Double mesiodens concomitant with missing lateral incisors: a case report

One of the extremely rare conditions is the simultaneous occurrence of both hypodontia and hyperdontia in the same individual, known as hypo-hyperdontia or the concomitant hypodontia and hyperdontia (CHH). The prevalence of hypo-hyperdontia is estimated between 0.002% and 3.1%. The etiology of this unusual condition still remains undetermined.

In the present case we report a patient with double mesiodens, coincide with missing primary and permanent lateral incisors.

Both mesiodens were extracted to prevent its adverse effects on the permanent dentition.