题目内容
替牙期牙尖错颌的特征有
2021-11-16
A.纵曲线和;^曲线不明显
B.左右中切牙间在萌出初期常有间隙
C.在切牙区和尖牙区出现间隙
D.上下颌第一磨牙为近中关系
E.侧切牙根部向远中,冠部向近中
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