IADR Abstract Archives
THE RELATIONSHIP BETWEEN PERCEPTION OF SMILE ESTHETICS AND PERSONALITY FACTORS
Objectives: To evaluate the relationship between perception of smile esthetics and personality factors and to assess the effect of dental discrepancies on perception of smile attractiveness among different individuals.
Methods: In this descriptive cross-sectional study, 412 raters were distributed into 4 groups: pre-clinical dental students, clinical dental students, dentists, and laypeople. 4 colored smile photographs representing 4 smile factors: maxillary midline diastema, maxillary gingival display, crown length of maxillary central incisor, and incisal plane cant, were intentionally altered with a software imaging program to create 4 gradual variations. A ten-point numerical scale ranging between score 1 for minimum and 10 for maximum attractiveness was used to rate smile attractiveness. Additionally, Arabic version of the NEO-FFI questionnaire was used to assess the rates 5 major personality factors: Neuroticism, Extraversion, Openness, Agreeableness, and Conscientiousness.
Results: Smiles with no discrepancies scored the highest ratings while smiles with the most severe discrepancy scored the lowest except for the crown length of the central incisors smile factor where -0.5mm crown length was perceived as the most attractive. Significant correlations were found among the total study sample, Agreeableness and Conscientiousness personality traits were associated with perceiving smile with no maxillary midline diastema as more attractive (r=.118 and .112, p=.017 and .023 respectively). Openness personality trait was positively correlated with perception of smile with 2.0mm reduced incisal show and no gingival display (r=.105, p=.034). Extraversion and Openness personality traits were associated with perceiving the smile with 0mm gingival display as more attractive (r=.147 and .123, p=.003 and .012 respectively). Conscientiousness personality trait contributed positively to the perception scores of smile with no maxillary midline diastema among the total sample (β=0.120, p=.043). Additionally, significant predictors and associations were found within each study group.
Conclusions: Smiles with discrepancies were perceived as less attractive. The 5 major personality factors were found to have predictive value in determining smile attractiveness and they were significantly associated in perception of smile esthetics.
Methods: In this descriptive cross-sectional study, 412 raters were distributed into 4 groups: pre-clinical dental students, clinical dental students, dentists, and laypeople. 4 colored smile photographs representing 4 smile factors: maxillary midline diastema, maxillary gingival display, crown length of maxillary central incisor, and incisal plane cant, were intentionally altered with a software imaging program to create 4 gradual variations. A ten-point numerical scale ranging between score 1 for minimum and 10 for maximum attractiveness was used to rate smile attractiveness. Additionally, Arabic version of the NEO-FFI questionnaire was used to assess the rates 5 major personality factors: Neuroticism, Extraversion, Openness, Agreeableness, and Conscientiousness.
Results: Smiles with no discrepancies scored the highest ratings while smiles with the most severe discrepancy scored the lowest except for the crown length of the central incisors smile factor where -0.5mm crown length was perceived as the most attractive. Significant correlations were found among the total study sample, Agreeableness and Conscientiousness personality traits were associated with perceiving smile with no maxillary midline diastema as more attractive (r=.118 and .112, p=.017 and .023 respectively). Openness personality trait was positively correlated with perception of smile with 2.0mm reduced incisal show and no gingival display (r=.105, p=.034). Extraversion and Openness personality traits were associated with perceiving the smile with 0mm gingival display as more attractive (r=.147 and .123, p=.003 and .012 respectively). Conscientiousness personality trait contributed positively to the perception scores of smile with no maxillary midline diastema among the total sample (β=0.120, p=.043). Additionally, significant predictors and associations were found within each study group.
Conclusions: Smiles with discrepancies were perceived as less attractive. The 5 major personality factors were found to have predictive value in determining smile attractiveness and they were significantly associated in perception of smile esthetics.