1. Lecturer, Department of Restorative Dentistry, University College Cork, University Dental School and Hospital, Wilton, Cork
2. Senior Lecturer/Consultant, Department of Restorative Dentistry, University College Cork, University Dental School and Hospital, Wilton, Cork, Republic of Ireland
3. Reader/Consultant, Department of Restorative Dentistry, Queen's University of Belfast, School of Clinical Dentistry, Royal Victoria Hospital, Belfast BT12 6BP
4. Consultant and Honorary Senior Lecturer, Department of Restorative Dentistry, Queen's University of Belfast, School of Clinical Dentistry, Royal Victoria Hospital, Belfast, BT12 6BP
5. Lecturer, Dublin Dental Hospital and Practice Limited to Periodontics, Dublin, Republic of Ireland