@article{article25138813,
title   = {Comparative study between the radiopacity levels of high viscosity and of flowable composite resins, using digital imaging},
author = {Vasconcellos, Beatriz Tholt de and Thompson, JY and Macedo, M. R. de Paula and Maia, J. M. de Oliveira and Oda, Margareth and Garone Netto, Narciso},
year = {2013},
journal   = {The european journal of esthetic dentistry}
}