A study on the interrelations between subjective and objective indicator based on three-dimensional measurement in facial evaluation

应用三维数字立体摄影技术，研究上颌全口义齿的基托体积和垂直尺寸对上颌无牙颌患者面部形态的影响。在摘除义齿凸缘的情况下，观察所有受试者与无义齿凸缘区域对应的单侧凹面。而当颊突肿胀3 mm时，所有受试者双侧面部均可观察到与义齿凸缘区域相对应的隆起，改变垂直方向时，鼻翼周围形态无明显变化。另一方面，有人认为，鼻下点、上唇点和唇点周围的形态可能会随着垂直尺寸的变化而改变。

The purpose of this study was to investigate the influence of denture base volume and vertical dimension of maxillary complete denture on facial morphology in individuals with maxillary edentulous by using three-dimensional digital stereophotogrammetry.In the case of removing the denture flange, unilateral concave surface corresponding to the area without denture flange was observed in all subjects. On the other hand, when the buccal flanges were swollen 3 mm, the bulge corresponding to swollen area of denture flange was observed in all subjects faces bilaterally.When changing the vertical dimension, the morphological change surrounding the ala of nose was not observed. On the other hand, it was suggested that the morphologies surrounding the subnasale, labrale superius, and cheilion points had the potential to be changed with a change in the vertical dimension.