@article{articledf4700be,
title   = {Socio-environmental factors associated with dental occlusion in adolescents},
author = {Frazão, Paulo and Narvai, Paulo Capel},
year = {2006},
doi = {10.1016/j.ajodo.2004.10.016},
journal   = {American Journal of Orthodontics and Dentofacial Orthopedics}
}