@misc{indiciae6a88d4858800,
  title = {Ridge preservation: why not?},
  author = {G J Christensen},
  year = {1996},
  doi = {10.14219/jada.archive.1996.0279},
  url = {https://pubmed.ncbi.nlm.nih.gov/8642146/},
  note = {Source identifier: 8642146}
}