@article{may_araújo_vieira_2015,  title={Shear bond strength of ceramic brackets after different pre-treatments in
               porcelain surface},  volume={14},  ISSN={1677-3225},  url={https://doi.org/10.1590/1677-3225v14n1a07},  DOI={10.1590/1677-3225v14n1a07},  number={1},  journal={Brazilian Journal of Oral Sciences},  publisher={Faculdade de Odontologia de Piracicaba - UNICAMP},  author={May, Naudy Brodbeck and Araújo, Élito and Vieira, Luiz Clovis Cardoso},  year={2015},  month={Jan},  pages={31–35} }