engleski

Do personality traits mediate the relationship between craniodentofacial features and self- esteem?

AIM: Influence of craniodentofacial features on self esteem is expected since these features affect facial and smile aesthetics. Personality traits could mediate this relationship, therefore, the aim of this study was to investigate this phenomenon. SUBJECTS AND METHODS: The study was cross–sectional and a convenient sample included 150 patients and university students (61.3% female) aged 11–39 years (median 21, interquartile range 19 – 23). The questionnaire was self administered and included Rosenberg Self-esteem Scale and Big Five Inventory for measuring personality traits. Craniodentofacial features were determined by Martin - Saller craniofacial indices, Index of Complexity, Outcome and Need and photogrammetric facial profile analysis. Self-perceived smile aesthetics was assessed by Aesthetic Component of Index of Orthodontic Treatment Need. Multiple linear regression was used for statistical analysis. RESULTS: When excluding personality traits from the consideration, decreased lower lip retrusion and more pointed nose prove to be the only significant predictors of self-esteem and account for the 5.8 and 3.2% of the variability, and the whole model for the 12% (p<0.001). After including personality traits into the regression model significant predictors of higher self-esteem become decreased lower lip retrusion, pointed nose, higher extraversion and agreebleness, and lower degree of neuroticism and their unique contribution is 4.9, 1.9, 4.7, 3.2 and 6.3% of variability of self-esteem The whole model accounts for 30% of variability (p<0.001). CONCLUSION: The personality traits account for significant part of variability in self confidence in addition to lower lip position and nose appearance, whereby the influence of lip position increases while of nose appearance decreases. Personality traits mediate the relationship between craniodentofacial features and self-esteem.

personality traits; craniodentofacial features; self-esteem

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