Xerostomia Induced by Radiotherapy: A Review
Keywords:
Xerostomia, Radiotherapy, Salivary gland dysfunction, Head and neck cancer, Radiation-induced oral complicationsAbstract
Xerostomia, or dry mouth, is a common and distressing side effect of radiotherapy in patients with head and neck cancer. Radiation therapy, while effective in tumour control, inadvertently damages salivary gland tissues, leading to reduced salivary flow and altered composition. This article reviews the anatomy and physiology of salivary glands, mechanisms of radiation-induced glandular dysfunction, clinical implications, and contemporary preventive and therapeutic strategies.