1. School of Dental Medicine University of Bern Bern Switzerland
2. Centre for Implantology Buser and Frei Bern Switzerland
3. Department of Periodontology and Oral Medicine University of Michigan Ann Arbor Michigan USA
4. Department of Periodontology UIC Barcelona Barcelona Spain
5. Division of Periodontology CICOM‐Monje Badajoz Spain
6. Department of Periodontology University of Bern Bern Switzerland
7. Department of Biomaterials, Institute of Clinical Sciences, Sahlgrenska Academy University of Gothenburg Gothenburg Sweden
8. Department of Dentistry, School of Health and Life Sciences Pontifical Catholic University of Rio Grande do Sul (PUCRS) Porto Alegre Brazil
9. Department of Oral, Maxillofacial Surgery and Research and Development NU‐Hospital Organisation Trollhättan Sweden