1. Student of the Master Degree Program in Odontology at Universidade Estadual de Londrina - UEL, Londrina; Paraná Brasil
2. Department of Physics; State University of Central West - UNICENTRO; Guarapuava Paraná Brasil
3. Department of Physics; State University of Londrina - UEL; Londrina Paraná Brasi
4. Department of Oral Medicine and Infant Odontology; State University of Londrina - UEL; Londrina Paraná Brasil
5. Department of Restorative Odontology; State University of Londrina - UEL; Londrina Paraná Brasil
6. Department of Physics; State University of Londrina - UEL; Londrina Paraná Brasil