显微超声技术处理阻塞根管的效果评价

Evaluation of the use of dental operating microscope and ultrasonic instruments in the management of blocked canals

目的探讨根管显微镜联合超声器械处理阻塞根管的临床疗效。方法选取因根管钙化、器械折断、塑化物和台阶等造成的阻塞根管130个为研究对象,在根管显微镜下使用专用超声器械进行根管再通畅,统计成功率。结果 130个阻塞根管中,成功再通畅的根管有114个,总成功率为87.7%。钙化根管疏通的成功率为86.4%,塑化根管疏通的成功率为81.8%,根管内台阶去除的成功率81.0%,根管中下段折断器械取出的成功率为95.3%。结论根管显微镜和超声器械的使用,为处理阻塞根管提供了行之有效的方法。

Objective To evaluate the clinical outcome of dental operating microscope and ultrasonic instruments in treating blocked canals. Methods The etiology of canal blockage included calcification,broken instruments,resinifying materials,and ledge etc. One hundred and thirty blocked canals were negotiated by using ultrasonic tips under dental operating microscope. The success rates were calculated. Results One hundred and fourteen blocked canals were successfully managed with a success rate of 87.7%. The success rates of each category of the blocked canals were 86.4% for calcified canals,81.8% for canals blocked by resinifying therapy,81.0% for ledged canal,and 95.3% for broken instruments in the apical two thirds of root canal,respectively. Conclusions The use of DOM and ultrasonic instruments is proved to be an effective way in the management of blocked canals.