Reggiani, Mateus Guimaraes Lage, Fernanda Alves Feitosa, and Rodrigo Máximo de Araújo. 2015. “Color Stability of Artificial Teeth After Exposure to Acid and Staining Agents”. Brazilian Dental Science 18 (1). São José dos Campos, Brazil:60-66. https://doi.org/10.14295/bds.2015.v18i1.1068.