[1]
T. M. Ramos, T. M. Ramos Oliveira, C. S. de Azevedo, D. N. de Gois, A. H. de A. Oliveira, and P. M. de Freitas, “Conservative esthetic treatment of a discoloured calcified permanent tooth: five-year clinical evaluation”, BDS, vol. 16, no. 4, pp. 105–112, Oct. 2013.