Bilateral Fusion of the Mandibular Primary Incisors: A Case Report

Fusion is a developmental anomaly characterized by the union of two adjacent teeth. Although its etiology is not exactly known, it is believed that some physical forces or pressures cause the contact of developing teeth. Bilateral mandibular fusion of the primary incisors is a rare event, occurring with a prevalence of less than 0.04 percent. Fusion teeth may contribute to esthetic concerns, space problems, occlusal disturbances, and delayed eruption of permanent successors. Hence, careful monitoring of the condition is recommended. An unusual case of bilateral fusion in primary mandibular incisor region in a four year old boy is reported.