Dry mouth (xerostomia) is more than just an uncomfortable feeling. Saliva plays a critical role in protecting your teeth and gums, and when it is chronically in short supply, the consequences for your oral health can be significant.
What Causes Dry Mouth?
The most common cause of dry mouth is medication. Hundreds of commonly prescribed and over-the-counter drugs list dry mouth as a side effect, including antihistamines, antidepressants, blood pressure medications, and diuretics. Other causes include autoimmune conditions (particularly Sjogren syndrome), radiation therapy to the head and neck, diabetes, aging, and mouth breathing.
How Dry Mouth Affects Your Teeth
Saliva neutralizes acids, washes away food debris, and remineralizes enamel. Without adequate saliva, the pH of your mouth drops, bacteria proliferate more freely, and enamel becomes more susceptible to decay. Patients with chronic dry mouth have dramatically higher rates of cavities, particularly at the gumline and on the roots of teeth.
Relief Strategies
Sip water frequently throughout the day. Chew sugar-free gum to stimulate saliva flow. Use a humidifier at night. Avoid caffeine and alcohol, which are drying. Breathe through your nose rather than your mouth when possible. Alcohol-free mouthwash is better for dry mouth sufferers than alcohol-containing varieties.
Professional Management
If dry mouth is caused by medication, ask your doctor if there is an alternative with fewer dry-mouth side effects. Your dentist can apply prescription-strength fluoride treatments to protect your teeth and may recommend special saliva substitutes. More frequent dental visits may be necessary to stay ahead of decay. Tell us at your next Smileworks Dental appointment if dry mouth is a concern.