@article{articlecc3fc5e9, title = {Relationship between contraction stress and degree of conversion in restorative composites}, author = {Calheiros, Fernanda CalabrĂ³ and Braga, Roberto Ruggiero and Kawano, Yoshio and Ballester, Rafael Yague}, year = {2004}, doi = {10.1016/j.dental.2004.03.003}, journal = {Dental Materials} }