1. Department of Operative Dentistry, School of Dentistry, Federal University of Pelotas, Pelotas, RS, Brazil
2. Department of Oral and Maxillofacial Surgery, School of Dentistry, Federal University of Pelotas, Pelotas, RS, Brazil
3. Department of Semiology and Clinics, Faculty of Dentistry, University Federal of Pelotas, Pelotas, RS, Brazil