Unilateral double teeth in primary dentition

Fusion of primary teeth- An odontogenic anomaly

“…Fused teeth may involve two separate or conjoined pulp chambers, with two fused root canals or two independent endodontic systems. 1,9 In the present case, a groove was noticed between the crowns of 82 and 83 with complete fusion of crowns and roots but having two separate root canals.…”

“…Other theory suggests that the fusion results from embryological persistence of the inter-dental lamina between two germs. 1 The other dental anomaly associated with number of teeth is gemination, which represents division of a single tooth germ by invagination, resulting in incomplete formation of two teeth. In the present case, the primary mandibular teeth i.e., 82 and 83 showing fusion are succeeded by normally developing successors.…”

“…1 The union of two normally separated tooth germs results in a rare complex developmental anomaly called Fusion. The fused tooth may be normal or larger in size.…”