A、平衡<img src="http://admintk.100xuexi.com/UpLoadImage/2013-05-07/0eaa4d44-348d-4257-8fe9-fd9a6712e077.jpg" width="13" height="16" /> 是全口义齿在正中<img src="http://admintk.100xuexi.com/UpLoadImage/2013-05-07/0eaa4d44-348d-4257-8fe9-fd9a6712e077.jpg" width="13" height="16" /> 、非正中<img src="http://admintk.100xuexi.com/UpLoadImage/2013-05-07/0eaa4d44-348d-4257-8fe9-fd9a6712e077.jpg" width="13" height="16" /> 运动时，上下相关的人工牙均同时接触的<img src="http://admintk.100xuexi.com/UpLoadImage/2013-05-07/0eaa4d44-348d-4257-8fe9-fd9a6712e077.jpg" width="13" height="16" /> 关系
B、正中<img src="http://admintk.100xuexi.com/UpLoadImage/2013-05-07/0eaa4d44-348d-4257-8fe9-fd9a6712e077.jpg" width="13" height="16" /> 平衡是指在正中<img src="http://admintk.100xuexi.com/UpLoadImage/2013-05-07/3bbd67d0-4306-4fa4-b588-81231989dec5.jpg" width="13" height="16" /> 位时，上下颌人工牙<img src="http://admintk.100xuexi.com/UpLoadImage/2013-05-07/0eaa4d44-348d-4257-8fe9-fd9a6712e077.jpg" width="13" height="16" /> 面有最大面积的、均匀的接触，而无咬合障碍
C、前伸<img src="http://admintk.100xuexi.com/UpLoadImage/2013-05-07/0eaa4d44-348d-4257-8fe9-fd9a6712e077.jpg" width="13" height="16" /> 平衡，最少应有三点接触，即上下前牙及左右两侧最后磨牙的接触，后牙的接触点愈向近中愈好
D、侧<img src="http://admintk.100xuexi.com/UpLoadImage/2013-05-07/0eaa4d44-348d-4257-8fe9-fd9a6712e077.jpg" width="13" height="16" /> 平衡是指下颌向一侧做咬合运动时，工作侧和非工作侧牙尖均有接触
E、以上均是