Michael A.O. Lewis, PhD, BDS, FDSRCPS, FRCPath, FDSRCS (Eng), FFGDP (UK), FHEA is Professor of Oral Medicine at the School of Dentistry, Cardiff University in Wales. He is also Director of the Dental Clinical Board of Cardiff & Vale University Health Board. He was the Dean of the School of Dentistry in Cardiff from 2010-2017 and Dean of the Dental Faculty of the Royal College of Physicians & Surgeons of Glasgow from 2007-2010. Dr Lewis is a past President of both the British Society of Oral Medicine and the British Society for Oral and Dental Research. He has also served as President of the Oral Medicine and Pathology Group of the International Association for Dental Research. Dr. Lewis has undertaken laboratory-based research on the microbiological basis of orofacial disease for more than 30 years. His novel findings have been translated to clinical trials that have impacted on the management of a range of bacterial, fungal and herpetic infections in the orofacial and dental tissues. He has authored approximately 100 articles in peer-reviewed journals and has also co-authored nine textbooks. PhilipJohn Lamey, BSc (Hons), BDS, MB, ChB, DDS (Edin), FDSRCPS, FFDRCSI, FDSRCS (Eng) is a Consultant in Oral Medicine at the Edinburgh Dental Institute in Scotland. From 1992 to 2014 he was Professor of Oral Medicine and Consultant in Oral Medicine at Queen's University Belfast and he also served as Dean of the School of Dentistry at the university (19982003). Dr. Lamey is a past President of the British Society for Oral Medicine. As a research academic, Dr. Lamey has fostered close links with industry and has established collaborations with many leading researchers worldwide over many years. His research interests have included herpetic infection, oral candidosis (particularly in association with diabetes), leukoplakia and mouth cancer. He has authored more than 250 articles in peerreviewed journals and is the author or coauthor of eight textbooks.