1 | Department of Oral and Maxillofacial Surgery, School of Dentistry, Pontificia Universidade Católica do rio Grande do Sul, Brazil |
2 | Vitória, ES. Bracil |
3 | Department of Estomatology, School of Dentistry, Pontificia Universidade Católica do rio Grande do Sul, Brazil |
4 | Department of Oral Pathology, School of Dentistry, Pontificia Universidade Católica do rio Grande do Sul, Brazil |