Knop, L. A. H., A. P. Soares, R. L. Shintcovsk, L. P. Martins, and L. G. Gandini Júnior. “Characterization of Surface Topography and Chemical Composition of Mini-Implants”. Brazilian Journal of Oral Sciences, vol. 14, no. 3, Jan. 2015, pp. 251-5, doi:10.20396/bjos.v14i3.8642881.