Table 2 Clinical and MRI indicators to predict condylar erosion of the TMJ

Clinical items

Age (years) (mean ± SD)

39.0 (14.4)

36.6 (12.9)

37.5 (13.5)^a

Gender (n) (% female)

88 (93.6)

134 (87.0)

222 (89.5)^b

Missing posterior teeth (mean)

1.56

0.78

0.124^a

Time since pain onset (weeks) (mean ± SD)

13.9 (26.0)

10.8 (27.1)

12.0 (26.7)^a

Pain intensity (mm) (mean ± SD)

32.3 (32.3)

20.2 (28.7)

24.8 (30.6)^a

TMD/RDC diagnosis

 Arthralgia (n) (%)

24 (25.5)

44 (28.6)

66 (26.6)^b

 Arthralgia with DDwoR/wLO (n) (%)

38 (40.4)

18 (11.7)

56 (22.6)^b

MRI items

 Disk displacement with reduction (n) (%)

20 (21.3)

64 (41.6)

48 (33.9)^b

 Disk displacement without reduction (n) (%)

70 (74.5)

25 (16.2)

95 (38.3)^b

 Subchondral sclerosis (n) (%)

38 (40.4)

96 (62.3)

134 (54.0)^b

 Osteophyte (n) (%)

30 (31.9)

33 (21.4)

63 (25.4)^b

 Bone marrow edema (n) (%)

61 (69.4)

20 (13.0)

48 (32.7)^b

 Effusion (n) (%)

28 (29.8)

19 (12.3)

47 (19.0)^b