Effectiveness of transcutaneous electrical nerve stimulation therapy in managing radiation-induced xerostomia in head and neck cancer patients

Objectives: This study aimed to evaluate the effectiveness of TENS therapy in improving salivary flow rate and reducing xerostomia severity in head and neck cancer patients. Methods: Twenty-five post-radiotherapy patients received bilateral TENS therapy twice weekly for three months. Salivary flow rate, Chalacombe scale scores, and oral hygiene index scores were recorded at baseline and follow-ups. Results: Significant improvements were observed in salivary flow, xerostomia symptoms, and oral hygiene status, with sustained benefits at six months. Conclusions: TENS therapy is a safe and effective non-invasive modality for managing radiation-induced xerostomia.