1. School of Dentistry; Fluminense Federal University; Nova Friburgo Brazil
2. Biology Institute; Fluminense Federal University; Niterói Brazil
3. Clinical Research Unit; Fluminense Federal University; Niterói Brazil
4. Department of Pediatric Dentistry; São Paulo University; Riberão Preto Brazil
5. Directory of Programs; National Institute of Metrology; Quality and Technology (INMETRO); Duque de Caxias Brazil