@misc{indiciaed751fc1ee761,
  title = {Anterior teeth: esthetics and function.},
  author = {W D Heinlein},
  year = {1980},
  doi = {10.1016/0022-3913(80)90095-5},
  url = {https://pubmed.ncbi.nlm.nih.gov/6997466/},
  note = {Source identifier: 6997466}
}