@misc{misc4f83c8f2, title = {SEM evaluation of smear layer removal by Er:YAG laser in root canals}, author = {Brugnera Júnior, Aldo and Roe, Iain Michael and Guerisoli, Danilo M. Zanello and Pécora, Jesus Djalma and Barbizam, João Vicente B}, year = {2002}, booktitle = {Lasers in Dentistry} }