患者女,10岁,(来学网)唇倾明显,舌舔牙习惯两年,检查后用舌习惯矫治器进行矫治,矫治器基托前缘应离开牙龈
  • A.
    (来学网)1~1.5mm
  • B.
    (来学网)1.5~2mm
  • C.
    (来学网)2~2.5mm
  • D.
    (来学网)3~4mm
  • E.
    (来学网)5~7mm