Page 29 - SPEMD_62-1

Revista Portuguesa de Estomatologia,
Medicina Dentária e Cirurgia Maxilofacial

rev port estomatol med dent cir maxilofac. 2021;62(1):23-28

Original Research

Correlation between the attractiveness of the facial
components and the smiling face in males and females

Joana Godinho*, Patrícia Gomes, Luís Jardim
Faculdade de Medicina Dentária da Universidade de Lisboa

a r t i c l e i n f o a b s t r a c t

Article history: Objectives: Esthetics is the main reason for seeking orthodontic treatment, demonstrat-
Received 2 December 2020 ing the importance of smile attractiveness in human relations. Therefore, this study
Accepted 28 February 2021 aimed to quantify the influence of the smile and other facial components on overall
Available online 30 March 2021 facial attractiveness.
Methods: Eight laypersons evaluated the attractiveness of 60 adults (30 men, 30 women)
Keywords: before orthodontic treatment using a visual analog scale. Pearson and stepwise correlations
Attractiveness were carried out between the smiling face’s attractiveness and the attractiveness of the
Facial esthetics facial components: upper two-thirds, lower third, and smile.
Facial parts Results: For the entire sample, strong to moderate correlations were found between facial
Laypersons attractiveness and the smile (r = 0.71), the lower third (r = 0.70), and the upper two-thirds of
Smile the face (r = 0.42). When divided by gender, the facial parts’ correlation values were moder-
ate and similar among each other in men, while in women, the face showed strong corre-
lations with the smile (r = 0.83) and the attractiveness of the face’s lower third (r = 0.75).
Conclusions: In general, correlations were found between the attractiveness of the smiling
face and the components. In males, the lower third of the face accounted for 66% of the
variation in facial attractiveness. In females, 83% of the variance in facial attractiveness
could be ascribed to smile, with the value increasing only to 86% when the upper two-thirds
were added. (Rev Port Estomatol Med Dent Cir Maxilofac. 2021;62(1):23-28)
© 2021 Sociedade Portuguesa de Estomatologia e Medicina Dentária.
Published by SPEMD. This is an open access article under the CC BY-NC-ND license
(http://creativecommons.org/licenses/by-nc-nd/4.0/).

* Corresponding author.
E-mail address: joana.godinho@fmd.ulisboa.pt (Joana Godinho).
http://doi.org/10.24873/j.rpemd.2021.03.828
1646-2890/© 2021 Sociedade Portuguesa de Estomatologia e Medicina Dentária. Published by SPEMD.
This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).