1. Beatriz Tholt de Vasconcellos, DDSc, MSc, graduate student, Department of Dentistry, University of São Paulo, São Paulo, Brazil
2. Walter Gomes Miranda-Júnior, DDSc, MSc, assistant professor, Department of Dental Materials, University of São Paulo, São Paulo, Brazil
3. Rodrigo Prioli, DSc, MSc, assistant professor, Department of Physics, PUC University, Rio de Janeiro, Brazil
4. Jeffrey Thompson, PhD, professor & interim chair, Department of Biomedical Engineering University of Texas at San Antonio, San Antonio, TX, USA
5. Margareth Oda, DDSc, MSc, assistant professor, Department of Dentistry, University of São Paulo, São Paulo, Brazil