1. Department of Dentistry, Health Sciences Faculty; University of Brasília; Brasília Brazil
2. Department of Education; University of Brasília; Brasília Brazil
3. Division Head of Orthodontics; Department of Dentistry; University of Alberta; Alberta Canada
4. Oral Histopathology Laboratory, Health Sciences Faculty; University of Brasília; Brasília Brazil
5. Department of Dentistry; Federal University of Santa Catarina; Florianopolis Santa Catarina Brazil
6. Department of Dentistry; University of Alberta; Alberta Canada