1. Department of Dentistry; School of Dentistry; Ponta Grossa State University; Ponta Grossa Paraná Brazil
2. Persons with Disabilities Division; NAPODONTO (Núcleo de Aperfeiçoamento Profissional em Odontologia), São Paulo; São Paulo Brazil
3. Persons with Disabilities Division, Universidade Cruzeiro do Sul, São Paulo; São Paulo Brazil