Efficacy of MUCIPLIQ on the Incidence of Radio-chemotherapy-induced Mucositis in Patients Suffering From Oral Cancer

Inclusion Criteria: * Patient suffering from an upper aerodigestive tract carcinoma treated by radiotherapy alone or radiotherapy associated with a concomitant platine-salts-based chemotherapy ; * Patient suffering of an upper aerodigestive tract carcinoma without entrance or located in the oral cavity, in the oropharynx or in the rhinopharynx ; * Patient age of 18 years old or higher ; * Writing informed consent to participate to the trial ; * Patient affiliated to the French social security system. Exclusion Criteria: * Treatment by non-standard fragmentation (concentrate irradiation) * Carcinoma located in the hypopharynx or in the larynx ; * Known hypersensitivity to heparinoids ; * Patient who already benefited from a radiotherapy treatment ; * Patient who already benefited from a chemotherapy treatment. Patients who benefited from neoadjuvant chemotherapy as part of their upper aerodigestive tract carcinoma care, may be included if it was held at least 4 weeks before the inclusion visit ; * Patient participating to another biomedical research ; * Pregnant woman, breastfeeding woman, parturient or likely to be ; * Patient deprived of freedom, under supervision or guardianship ; * Patient unable to attend to scheduled medical monitoring due to geographical, social or mental reasons