Table 2 Questionnaire responses among 704 patients (%)

Q1: Do you often make tooth grinding sounds during sleep (confirmed by room mate or family member)?

40.91

0

59.09

Q2: Do you favor the consumption of hard or acidic foods?

30.68

21.59

47.73

Q3: Does your work environment involves dust or acid gas?

0

3.41

96.59

Q4: Do you have parafunctional activity, such as clenching or grinding your teeth?

20.45

0

79.55

Q5: Do you suffer from clicking of the temporomandibular joint?

36.36

0

63.64

Q6: Do you suffer from stiffness or fatigue of the masticatory muscles?

9.09

0

90.91

Q7: Do you suffer from acid reflux?

0

4.55

95.45