Dental caries or cavities, more commonly known as tooth decay, are caused by a breakdown of the tooth enamel. This breakdown is the result of bacteria on teeth that breakdown foods and produce acid that destroys tooth enamel and results in tooth decay. In addition to fluoridated water, good oral hygiene can help prevent tooth decay.
The acids in plaque remove minerals in your tooth's hard, outer enamel. This erosion causes tiny openings or holes in the enamel — the first stage of cavities. Once areas of enamel are worn away, the bacteria and acid can reach the next layer of your teeth, called dentin.
Related Journals of Dental Cavities
Periodontics and Prosthodontics: open access, Dental Implants and Dentures: open access, Australian Dental Journal, Dental caries : British Dental Journal