1. Brook P, Shaw W C . The development of an index of orthodontic treatment priority. Eur J Orthod 1989; 11: 309–320.
2. Department of Health. Strategic commissioning of primary care orthodontic services. September 2006.
3. Department of Health. The NHS Plan: a plan for investment, a plan for reform. July 2000.
4. Department of Health. The NHS Improvement Plan: putting people at the heart of services. June 2004.
5. Department of Health. The National Health Service (General Dental Services) regulations 2005.