Henry (Hal) Duncan is a full-time Assistant Professor and Consultant in Endodontics at Dublin Dental University Hospital, Trinity College Dublin, Ireland, leading and coordinating teaching, treatment, and research in the field of Endodontology. He graduated in Dentistry from Glasgow University in 1993 and completed his Fellowship in Dental Surgery from the Royal College of Surgeons (F.D.S R.C.S., Edinburgh) in 1999. In 2006 he gained a Masters in Clinical Dentistry (with distinction) in the subject of Endodontics (MClin.Dent., London) and in 2016 completed his PhD in Oral Biology at the University of Birmingham. His main areas of research are the potential therapeutic role of epigenetic modifiers in vital pulp treatment and regenerative pulp therapy. Dr. Duncan has been lead or co-author of approaching 30 original articles and review papers in peer-reviewed journals and is co-editor of Pitt Ford's Problem-Based Learning in Endodontology (Wiley-Blackwell, Oxford, 2011). He is aneditorial board member and Associate Editor: Clinical Studies for the International Endodontic Journal. Paul R. Cooper is Professor of Oral Biology at the School of Dentistry, College of Medical and Dental Sciences, University of Birmingham, UK. He became full Professor in 2012, having previously been Lecturer and Senior Lecturer in Molecular Biology. He is also Honorary Professor in the School of Life & Health Sciences, Aston University, the Dublin Dental University Hospital, Trinity College Dublin, Ireland and the Faculty of Dentistry, University of Otago, New Zealand. He gained a BSc (Hons) in Genetics from Leeds University in 1992 and completed his PhD in Cancer Studies at the University of Birmingham in 1995. Dr. Cooper has been a founding member and inaugural president of the European Society of Dental & Craniofacial Stem Cells (ESDCSC), is currently Chair of the British Society for Oral and Dental Research’s GSK-Mineralised Tissue Group (BSODR-GSK-MINTIG) and sits on the BSODR Management Committee. In 2010 he was awarded the International Association for Dental Research (IADR) Distinguished Scientist Young Investigator Award. He is an editorial board member for four key discipline journals and a referee for more than 20 journals. To date he has authored over 130 full publications in research fields including pulp biology, periodontology, stem cell biology, inflammation and immunology, and photobiomodulation.