Fracture of abutment screw supporting a cemented implant-retained prosthesis with external hexagon connection: a case report with sem evaluation . Journal of Applied Oral Science, [S. l.], v. 15, n. 2, p. 148–151, 2007. DOI: 10.1590/S1678-77572007000200015. Disponível em: https://www.revistas.usp.br/jaos/article/view/3452.. Acesso em: 20 may. 2024.