1. Clinical Lecturer and Honorary Consultant in Periodontology, Periodontology Unit, Centre for Host–Microbiome Interactions, Faculty of Dentistry, Oral and Craniofacial Sciences, King's College London, Guy's and St Thomas' NHS Foundation Trust; Specialist Practitioner, Private Practice, London
2. Associate Professor in Periodontology and Implant Dentistry, Postgraduate Academic Dean, Director of Clinical Investigation and Dental Innovation Center, Institute of Dentistry, Universidad de La Frontera, Temuco, Chile; Specialist Practitioner, Private Practice, Temuco, Chile
3. Clinical Reader and Honorary Consultant in Periodontology, Undergraduate Periodontology Lead, Centre for Immunobiology and Regenerative Medicine, Centre for Oral Clinical Research, Institute of Dentistry, Queen Mary University of London; Specialist Practitioner, Private Practice, London
4. Consultant in Restorative Dentistry, Director of Dental Education, Royal London Hospital, Barts Health NHS Trust; Honorary Senior Lecturer, Co-Lead for DClinDent Programme in Prosthodontics, Institute of Dentistry, Queen Mary University of London; Specialist Practitioner, Private Practice, London
5. Professor of Periodontology and Implant Dentistry, Honorary Consultant in Periodontology, Director of Research, Director of Centre for Oral Clinical Research, Institute of Dentistry, Queen Mary University of London; Royal London Hospital, Barts Health NHS Trust; Specialist Practitioner, Private Practice, London