1. Department of Restorative Dentistry Universidade Estadual Paulista Julio de Mesquita Filho Faculdade de Odontologia Campus de Araraquara Araraquara Brazil
2. Laboratory of Histology and Embryology, Department of Morphology, Genetics, Orthodontics and Pediatric Dentistry, Dental School São Paulo State University (UNESP) Araraquara Brazil