@article{article426c83c3,
title   = {Unusual orthodontic retreatment},
author = {Janson, Guilherme and Janson, Marcos R. and Cruz, Karina Santana and Henriques, José Fernando Castanha and Freitas, Marcos Roberto},
year = {2003},
doi = {10.1067/mod.2003.80},
journal   = {American Journal of Orthodontics & Dentofacial Orthopedics}
}