15 percent to 4 percent of the population, can appear in anyone but are more often associated with people who have Gardner's syndrome (a rare genetic disorder), Down syndrome, or in those born with a cleft lip. 1 Supernumerary teeth appear twice as often in adult males as they do in adult females.

Are supernumerary teeth normal?

While a single excess tooth is relatively common, multiple hyperdontia is rare in people with no other associated diseases or syndromes. Many supernumerary teeth never erupt, but they may delay eruption of nearby teeth or cause other dental or orthodontic problems.

Is supernumerary teeth genetic?

Presence of multiple supernumerary teeth is thought to have genetic component. We report a rare case where multiple supernumerary teeth were seen without presence of any other syndrome in 3 generations; father, son, and two grandsons.