根管治疗术后三年疗效评价及影响因素分析

A retrospective analysis of the effects of endodontic treatment and its influencing factors

目的:评价根管治疗疗效及其影响因素。方法:回访根管治疗后3年临床状况和尖周X线片表现,对根管治疗的疗效及可能的影响因素进行分析。结果:695个患牙根管治疗后3年的治愈率为75.1%,有咀嚼功能占96.0%。单因素分析发现,前牙、活髓牙、术前尖周组织正常、牙体修复完好的患牙治愈率较高;回归分析表明,无尖周病变,适充及牙体修复完好的患牙比术前有尖周病变、欠充及根充物暴露的患牙治愈率分别高2倍、3倍和1.6倍。结论:患牙有无根尖周病变、根管充填质量和牙体修复的完好程度均可对疗效产生影响。

AIM： To assess the clinical outcome of root canal therapy （RCT）and the factors that might influence the outcome of RCT. METHODS： A total of 695 teeth from 357 patients was retrospectively studied three years after endodontic treatment. Pre - and intra - operative informations were collected from the original patient re- cords. The post - operative sign or symptom, periapical status and coronal restoration integrity were examined 3 years after obturation. Data were subjected to bivariate and multivariate analysis. RESULTS： The cure rate for 695 teeth was 75.1%, 96.0% of which was considered to be functional. The tooth group, pre - operative pulp and perapical status, quality of root filling and integrity of coronal restoration were revealed by means of bivariate analysis to exert a significant influence on treatment outcome. The logistic analysis indicated that the odds on the cure in the teeth with pre - operative periapical radiolucency, underfilling and ＂open＂ coronal restoration were significantly lower by 2 folds ,3 folds and 1.6 folds than that in their counterparts, respectively. CONCLUSION： The pre -operative periapical status, quality of root filling and the integrity of coronal restoration are main predictors of outcome in RCT.