Table 4 Comparison of leading symptoms

Pain in the temporomandibular joint and/or jaw

97

33.7

Professional singers

36

37.5

Recreational singers

34

35.4

Nonsingers

27

28.1

Sounds in the temporomandibular joint

127

44.1

Professional singers

51

53.1

Recreational singers

44

45.8

Nonsingers

32

33.3

Limitations and/or pain during jaw movement

78

27.1

Professional singers

37

38.5

Recreational singers

23

24

Nonsingers

18

18.8

Deviating mouth opening

73

25.3

Professional singers

27

28.1

Recreational singers

31

32.3

Nonsingers

15

15.6

Restricted mouth opening

23

8

Professional singers

9

39.1

Recreational singers

10

43.5

Nonsingers

4

17.4

Pain and/or hardening in the masticatory muscles

98

34

Professional singers

42

43.8

Recreational singers

32

33.4

Nonsingers

24

25