Oral Surgery · single question
Which of the following is the LEAST likely contributor to his xerostomia?
Show answer and explanation
Correct answer: B. Radiation therapy to the pelvic area
Xerostomia from radiation requires direct irradiation of the salivary glands (typically for head-and-neck cancer). Pelvic radiation for prostate cancer is anatomically remote from the major salivary glands and would not cause xerostomia. Polypharmacy with anticholinergics, opioids, antidepressants, antihypertensives, and chronic dehydration are the most common causes.