A、息止<img alt="说明:01" src="http://admintk.100xuexi.com/UpLoadImage/2013-05-07/076bf8cf-77ac-4f31-a267-198abde905d0.jpg" width="14" height="14" />间隙
B、面中1/3高度
C、颌间距离
D、息止<img alt="说明:01" src="http://admintk.100xuexi.com/UpLoadImage/2013-05-07/076bf8cf-77ac-4f31-a267-198abde905d0.jpg" width="14" height="14" />位鼻底至颏底距离
E、息止颌位鼻底至颏底距离减去2～3mm