Most people know that diabetes means that the body cannot produce enough insulin. But what people may not know is how the disease can impact oral health.

According to the American Diabetes Association, more than 14 million Americans currently suffer from the disease, while 6.2 million cases remain undiagnosed. And that number, say experts, may climb as high as 31 million by the year 2050.

Most diabetics understand the risks and complications associated with the disease. But one condition that may not get much attention is xerostomia, or dry mouth, which is caused by the mouth not producing enough saliva.

Saliva contains enzymes and proteins that help control the bacteria in our mouths to help prevent oral infections, dental decay and gum disease. But in diabetics, higher sugar levels in the blood and saliva encourage bacterial growth.

"There is an increased risk for poor oral health in diabetics," said Dr. Sol Silverman, professor of oral medicine at University of California, San Francisco, who emphasizes the importance of diet and blood sugar control, good oral hygiene and maintaining mouth moisture for comfort and control of oral disease.

In addition, dental researchers say there may be a link between dry mouth and medications used to treat diabetics. According to recent studies, three-fourths of those who suffer from diabetes also have high blood pressure, and most drugs used to treat hypertension can cause the salivary glands to produce less saliva.

Dryness can also be intensified by the use of other drugs, such as antidepressants and antihistamines.

For diabetics, it is a vicious cycle. But help is available. Products have been developed to help protect a diabetic or dry mouth sufferer. Biotene dry mouth toothpaste, mouthwash, chewing gum and Oral Balance dry mouth moisturizing gel are especially made for these conditions. These antibacterial products contain salivary enzymes and proteins, which boost and replenish saliva's defense system while inhibiting harmful bacteria growth, and fight the causes and effects of gingivitis, an inflammation of the gums. The products are alcohol-free so they won't irritate an already sensitive dry mouth. Biotene and Oral Balance are both available over the counter.