Abstract
Abstract Aims The aim of the present study was to evaluate the lay perception of the effect of the buccal corridor and amount of tooth- gingival display on the attractiveness of a smile in different facial types. Materials and methods Using Adobe Photoshop CS3 software, frontal facial images of two smiling Iranian female subjects (one short-faced and one long-faced) were altered to create different magnitudes of buccal corridor display (5, 10, 15, 20 and 25%) and tooth-gingival display (2 mm central incisor show, 6 mm central incisor show, total central incisor show, total tooth show with 2 mm gingival show and total tooth show with 4 mm gingival show). Sixty Iranians (30 males and 30 females) rated the attractiveness of the pictures on a 1–5 point scale. Results Narrower smiles were preferred in long-faced subjects compared with short-faced subjects. Minimal tooth show was more attractive than excessive gingival display in short-faced subjects. There were no gender specific, statistically significant differences found in the ratings given by the lay assessors. Conclusions Harmonious geometry of the smile and face in both the vertical and transverse dimensions influences smile attractiveness and this should be considered in orthodontic treatment planning.
Highlights
Aesthetics is increasingly becoming the main reason for patients seeking dental care, and appearance is an important aspect of orthodontic diagnosis and treatment planning
A comparison of buccal corridor width and tooth display in the two facial types is illustrated in Figures 5 and 6, respectively
The present results revealed that the effects of buccal corridor width and tooth display on smile aesthetics are strongly related to facial height
Summary
Aesthetics is increasingly becoming the main reason for patients seeking dental care, and appearance is an important aspect of orthodontic diagnosis and treatment planning. Smile aesthetics has become an important goal for orthodontists and their patients[1-3] and a major criterion by which orthodontic success is judged.[4]. Social acceptance is affected by smile aesthetics, and a patient’s personality, selfconfidence and self-esteem are highly influenced by the smile and facial attractiveness.[5,6]. Smile aesthetics is affected by its component smile arc and the amount of tooth-gingival show. A ‘gummy’ smile, has been reported to be less attractive in comparison with minimal gingival display.[7-9].
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