Tooth decay, also known as dental caries or cavities, is the breakdown of teeth due to acids made by bacteria. The cavities may be a number of different ...
Tooth decay is damage to a tooth caused by dental plaque turning sugars into acid. If plaque is allowed to build up, it can lead to problems, such as holes in the teeth (dental caries) and gum disease. Dental abscesses, which are collections of pus at the end of the teeth or in the gums, may develop.