@misc{indiciae92304751b901,
  title = {Failed root canals: the case for apicoectomy (periradicular surgery).},
  author = {Thomas von Arx},
  year = {2005},
  doi = {10.1016/j.joms.2005.02.019},
  url = {https://pubmed.ncbi.nlm.nih.gov/15944982/},
  note = {Source identifier: 15944982}
}