上海口腔医学

上海口腔医学 ›› 2019, Vol. 28 ›› Issue (5): 518-522.doi: 10.19439/j.sjos.2019.05.014

• 论著 • 上一篇    下一篇

颏部突度改变对面部美学的影响

董婷1, 叶年嵩1, 袁玲君1, 吴思成2, 夏伦果1, 房兵1   

  1. 1. 上海交通大学医学院附属第九人民医院·口腔医学院 口腔正畸科,上海 200011;
    2. 上海交通大学医学院附属第九人民医院·临床研究中心,生物统计研究室, 国家口腔疾病临床医学研究中心,上海市口腔医学重点实验室,上海市口腔医学研究所,上海 200011
  • 收稿日期:2018-11-19 出版日期:2019-10-25 发布日期:2019-12-11
  • 通讯作者: 房兵,E-mail: fangbing@sjtu.edu.cn
  • 作者简介:董婷（1993-）,女,在读硕士研究生, E-mail:crystal460@gmail.com

Assessing the influence of chin prominence on perceived facial aesthetics among three groups of observers

DONG Ting1, YE Nian-song1, YUAN Ling-jun1, WU Si-cheng2, XIA Lun-guo1, FANG Bing1   

  1. 1.Department of Orthodontics, Shanghai Jiao Tong University School of Medicine;
    2.Clinical Research Center, Biostatistics Laboratory, Shanghai Ninth People's Hospital, College of Stomatology, Shanghai Jiao Tong University School of Medicine;National Clinical Research Center for Oral Diseases, Shanghai Key Laboratory of Stomatology &Shanghai Research Institute of Stomatology.Shanghai 200011, China
  • Received:2018-11-19 Online:2019-10-25 Published:2019-12-11

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摘要： 目的 通过3D图像研究颏部突度改变对面部美学的影响,比较正畸医师、口腔全科医师及普通大众对颏部突度变化的美学认知差异,为临床治疗方法的选择提供定量参考。方法 使用3dMD立体摄影技术,获取志愿者的三维面部图像,使用Geomagic Wrap 2015软件,以2 mm为梯度,使软组织颏前点沿矢状轴前后移动,移动幅度为零子午线前后10 mm。选取正畸医师、口腔全科医师及普通大众3组评价者,以VAS评分对图像进行评价,使用SAS 9.4建立线性混合效应模型,对数据进行方差分析。结果 纳入调查对象243人,其中口腔正畸医师90人,口腔全科医师101人,普通大众52人。研究发现,颏部突度变化对VAS评分有显著影响,软组织颏前点位于零子午线上时评分最高,颏部每后缩2 mm,VAS评分下降0.8910;每前突2 mm,VAS评分下降1.0958,有显著差异（P<0.01）。正畸医师组及普通大众组在颏部后缩超过6 mm、口腔全科医师组在颏部后缩超过4 mm时平均VAS评分低于5,3组人群在颏部前突达到6 mm时平均VAS评分低于5,需要进行治疗。颏部突度变化时,3组人群评分变化无统计学差异,性别及年龄亦无显著影响。结论 颏部突度变化对面部美学有显著影响,软组织颏前点位于零子午线时美学效果最佳,颏部前突达到6 mm或颏部后缩超过6 mm时治疗需求较大。正畸医师、口腔全科医师及普通大众对颏部突度变化的美学认知程度无显著差异。

关键词: 颏部突度, 面部美学, VAS评分, 软组织颏前点, 三维立体摄影

Abstract: PURPOSE: To assess the influence of chin prominence on facial aesthetics with 3D images, to investigate the cognitive boundaries of chin prominence among orthodontists, general dentists and laypeople and compare the variance of their cognitive data, in order to provide quantitative reference for selection of clinical treatment. METHODS: A 3D facial image was obtained by 3dMD. The soft tissue pogonion point was altered in 2 mm increments from -10 to 10 mm with Geomagic Wrap 2015, in order to represent retrusion and protrusion of the chin. These images were rated by orthodontists, general dentists and laypeople with VAS scores. Multivariate mixed linear regression was used to analyze the influence of gender, age and chin prominence on VAS scores, and whether there were differences among different groups with SAS 9.4 software package. ANOVA was also applied for comparison of each prominence. RESULTS: This study was composed of 243 subjects, including 90 orthodontists, 101 general dentists and 52 laypeople. Chin prominence had significant effect on VAS scores. VAS scores decreased by 0.8910 for each unit increase in chin retrusion and decreased by 1.0958 for each unit increase in chin protrusion（P<0.01）. Desire for treatment started when chin retrusion exceeded 6 mm in orthodontist group and layperson group, 4 mm in general dentist group, and chin protrusion reached 6 mm in all groups（VAS scores <5）. There was no significant difference in the scores among orthodontists, general dentists and laypeople with the variance of chin prominence, and there was no significant difference in gender and age. CONCLUSIONS: Chin prominence had significant effect on facial aesthetics. Soft tissue pogonion point located on the zero meridian was considered as the most attractive. Treatment needs increased significantly when chin protrusion reached 6 mm or chin retrusion exceeded 6 mm. There was no significant difference in the assessment among orthodontists, general dentists and laypeople.

Key words: Chin prominence, Facial anesthetics, VAS scores, Soft tissue pogonion point, 3dMD

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