1. Oral and Maxillofacial Surgery Service; Department of Dentistry; Pontifícia Universidade Católica de Minas Gerais; Belo Horizonte; MG; Brasil
2. Oral and Maxillofacial Surgery Service; Hospital João XXIII/FHEMIG; Belo Horizonte; MG; Brasil
3. Department of Oral Surgery and Pathology; School of Dentistry; Universidade Federal de Minas Gerais; Belo Horizonte; MG; Brasil