根管内器械分离后行旁路根管治疗的临床评价  

Clinical evaluation on the root canal therapy bypassing intracanal separated instruments

作　　者：黎远皋[1] 王继朝[1] 周欣[1] 

机构地区：[1]北京大学第三医院口腔科,北京100083

出　　处：《华西口腔医学杂志》2008年第6期626-629,共4页West China Journal of Stomatology

摘　　要：目的观察根管内器械分离患牙行旁路根管治疗后的临床疗效。方法选择32颗根管内器械分离不能完全取出的患牙为试验组,采用从分离器械旁建立通路到达根尖的方法进行根管预备和充填;同时选择器械分离后不能取出也不能行旁路根管治疗的患牙13颗为对照组,未发生器械分离的常规根管治疗患牙30颗为常规治疗组。观察3组患牙2年后的临床疗效并进行评价。结果试验组2年后回访牙数25颗,根管治疗成功率为80.00%;对照组2年后回访牙数11颗,成功率为36.36%;2组失败病例均为器械分离发生在根尖1/3处的患牙。常规治疗组2年后回访牙数22颗,成功率为90.91%。结论旁路根管治疗法是器械分离后进行根管治疗的一种可行和有效的方法。Objective To study and evaluate the clinical effect of root canal therapy bypassing intracanal separated instruments. Methods 32 teeth were selected as the test group, from which the intracanal separated instruments couldn＇t be taken out, adopted the method of root canal preparation and obturation bypassing broken instruments. Meanwhile, 13 teeth were selected as the control group, in which the fractured instruments couldn＇t be taken out from root canal, and not be cured bypassing broken instruments. 30 teeth were selected as the conventional therapy group, in which the instruments were not fractured, the routine root canal therapy were adopted. The clinical efficacy of three groups were observed and evaluated through periapical index and clinical examination two years later. Results After two years, 25 teeth were followed up in test group, the success rate of root canal therapy was 80.00%; 11 teeth were followed up in control group, the success rate of root canal therapy was 36.36%. All of the failed cases in two groups were the teeth with broken instruments in tip of root canal. In conventional therapy group, 22 teeth were followed up, and the success rate of root canal therapy was 90.91%. Conclusion Root canal therapy bypassing intracanal separated instruments is a feasible and effective method in treating the teeth with broken instruments.

关 键 词：器械分离 根管治疗 疗效评价 

分 类 号：R781.05[医药卫生—口腔医学]