@article{articlec5b72eaa,
title   = {Treatment stability in patients with Class II malocclusion treated with 2 maxillary premolar extractions or without extractions},
author = {Janson, Guilherme and Camardella, Leonardo Tavares and Araki, Janine Della Valle and Freitas, Marcos Roberto de and Pinzan, Arnaldo},
year = {2010},
doi = {10.1016/j.ajodo.2008.08.033},
journal   = {American Journal of Orthodontics and Dentofacial Orthopedics}
}