Root hypoplasia: an unusual sequela to primary tooth trauma.

The traumatic injury to primary teeth has been associated with diverse consequences in permanent dentition. The root abnormalities in permanent teeth are relatively rare. An unusual and rare case of sequelae to primary tooth trauma has been presented here. The complexity of the impact which occurred at the age of 4 years and 8 months resulted in root hypoplasia in 11, 21, root duplication in 12 and avulsion of 22 tooth bud.