Hyperdontia is the condition of having extra teeth or teeth that appear in addition to the normal number of teeth. They can show in any area of the dental arch and can affect any dental organ. The technical definition of hyperdontia is any tooth or structure that is made from tooth germ in a surplus of usual number for any given region of the dental arch.
They can be any number of teeth and can occur at any place in the dental arch. They may be symmetrical or nonsymmetrical. There is evidence of hereditary factors and environmental factors leading to this condition. Hypodontia is seen in many disorders, including Gardner's syndrome, and cleidocranial dysostosis.
