1. Department of Prosthodontics, Consulting Room of Temporomandibular Joint Dysfunction, Jagiellonian University Medical College, 4 Montelupich St., 31-155 Krakow, Poland
2. University Dental Clinic, Jagiellonian University Medical College, 4 Montelupich St., 31-155 Krakow, Poland
3. Department of Physiology, Jagiellonian University Medical College, 16 Grzegorzecka St., 31-531 Krakow, Poland