前牙具有切咬、辅助发音,维持面容等功能。因此,在前牙缺失的修复中,应注意前牙的这些功能特征,正确的恢复前牙的解剖形态只是恢复前牙切咬功能的一个方面。多年来,为了照顾前牙的上述特征,把固位体设计在两侧双尖区,目的是不让固位体的金属显露,使修复的义齿显得逼真、自然、大方。但是,这种双侧固位设计修复前牙缺 Anterior cut with bite, aided pronunciation, to maintain the face and other functions. Therefore, in the repair of missing anterior teeth, attention should be paid to these features of the anterior teeth, the correct recovery of the anatomy of the anterior teeth is only an aspect of restoration of anterior teeth incision function. Over the years, in order to take care of the above features of the anterior teeth, the retainers are designed on both sides of the double-pointed area so as to prevent the metal of the retainers from being exposed and make the prosthesis to be realistic, natural and generous. However, this double-sided design fixes the anterior tooth gap