@article{article6a2534d0,
title   = {Relapse of anterior crowding 3 and 33 years postretention},
author = {Freitas, Karina Maria Salvatore and Guirro, Willian Juarez Granucci and Freitas, Daniel Salvatore de and Freitas, Marcos Roberto de and Janson, Guilherme},
year = {2017},
doi = {10.1016/j.ajodo.2017.05.022},
journal   = {American Journal of Orthodontics and Dentofacial Orthopedics}
}