@article{stella_oliveira_nojima_marquezan_2015,  title={Four chemical methods of porcelain conditioning and their influence over bond strength and surface integrity},  volume={20},  ISSN={2176-9451},  url={https://doi.org/10.1590/2176-9451.20.4.051-056.oar},  DOI={10.1590/2176-9451.20.4.051-056.oar},  number={4},  journal={Dental Press Journal of Orthodontics},  publisher={Dental Press International},  author={Stella, João Paulo Fragomeni and Oliveira, Andrea Becker and Nojima, Lincoln Issamu and Marquezan, Mariana},  year={2015},  month={Jul},  pages={51–56} }