(来学网)全口义齿模型上做上颌后堤区处理时,用雕刻刀在颤动线处刻划的切迹深度一般为
  • A.
    (来学网)不超过0.5mm
  • B.
    (来学网)1~1.5mm
  • C.
    (来学网)2~2.5mm
  • D.
    (来学网)3mm
  • E.
    (来学网)4mm