Padhraig is Chair of Orthodontics at Trinity College Dublin and was formerly Professor, Consultant and Postgraduate Training Lead in Orthodontics at the Institute of Dentistry, Queen Mary University of London. He was awarded the British Orthodontic Society Medal for clinical excellence in 2008 and a PhD in 2013. He is an Associate Editor of the AJODO, British Dental Journal, Journal of Dentistry and Progress in Orthodontics and is on the editorial board of numerous other journals. Padhraig has published over 200 peer-reviewed papers and received numerous research awards including the Turpin Award from the American Academy of Orthodontists (AAO) in 2021, the Helen E. Dewel Award from the AAO on three occasions and the Chapman Prize from the British Orthodontic Society. Padhraig has co-authored four successful orthodontic textbooks, works in private practice on a part-time basis and runs online courses and mentoring through his Facebook group - Orthodontic Fundamentals.