Tooth decay is the breakdown of tooth enamel. Enamel is the hard outer surface of a tooth. Tooth decay can lead to cavities.
A baby's first tooth often appears between 5 and 7 months of age. Some babies get their first tooth a little earlier and others a little later. Here's what you need to know.
Periodontal disease is a serious bacterial infection. It destroys the gums and the nearby tissues of the mouth.
Thumbsucking is normal in infants and young children. It shouldn't cause any permanent problems if your child stops by age 5.