1. Academic Clinical Fellow (Specialist Registrar) in Restorative Dentistry, Institute of Dentistry, Barts and The London School of Medicine and Dentistry, Turner Street, London
2. Honorary Consultant in Oral Pathology, Oral Pathology, Dental School Division, Turner Street, London
3. Professor of Periodontology, Dental Institute, King's College London, Floor 21 Tower Wing, Guy's Hospital, Great Maze Pond, London SE1 9RT, UK