@article{article603c79f2, title = {Determination of the force systems produced by different configurations of tear drop orthodontic loops}, author = {Thiesen, Guilherme and Shimizu, Roberto Hideo and Valle, Caio Vinicius Martins do and Valle-Corotti, Karyna Martins do and Pereira, Jefferson Ricardo and Conti, Paulo Cesar Rodrigues}, year = {2013}, doi = {10.1590/S2176-94512013000200007}, journal = {Dental Press Journal of Orthodontics} }