Orthodontic treatment for adults has been the fastest growing area in orthodontic practice in recent years. The desire to improve facial aesthetics is considered the main reason why individuals seek treatment later in life. Another reason for the increased demand for adult orthodontics is the need for tooth repositioning to make restoration and/or the replacement of teeth easier and more effective and to correct some of the side-effects of periodontal disease. Unlike the young patient-previously the main consumer of orthodontic services-the adult patient may require a team approach involving the orthodontist, the oral and maxillofacial surgeon, the periodontist, and the restorative or general dentist. This paper describes the underlying reasons for adopting a multidisciplinary approach, which may be required to meet the needs of many adult patients. The interfaces between the various specialties are illustrated by means of selected cases and the benefits of the team approach and principles of management are highlighted.