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全口义齿的假牙应排列在近似真牙的位置上。能做到此点,就可以从生物测定标准恢复有牙时唇颊的原来位置。如此制成的义齿外表自然而且功能良好。排上前牙时,中切牙的唇面应在腭乳头中点前约10毫米。如原来真牙前突者此数可略大,真牙内倾肖可略小。正确的唇位和形状,应该在取印模并使在模型上有足够的唇沟宽度时来确定,因当下唇无支持时,正确支持的上唇看起来就嫌太突。所以上唇有不够丰满的倾向。一般地说,上前牙应排成使其切缘与下唇微笑时的曲线一致,为便于排牙,可在(牙合)堤上划出微笑线。
Dentures dentures should be arranged in the approximate position of true teeth. When this is done, the original position of the cheek is restored from the biometric criteria. The denture thus made is natural and functional. Pai on the anterior teeth, the incisors lip face should be about 10 mm before the midpoint of the palate nipple. Such as the original number of true tooth protrusion can be slightly larger, slightly smaller than the true tooth incontinuous Xiao. The correct lip position and shape should be determined by taking the impression and having enough lip groove width on the model, since the properly supported upper lip looks too sharp when the lower lip is unsupported. So the upper lip is not full plump tendencies. In general, the upper teeth should be arranged so that their cut edges coincide with the curve of the lower lip when smiling. To facilitate tooth rowing, a smile line can be drawn on the occlusion.