TRAVASSOS , Rosana Maria Coelho et al. RETREATMENT OF MAXILLARY SECOND PREMOLAR WITH 4 ROOT CANALS. Seven Editora, [S. l.], p. 787–795, 2025. Disponível em: https://sevenpubl.com.br/editora/article/view/6939. Acesso em: 21 aug. 2025.