Bilaterally fused primary mandibular incisors--a case report.

Fusion of teeth results from abnormal events in the embryologic development of teeth. In most cases the clinical and radiological findings allow only a presumptive diagnosis to be established since the specific terminology described refers to the etiology of the process, which often cannot be established. An unusual case of bilateral fusion in primary mandibular incisor region in a four-year-old boy is reported.