1. Consultant in Restorative Dentistry, Barts Health NHS Trust, Dental Institute, London
2. Specialist Registrar in Restorative Dentistry, Leeds Dental Institute
3. Clinical Lecturer in Restorative Dentistry, Leeds Dental Institute
4. Consultant in Restorative Dentistry, Leeds Dental Institute
5. Consultant Oral and Maxillofacial Surgeon, Pinderfields General Hospital, Aberford Road, Wakefield, WF1 4DG