1. Senior Clinical Lecturer/Honorary Consultant in Restorative Dentistry, Dundee Dental School, 2 Park Place, Dundee, DD1 4HR
2. General Dental Practitioner/Senior National Dental Adviser, King's Medical Centre, King Edward Street, Normanton, Wakefield, West Yorkshire, WF6 2AZ; Care Quality Commission, 151 Buckingham Palace Road, London, SW1W 9SZ
3. Clinical Director Hope Dental Centre, Rock City Mall, Mwanza, United Republic of Tanzania
4. Professor of Clinical Microbiology/Head of Dental School, University of Glasgow Dental School, 378 Sauchiehall Street, Glasgow, G2 3JZ