本文通过总结2011-06～2013-07收治的6例同一根管内多种折断器械的病例，着重探讨在根管显微镜下采用超声技术建立直线通路、侧支旁路，震荡冲洗，如何预防根管侧穿，器械二次折断、脱落等问题，为临床医师在处理类似情况提供参考及借鉴。%This paper summarizes 6 cases with multi-fracture of dental instruments in tooth root canal treated in our hospital from June 2011 to July 2013,the creation of a straight pathway,establishment of collateral bypass ,ultrasonic vibration,prevention of root perforation and secondary instrument fracture were emphasized,a reference in dealing with similar situations was provided.
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