患者,男,(来学网)缺失,在基牙上设计RPI卡环组,"I"型杆式卡环末端进入倒凹区深度正确的是
  • A.
    (来学网)0.1mm
  • B.
    (来学网)0.2mm
  • C.
    (来学网)0.3mm
  • D.
    (来学网)0.4mm
  • E.
    (来学网)0.5mm