Oral mucosal reaction
palate
ADVERSE EVENT
Patients were observed for the condition of the mucosa of the upper cheek, soft palate, and hard palate in the mouth before radiotherapy, at the end of 2, 4, and 6 weeks of radiotherapy, and 1 and 3 months after radiotherapy. Afterward, oral mucosa radiological responses were evaluated with the Common Terminology Criteria for Adverse Events (CTCAE) v.5.0 published by the US Department of Health and Human Services in November 2017.