@misc{indiciaee8f1de4defeb,
  title = {[Dense hydroxyapatite in periodontal defects].},
  author = {J Pita and J G Mira and S Chaikin and C Gibert},
  year = {1989},
  url = {https://pubmed.ncbi.nlm.nih.gov/2639686/},
  note = {Source identifier: 2639686}
}