Toxina botulínica como alternativa de correção do sorriso gengival: revisão de literatura

Abstract

The gingival smile is denominated when the individual has more than three mm of gingival exposure during the smile. Over the years, many surgical protocols have been developed to correct problems related to gingival tissue. Recently, the use of botulinum toxin has been a less invasive resource for the correction of this pathology. Thus, the objective of the present study is to present the application of botulinum toxin as an alternative for the correction of gingival smile. For the construction of this work, searches were carried out in journals published in the MEDLINE (Medical Literature Analysis and Retrieval System Online), SciELO (Scientific Electronic Library Online) and LILACS (Latin American and Caribbean Literature in Health Sciences) databases. It was observed that botulinum toxin type A provides effective improvement of the gingival smile, being minimally invasive in addition to having a temporary effect in patients treated with hyperfunction of the upper lip elevator muscle. It is a very conservative, simple, effective, and completely reversible technique, which requires maintenance over time. It still has some limitations related to its cost. It is concluded that botulinum toxin when used correctly and by a qualified professional, guarantees good results.