School of Dental Sciences

Staff Profile

Dr Richard Holliday

NIHR Clinical Lecturer in Restorative Dentistry



I am an NIHR Clinical Lecturer in Restorative Dentistry at the Newcastle Dental Hospital and School of Dental Sciences, Newcastle University. I have completed my specialist exams in Periodontology and am currently completing my specialist training in Restorative Dentistry. 

My current research interests are focused on understanding the potential role of e-cigarettes as a quitting aid for dental patients and also investigating any effects on the oral tissues.

Awards/ Prizes

  • British Society of Periodontology Poster (Research) Prize 2017
  • Society for Research on Nicotine and Tobacco (SRNT) Travel Prize 2017
  • Research Impact Competition First Prize. (Centre for Oral Health Research, Newcastle University, 2015)
  • British Society of Periodontology Poster (Research) Prize 2014
  • SRRDG Poster Prize 2012. (Senior Registrars in Restorative Dentistry Group)
  • John Smith Medal for MFDS part 1 (October 2009 diet), RCSEd. (Awarded for single highest score) 
  • New Graduate Award 2011. British Society for the Study of Prosthetic Dentistry (BSSPD).
  • BDS prize in Restorative Dentistry (University of Sheffield, 2008)
  • Roger Ball prize in Oral and Maxillofacial Surgery (University of Sheffield, 2008)
  • First prize- Audit Competition 2010- British Society of Oral Surgery (BAOS)
  • Highly commended (2nd prize), open paper award. BAOS/ European Federation of Oral Surgery Societies (EFOSS) joint meeting 2010.
  • Premier Award 2009. Second prize in the Postgraduate section.

Roles and Responsibilities

  • Councillor, British Society for Oral and Dental Research (BSODR); 2019-2022. 
  • Director, Northern Dental Practice Based Research Network; 2018-present.
  • Deputy Theme Lead, Oral Health and Epidemiology Research Theme, School of Dental Sciences, Newcastle University; 2019-present.
  • Academic representative for Senior Registrars in Restorative Dentistry Group (SRRDG); 2014/2015. 
  • Honorary Treasurer for SRRDG; 2015-2018.
  • Conference organiser for SRRDG; 2016.
  • SRRDG representative on The British Society of Periodontology (BSP) Council; 2014/2015.
  • Restorative StR representative on the Early Career Group of BSP; 2016-2018.


  • BDS (Hons)
  • MFDS an eundem RCSEng
  • MClinRes
  • M Perio RCSEd
  • PhD


  • British Dental Association (BDA)
  • The British Society of Periodontology (BSP)
  • British Society of Prosthodontics (BSSPD)
  • Member of the Royal College of Surgeons of Edinburgh (RCSEd)
  • Fellow of the Royal College of Surgeons of England (RCSEng)
  • British Society for Oral and Dental Research (BSODR)
  • International Association for Dental Research (IADR)
  • Specialty Registrar in Restorative Dentistry Group (SRRDG)
  • Society for Research on Nicotine and Tobacco (SRNT)


Area of expertise

  • Periodontology
  • Restorative Dentistry
  • Tobacco
  • Smoking
  • E-cigarettes
  • Nicotine

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My research interests focus on understanding and reducing periodontal diseases through investigations in two distinct, but interrelated areas: subgingival dental plaque and risk factors such as smoking (in particular electronic cigarettes).

My primary area of research is on tobacco, nicotine and e-cigarettes relative to oral health, particularly periodontal diseases. Tobacco smoking is the largest environmental risk factor for periodontitis, the sixth most prevalent disease worldwide. My interests range from the interventions dental professionals can deliver to reduce smoking in their patients, to the effect of nicotine on periodontal fibroblasts.

A particular interest of mine is e-cigarettes, on which I have published several papers. I have recently completed a prestigious NIHR Doctoral Research Fellowship to conduct a feasibility Randomised Controlled Trial (RCT) of e-cigarettes for smoking cessation or harm reduction within periodontal therapies. The RCT finished in the summer of 2018 and the results are currently being prepared for publication. I also have ongoing projects investigating the role of nicotine in periodontal pathogenesis and dental staining.   

As part of my Masters in Clinical Research, I conducted a clinical trial (NIHR Portfolio Study. UKCRN ID: 16964) involving ultrastructural analysis of subgingival dental plaque biofilm using Field Emission Scanning Electron Microscopy. The particular focus of this work was to enhance our understanding of the biofilm extra-cellular matrix, in particular the role of extra-cellular DNA (eDNA).


  • Royal College of Surgeons of Edinburgh, Small Pump Priming Grant. 2018, £9900. 
  • Centre for Oral Health Research, Newcastle University, Research Grant. 2018, £5000.
  • British Society of Periodontology Research Grant. 2013, £3,700.
  • Centre for Oral Health Research, Newcastle University, Research Grant. 2013, £3,700. 
  • Innovative engagement grant, Newcastle University. 2013, £500.
  • National Institute for Health Research, Doctoral Research Fellowship, 2015-2018, 'Electronic cigarettes as a smoking cessation and harm reduction tool in patients with periodontitis: A mixed methods feasibility study.' 2015, £323,713. 
  • British Society of Periodontology Clinical Travel Fellowship. 2016, £4000. 
  • Society for Research on Nicotine and Tobacco (SRNT) Travel Award. 2017, $500. 

Postgraduate Supervision



PhD – Zella Sayeed

A comparative in vitro study to investigate the effects of novel nicotine products on cells and tissue models; 2019 – present.


PhD – Anthony Weke

Comparative Analysis of electronic cigarette policies in the UK and US: the road map for policy development in Nigeria; January 2020 start.


MClinDent – Alaa Elhassan

Identification of clinical care pathways for adult patients with periodontitis: application to novel diagnostic strategies; 2019 – present.


MClinDent - Rijula Karanjkar

Developing patient-related outcome measures for tooth wear - patients' perspectives; 2018 - present.




Masters in Public Health – Anthony Weke

University students’ understanding of the potential benefits and risks of electronic cigarettes; 2018 - 2019.


MClinDent – Sobia Khan

Staining effects of tobacco smoke and e-cigarette aerosol exposure on resin composite; 2017 - 2019.


MClinDent - Nabiya Shahroz

Staining effects of inhaled traditional and novel nicotine products on resin composites; 2017 - 2019.


Masters in Public Health – Rosa Evans

E-cigarette use in young adults in the UK: the views, opinions and motivations of 18-25 year old users; 2017 - 2018.


MClinDent – Zohaib Ahmed

A questionnaire-based survey of UK dentists', dental therapists/hygienists' and dental nurses current opinions and knowledge towards smoking cessation and electronic cigarettes; 2015 - 20