1. Graduate Program, School of Dentistry, Fluminense Federal University, Niteroi 24020-140, Brazil
2. Department of Oral Surgery, School of Dentistry, Fluminense Federal University, Niteroi 24020-140, Brazil
3. Oral Diagnosis Department, School of Dentistry, Fluminense Federal University, Niteroi 24020-140, Brazil
4. South Bay Dental Institute, Los Angeles, CA 90731, USA
5. Department of Periodontology, Tufts University School of Dental Medicine, Boston, MA 02111, USA
6. Department of Oral Maxillofacial Surgery and Periodontology, Post-Graduation Program, School of Dentistry of Ribeirão Preto, University São Paulo, Ribeirão Preto 14040-904, Brazil