@article{fouad salama2020of,
  title={Effect of Whitening Toothpastes and Brushing on Microhardness of
Esthetic Restorative Materials},
  author={fouad salama,faika abdelmegid,lamya alhomaidhi,sara alswayyed, shatha alfarraj},
  journal={Journal of Clinical Pediatric Dentistry},
  volume={44},
  number={5},
  pages={296--301},
  doi = {10.17796/1053-4625-44.5.2},
  year={2020}
}