The presence of a supernumerary tooth, particularly when seen in young children, is associated with a disturbance of the maxillary incisor region.

The study debating this also considered many other factors such as: the patient's age, number, morphology, growth orientation and position of the supernumerary tooth.

Alongside this issue, the presence of an extra tooth can impede the eruption of adjacent additional or normal teeth.

Therefore, the presence of a supernumerary tooth when found must be approached with the appropriate treatment plan, incorporating the likelihood of incisal crowding.

While a single excess tooth is relatively common, multiple hyperdontia is rare in people with no other associated diseases or syndromes.

[7] The formation of teeth begins during embryonic development and is a process that is highly regulated by various signaling pathways, which, if disrupted as a result of genetic mutations or environmental factors, can lead to developmental anomalies, including hyperdontia.

The dental lamina is a band of tissue in the developing oral cavity that gives rise to tooth buds.

For instance, cleidocranial dysplasia (CCD) is a genetic disorder that affects skeletal and dental development and is associated with the presence of supernumerary teeth.

[9] Furthermore, ancestral diets were often tougher and required more extensive chewing, meaning that being in the possession of extra teeth could help to facilitate the consumption of fibrous plant material and raw foods.

Hyperdontia is seen in a number of disorders, including Gardner's syndrome and cleidocranial dysostosis, where multiple supernumerary teeth develop.

The shapes include the following: When classified by position, a supernumerary tooth may be referred to as a mesiodens, a paramolar, or a distomolar.

The traditional method of removal is done by using bone chisels, although a more advanced technique has been found to be more beneficial, especially if surgery is required.

David DeVore Jr. gained internet fame after being filmed after removing a supernumerary tooth at the dentist.

Kalpana Balan, an Indian woman entered Guinness World Records for having the most teeth in a human mouth.

Agrippina the Younger, sister of Caligula, wife of Claudius, and mother of Nero, is said to have had a double canine in her right upper jaw, something that was seen as a sign of good fortune by the Romans.

Fabian Fournier, a 19th-century Canadian lumberjack (who is said to have inspired the American folklore figure Paul Bunyan) William Morgan (an anti-mason who was found dead under suspicious circumstances) was identified by his wife, as she recognized the body by his having "double teeth all around"[19] Freddie Mercury of Queen had four extra teeth in his upper jaw.

A poem by ancient Greek poet Ion describe the hero Heracles as having three rows of teeth.