@misc{indiciae1692988ed3c0,
  title = {Mandibular utility arch. The basic arch in the light progressive technique.},
  author = {R M Ricketts and R W Bench and J J Hilgers},
  year = {1972},
  url = {https://pubmed.ncbi.nlm.nih.gov/4519806/},
  note = {Source identifier: 4519806}
}