Baby bottle tooth decay is the progressive breakdown of teeth in an infant or toddler. The decay usually begins in the front teeth and moves back to the molars.
Tooth decay occurs when the enamel, which is the protective coating on the teeth, breaks down. The mouth naturally has bacteria in it. When a baby drinks liquids through a bottle, the liquids can pool near the gums and teeth. Most liquids contain sugars. In fact, most foods that people eat ultimately break down to become sugar.
The sugars and bacteria combine to form a substance called dental plaque. When the bacteria break down the sugars, acids are formed. These acids can erode the enamel on the teeth. The result is damage to the teeth. As the damage progresses, the decay can lead to:
Baby bottle tooth decay occurs when any liquid other than water is in contact with the teeth for a long time. Sweetened liquids are especially harmful. Milk, formula, fruit juice, and soft drinks can all cause problems.
A child who has a bottle of sweetened liquids several times a day is at risk for tooth decay. Any child who is allowed to fall asleep with a bottle is also at risk.