This paper illustrated the characters about root canal morphology of mandibular premolars, including the formation, configurations, racial difference, classification and methods for study.
本文简要介绍下颌前磨牙多种解剖结构的形成、形态特点、人种差异、分型和研究方法。
Objective: To investigate the root and canal morphology of extracted mandibular premolars.
目的：研究离体下颌前磨牙的牙根及根管形态。
Objective To investigate the root and canal morphology of extracted maxillary second premolars.
目的观察上颌第二前磨牙的牙根及根管形态。
Objective to study the root canal system morphology and provide anatomic facts for treatment of dental disease.
目的了解根管的形态结构，为牙疾病治疗提供解剖学参考。
Objective to study the root canal system morphology and provide anatomic facts for treatment of dental disease.
目的了解根管的形态结构，为牙疾病治疗提供解剖学参考。
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