What Is a Cavity?
A cavity is what you get from
tooth decay — damage to a tooth. Decay can affect the outer coating of a tooth (called enamel) and the inner layer (called dentin).
Cavity Signs and Symptoms
The symptoms of a cavity will depend on how large it is and where it is in your mouth. You may not have any symptoms at first. They’ll get worse as the cavity gets larger, including:
Pain or a toothache that happens without warning
Pain when you eat or drink sweet, hot, or cold things
Holes or pits in your teeth
Black, white, or brown tooth stains