Tooth decay (dental caries) is damage to a tooth that can happen when decay-causing bacteria in your mouth make acids that attack the tooth’s surface, or enamel. This can lead to a small hole in a tooth, called a cavity. If tooth decay is not treated, it can cause pain, infection, and even tooth loss.
People of all ages can get tooth decay once they have teeth—from childhood through the senior years.
Young children are at risk for “early childhood caries,” sometimes called baby bottle tooth decay, which is severe tooth decay in baby teeth.
Because many older adults experience receding gums, which allows decay-causing bacteria in the mouth to come into contact with the tooth’s root, they can get decay on the exposed root surfaces of their teeth.
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