1. Oral Microbiology and Anaerobe Laboratory, Institute of Biological Science Federal University of Minas Gerais ‐ Avenida Presidente Antônio Carlos Belo Horizonte MG Brazil
2. Department of Preventive Veterinary Medicine Veterinary School‐Avenida Presidente Antônio Carlos Belo Horizonte MG Brazil
3. Department of Basic Nursing, School of Nursing Federal University of Minas Gerais Belo Horizonte MG Brazil