1. State University of Montes Claros Montes Claros Brazil
2. Dental Research Division Guarulhos University Guarulhos, São Paulo Brazil
3. Dental Science School (Faculdade de Ciências Odontológicas ‐ FCO) Montes Claros Brazil
4. School of Dentistry Federal University of Minas Gerais Belo Horizonte Brazil
5. Department of Periodontics and Preventive Dentistry, School of Dental Medicine University of Pittsburgh Pittsburgh Pennsylvania USA
6. Piracicaba Dental School – University of Campinas Piracicaba, São Paulo Brazil