1. Department of Periodontology, Dental Research Division Guarulhos University Guarulhos São Paulo Brazil
2. Department of Periodontology, College of Dentistry University of Florida Gainesville Florida USA
3. Department of Stomatology Federal University of Parana Curitiba Parana Brazil
4. Center for Clinical and Translational Research The Forsyth Institute Cambridge Massachusetts USA
5. Division of Periodontics, Department of Stomatology, School of Dentistry University of Sao Paulo São Paulo São Paulo Brazil