患者,男,(来学网)缺失,余留牙正常,可摘局部义齿修复,基牙
  1. 该义齿基牙常采用间隙卡环,其体部的弯制要求是
    A.
    (来学网)体部离开间隙卡沟0.5mm
    B.
    (来学网)体部离开间隙卡沟1mm
    C.
    (来学网)体部离开间隙卡沟1.5mm
    D.
    (来学网)体部离开间隙卡沟2mm
    E.
    (来学网)体部与间隙卡沟贴合
  2. 若基牙为三类导线,应采用下列哪类弯制卡环
    A.
    (来学网)正型卡环
    B.
    (来学网)环形卡环
    C.
    (来学网)上返卡环
    D.
    (来学网)下返卡环
    E.
    (来学网)双臂卡环
  3. 三年后基牙因松动而拔除,宜采用下列哪类卡环
    A.
    (来学网)双臂卡环
    B.
    (来学网)单臂卡环
    C.
    (来学网)对半卡环
    D.
    (来学网)正型卡环
    E.
    (来学网)下返卡环