Schizodontia in primary dentition: Report of 2 cases

Variation in the size and form of teeth is not an uncommon finding. Twinned teeth have been described under different terms and the terminology is often confusing. It occurs more frequently in the primary dentition than in the permanent dentition with no gender preference. Gemination may be defined as the incomplete division of a single tooth bud during development, resulting in increased tooth material, but not number, of teeth. The term schizodontia would only fit complete splitting, which results in “twinning” and thus leading to hyperdontia. Twinning is usually asymptomatic and is associated with poor esthetics, caries, malocclusions, arch-length discrepancies, periodontal disease, hyperdontia or hypodontia of the permanent successors, and eruption abnormalities.