@article{adriana modesto2000of,
  title={Formation of alkali-soluble fluoride on the surface of human dental enamel after treatment with fluoridated gels: influence of the pH variation and of the treatment time},
  author={ana rita duarte guimarães,adriana modesto,alexandre rezende vieira},
  journal={Journal of Clinical Pediatric Dentistry},
  volume={24},
  number={4},
  pages={303--307},
  doi = {10.17796/jcpd.24.4.1l437256773n453u},
  year={2000}
}