1. Clinical Department; School of Dentistry; Pontifical Catholic University of Rio Grande do Sul; Porto Alegre Brazil
2. Medical and Dental Center of the Military Police of Rio Grande do Sul; Porto Alegre Brazil
3. Department of Conservative Dentistry; School of Dentistry; Federal University of Rio Grande do Sul; Porto Alegre Brazil
4. Department of Semiology and Clinics; School of Dentistry; Federal University of Pelotas; Rio Grande do Sul Brazil
5. Biomedical Informatics; Federal University of Health Sciences of Porto Alegre; Porto Alegre Brazil