@misc{indiciaef1ba57ad234e,
  title = {Scanning electron microscope study comparing four root canal preparation techniques in small curved canals.},
  author = {F Heard and R E Walton},
  year = {1997},
  doi = {10.1046/j.1365-2591.1997.00090.x},
  url = {https://pubmed.ncbi.nlm.nih.gov/9477822/},
  note = {Source identifier: 9477822}
}