title: Maxillary and mandible contouring in patients with a head and neck area irradiation.
abstract: OBJECTIVE
  Dental care is crucial after irradiation of the head and neck. This care may include dental restoration, extractions, and prosthetic implantation or prosthesis adjustment. To perform these procedures safely, dentists need to know the delivered radiation dose delivered to the relevant part of the mandible and/or maxilla. We propose a simple, fast, and useful contouring technique to aid accurate recording of radiation therapy dose to the mandible and maxilla.
  
  
  METHODS
  The maxilla and mandible of 2 patients, 1 dentate and 1 edentulous, have been contoured on computed tomography planning scans. The jaw has been divided into sextants (3 segments in both the mandible and maxilla) using bony landmarks.
  
  
  RESULTS
  We have developed a contouring atlas to aid radiation oncologists in delineating the maxilla and mandible allowing accurate recording of dose to each sextant and meaningful communication with their dental colleagues.
  
  
  CONCLUSIONS
  Delineation of the maxilla and mandible is important if we are to improve communication between radiation oncologists and dentists regarding radiation and risk to these structures. Our method should not increase the time to delineate the organs at risk and target volumes in the head and neck area and could improve the safety of subsequent dental treatments.
authors.affiliation: Dental Faculty, Strasbourg, France.
authors.forename: Mélanie
authors.initials: M
authors.lastname: Rouers
authors.affiliation: University Radiation Department, Strasbourg, France.
authors.forename: Delphine
authors.initials: D
authors.lastname: Antoni
authors.affiliation: Radiotherapy Department, North Middlesex University Hospital NHS Trust, London, England.
authors.forename: Anna
authors.initials: A
authors.lastname: Thompson
authors.affiliation: University Radiation Department, Strasbourg, France.
authors.forename: Pierre
authors.initials: P
authors.lastname: Truntzer
authors.affiliation: Radiation Oncology Department, University of Rochester Medical Center, Rochester, New York.
authors.forename: Qiu C
authors.initials: QC
authors.lastname: Haoming
authors.affiliation: University Radiation Department, Strasbourg, France.
authors.forename: Cyrielle
authors.initials: C
authors.lastname: Bourrier
authors.affiliation: University Radiation Department, Strasbourg, France.
authors.forename: Philippe
authors.initials: P
authors.lastname: Meyer
authors.affiliation: Dental Faculty, Strasbourg, France.
authors.forename: Sarah
authors.initials: S
authors.lastname: Dubourg
authors.affiliation: University Radiation Department, Strasbourg, France.
authors.forename: Valérie
authors.initials: V
authors.lastname: Ganansia
authors.affiliation: University Radiation Department, Strasbourg, France.
authors.forename: Sébastien
authors.initials: S
authors.lastname: Guihard
authors.affiliation: Dental Faculty, Strasbourg, France.
authors.forename: Fabien
authors.initials: F
authors.lastname: Bornert
authors.affiliation: University Radiation Department, Strasbourg, France. Electronic address: gnoel@strasbourg.unicancer.fr.
authors.forename: Georges
authors.initials: G
authors.lastname: Noel
mesh_terms: D006257:Head / Q000528:radiation effects*; D006258:Head and Neck Neoplasms / Q000532:radiotherapy*; D006801:Humans; D008334:Mandible / Q000601:surgery*; D008437:Maxilla / Q000601:surgery*; D009333:Neck / Q000528:radiation effects*