1. Department of Restorative Dentistry, School of Dentistry, University of São Paulo, São Paulo, Brazil.
2. Special Laboratory on Lasers in Dentistry (LELO), School of Dentistry, University of São Paulo, São Paulo, Brazil.
3. Center for Lasers and Applications, Instituto de Pesquisas Energéticas e Nucleares, CNEN/SP, São Paulo, Brazil.
4. School of Dentistry, University of Campinas, Piracicaba, Brazil.