Ameloblastomas are enigmatic group of oral tumors.  The name implies a resemblance to cells of the enamelforming organ .The tumor is often asymptomatic, presenting as a slowly enlarging facial swelling or an incidental finding on a radiograph. The tumor is considered a rarity in the young, but the tumor grows slowly and probably starts to develop in childhood. The treatment of ameloblastoma presents some special problems in children, growth of the jaw, different incidence, behavior, and prognosis of the tumor in children make the surgical consideration different from adults. However, only a few articles discuss ameloblastomas in children and adolescents. Considering the rarity of the lesion, we report here an interesting and unique case of unicystic and solid ameloblastoma of the mandible occurring in a 11 year old boy and 12 year old boy respectively with review of literature of Pathogenesis in children.