A、牙尖顶高出<img src="http://admintk.100xuexi.com/UpLoadImage/2013-05-07/3bbd67d0-4306-4fa4-b588-81231989dec5.jpg" width="13" height="16" />平面约1mm
B、与上颌牙形成浅的覆<img src="http://admintk.100xuexi.com/UpLoadImage/2013-05-07/3bbd67d0-4306-4fa4-b588-81231989dec5.jpg" width="13" height="16" />、覆盖关系
C、颈部向远中和唇侧倾斜
D、下尖牙的远中斜坡与上尖牙的远中斜坡相对
E、牙冠的旋转度与<img src="http://admintk.100xuexi.com/UpLoadImage/2013-05-07/3bbd67d0-4306-4fa4-b588-81231989dec5.jpg" width="13" height="16" />堤唇面弧度一致