According to the American Dental Association (ADA), people over age 55 are three times more vulnerable to tooth decay than children. What's more, dental deterioration may contribute to more serious health problems, such as cardiovascular disease and diabetic complications. With so much riding on your oral health, it's important to take measures to preserve it.

  The biggest problem for old and young alike is plaque, a film that forms on teeth. Plaque contains bacteria that convert food residue into acid, which eats away at teeth and inflames gums. Several factors combine to make dental health an even greater challenge for older adults.

• Gum recession. This natural process exposes the roots of your teeth. Because roots lack the protective enamel that coats your teeth above the gum line, they are more susceptible to decay.
• Medical conditions. High glucose levels associated with diabetes can promote bacterial growth, arthritis sufferers often lack dexterity which makes thorough brushing difficult and those with Alzheimer's disease may not remember to care for their teeth.
• Medications. Saliva helps neutralize plaque acids, strengthen enamel and wash food away, but many drugs, such as diuretics, antidepressants and high blood pressure medications, can reduce saliva production. 
• Lifestyle challenges. Lack of dental insurance, transportation difficulties, even fear of visiting the dentist may discourage older people from seeking proper oral care. 

  According to the ADA, several studies have linked gum disease to a variety of other health issues. Research suggests that plaque bacteria may enter the bloodstream and accumulate in blood vessels, thus contributing to the development of arteriosclerosis. Others believe that a build-up of plaque bacteria in the mouth can be inhaled and lead to pneumonia. Some experts have found that gum disease may increase the risk of poor blood sugar control in diabetics. 

  Because regular visits to the dentist are a relatively modern convenience, many older adults missed out on preventive dental care as children. It's not too late, however, to develop--or hone--good dental hygiene. 

• Brush twice a day. Plaque takes 16 to 24 hours to develop, so a thorough cleaning twice a day should keep harmful bacteria at bay. Saliva production slows down at night, so brush before you go to bed to minimize the bacteria that develop. 
• Use fluoride toothpaste. Fluoride slows the growth of plaque bacteria, toughens the root's surface and remineralizes teeth. 
• Floss once a day. Slide the floss between your teeth and gum line in a "C" shape, then along the side of each tooth to reach areas that your brush can't. 
• Visit the dentist twice a year. Your dentist can help prevent cavities and gum disease, as well as detect oral cancer in an early, treatable stage.

  Contact your physician for assistance in finding a dentist or for more tips on keeping your mouth healthy.