1. Periodontics and Oral Medicine Department University of Michigan School of Dentistry Ann Arbor Michigan USA
2. A. T. Still University St. Louis Missouri USA
3. FP‐I3ID, FCS Universidade Fernando Pessoa Porto Portugal
4. Department of Biologic and Materials Sciences & Prosthodontics University of Michigan School of Dentistry Ann Arbor Michigan USA
5. Department of Research Bioface/PgO/UCAM Montevideo Uruguay
6. São Leopoldo Mandic, Campinas São Paulo Brazil
7. Universidade de Santiago de Compostela Santiago de Compostela Spain