Methods Gold deposition porcelain crown on 68 cases of patients with missing teeth to repair and satisfaction survey and analyze the survey results.
方法：采用金沉积烤瓷冠对68例前牙缺失的患者进行修复并对修复满意度进行调查，分析统计结果。
Objective: to explore the prosthetic design and procedure of residual crown with complete root canal imperforation so as to solve the clinical problem of such cases.
目的：探讨根管完全闭锁钙化残冠、残根的临床修复设计与方法，为修复临床对这类病例提供解决方案。
Results: 207 cases were crown fractures, while 23 cases were root fractures.
结果：本组病例各种类型冠折207例，根折23例。
The number of patient-led litigation cases is on the increase and the majority involve crown and bridge work.
一些病人的领导诉讼案件正在增加，其中大多数涉及冠桥工作。
Methods Among 27 cases who perform cosmetic prosthesis for anterior tooth after crown lengthening, there are 16 cases with post crown, 11 cases with comprehensive prosthesis.
方法：对27例行牙冠延长术的患者进行常规的前牙美容修复，其中16例采用单纯桩冠修复，11例采用综合法进行美容修复。
Results: Only two cases among all 89 patients occurred falling off post crown.
本组89例病人中仅2例病人出现桩冠脱落现象。
Methods the proper cases were selected to be ligated with wire, pulp extirpation, peridental therapy and crown repair in conservative treatment.
方法选择合适病例，采用钢丝结扎，根管治疗和牙周治疗、全冠修复等多种方法，对磨牙纵折予以保守治疗。
Methods the proper cases were selected to be ligated with wire, pulp extirpation, peridental therapy and crown repair in conservative treatment.
方法选择合适病例，采用钢丝结扎，根管治疗和牙周治疗、全冠修复等多种方法，对磨牙纵折予以保守治疗。
应用推荐