@article{articlebc1af5e4,
title   = {Torsional properties of commercial nickel-titanium wires during activation and deactivation},
author = {Gurgel, Julio de Araujo and Kerr, Stephen and Powers, John M. and Pinzan, Arnaldo},
year = {2001},
doi = {10.1067/mod.2001.115147},
journal   = {American Journal of Orthodontics and Dentofacial Orthopedics}
}