@article{zafer c cehreli2021discoloration,
  title={Tooth Discoloration Induced by Different Calcium Silicate–Based Cements: A Two-Year Spectrophotometric and Photographic Evaluation in Vitro},
  author={emre nagas,atila ertan,ayhan eymirli,ozgur uyanik,zafer c cehreli},
  journal={Journal of Clinical Pediatric Dentistry},
  volume={45},
  number={2},
  pages={112--116},
  doi = {10.17796/1053-4625-45.2.7},
  year={2021}
}