*2.2. Characteristics of the Study Group*

A total of 194 women (64.7%) and 106 men (35.3%) participated in the study. Among all the respondents, there were 30.3% of first-year students, 36% of second-year students and 33.7% of third-year students. The average age of the respondents was 21.71 (SD 2.69) and 22.26 (SD 2.10), *p* = 0.05, in the P1 and P2 group, respectively. The group of students with symptoms of SSDs included 103 women (68.7%) and 47 men (31.3%), and the group of asymptomatic participants consisted of 91 women (60.7%) and 59 men (39.3%). There was no difference in the gender structure between the groups, *p* = 0.14723.

After analyzing the data from the SS disorders symptom questionnaire in the P1 group, it was found that the most frequently reported symptoms were: headache 68%, pain in the neck and shoulder girdle 58%, teeth clenching 50%, TMJ acoustic symptoms 33.3%, TMJ pain 32.7%, increased masticatory muscle tension 30%, teeth grinding 22.7%, facial pain 12%.

The statistical comparison of the results of the SS disorder questionnaire between the groups was omitted due to the lack of occurrence of the studied variables in the P2 group.
