A cavity, also known as a dental caries, is a damage to a tooth that results in a hole or opening in the tooth enamel. Cavities are caused by bacteria that feed on the sugars in food and drinks, producing acids that dissolve the enamel. If left untreated, cavities can lead to pain, infection, and even tooth loss.
Dentists can fix tiny cavities by removing the decayed enamel and filling the hole with a filling material, such as composite resin or amalgam. Fillings can help to restore the tooth's strength and function, and prevent further decay. In some cases, a dentist may recommend a dental crown to protect a weakened tooth from further damage.
