1. StR in Orthodontics, University of Manchester Dental Hospital, Higher Cambridge Street, Manchester, M15 6HF, UK
2. StR in Othodontics, University of Manchester Dental Hospital, Higher Cambridge Street, Manchester, M15 6HF, UK
3. Honorary Clinical Teaching Fellow/Consultant Orthodontist, University of Manchester Dental Hospital, Higher Cambridge Street, Manchester, M15 6HF, UK
4. Consultant in Restorative Dentistry, University of Manchester Dental Hospital, Higher Cambridge Street, Manchester, M15 6HF, UK
5. Consultant in Orthodontics, University of Manchester Dental Hospital, Higher Cambridge Street, Manchester, M15 6FH, Salford Royal NHS Foundation Trust and Northenden House Orthodontics, Sale Road, Manchester M23 0DF, UK