The authors studied and provided treatment to patients with the complaint of gummy smile. Between October of 2009 and January of 2011, 52 unaesthetic smiles were evaluated and treated with onabotulinum toxin A. Botulinum toxin injection was an effective treatment, with an average satisfaction level of 9.75 on a 10-point scale. The levator labii superioris alaeque nasi is the ideal muscle for injection, and lopsided smiles could be resolved also with onabotulinum toxin A asymmetric injection. Gummy smile treatment with onabotulinum toxin A into the levator labii superioris alaeque nasi muscle is an effective method, with minimum risk of complications and very high patient satisfaction.
Rio de Janeiro, Brazil; and Lima, Peru
From the Clínica Essendi and the Hospital Santa Casa Da Misericórdia.
Received for publication October 16, 2011; accepted March 23, 2012.
Disclosure: The authors have no financial interest to declare in relation to the content of this article.
Eduardo Sucupira, M.D.; Clínica Essendi, Avenida das Americas 3434, Bloco 5 Conjunto 419 CEP 22640102, Barra da Tijuca, Rio de Janeiro, Brazil, firstname.lastname@example.org