1. Specialist Registrar in Orthodontics, Royal Berkshire Hospital (Reading) and Wexham Park Hospital (Slough), London, UK
2. Consultant Orthodontist/Honorary Senior Lecturer, Eastman Dental Hospital (UCLH NHS Foundation Trust) and UCL Eastman Dental Institute, Honorary Consultant, Great Ormond Street Hospital, London, UK
3. Clinical Lecturer in Fixed and Removable Prosthodontics, UCL Eastman Dental Institute, London, UK
4. Consultant Orthodontist, St George's Hospital and Kingston Hospital, London, UK