@article{morimoto_nagase_tedesco_moraes_sesma_2018,  title={Effect of bleaching agents on black tooth stains caused by chromogenic bacteria: 10 years follow-up case report},  volume={66},  ISSN={1981-8637},  url={https://doi.org/10.1590/1981-8637201800020000143457},  DOI={10.1590/1981-8637201800020000143457},  number={2},  journal={RGO - Revista Gaúcha de Odontologia},  publisher={Faculdade São Leopoldo Mandic},  author={MORIMOTO, Susana and NAGASE, Denis Yudi and TEDESCO, Tamara Kerber and MORAES, Bárbara Thayara Barral and SESMA, Newton},  year={2018},  month={Apr},  pages={187–193} }