A 远中舌尖离开<img border="0" alt="" src="https://img.weimei168.com/uploads/upimg/20230804/12260232_0.gif">平面 B
颊尖离开<img border="0" alt="" src="https://img.weimei168.com/uploads/upimg/20230804/12260232_0_1.gif">平面 C
以上均对 D
牙颈部略向近中倾斜 E
近中舌尖排在<img border="0" alt="" src="https://img.weimei168.com/uploads/upimg/20230804/12260232_0_2.gif">平面上