结论：下颌第二磨牙的C形根管在根管的数量和形态有较大变化。
Conclusions: C-shaped canals in mandibular second molars vary in canal number and shape.
目的探索预备下颌第二磨牙C形根管的有效方法。
Objective To explore the effective method for C-shaped root canal preparation.
目的探索预备下颌第二磨牙C形根管的有效方法。
Objective To explore the effective method for C-shaped root canal preparation.
应用推荐