通过眼动追踪观察微笑时对齐和拥挤的上颌侧切牙的视觉感知。
The visual perception of aligned and crowded maxillary lateral incisors when smiling via eye tracking.
作者信息
Meira Thiago Martins, Gasparello Gil Guilherme, Antelo Oscar Mario, Castilhos Jussimar Scheffer, Bark Mohamad Jamal, Tanaka Orlando Motohiro
机构信息
Department of Orthodontics, Bahia State University (UNEB), Guanambi, Brazil, School of Life Sciences, Pontifícia Universidade Católica do Paraná, Curitiba, Brazil.
Department of Orthodontics, School of Life Sciences, Pontifícia Universidade Católica do Paraná, Curitiba, Brazil.
出版信息
J Dent Res Dent Clin Dent Prospects. 2022 Fall;16(4):234-237. doi: 10.34172/joddd.2022.037. Epub 2022 Dec 30.
BACKGROUND
This study aimed to investigate whether the alignment of the teeth while smiling alters the visual perception by laypeople using eye tracking.
METHODS
Facial images (two males and two females) were digitally edited to show a smile pattern with aligned teeth and one with crowded teeth. Sixty laypeople were selected to observe the images. The number of fixations, fixation duration, and time until the first fixation were recorded using an eye-tracking system. The results were qualitatively calculated with dot maps. Numerical data were analyzed using an independent Student's test.
RESULTS
There were no significant differences in fixation duration and the number of fixations in the crowded smile, mainly that of the male. The fixation times for the teeth were significantly different when the participants viewed the male subjects with a crowded smile (<0.05). Dot maps showed greater attention to the smile with crowded teeth in both genders.
CONCLUSION
The crowded maxillary incisor smile attracted more visual attention to males from laypeople.
背景
本研究旨在通过眼动追踪调查微笑时牙齿排列是否会改变外行人的视觉感知。
方法
对面部图像（两名男性和两名女性）进行数字编辑，以呈现牙齿排列整齐的微笑模式和牙齿拥挤的微笑模式。选取60名外行人观察这些图像。使用眼动追踪系统记录注视次数、注视持续时间和首次注视前的时间。结果通过点图进行定性计算。数值数据采用独立样本t检验进行分析。
结果
牙齿拥挤的微笑（主要是男性的）在注视持续时间和注视次数上没有显著差异。当参与者观看牙齿拥挤的男性受试者时，对牙齿的注视时间存在显著差异（<0.05）。点图显示，男女对牙齿拥挤的微笑关注度更高。
结论
上颌前牙拥挤的微笑在外行人中吸引了更多对男性的视觉关注。
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