Etiologies of gingival smile: report of a clinical case. Research, Society and Development, [S. l.], v. 11, n. 16, p. e378111638333, 2022. DOI: 10.33448/rsd-v11i16.38333. Disponível em: https://rsdjournal.org/rsd/article/view/38333. Acesso em: 26 dec. 2025.