1. Laboratory of Biomedical and Non-Linear Optics, Vale do Paraiba University, São José dos Campos, São Paulo, Brazil.
2. Department of Dentistry, Vale do Paraiba University, São José dos Campos, São Paulo, Brazil.
3. Laboratory of Biomedical Vibrational Spectroscopy, Research and Development Institute, Vale do Paraiba University, São José dos Campos, São Paulo, Brazil.
4. Department of Restorative Dentistry, Universidade de Taubaté, São Paulo, Brazil.