(来学网)患者,上颌中切牙近中切角缺损,咬合紧,采用PFM全冠修复时,其非贵金属基底冠厚度最低极限值为
  • 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