(来学网)牙周附着水平是指
  • A.
    (来学网)龈缘到袋底的距离
  • B.
    (来学网)釉牙骨质界到袋底的距离
  • C.
    (来学网)龈缘到釉牙骨质界的距离
  • D.
    (来学网)釉牙骨质界到根分歧的距离
  • E.
    (来学网)结合上皮到牙槽嵴顶的距离
正确答案:
B