Smile Attractiveness: Differences among the Perceptions of Dental Professionals and Laypersons.

Objective: The aim of this study was to analyze the acceptable values of female and male smile attractiveness based on different amounts of gingival display and buccal corridor widths, as judged by dental professionals and laypersons.

Methods: The frontal smile photographs of a male and female model were modified to create seven different smile photographs of the same individual with different amounts of gingival display and buccal corridor widths. Overall, 249 evaluators in four groups (Group 1=orthodontists, Group 2=prosthodontists, Group 3=oral surgeons, and Group 4=laypersons) evaluated 28 images of different smiles with a visual analogue scale.