1. Department of Dental Materials and Prosthodontics; School of Dentistry at Araraquara, Univ Estadual Paulista - UNESP. Araraquara; São Paulo Brazil
2. Department of Physiology and Pathology; School of Dentistry at Araraquara, Univ Estadual Paulista - UNESP. Araraquara; São Paulo Brazil
3. Department of Pediatric Dentistry; School of Dentistry at Araraquara, Univ Estadual Paulista - UNESP. Araraquara; São Paulo Brazil