1. Department of Dentistry, Faculty of Medicine, Federal University of Rio Grande do Sul, Porto Alegre, RS, Brazil
2. Department of Dentistry, State University of Maringá, Maringá, PR, Brazil
3. Private Clinic, Porto Alegre, RS, Brazil
4. Department of Dentistry, Craniofacial Pain Applied to Dentistry, Dentistry Faculty, Federal University of Rio Grande do Sul, Porto Alegre, RS, Brazil