目的:回顾性研究分析全瓷高嵌体用于后牙根管治疗后牙体修复的远期效果,并比较前磨牙和磨牙的临床效果.方法:回顾性分析2014年1月～2017年9月于本院口腔科就诊的237例患者的261颗患牙.按照牙位分为前磨牙组(n=65)和磨牙组(n=196).采用世界牙科联盟评价标准(FDI World Dental Federation)对修复体进行评价,观察并分析5～10年高嵌体修复成功率、修复体存留率、修复体替换率以及基牙生存率,并对比两组患牙的疗效.结果:前磨牙组与磨牙组整体修复成功率为87.36％(228/261),修复体存留率为91.19％(238/261),修复体替换率8.81％(23/261),基牙生存率为98.08％(256/261).前磨牙组修复成功率、修复体存留率、修复体替换率、基牙生存率及临床修复效果与磨牙组比较差异无统计学意义(P＞0.05).前磨牙组修复体邻面解剖形态的维持优于磨牙组(P＜0.05).结论:高嵌体用于后牙根管治疗术后牙体修复,可以获得较理想的远期修复效果,前磨牙较磨牙邻接关系维持好.
Study on the long-term effect of repairing defective posterior teeth after root canal treatment with onlay
Objective:To analyze the long-term effect of all porcelain onlays used in posterior root canal treatment for posterior tooth restoration in the retrospective study,and compare the clinical effect of treatment on premolars and molars.Methods:The study included 237 patients(261 teeth)who visited the Department of Stomatology of the author's hospital from January 2014 to September 2017.The teeth were divided into premolar group(n=65)and molar group(n=196).The FDI World Dental Federation evaluation criteia was used to evaluate the prosthesis,the restoration success rate,restoration re-tention rate,restoration replacement rate and abutment survival rate over a period of 5～10 years were analyzed,and the effi-cacy of the two groups of affected were compared.Results:The overall restoration success rate was 87.36％(228/261),the restoration retention rate was 91.19％(238/261),the replacement rate was 8.81％(23/261),and the abutment survival rate was 98.08％(256/261)in the premolars and molars groups.There was no significant difference in the success rate,retention rate,prosthesis replacement rate,abutment survival rate and clinical restoration effect between the premolar group and the mo-lar group(P＞0.05).The adjacent anatomical morphology of the restoration in the premolar group was better than that in the molar group(P＜0.05).Conclusion:According to the results of this study,the application of onlays in the restoration of teeth after posterior root canal therapy can obtain a ideal long-term restoration results,and the adjacency relationship of premolars is maintained better than that of molars.
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