title: [Children who received a radiotherapy treatment of the cranio-cervico-facial region: appraisal of the orthodontic treatment need].
abstract: BACKGROUND
  Currently, 1 out of 900 adults from the ages of 16 to 44 is a survivor of childhood cancer. The global rate of survival for all types of childhood cancer is close to 80% and progress in treatment and care continues to offer promising results. In the years following treatment, these children, just like other healthy children, should have access to orthodontic care in spite of their chronic health problems.
  
  
  OBJECTIVE
  A transverse epidemiological study was conducted at the Leon Bernard Cancer Treatment Center in Lyon in order to respond to these requests and to assist orthodontists with the therapeutic difficulties presented by these patients. Our objective was to identify the orthodontic treatment required for children 7 years old or older who received antineoplastic therapy with radiation of the cranio-cervico-facial region.
  
  
  RESULTS
  The results show that children who received radiation therapy in the cranio-facial region presented delayed growth, facial asymmetry in 74% of the cases, overbite and overjet increased respectively in 70% and 61% of the cases. Dental discrepancies in development were present in 83% of the patients who presented with stunted teeth, premature closing of the apices and hypoplasias. We found sialopathy such as reduced saliva flow rate. Finally, considerable treatment was necessary in 61% of the cases and moderate treatment for 17% of the cases, because of missing teeth, retained deciduous teeth or an increased overjet.
authors.affiliation: 142 avenue des frères Lumière, 69008 Lyon, France.
authors.forename: Caroline
authors.initials: C
authors.lastname: Akharzouz
authors.forename: Sarah
authors.initials: S
authors.lastname: Chauty
authors.forename: Anne-Gaëlle
authors.initials: AG
authors.lastname: Bodard
mesh_terms: D000848:Anodontia; D002648:Child; D006801:Humans; D008310:Malocclusion / Q000628:therapy; D057887:Overbite; D014094:Tooth, Deciduous