@article{article52b64779,
title   = {Predictable drill-free screw positioning with a graduated 3-dimensional radiographic-surgical guide: a preliminary report},
author = {Barros, Sergio Estelita Cavalcante and Janson, Guilherme dos Reis Pereira and Chiqueto, Kelly Fernanda Galvão and Janson, Marcos dos Reis Pereira and Freitas, Marcos Roberto de},
year = {2009},
doi = {10.1016/j.ajodo.2007.12.028},
journal   = {American Journal of Orthodontics and Dentofacial Orthopedics}
}