@misc{indiciae6cff7782ed32,
  title = {Directly placed esthetic restorative materials--the continuum.},
  author = {J O Burgess and B K Norling and H R Rawls and J L Ong},
  year = {1996},
  url = {https://pubmed.ncbi.nlm.nih.gov/9051949/},
  note = {Source identifier: 9051949}
}