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Definition
By Mayo Clinic staff
Cavities are decayed areas of your teeth that develop into tiny openings or holes. Cavities, also called tooth decay or caries, are caused by a combination of factors, including not cleaning your teeth well, frequent snacking and sipping sugary drinks.
Cavities and tooth decay are one of the most common health problems around the world. They're especially common in children, but anyone who has teeth can get cavities, including infants and older adults.
If cavities aren't treated, they get larger and the decay can cause a severe toothache, infection, tooth loss and other complications. Regular dental visits and good brushing and flossing habits go a long way toward preventing cavities and tooth decay.
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