
Tooth decay occurs when foods containing carbohydrates (sugars and starches), such as **breads, cereals, milk, soda, fruits, cakes, or candy** are left on the teeth. Bacteria that live in the mouth digest these foods, turning them into acids. The bacteria, acid, food debris, and saliva combine to form plaque, which clings to the teeth. The acids in plaque dissolve the enamel surface of the teeth, creating holes in the teeth called cavities.
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