@article{articlec6de8821,
title   = {Effect of nail varnishes and petroleum jelly combinations on glass ionomer dye uptake},
author = {Valera, Valdeir Carneiro and Navarro, Maria Fidela de Lima and Taga, Eulázio Mikio and Pascotto, Renata Correa},
year = {1997},
journal   = {American Journal of Dentistry}
}