目的：探讨牙科手术显微镜结合超声工作器械进行根管再治疗的临床应用效果。
Objective: To explore the use of dental operating microscope with ultrasonic instruments in root canal retreatment.
结论无菌护理、默契配合、器械管理、护患沟通是根管治疗术中根管充填的护理要点。
Conclusion the main points of nursing during canal obturation are the aseptic technique, skilled coordination, instrument management, communication between nurses and patients.
摘要根管侧穿和器械分离是根管治疗术中常见的并发症。
Abstract: root canal perforation and instrument separation are common complications of root canal therapy.
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