1. PhD Student, Postgraduate Programme in Dentistry University of São Paulo São Paulo Brazil
2. Postgraduate Programme in Dentistry Federal University of Piauí Teresina Piauí Brazil
3. Undergraduate in Dentistry Federal University of Piauí Teresina Piauí Brazil
4. Associated Professor, Postgraduate Programme in Dentistry Federal University of Piauí Teresina Piauí Brazil
5. Full Professor, Postgraduate Programme in Dentistry Federal University of Piauí Teresina Piauí Brazil
6. Adjunct Professor, Postgraduate Programme in Dentistry Federal University of Piauí Teresina Piauí Brazil