@misc{indiciaea6f82764d401,
  title = {[Changes in the enamel surface after calculus removal].},
  author = {H C Plagmann and M Wartenberg and T Kocher},
  year = {1989},
  url = {https://pubmed.ncbi.nlm.nih.gov/2702166/},
  note = {Source identifier: 2702166}
}