Fidalgo, Tatiana Kelly da Silva, Matheus Melo Pithon, José Vinicius Bolognesi Maciel, and Ana Maria Bolognese. 2011. “ Friction Between Different Wire Bracket Combinations in Artificial Saliva: An in Vitro Evaluation ”. Journal of Applied Oral Science 19 (1): 57-62. https://doi.org/10.1590/S1678-77572011000100012.