两种镍钛根管再治疗器械与System B携热器联合应用去除根管内充填物效果评价
량충얼태근관재치료기계여System B휴열기연합응용거제근관내충전물효과평개
Effectiveness of two nickel-titanium instruments for root canal retreatment in removing filling material in root canals with or without System B heat carrier tips in vitro
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