F. I. R. Limeira, D. P. de Melo, D. Q. de C. Gomes, S. d’Ávila L. B. Cavalcanti, and P. M. Bento, “Radiographic evaluation of the dental condition of elderly people treated at a Brazilian public university”, Braz. J. Oral Sci., vol. 12, no. 4, pp. 352–356, Oct. 2015.