Richard Holliday is a Speciality Registrar (StR) in Restorative Dentistry and NIHR Doctoral Research Fellow at Newcastle University. Richard’s research interests are focused on periodontal diseases, particularly risk factors, and he is currently completing his PhD on ‘e-cigarettes as a smoking cessation or harm reduction tool for patients with periodontitis’. The main body of this work is a feasibility randomised controlled trial of 80 smokers with periodontitis. Additional projects include surveys of tobacco education in UK dental schools, surveys of practitioner opinions and in vitro analysis.