Abstract
Head and neck cancer is considered as a very severe and mutilating disease. Nowadays, radiotherapy is the most important non-surgical treatment to fight cancer. Nonetheless, it causes some adverse effects to the patient and may harm the oral cavity, when the tumors are located in the area of the head and neck, causing mucositis, xerostomia, blazing, jock-jaw, carie, dysphagia, and osteora…