Accompaniment of Patients by Dental Assistants in the Evaluation of Oral Hygiene During and After Radiotherapy Treatment.

"Inclusion visit (before radiotherapy treatment):~* oral hygiene education (prevention of complications related to radiotherapy) will be provided by the dental assistant.~* a written information guide on oral hygiene will be given to the patient.~* the questionnaire entitled Motivation and oral hygiene behavior will be completed by the patient.~End of study visit (three months post-radiotherapy):~• The Motivation and oral hygiene behavior and the satisfaction questionnaires will be completed by the patient."