1. Periodontology Unit Faculty of Dentistry, Oral & Craniofacial Sciences Centre for Host‐Microbiome Interactions King's College London London UK
2. Centre for Oral Immunobiology and Regenerative Medicine and Centre for Oral Clinical Research Institute of Dentistry Queen Mary University London (QMUL) London UK
3. Research Unit in Periodontology and Periodontal Medicine Department of Clinical and Experimental Medicine University of Florence Florence Italy