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. 2025 May 30;25:851. doi: 10.1186/s12903-025-06234-5

Table 2.

Comparison of the groups regarding the questions posed to individuals to diagnose bruxism (Chi-square test)

Groups p
Control Bruxism
n % n %
Bruxism Questionnaire − 1 Are you aware that you grind your teeth during sleep? No 35 100.0 7 20.6 0.000*
Yes 0 0.0 27 79.4
Has anyone ever told you that you grind your teeth during sleep? No 35 100.0 19 54.3 0.000*
Yes 0 0.0 16 45.7
Tooth clenching substance to sleep: When you wake up in the morning or wake up at night, are your jaws thrust or braced? No 33 94.3 8 22.9 0.000*
Yes 2 5.7 27 77.1
Do you clench your teeth when you are awake? No 35 100.0 5 14.3 0.000*
Yes 0 0.0 30 85.7
Do you grind your teeth when you are awake? No 35 100.0 19 54.3 0.000*
Yes 0 0.0 16 45.7
Bruxism questionnaire-2 Has anyone told you that you clench your teeth during sleep? No 35 100.0 14 40.0 0.000*
Yes 0 0.0 21 60.0
If yes, please mark the person who told you this:
a) Dentist 0 22 62.85
b) Another healthcare professional 0 0 0
c) Sleep partner 0 14 37.15
Have you noticed that you clench your teeth during sleep in the last 2 weeks? No 35 100.0 5 14.7 0.000*
Yes 0 0.0 29 85.3
Has anyone told you that you grind your teeth during sleep? No 35 100.0 18 51.4 0.000*
Yes 0 0.0 17 48.6
If yes, please mark the person who told you this:
a) Dentist 0 22 62.85
b) Another healthcare professional 0 0 0
c) Sleep partner 0 14 37.15
Have you noticed that you grind your teeth during sleep in the last 2 weeks? No 35 100.0 16 45.7 0.000*
Yes 0 0.0 19 54.3
I clench/grind my teeth when I do tasks that require concentration. No 31 88.6 12 34.3 0.000*
Yes 4 11.4 23 65.7
Patient’s Complaints Questionnaire I feel pain in my temples when I wake up in the morning. No 34 97.1 14 40.0 0.000*
Yes 1 2.9 21 60.0
I have a headache when I wake up in the morning. No 32 91.4 12 34.3 0.000*
Yes 3 8.6 23 65.7
I wake up tired. No 25 71.4 8 22.9 0.000*
Yes 10 28.6 27 77.1
I use an occlusal splint because of my habit of clenching/grinding my teeth. No 35 100.0 30 85.7 0.054
Yes 0 0.0 5 14.3