@article{article74a53aa5,
title   = {Occlusal and cephalometric class II division 1 malocclusion severity in patients treated with and without extraction of 2 maxillary premolars},
author = {Janson, Guilherme dos Reis Pereira and Graciano, João Tadeu Amin and Henriques, José Fernando Castanha and Freitas, Marcos Roberto de and Pinzan, Arnaldo and Pinzan-Vercelino, Célia Regina Maio},
year = {2006},
doi = {10.1016/j.ajodo.2006.02.023},
journal   = {American Journal of Orthodontics and Dentofacial Orthopedics}
}