Resumo

KUHN-DALL'MAGRO, Alessandra et al. Tratamento do sorriso gengival com toxina botulínica tipo A: relato de casoTreatment of gummy smile using botulinum toxin type A: case report. RFO UPF [online]. 2015, vol.20, n.1, pp. 81-87. ISSN 1413-4012.

Objective: smiling is the most beautiful facial expression and is directly connected to well-being, happiness, pleasure, and more. Physiologically, it is the result of teeth and gum exposure during the contraction of a muscle group. When smiling, many people show an excessive amount of gum, which is an esthetic problem. The aim of this study is to review the literature on etiology and treatment of the gummy smile, as well as to report through a clinical case the recommendation of botulinum toxin as a form of treatment. Case report: female patient, 22 years old, with gummy smile caused by hypermobility of the upper lip elevator muscle, gum bilateral exposure of 4 mm. Patient was treated with botulin toxin type A, 10U, bilaterally, which resulted in a harmonious and more pleasantly esthetic smile. Final considerations: gummy smile is considered an esthetic disorder by many patients and it may be treated with the use of botulinum toxin.

Palavras-chave : Gummy smile.; Botulinum toxin type A.; Esthetics..