Pontifícia Universidade Católica do Paraná, Escola de Ciências da Vida, Programa de Pós-Graduação em Odontologia, Área de Concentração em Clínica Odontológica Integrada - Ortodontia (Curitiba/PR, Brazil).
Pontifícia Universidade Católica do Paraná, Escola de Ciências da Vida, Programa de Pós-Graduação em Odontologia, Área de Concentração em Clínica Odontológica Integrada - Estomatologia (Curitiba/PR, Brazil).
Dental Press J Orthod. 2021 Mar 22;26(1):e211928. doi: 10.1590/2177-6709.26.1.e211928.oar. eCollection 2021.
To study the influence of black space between the maxillary central incisors on the aesthetic visual perception of the face, via eye-tracking and visual analogue scale (VAS).
Black space between the central incisors was created, for both sexes, as follows: control, 1-mm black space, 2-mm black space and 3-mm black space. Ninety raters participated in this study, divided into three groups: 30 laypeople, 30 nonorthodontists, and 30 orthodontists. After the visual calibration of each observer, eight photographs were presented in the Ogama® software concomitant with the use of the hardware The Eye Tribe®. Ogama generated information depending on the eye-tracking of each rater, regarding the time until the first fixation, time of fixation, heatmap, scanpath, and total time of fixation, to evaluate the areas deemed to be of interest according to the raters. Later on, the VAS was used, where each rater evaluated the images in an album on a scale of zero to 10 points.
The eyes and mouth were the areas more often noticed by the raters according to the heatmaps, while no significant difference was observed in time until the first fixation between the three groups of raters (p> 0.05). However, regarding the time of fixation on the mouth, a significant difference was observed (p< 0.05) when comparing the three groups.
Black space has a negative effect on the aesthetic perception of the face. The amount of attention on the mouth is correspondent to the size of the black space.
通过眼动追踪和视觉模拟评分（VAS）研究上颌中切牙之间的黑空间对面部美学视觉感知的影响。
为男性和女性分别创建中切牙之间的黑空间：对照、1mm 黑空间、2mm 黑空间和 3mm 黑空间。90 名评分者参与了这项研究，分为三组：30 名外行、30 名非正畸医生和 30 名正畸医生。在每位观察者的视觉校准后，在 Ogama®软件中呈现了八张照片，并同时使用 The Eye Tribe®硬件。Ogama 根据每位评分者的眼动追踪生成信息，包括首次注视时间、注视时间、热图、扫视路径和总注视时间，以根据评分者评估被认为是感兴趣的区域。之后，使用 VAS 对相册中的图像进行评分，评分范围为 0 到 10 分。
根据热图，眼睛和嘴是评分者更常注意的区域，而三组评分者的首次注视时间没有显著差异（p>0.05）。然而，在注视嘴的时间方面，三组之间存在显著差异（p<0.05）。
黑空间对面部美学感知有负面影响。对嘴的关注程度与黑空间的大小相对应。
