@article{article67cde625,
title   = {Effects of the type and thickness of ceramic, substrate, and cement on the optical color of a lithium disilicate ceramic},
author = {Pires, Laís A. and Novais, Pollyanna M. R. and Araújo, Vinícius D. and Pegoraro, Luiz F.},
year = {2017},
doi = {10.1016/j.prosdent.2016.04.003},
journal   = {The Journal of Prosthetic Dentistry}
}