@article{article3f2593c2, title = {Effect of preheating on microhardness and viscosity of 4 resin composites}, author = {Ayub, Karen Vaz and Santos Jr, Gildo Coelho and Rizkalla, Amin Sami and Bohay, Richard and Pegoraro, Luiz Fernando and Rubo, José Henrique and Santos, Jacinta M. C.}, year = {2014}, journal = {Journal of the Canadian Dental Association} }