1. Professor, Department of Endodontics, Iguaçu University, Nova Iguaçu, Rio de Janeiro, Brazil
2. Private Clinic, Niteroi, Rio de Janeiro, Brazil
3. Department of Pediatric Dentistry, School of Dentistry, Estacio de Sá University of Rio de Janeiro, Rio de Janeiro, Brazil
4. Department of Endodontics, Iguaçu University, Nova Iguaçu, Rio de Janeiro, Brazil
5. Professor, Department of Periodontics, Iguaçu University, Nova Iguaçu, Rio de Janeiro, Brazil