Interdisciplinary treatments in patients having endodontic and orthodontic problems are of two way approach requiring involvement of both the specialties from diagnosis to the completion of treatment. The roles of endodontist during orthodontic treatment have expanded because of increased awareness. There are two major areas where endodontic and orthodontic interventions share a common ground - One is orthodontic treatment affecting the tooth being moved and some response may be noted in the pulp tissue; and the second is adult and mutilated cases where orthodontic treatment is necessary to gain a desirable result when endodontically involved.