题目内容:
正常牙冠表面釉质最厚处厚度为 ( )
A.1~2mm B.3~3.5mm C.2.5~3mm D.2~2.5mm E.3.5~4mm
参考答案:
正常牙冠表面釉质最厚处厚度为 ( )
A.1~2mm B.3~3.5mm C.2.5~3mm D.2~2.5mm E.3.5~4mm