Department of Periodontology, University of Bern, Bern, Switzerland. richard.miron@zmk.unibe.ch. Department of Periodontology, Dental Research Division, School of Dentistry, Veiga de Almeida University, Rio de Janeiro, Brazil. Department of Cranio-Maxillofacial Surgery, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland. Department of Oral Implantology, University of Wuhan, Wuhan, China. Division of Oral Bioengineering, Institute of Medicine and Dentistry, Niigata University, Niigata, Japan. Department of Prosthetic Dentistry, University Iuliu Hatieganu, Cluj-Napoca, Romania. Department of Periodontology, Operative and Preventive Dentistry, University of Bonn, Bonn, Germany. Division Private practice, West Bowmanville Family Dental, Bowmanville, Ontario, Canada. Independent researcher, Rome, Italy. Department of Periodontology, Kagoshima University Graduate School of Medical and Dental Sciences, Kagoshima, Japan. Department of Oral Biology, University of Vienna, Vienna, Austria. Department of Periodontology, Semmelweis University, Budapest, Hungary. Department of Oral Surgery, School of Dentistry, Fluminense Federal University, Rua Mario dos Santos Braga, 30, Centro, Niteroi, Rio de Janeiro, Brazil. Department of Periodontology, University of Bern, Bern, Switzerland. Department of Periodontics and Oral Medicine, University of Michigan, Ann Arbor, Michigan, USA.