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Dental caries

Tooth decay, also known as dental decay or dental caries, is when acids in your mouth dissolve the outer layers of your teeth.
Causes of tooth decay
Tooth decay occurs when a sticky acidic film called plaque builds up on your teeth and begins break down the surface of your teeth.
Treating tooth decay
The treatment for tooth decay largely depends on how advanced the problem is.
Preventing tooth decay
Maintaining good oral hygiene through brushing and flossing your teeth is one of the most effective ways to prevent tooth decay.