Received endodontic speciality training in Guy’s Hospital, King’s College London. He completed his PhD in the University of Birmingham on the subject of ‘Epigenetic approaches to the role of Histone Deacetylase Inhibitors (HDACi) in promoting dentine-pulp reparative mechanisms’. As an Academic Professor and Consultant in Endodontics, he has led endodontic teaching, service delivery and research in Dublin Dental University Hospital (DDUH) for the last 17 years. He has published over 180 international peer-reviewed scientific articles, 60 research abstracts, 18 book chapters as well as editing 3 textbooks. He was the primary author of the recent European Society of Endodontology (ESE) position statement on ‘Management of deep caries and the exposed pulp’ and is the lead of the ‘ESE S3-level Guidelines for the Treatment of Endodontic Disease’. He is the current Editor-in-Chief of the International Endodontic Journal. He has received multiple research grants as principal investigator. In DDUH, he currently maintains a research lab and is the principal supervisor of clinical and scientifically trained PhD students and postdoctoral researchers in his research area of interest basic and translational pulp biology and endodontics. Currently, he is the DDUH Director of Research and President of the ESE.