1. Department of Pediatric Dentistry and Orthodontics, School of Dentistry, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil;
2. Department of Medical Microbiology, Prof. Paulo de Góes Institute, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil;
3. Department of Preventive and Community Dentistry, School of Dentistry, Universidade do Estado do Rio de Janeiro, Rio de Janeiro, Brazil