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目的:评价根管显微镜下应用超声技术取出根管内异物的临床效果。方法:选取因根管内异物就诊的患者39例。在根管显微镜下采用超声根管锉、超声工作尖制备距离异物的直线通路,将根管内金属异物取出。结果:39例根管金属异物成功取出33例并完成根管治疗,异物取出率84.61%。结论:应用根管显微镜和超声技术取出根管内金属异物的方法安全有效。
OBJECTIVE: To evaluate the clinical effect of removing foreign bodies in the root canal using ultrasonic technique under root canal microscope. Methods: Thirty-nine patients were selected for treatment of foreign bodies in the root canal. In the root canal microscope using ultrasonic root canal file, ultrasonic tip to prepare a straight line from the foreign body pathways, will remove the metal foreign body root canal. Results: Totally 33 cases of root canal metal foreign bodies were successfully removed and the root canal was treated. The removal rate of foreign body was 84.61%. Conclusion: It is safe and effective to remove the metal foreign body in root canal by root canal microscope and ultrasonic technique.