1. School of Dentistry, Universidade Fernando Pessoa (UFP), Porto, 4249-004, Portugal
2. Herman Ostrow School of Dentistry of USC, 925 W 34 St. Los Angeles, CA 90089, USA
3. School of Dentistry (ODT), Federal University of Santa Catarina (UFSC), Florianopolis/SC, 88040-900, Brazil
4. Oral Health and Masticatory System Group (Bellvitge Biomedical Research Group), School of Dentistry, L'Hospitalet de Llobregat, Universitat de Barcelona, 402 4270, Barcelona, Spain