目的评价根管超声冲洗对根管预备术后反应及根充后侧支根管充填率的影响。
Ultrasonic irrigation and syringe irrigation were applied respectively in each group during the root canal preparation.
目的探讨超声冲洗对根管治疗失败再治疗临床疗效的作用。
Objective To evaluate the clinical efficacy of ultrasonic irrigation in re-treatment the failure in endodontic treatment.
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