1. Department of Oral and Maxillofacial Surgery and Periodontology; School of Dentistry of Ribeirao Preto; University of Sao Paulo - USP; Ribeirao Preto SP Brazil
2. Department of Clinical Analyses; School of Pharmaceutical Sciences of Ribeirao Preto; University of Sao Paulo - USP; Ribeirao Preto SP Brazil
3. Department of Prosthodontics and Periodontics; School of Dentistry; Campinas State University - UNICAMP; Piracicaba SP Brazil