@article{article96f7b49c, title = {Gram-negative periodontal pathogens and bacterial endotoxin in metallic orthodontic brachets with or without an antimicrobial agent: an in-vivo study}, author = {Nelson Filho, Paulo and Valdez, Remberto Marcelo Argandoña and Andrucioli, Marcela Cristina Damião and Saraiva, Maria da Conceição Pereira and Feres, Magda and Sorgi, Carlos Arterio and Faccioli, Lucia Helena}, year = {2011}, doi = {10.1016/j.ajodo.2011.06.026}, journal = {American Journal of Orthodontics and Dentofacial Orthopedics} }