A.牙冠最突點(diǎn)上 B.牙冠最突點(diǎn)下1.0mm C.牙冠最突點(diǎn)下0.5mm D.牙冠最突點(diǎn)上0.5mm E.牙冠最突點(diǎn)上1.0mm
A.<0.1mm B.0.1~0.2mm C.0.3mm D.0.4mm E.>0.4mm
A.上下唇輕輕閉攏 B.微笑 C.大笑 D.大張口 E.張口大笑