ABSTRACT
The autogenous tooth transplantation is a viable option for tooth replacement. The tooth indicated for transplantation depends on the development of its root that should have growth up to two-third with open apex. This condition allows the replacement of lost teeth or ectopically erupted tooth in children and young patients. This case report presents a clinical case of autotransplantation of a premolar in a 19-year-old female, who had the ectopically erupted tooth near the lower molar. The procedure involved transplantation of lingually erupted mandibular right second premolar into the edentulous space of missing premolar. The concept of a traumatic extraction was used, disruption of the root sheath was avoided with the minimal time interval for replacement. After replacement tooth splinting was done and followed for 6 months. The tooth was found nonresponsive, endodontic treatment was done. This report reveals successful transplantation of a mandibular premolar into its own place.