Histopathological examination of the specimen showed it to be a dentigerous cyst. Maxillofacial surgeon Dr. S.M. Balaji expertly removed the entire cystic lesion along with the lining with affected tooth in toto. Defective portion of the lower jaw was reconstructed using costochondral rib graft and bone protein rhBMP2. Following surgery the wound healed well and the patient was happy to be cured of his ailment.