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Updated: Feb 4, 2026
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Single-stage Dynamic Reanimation of the Smile in Irreversible Facial Paralysis by Free Functional Muscle Transfer
Published on: March 1, 2015
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Details of pleasing smiles.
The International Journal of Esthetic Dentistry
|October 11, 2018
Summary
Attractive smiles in Brazil feature a parallel smile arc, oval incisors, and specific gingival display. These findings correlate key anatomical features with perceived smile aesthetics for dental professionals and the public.
Area of Science:
- Dentistry
- Aesthetic Science
- Facial Anatomy
Background:
- Smile aesthetics significantly impact social perception and self-esteem.
- Understanding the anatomical determinants of an attractive smile is crucial for orthodontic and restorative treatments.
Purpose of the Study:
- To identify the most and least attractive smiles within a Brazilian population.
- To correlate specific anatomical characteristics with perceived smile attractiveness.
Main Methods:
- Photographs of 86 students (19-30 years) were evaluated by orthodontists, dentists, and laypeople using a visual analog scale (VAS).
- An evaluator analyzed the esthetic composition of the highest and lowest-rated smiles.
Main Results:
- 42 anatomical smile details were identified and described.
- Key features of attractive smiles included a parallel smile arc, oval incisors with rounded edges, and controlled gingival display.
Conclusions:
- Attractive smiles exhibit specific anatomical traits like a parallel smile arc, ideal incisor shape, and balanced gingival display.
- Absence of asymmetries and ideal tooth proportions contribute to overall smile attractiveness.
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