关键词: 牙合垂直距离, 面部解剖标志, Occlusal Vertical Dimension, Facial Feature

Abstract: Abstract: Objectives To explore the novel method to obtain the occlusal vertical dimension so as to find out the relationship between occlusal vertical dimension and marking points of facial hard and soft tissue. Method The study sample consisted of 100 participants, who were older than 50 and had stable occlusal relation. We overlapped the X-ray lateral radiographs and digital lateral photos with Photoshop, measured vertical dimension, the lengths and angles among facial hard and soft tissue marking points, and analyzed the relationship between lengths and angles among facial anatomical marking points and occlusal vertical distances. Result The mean value of occlusal vertical dimension was (62.83±6.11) mm, which was obviously related to age, but had no obvious relationship with gender. After the correlation test, we found that occlusal vertical dimension had strong correlations with several lengths among facial anatomical marking points, that they showed a certain linear relation, and that the mandibular plane angel was an important factor of the above mentioned correlation. Conclusion Facial anatomical marking points have certain referential value for obtaining occlusal vertical dimension clinically.