Evaluation of different techniques for the correction of gingival smile: Literature review. Research, Society and Development, [S. l.], v. 10, n. 5, p. e54510515092, 2021. DOI: 10.33448/rsd-v10i5.15092. Disponível em: https://www.rsdjournal.org/rsd/article/view/15092. Acesso em: 5 dec. 2025.