘密合度和强度的影响,为临床合理选择全瓷冠的边缘形态提供理论依据。Shoulder and Chamfer margins have been widely applied in the all-ceramic crowns. This article aimed to review the effects of marginal designs on marginal discrepancy and fracture resistance of all-ceramic crowns. Based on the current literatures, it shows that both chamfer and shoulder provide a clinically acceptable marginal discrepancy and fracture resistance. Comparing with shoulder margin, chamfer preparation is more conservative and could be recommended in daily clinical practice.

关 键 词：边缘设计 全瓷冠 边缘密合度 强度 

分 类 号：R783.3[医药卫生—口腔医学]