Dangers of using activated charcoal for teeth whitening. Research, Society and Development, [S. l.], v. 11, n. 8, p. e9111830558, 2022. DOI: 10.33448/rsd-v11i8.30558. Disponível em: https://rsdjournal.org/rsd/article/view/30558. Acesso em: 5 dec. 2025.