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A modified barium swallow is used to test your child's ability to swallow. It uses barium, a substance that makes organs show more clearly on X-rays. This test may be suggested if your child has problems swallowing food. Read on to learn more.

A colonoscopy is a test that lets a health care provider look inside the colon and rectum. A sigmoidoscopy is a shorter form of this test. Read on for details.

You have been told your child has a problem with their vertebrae. These are the bones that stack together to make up the spine. Spondylolysis is a crack (defect) in the back part of a vertebra. Spondylolisthesis is the slipping forward of a vertebra. Here is information on the causes, symptoms, diagnosis methods, and treatments.

Without glucose you wouldn't be able to study, play, or even eat or think. Too little glucose can make you feel sick. This is called low blood sugar (hypoglycemia).

Most people with diabetes are scared to give themselves insulin injections in the beginning. Even your parents were probably nervous giving you your first injections. But after a while, it became much easier.

Your mouth allows you to speak, breathe, and chew. This article shows specific parts of the mouth, with a helpful diagram.

Detailed information on fluoride.

Detailed anatomical description of the mouth, including a full-color, labeled illustration

Detailed information on periodontal disease, including types, symptoms, causes, and treatment.