(来学网)放置冠内附着体的基牙牙体预备成箱型,制备的空间应比附着体深
  • A.
    (来学网)0.2mm
  • B.
    (来学网)0.3mm
  • C.
    (来学网)0.4mm
  • D.
    (来学网)0.5mm
  • E.
    (来学网)0.6mm