Silva, F. R. da, Hebling, E., Cândido Brizon, V. S., Pereira, A. C., Padilha, E. Z., & Hintz, R. (1970). Periapical Status and Quality of Root Canal Obturation in Elderly Population: A Systematic Review. Journal of Orofacial Research, 4(2), 81-89. https://mansapublishers.com/jofr/article/view/2078