目的 探讨口腔手术显微镜联合超声技术在根管再治疗中的应用效果,为根管治疗失败的预防和再治疗提供依据。方法 选择2017-07至2020-12在武警特色医学中心口腔科接受显微根管再治疗病例98例,98颗患牙(共计142个根管),记录根管治疗失败的原因,在口腔手术显微镜下使用超声器械对患牙进行根管再治疗,6个月后随访,统计成功率。结果 98颗患牙中78颗治疗成功,总体成功率79.6%。根管遗漏患牙的成功率为92.9%(13/14);根管钙化患牙的成功率为65.4%(17/26);器械分离患牙的成功率为75.0%(12/16);髓腔穿孔患牙的成功率为85.0%(17/20);根尖敞开患牙的成功率为100%(10/10);根管台阶患牙的成功率为75.0%(9/12)。结论 口腔手术显微镜联合超声技术在根管再治疗中的应用效果好,治疗成功率高。
Abstract
Objective To explore the use of dental operating microscope with ultrasonic technique in root canal retreatment,provide a basis for the privention and retreatment of failure of root canal therapy.Methods 98 teeth (142 canals) with initial treatment failure from department of stamtology of Characteristic Medical Center of PAP were chosen from July 2017 to December 2020. And reasons for initial treatment failure were recorded .These canals were treated with ultrasonic technique under dental operating microscope. The success rates were calculated after 6 months.Results 78 teeth were successfully managed with a success rate of 79.6%.The success rates of each category of teeth with initial treatment failure were:92.9%(13/14) for missing root canals;65.4%(17/26)for calcified root canals;75.0%(12/16)for canals blocked by instrument fragments;85.0%(17/20)for canals with perforation.100%(10/10)for canals with open canal system;75.0%(9/12)for ledged canals.Conclusions The use of dental operating microscope with ultrasonic technique is proved effective in root canal retreatment.
关键词
口腔手术显微镜 /
超声技术 /
根管再治疗 /
分离器械 /
髓腔穿孔
Key words
dental operating microscope /
ultrasonic technique /
root canal retreatment /
instrument fragments /
perforation
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