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Cavity
01
a hole in a tooth that is caused by decay
What is a "cavity"?
A cavity is a hole that forms in a tooth because of tooth damage. It occurs when bacteria in the mouth produce acids that destroy the tooth enamel, which is the hard outer layer of the tooth. If left untreated, cavities can lead to pain, infection, and even tooth loss. Regular brushing, flossing, and dental check-ups are essential in preventing cavities.
Examples
The dentist found a small cavity on her molar during the routine checkup.
He felt sharp sensitivity when drinking cold water and worried it might be a cavity.
02
a natural empty space or hollow area inside the body
Examples
Air passes through the nasal cavity when breathing.
The heart sits inside a chest cavity.
Lexical Tree
cavity
cave
