1. Department of Pediatric Dentistry, Piracicaba Dental School, University of Campinas, Piracicaba, SP, Brazil
2. Department of Prosthodontics and Periodontics, Division of Periodontics, Piracicaba Dental School, University of Campinas, Piracicaba, SP, Brazil
3. Department of Dentistry, Endodontic and Dental Materials, Bauru Dental School, University of São Paulo, Bauru, SP, Brazil
4. São Paulo University, São Paulo, SP, Brazil
5. Department of Physics, School of Science, State University of São Paulo, Bauru, SP, Brazil
6. São Leopoldo Mandic Institute, Dental Research Center, Campinas, São Paulo, SP, Brazil