前牙美学参数喜好度的网络调查研究

目的：通过网络调查的方法研究不同人群对前牙美学参数的喜好程度。方法：使用图象处理软件得到数张不同的口腔区域数码图片,分别用于调查人们对以下两项美学参数的喜好：休息位时上中切牙的暴露量和牙齿的亮度。制作调查网页,将链接放置在北京大学口腔医院第二门诊部的主页,对结果进行统计,并使用卡方检验分析年龄职业等因素对受调查者选择的影响。结果：共收到提交的调查结果419份,其中绝大多数人认可休息位时上中切牙暴露4mm（50．1％）以及2mm（45．3％）。高学历人群更喜欢上中切牙暴露2mm,低学历组更喜欢上中切牙暴露4mm,口腔医生及相关职业的人群更倾向于上中切牙暴露2mm,而普通人更喜欢上中切牙暴露4mm。另外,高亮度以及原始亮度的牙齿比较受欢迎（55．1％）（42．0％）。而口腔医生及相关职业相对于普通人,更多的选择了原始的亮度,选择较明亮的少于普通人。结论：绝大多数人喜好亮度较高的牙齿以及休息位时上中切牙暴露2mm及4mm,口腔医生以及相关职业人群在选择休息位时上中切牙的暴露量、牙齿的明暗度时与普通人有差别。受教育程度的差异对休息位时上中切牙的暴露量的选择有影响。

Preferences for anterior tooth esthetic factors: A web-based study

Objective： The evaluate the attitudes of different people towards several dental esthetic concepts. Methods： several computer-aided imagings were used to evaluate the attitudes towards several dental esthetic concepts as followed： 1. The visible portion of upper central incisor at rest position. 2.Teeth color. The survey was conducted on the web. A web page of questionnaire was made, the link address was put on the homepage of Peking University School of Stomatology 2nd Dental Center. The replies were counted and analyzed. Results： A total of 419 responses were received and analyzed, most informants appreciated upper central incisor exposing 4mm （50.1%） at rest position, as well as 2ram （45.3%）. People with high educational level preferd upper anterior teeth exposing 2mm,while people with low educational attainment chose 4mm. Also, most dentists chose 2mm while most laymne chose 4mm. Further more, teeth with high and normal brightness were preferred than dark ones. More dentists, rather than laymne, chose original teeth colour while more laymne perfered brighter teeth. Conclusion： most people appreciate upper central incisor exposing 4mm and 2mm at rest position. Moreover, bright teeth are more popular than dark ones. There are significant differences between dentist and layman as to the choice of visible portion of anterior teeth at rest position and teeth colour. In addition, educational background will affect informants＇choices when looking at varied visible portion of upper central incisor at rest position.