残根残冠的保存治疗与修复的临床效果分析

目的探讨残根残冠经根管治疗与冠修复后的临床治疗效果。方法选择2008～2010年在门诊收治的274颗残根残冠为研究对象，经根管治疗后行桩核冠修复，随访观察6个月-3年，分析其临床疗效。结果经6个月～3年随访，274颗患牙中244颗修复成功（89．1％），30颗牙失败（10．9％），其中16颗牙根出现不同程度的松动，8颗出现龈瘘，4颗因牙周炎拔牙，2颗核桩因继发龋脱落。结论在严格选择适应证的前提下，残根、残冠经完善根管治疗与冠修复后可达到满意的临床治疗效果。

Clinical evaluation of residual crowns and roots restored with post-core crowns following root canal treatment

Objective To evaluate the clinical effect of residual crowns and roots restored with post-core crowns after root canal treatment.Methods A total of 274 residual crowns and roots were included in this study.Root canal treatment was first conducted and then post-core crowns were fabricated in all the cases.The follow-up period was from 6 months to 3 years,and clinical effects were evaluated.Results Success was 244 teeth（89.1%）;fail was 30 teeth（10.9%）,The roots were loose in 16 cases;apical infection appeared in 8cases;4 roots were extracted due to serious periodontal disease;2post-core was lost because of secondary caries）.Conclusion Residutal crown and root can be reserved by complete root canal treatment combined with post-core crowns if the indication is strictly chosen.