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You hardly notice the moist environment of your mouth — unless it becomes uncomfortably dry. Some instances of dry mouth are quite normal — when you first wake in the morning after reduced saliva flow during sleep, when you're stressed, or when you're dehydrated and need fluids. But some are not normal — millions of people, in fact, suffer from a chronic inadequacy of saliva production and flow.
Chronic dry mouth (or xerostomia) can have a greater effect on your oral health than discomfort. Saliva performs a number of tasks for the body: its enzymes help break down food before digestion; its antimicrobial properties help reduce harmful bacteria and its buffering ability helps neutralize acid, both of which reduce the risk of tooth decay.
There are a number of causes for chronic dry mouth. One of the most common arises as a side effect of over 500 medications, both prescription and over-the-counter. The major contributors to dry mouth fall into three main types: antihistamines, used to treat allergies; diuretics, prescribed to cardiac patients to drain excess fluid; and antidepressants. Diseases like Diabetes, Parkinson's disease, or AIDS can also cause dry mouth. Some treatments can too — persons undergoing head or neck radiation or chemotherapy may experience dry mouth.
If you've noticed dry mouth over several days, it's a good idea to visit us for an exam. Our first step is to try to determine the extent and cause of the condition. Depending on what we find, we can then recommend a treatment path that includes some changes in habit and prescribed medications. For example, if lack of hydration is contributing to dry mouth, we would recommend drinking an adequate amount of water, as well as cutting back on caffeinated or acidic beverages. We might also prescribe medication to stimulate saliva flow. Consuming foods that contain xylitol, a natural sugar substitute, may also do the same.
It's also important that you maintain a good oral hygiene regimen and regular dental checkups and cleanings. Good oral hygiene and the proper treatment for chronic dry mouth will greatly reduce your risk of tooth decay and other diseases.
If you would like more information on the causes and treatment of dry mouth, please contact us or schedule an appointment for a consultation. You can also learn more about this topic by reading the Dear Doctor magazine article “Dry Mouth.”