@article{santos_pithon_martins_romanos_2010,  title={Cytotoxicity of carbamide peroxide bleaching gel on L929 cells},  volume={25},  ISSN={1980-6523},  url={https://doi.org/10.1590/S1980-65232010000300010},  DOI={10.1590/S1980-65232010000300010},  number={3},  journal={Revista Odonto Ciência},  publisher={Pontifícia Universidade Católica do Rio Grande do Sul},  author={Santos, Rogério Lacerda dos and Pithon, Matheus Melo and Martins, Fernanda Otaviano and Romanos, Maria Teresa Villela},  year={2010},  pages={271–275} }