Head and neck cancer (HNC), representing 3% of all cancers, has been ranked as the sixth to eighth most common cancer type, with increasing global prevalence. 1 Despite advances in treatment, the mortality and morbidity rates remain high. 2 More than 70% of patients with HNC require radiotherapy (RT). 3,4 Oral complications (both acute and chronic effects) are common in patients receiving RT involving the oral cavity, including mucositis, infection, saliva change, fibrosis, sensory dysfunction, dental caries, periodontal disease and osteoradionecrosis. 5 Osteoradionecrosis, the most severe chronic complication, is difficult to treat clinically and is painful for patients. 6 Patients receiving head and neck RT should be dentally consulted before initial RT treatment to establish an appropriate oral

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