“Cavities, or tooth decay, is the destruction of your tooth enamel…”
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A cavity is a small hole in a tooth, as this article explains in common sense language. The source of cavities is mostly forms of sugar, which adhere to the teeth in the form of plaque. Acid from the plaque attack tooth enamel leading to cavities. Take a look at this article for a good explanation.
Dr. Rodney D. Chowning, DDS, General Dentistry, Denton, TX