An ectopically impacted premolar with a radiolucent defect.

: This is a case report of an ectopically impacted, mandibular left second premolar. Radiographically the tooth was observed to have a large radiolucency in the crown. The surgical, orthodontic and restorative management of the case is presented with a brief literature review. The histological report substantiated the previous literature by confirming that the defect was not carious.