(来学网)正常情况下牙槽嵴顶距釉牙骨质界的距离,在X线片上通常为
  • A.
    (来学网)<3mm
  • B.
    (来学网)<2.5mm
  • C.
    (来学网)<2mm
  • D.
    (来学网)<1.5mm
  • E.
    (来学网)<1mm
正确答案:
C