Paul Coulthard, BDS MFGDP(UK) MDS FDSRCS FDSRCS(OS) PhD, Dean for Dentistry and Director, Professor of Oral & Maxillofacial Surgery, Institute of Dentistry, Barts and The London School of Medicine and Dentistry, Queen Mary University of London, London, UK, Philip Sloan, BDS, PhD, FRCPath, FRSRCS, Consultant Histopathologist, Royal Victoria Infirmary, Newcastle upon Tyne; Honorary Professor, School of Dental Sciences, Newcastle University, UK, Elizabeth D. Theaker, BDS, BSc, MSc, MPhil, Senior Clinical Teaching Fellow in Oral Medicine; Senior Tutor for Undergraduate Dental Studies, The University of Manchester, UK and Anita Dr Sengupta, BDS PhD MFDS RCS DDMFR RCR FHEA, Senior Lecturer, Division of Dentistry, School of Medical Sciences, University of Manchester; Consultant in Dental and Maxillofacial Radiology, University of Manchester NHS Foundation Trust, Manchester, UK