Malocclusion or laterorhinia: Which one impacts aesthetic facial perception the most?

牙科 鼻子 口腔正畸科 吸引力 显著性差异 错牙合 容貌吸引力 标准差 方差分析 医学 数学 心理学 解剖 统计 精神分析
作者
Iris Trindade de Paiva Ghiu,Rafael Cunha Bittencourt,Joana Figueiredo Seixas,Ricardo Martins Machado,Alexandre Trindade Motta,Cláudia Trindade Mattos
出处
期刊:Orthodontics & Craniofacial Research [Wiley]
卷期号:27 (2): 297-302 被引量:1
标识
DOI:10.1111/ocr.12727
摘要

Abstract Introduction This study aimed to evaluate the perception of facial attractiveness when nose and teeth, together or isolated, present different degrees of disharmony. The secondary objective was to compare the perception of laypersons with that of dentists. Materials and Methods This cross‐sectional observational study included 112 individuals (58 laypersons and 54 dentists) that evaluated 6 manipulated images of the face of the same model, scoring their attractiveness using 10 cm Visual Analogue Scales (VAS), with least and most attractive at the left and right anchors, respectively. The images contained manipulations performed only on the nose (laterorhinia) and mouth (misaligned teeth), as follows: (1) standard photograph, with symmetrical nose + aligned teeth; (2) 2 mm nasal deviation + aligned teeth; (3) 4 mm nasal deviation + aligned teeth; (4) symmetrical nose + misaligned teeth; (5) 2 mm nasal deviation + misaligned teeth and (6) 4 mm nasal deviation + misaligned teeth. We used the repeated measures ANOVA test and Tukey's post‐test for intra‐group comparison of the images. The independent t‐test was used for inter‐group comparison of each image. Results In the laypersons' group, the highest grades were given to images with aligned teeth and the lowest to misaligned teeth (smallest mean difference = 2.88 cm). For this group, there was no statistically significant difference ( P ‐values ranged from .988 to 1.000) between scores of the three images in which teeth were aligned (range of 7.70–7.78 cm). In the group of dentists, highest grades were given to images with aligned teeth and the lowest to misaligned teeth. Difference between images 3 and 4 was not statistically significant ( P = .204). All other differences between any image of straight teeth and any image with misaligned teeth were significant and the smallest mean difference between the two groups of images was 1.87 ( P = .039). However, in the images with aligned teeth, there was also a statistically significant difference with higher scores to the images with symmetrical nose in contrast with those with significant laterorhinia (mean difference = 1.03 cm). Conclusion Teeth disharmonies had a more negative impact on the aesthetic perception of the face than did nose deviations, for both dentists and laypersons.
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