300例不同年龄段有牙颌人群上唇软组织侧貌的锥形束CT三维测量分析
Analysis of upper lip profile features in 300 dentate subjects of different ages via three-dimensional measurement of cone beam computed tomography
作者：章婷婷,胡常红,彭燕,周文翘,张慧聪,刘蝶
Author：Zhang Tingting,Hu Changhong,Peng Yan,Zhou Wenqiao,Zhang Huicong,Liu Die
收稿日期：2019-06-15 年卷（期）页码：2020,47(2):182-188
期刊名称：国际口腔医学杂志
Journal Name：International Journal of Stomatology
关键字：老年,上唇,侧貌,锥形束CT,无牙颌,美学修复,
Key words：the elderly,upper lip,profile,cone beam computed tomography,edentulous,esthetic restoration,
基金项目：重庆医科大学附属口腔医院重点科研培育项目(PYZD2016-03);2016年重庆市高校创新团队建设计划资助项目(CXTDG201602006)
中文摘要
目的 通过锥形束CT（CBCT）进行三维测量,分析不同年龄段有牙颌人群上唇软组织侧貌特征,为无牙颌患者的全口义齿修复提供面部美学的客观参考依据。方法 选择300例有牙颌人群的CBCT影像资料进行研究,按照患者年龄分为青年组（20~39岁）、中年组（40~59岁）、老年组（60岁及以上）,对上唇长度、厚度等相关指标进行测量,对上唇皮肤段侧面轮廓进行形态学分析。结果 上唇长度、厚度测量指标结果显示,随着年龄增加,上唇长度逐渐变大,唇红暴露量及唇红厚度逐渐减少,差异有统计学意义（P结论 为老年无牙颌患者进行全口义齿修复时,应充分考虑与其衰老相关的上唇侧貌特征,人工牙排列应注意上唇下缘到中切牙切缘的距离与患者年龄相符合,上唇丰满度的恢复也应考虑与同年龄有牙颌侧貌轮廓形态表现相符合。
英文摘要
ObjectiveTo measure and analyze upper lip profile features in dentate subjects among different age groups using cone beam computed tomography (CBCT) to provide an objective reference for facial esthetics in complete denture restoration.MethodsA total of 300 CBCT images were selected and divided into one of the following three groups accor-ding to age: youth group (20-39 years), middle-aged group (40-59 years), and elderly group (more than 60 years). The length and thickness of the upper lip of each image were measured, and a morphological analysis of the upper lip profile was performed.ResultsThe upper lip lengthened with aging. Moreover, the exposure of lip vermilion and the thickness of lip vermilion gradually decreased. The distance from the edge of the upper incisor to the edge the upper lip in three groups equated to (1.962 2±1.107 1), (0.835 3±1.206 6), and (0.014 1±1.225 6) mm. Moreover, the thicknesses of the lip vermilion were (12.355 8±1.950 3), (10.634 2±1.782 4), and (9.924 9±1.951 4) mm. According to the morphological analysis of the upper lip profile, the upper lip profile was presented in the following four shapes: concave, straight, wavy, and convex. Furthermore, differences were noted between groups; that is, the young group showed the largest proportion of concave upper lip profiles (68%), the middle-aged group showed the largest proportion of concave and straight upper lip profiles (80%), and the elderly group showed the largest proportion of wavy and convex upper lip profiles (67%).ConclusionResults indicated that the upper lip changes related to aging should be fully considered when complete denture restoration is performed for edentulous patients. When arranging the artificial anterior teeth, we should pay attention to the distance from the edge of the upper incisor to the edge of the upper lip while considering patients’ ages. When plumping up the upper lip using a complete denture, we should try to make the effect consistent with that observed among dentate people of the same age.
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