牙科手术显微镜用于探查上颌第一恒磨牙近颊根第二根管口的诊断性试验
아과수술현미경용우탐사상합제일항마아근협근제이근관구적진단성시험
Diagnostic Test Study of Dental Operating Microscope Used for Locating the Second Mesiobuccal Canal Orifice in Maxillary First Molars
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