Follow these illustrated step-by-step instructions to learn how to floss.

Here are images that show the steps of effective brushing.

Precancerous oral lesions are abnormal cell growths in or around the mouth. They may become cancer. Cancerous oral lesions are life-threatening cell changes in the mouth. These lesions need to be found early to give you a better chance for a cure.

Periodontal disease is an infection of the gums and tissues supporting the teeth. If not treated, it often gets worse. Bone damage and tooth loss can occur. Regular self-care and dental visits can help prevent or control periodontal disease.

Studies have shown that folic acid can prevent certain birth defects. And it now seems that this vitamin may even reduce the risk of heart disease.

Vitamin C is also called ascorbic acid and ascorbate. This vitamin has many benefits. Vitamin C is an antioxidant. This means that it fights cell damage in the body. Damaged cells increase the risk of cancer and heart disease. Vitamin C may help you resist these diseases. But does it help cure the common cold? Probably not.

Calcium is a mineral that helps us make strong bones and teeth. Most of the calcium in our bodies is in our bones. We spend almost half of our lives (30 to 35 years) building to a peak bone mass. Taking in enough calcium helps younger people build strong bones. Maintaining a safe calcium level helps older people limit bone loss.

We need vitamins to live. We also need certain minerals. Together, these substances, which are naturally found in food, help our bodies grow and function. At times, adding vitamins and minerals to your diet can give your body a boost. But supplements alone cannot provide all that you need to stay healthy.

Healthy lifestyle choices can help lower your risk for cancer and other diseases. Learn more about these healthy choices, from quitting smoking to getting regular cancer screenings.

If your surgeon has given you a new airway during surgery, it may be in place for only a short time while you heal. Or if your larynx has been removed, you'll continue breathing through this new airway. In either case, your healthcare team will help you adjust.