@misc{indiciae21a1d46873bc,
  title = {Two in-office bleaching systems: a scanning electron microscope study.},
  author = {J Gultz and J Kaim and W Scherer and H Gupta},
  year = {1999},
  url = {https://pubmed.ncbi.nlm.nih.gov/10650376/},
  note = {Source identifier: 10650376}
}