Dry mouth, or xerostomia (zeer-o-STOE-me-uh), refers to any condition in which your mouth is unusually dry. Most often, dry mouth is the result of a decrease in saliva produced by the glands in your mouth (salivary glands), and it's frequently a side effect of medication. Less often, dry mouth may be caused by a condition that directly affects the salivary glands.
Dry mouth is a common problem. It can range from being merely a nuisance to something that has a major impact on your general health and the health of your teeth, as well as your appetite and enjoyment of food.
Saliva helps prevent tooth decay by neutralizing acids produced by bacteria, limiting bacterial growth and washing away food particles. Saliva also enhances your ability to taste and makes it easier to swallow. In addition, enzymes in saliva aid in digestion.
Treatment for dry mouth depends on the cause.
May 10, 2014
- Dry mouth. National Institute of Dental and Craniofacial Research. http://www.nidcr.nih.gov/oralhealth/topics/drymouth/drymouth.htm. Accessed Feb. 3, 2014.
- Dry mouth? Don't delay treatment. Food and Drug Administration. http://www.fda.gov/ForConsumers/ConsumerUpdates/ucm254273.htm. Accessed Feb. 3, 2014.
- Xerostomia. The Merck Manuals: The Merck Manual for Health Care Professionals. http://www.merckmanuals.com/professional/dental_disorders/symptoms_of_dental_and_oral_disorders/xerostomia.html. Accessed Feb. 3, 2014.
- Furness S, et al. Interventions for the management of dry mouth: Non-pharmacological interventions. Cochrane Database of Systemic Reviews. http://onlinelibrary.wiley.com/doi/10.1002/14651858.CD009603.pub3/abstract. Accessed Feb. 3, 2014.
- Slippery elm. National Medicines Comprehensive Database. http://www.naturaldatabase.com. Accessed Feb, 11, 2014.
- Electroacupuncture for radiation-induced chronic dry mouth. National Cancer Institute. http://www.cancer.gov/clinicaltrials/featured/trials/MAYO-MCS285. Accessed Feb. 3, 2014.
- Bader JD, et al. Results from the Xylitol for Adult Caries Trial (X-ACT). The Journal of the American Dental Association. 2013;144:21.
- Wilkinson JM (expert opinion). Mayo Clinic, Rochester, Minn. Feb. 10, 2014.
- Bergstrom LR (expert opinion). Mayo Clinic, Scottsdale, Ariz. Feb. 10, 2014.
- Salinas TJ (expert opinion). Mayo Clinic, Rochester, Minn. Feb. 10, 2014.
- Ship JA, et al. Safety and effectiveness of topical dry mouth products containing olive oil, betaine, and xylitol in reducing xerostomia for polypharmacy-induced dry mouth. Journal of Oral Rehabilitation. 2007;34:724.
- Marshmallow. National Medicines Comprehensive Database. http://www.naturaldatabase.com. Accessed Feb. 11, 2014.