汉族老年人微笑美学特征的性别差异  

Gender difference in the smile aesthetic features in aged Han Chinese and its clinical significance

作　　者：周芳[1] 冯洁[2] 李东 李子夏[1] 朱勇[1] 

机构地区：[1]西安医学院口腔医学系口腔修复正畸学教研室,710021 [2]西安交通大学医院口腔科 [3]第四军医大学口腔医院正畸科

出　　处：《中华老年医学杂志》2015年第7期800-802,共3页Chinese Journal of Geriatrics

基　　金：西安医学院科研计划扶植项目（12FZ12）

摘　　要：目的观察正常牙合的汉族老年人微笑美学特征的性别差异。方法筛选56名60～66岁（男女各28名）正常牙合汉族老年人为研究对象，拍摄其正面息止位及姿势位微笑照片，使用微笑美学特征测评系统CoSmileMAA1．0版软件对有关微笑美学特征的指标进行测量。结果老年人的息止位鼻翼宽度、微笑位鼻翼宽度、息止位上唇长度、微笑位上唇长度、息止位唇间隙、微笑位唇间隙、唇间隙变化值、息止位口角宽度、微笑位口角宽度、口角宽度变化值、上唇下缘与上切牙切缘距、下唇上缘与上切牙切缘距、微笑线比率及微笑类型存在性别差异（P〈0．05）；微笑时，老年女性唇间隙变化（10．7±1．9）mm较男性（11．3±1．6）mill明显，男性LI角宽度变化（14．1±1．6）mm较女性（13．4±1．3）mm明显，男性微笑线比率0．9±0．2较女性1．1±0．5小（均P％0．05），老年女性拥有更加美观的微笑；老年女性微笑以高位微笑为主[15例（53．6％）]，男性以中位微笑为主[17例（60．7％）]，二者比较差异有统计学意义（x2=6．43，P〈0．05）。结论正常牙合的汉族老年人微笑美学特征有性别差异，可通过改变上颌切牙长度和微笑线比率帮助老年人拥有更美观的微笑。Objective To investigate the gender difference in the smile aesthetic features in aged Han Chinese with normal occlusion and its clinical significance. Methods Fifty-six aged Han Chinese （male： 28, female： 28, aged 60 66 years） with normal occlusion were included in this study. Smiling images of the resting-position and mandibular postural position were obtained in an anterior posterior view. The CoSmileMAA1.0 software was used to evaluate the indices associated with the smile aesthetic features, and its clinical significance was analyzed. Results Significant differences were noted in the nasal ala width, upper lip length, lip clearance, angle oris width in resting position/ smiling position together with the changes of lip clearance, angle oris width, distance of inferior margin of upper lip to cutting edge of the maxillary incisor teeth, distance o~ superior border of lower lip to cutting edge of the maxillary incisor teeth, smile line ratio and type of smile （all P〈0.05）. When the subjects were smiling, the changes of lip clearance was greater in females than in males [（10.7±1.9）ram vs （11.3±1.6）mm, P〈0. 05）, the changes of angle oris width was greater in males than in females （（14.1±1.6）mm vs. （13.4±1.3）mm, P〈0.05], and the smile line ratio was less in males than in females 4（0.9±0.2） vs （1.1±0.5）, P〈0.05], which indicate that the females had more attractive smile in aged Han Chinese with normal occlusion than males. The type of smile was mainly high smile in elderly females and median smile in elderly males （53.6% （15 cases） and 60.7% （17 cases）, x2=6.43, P〈0. 053. Conclusions Significant gender difference is noted in the smile-aesthetic features in aged Han Chinese with normal occlusion. Modulation of maxillary incisor teeth length and smile line ratio can contribute to the aesthetic appearance of smiling.

关 键 词：汉族 微笑 

分 类 号：R783.5[医药卫生—口腔医学]