1. Department of Surgery and Integrated Clinic, School of Dentistry, São Paulo State University, Araçatuba, São Paulo, Brazil
2. Department of Periodontology, Dental Research Division, Guarulhos University, Guarulhos, São Paulo, Brazil
3. Department of Oral Medicine, Infection, and Immunity, Harvard School of Dental Medicine, Boston, MA, USA
4. Department of Semiology and Clinic, Periodontology Discipline, Federal University of Pelotas, Pelotas, Rio Grande do Sul, Brazil