@article{articledc7588ca,
title   = {Effect of three different attachment designs in the extrusive forces generated by thermoplastic aligners in the maxillary central incisor},
author = {Costa, Rafael and Calheiros, Fernanda Calabró and Ballester, Rafael Yague and Gonçalves, Flávia},
year = {2020},
doi = {10.1016/j.ortho.2020.03.002},
journal   = {Dental Press Journal of Orthodontics}
}