@article{lei lei2023economic,
  title={An economic evaluation of pit and fissure sealants and fluoride varnishes in preventing dental caries: a systematic review},
  author={bin zhang,min zhao,shaoying duan,jiangang tian,lei lei,ruizhe huang},
  journal={Journal of Clinical Pediatric Dentistry},
  volume={47},
  number={5},
  pages={4--11},
  doi = {10.22514/jocpd.2023.048},
  year={2023}
}