Healthy teeth and gums make it easy for you to eat well  and enjoy good food. Several problems can affect the health of your mouth, but good care should keep your teeth and gums strong as you age.
Teeth are covered in a hard, outer coating called enamel. Every day, a thin film of bacteria called dental plaque builds up on your teeth. The bacteria in plaque produce acids that can harm enamel and cause cavities. Brushing and flossing your teeth can prevent decay, but once a cavity forms, a dentist has to fix it.
Use fluoride toothpaste to protect your teeth from decay. If you are at a higher risk for tooth decay (for example, if you have a dry mouth because of a condition you have or medicines  you take), you might need more fluoride. Your dentist or dental hygienist may give you a fluoride treatment during an office visit or may tell you to use a fluoride gel or mouth rinse at home.
Gum disease begins when plaque builds up along and under your gum line. This plaque causes infections that hurt the gum and bone that hold your teeth in place. Gum disease may make your gums tender and more likely to bleed. This problem, called gingivitis, can often be fixed by brushing and flossing every day.
A more severe form of gum disease, called periodontitis, must be treated by a dentist. If not treated, this infection can ruin the bones, gums, and other tissues that support your teeth. Over time, your teeth may have to be removed.
To prevent gum disease:
There is a right way to brush and floss your teeth. Every day:
People with arthritis  or other conditions that limit hand motion may find it hard to hold and use a toothbrush. Some helpful tips are:
See your dentist if brushing or flossing causes your gums to bleed or hurts your mouth. If you have trouble flossing, a floss holder may help. Ask your dentist to show you the right way to floss.
Hold floss as shown.
Use floss between upper teeth.
Use floss between lower teeth.
Sometimes, false teeth (dentures) are needed to replace badly damaged teeth. Partial dentures may be used to fill in one or more missing teeth. Dentures may feel strange at first. In the beginning, your dentist may want to see you often to make sure the dentures fit. Over time, your gums will change shape, and your dentures may need to be adjusted or replaced. Be sure to let your dentist handle these adjustments.
Be careful when wearing dentures, because it may be harder for you to feel hot foods and drinks or notice bones in your food. When learning to eat with dentures, it may be easier if you:
Keep your dentures clean and free from food that can cause stains, bad breath, or swollen gums. Brush them every day with a denture-care product. Take your dentures out of your mouth at night, and soak them in water or a denture-cleansing liquid.
Dry mouth happens when you don’t have enough saliva, or spit, to keep your mouth wet. It can make it hard to eat, swallow, taste, and even speak. Dry mouth can accelerate tooth decay and other infections of the mouth. Many common medicines can cause this problem.
There are things you can do that may help. Try sipping water  or sugarless drinks. Don’t smoke, and avoid alcohol  and caffeine. Sugarless hard candy or sugarless gum that is a little tart may help. Your dentist or doctor might suggest using artificial saliva to keep your mouth wet.
Cancer  of the mouth can grow in any part of the mouth or throat. It is more likely to happen in people over age 40. A dental checkup is a good time for your dentist to look for signs of oral cancer. Pain  is not usually an early symptom of the disease. Treatment works best before the disease spreads. Even if you have lost all your natural teeth, you should still see your dentist for regular oral cancer exams.
You can lower your risk of getting oral cancer in a few ways:
Dental care can be costly. Medicare does not cover routine dental care, and very few States offer dental coverage under Medicaid. You may want to check out private dental insurance for older people. Make sure you are aware of the cost and what services are covered. The following resources may help you find low-cost dental care:
American Dental Association
Health Resources and Services Administration Information Center
For more information on health and aging, contact:
National Institute on Aging Information Center
P.O. Box 8057
Gaithersburg, MD 20898-8057
firstname.lastname@example.org  (email)
Visit www.nihseniorhealth.gov , a senior-friendly website from the National Institute on Aging and the National Library of Medicine. This website has health and wellness information for older adults, including information about dry mouth . Special features make it simple to use. For example, you can click on a button to make the type larger.
National Institute on Aging
National Institutes of Health
U.S. Department of Health and Human Services