1. Department of Oral Implantology Osaka Dental University Osaka Japan
2. ARDEC Academy Rimini Italy
3. Department of Oral Biology Medical University of Vienna Vienna Austria
4. School of Dental Medicine University of Bern Bern Switzerland
5. Department of Oral and Maxillofacial Surgery and Periodontology, Faculty of Dentistry of Ribeirão Preto University of São Paulo São Paulo Brazil