(来学网)前牙烤瓷熔附金属冠牙体预备时,唇面牙体组织应磨除
  • A.
    (来学网)0.5~1.0mm
  • B.
    (来学网)1.2~1.5mm
  • C.
    (来学网)1.6~1.8mm
  • D.
    (来学网)1.8~2.0mm
  • E.
    (来学网)2.0~2.5mm