1. Department of Periodontology, School of Dentistry; Pontific Catholic University of Minas Gerais; Belo Horizonte; Brazil
2. Private Practice; Santo Andre; Brazil
3. Department of Periodontology, School of Dentistry; Federal University of Minas Gerais; Belo Horizonte; Brazil
4. Department of Morphology, Biological Sciences Institute; Federal University of Minas Gerais; Belo Horizonte; Brazil
5. Department of Oral Pathology, School of Dentistry; Federal University of Salvador; Bahia; Brazil
6. Department of Periodontology, School of Dentistry; Federal University of Salvador; Bahia; Brazil