1. Department of Pediatric Dentistry; University of São Paulo, School of Dentistry of Ribeirão Preto; Ribeirão Preto São Paulo Brazil
2. Department of Pediatric Dentistry; Federal University of Alfenas; Alfenas Minas Gerais Brazil
3. Department of Dentistry; State University of Amazonas; Manaus Amazonas Brazil
4. Department of Oral Biology; School of Dental Medicine; University of Pittsburgh; Pittsburgh Pennsylvania