Associação da proporção áurea e harmonia de sorriso em alunos da Universidade do Sul de Santa Catarina – Pedra Branca

Introduction: In dentistry, there was an increase in the search for a lighter colored smile and more proportionate faces, in view of the increase in the search for facial harmonization and aesthetic requirement, the golden ratio is used in Dentistry for the production of dentures and restorative procedures, being a parameter used between the mesio-distal of the anterior superior teeth. Objective: To estimate the frequency of the golden ratio of the anterior superior teeth and its relation to the harmony of the smile. Method: This study is characterized by an observational, cross-sectional study. Held at the Dental Clinic Unisul, where were photographed smiles of 70 students of the course of Dentistry for convenience, male and female. The photographs were printed to measure the mesio-distal of the anterior superiors and the values obtained tabulated. These photographs were evaluated by a group of dental surgeons (G1) and another group of laymen (G2) who classified as "Harmonic" or "Non-harmonic". Results: The results showed that 4.3% of the relation between the CI / IL was within the golden ratio and only 1.4% between the IL / C. Among the evaluations of G1 32.3% was considered "Harmonic" and 67.7% for "Non Harmonic", while G2 evaluated in 29.5% and 70.5% respectively. Conclusion: The golden ratio was not determinant for a smile to be considered harmonic. Keywords: Esthetic; Perception; Smiling.