A 一般要求排列成浅覆盖、浅覆<img border="0" alt="" src="https://img.weimei168.com/uploads/upimg/20230804/12260293_0.gif"> B
正中<img border="0" alt="" src="https://img.weimei168.com/uploads/upimg/20230804/12260293_0_1.gif">时前牙不接触 C
切导和<img border="0" alt="" src="https://img.weimei168.com/uploads/upimg/20230804/12260293_0_2.gif">平面的交角不能超过15度 D
参考上下颌骨的位置关系 E
前伸和侧方运动时,下牙沿上牙斜面至少1mm的范围内能自由滑动