Influence of different light sources and photo-activation methods on degree of conversion and polymerization shrinkage of a nanocomposite resin - Costa, S. X. S.; Martins, L. M.; Francisconi, Paulo Afonso Silveira; Bagnato, Vanderlei Salvador; Saad, J. R. C.; Rastelli, A. N. S.; Andrade, M. F. (Laser Physics, 2009)