Purpose: The aim of the systematic review was to analyze the effectiveness of Botox injections for the treatment of the gummy smile.
Materials and methods: The systematic literature search was done in the databases: PubMed, Embase and Cochrane Library. The articles published from 2013 to 2020 were searched. Only studies on humans were included in this systematic literature review.
Results: During the initial search a total number of 139 articles were detected. However, after the removal of duplications 105 articles were left. Regarding the application of inclusion and exclusion criteria, 6 articles were selected for this systematic literature review.
Conclusions: The results of this study suggested that botulinum toxin was an efficient method to treat the gummy smile.