目的：观察联合应用镍钛根扩仪和根管超声仪在治疗后磨牙弯曲根管的临床效果。
Objective: To observe the clinical effect of endodontic treatment on curved root canal of molar with Niti rotary instrument enlargement and ultrasonic root canal irrigation.
目的：观察联合应用镍钛根扩仪和根管超声仪在治疗后磨牙弯曲根管的临床效果。
Objective: To observe the clinical effect of endodontic treatment on curved root canal of molar with Niti rotary instrument enlargement and ultrasonic root canal irrigation.
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