前腭杆离开龈缘应A.8mmB.至少6mmC.4~6mmD.3~4mmE.1.5~2mm
前腭杆离开龈缘应
A.8mm
B.至少6mm
C.4~6mm
D.3~4mm
E.1.5~2mm
相关考题:
前腭杆的前缘应A.止于上前牙舌隆突上B.止于上前牙舌侧龈缘C.离开上前牙舌侧龈缘至少4mmD.离开上前牙舌侧龈缘至少6mmE.离开上前牙舌侧龈缘至少8mm
前腭杆离开龈缘应
A.8mm
B.至少6mm
C.4~6mm
D.3~4mm
E.1.5~2mm