1. Department of Orthodontics, Pontifícia Universidade Católica de Minas Gerais -PUC-Minas-, Faculty of Dentistry, Belo Horizonte/MG, Brazil;
2. Department of Oral Pathology, Universidade Federal de Minas Gerais, Faculty of Dentistry, Av. Antônio Carlos 6627, CEP 31.270-901, Belo Horizonte/MG, Brazil;
3. Department of Morphology, Universidade Federal de Minas Gerais, Instituto de Ciências Biológicas, Belo Horizonte/MG, Brazil;
4. Department of Clinical Medicine, Universidade Federal de Minas Gerais, Faculty of Medicine, Belo Horizonte/MG, Brazil; and
5. Department of Biochemistry and Immunology, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte/MG, Brazil