The inci-dence of maxillary first premolar in mesial of occlusal is higher than in distal.
The inci-dence of maxillary first premolar in mesial of occlusal is higher than in distal.
上颌第一前磨牙Interstitial结节在面近中的发生率显著大于远中；
The inci-dence of maxillary first premolar in mesial of occlusal is higher than in distal.
上颌第一前磨牙Interstitial结节在面近中的发生率显著大于远中；