(来学网)关于基托的边缘,下列哪项叙述不正确
  • A.
    (来学网)上颌前弓区应尽量延长
  • B.
    (来学网)后缘伸至颊间隙
  • C.
    (来学网)后部止于腭小凹前2mm
  • D.
    (来学网)唇颊系带区应避开
  • E.
    (来学网)后部止于腭小凹后2mm