Table 2 Comparison between all the JE and NA TMJs
NA side (n = 1074) | JE side (n = 458) | P value | r, P | ||
|---|---|---|---|---|---|
Joint sounds | normal (%) | 770 (71.7) | 272 (59.4) | χ2 = 22.351, P = 0.000 | r = 0.121, P = 0.000 |
abnormal (%) | 304 (28.3) | 186 (40.6) | |||
Joint pain | normal (%) | 889 (82.8) | 158 (34.5) | χ2 = 345.874, P = 0.000 | r = 0.475, P = 0.000 |
abnormal (%) | 185 (17.2) | 300 (65.5) | |||
Disc morphology | biconcave (%) | 389 (36.2) | 84 (18.3) | χ2 = 77.872, P = 0.000 | r = 0.154, P = 0.000 |
lengthened (%) | 118 (11.0) | 33 (7.2) | |||
contracture (%) | 415 (38.6) | 285 (62.2) | |||
irregular (%) | 152 (14.2) | 56 (12.2) | |||
Disc position | NA (%) | 282 (26.3) | 46 (10.0) | χ2 = 75.319, P = 0.000 | r = 0.216, P = 0.000 |
ADDWR (%) | 323 (30.1) | 111 (24.2) | |||
ADDWoR (%) | 452 (42.1) | 291 (63.5) | |||
PDDWR (%) | 13 (1.2) | 6 (1.3) | |||
PDDWoR (%) | 4 (0.4) | 4 (0.9) | |||
Condylar bone | normal (%) | 606 (56.4) | 218 (47.6) | χ2 = 10.063, P = 0.002 | r = 0.081, P = 0.001 |
abnormal (%) | 468 (43.6) | 240 (52.4) | |||
Bone marrow oedema | absence (%) | 1058 (98.5) | 448 (97.8) | χ2 = 0.926, P = 0.336 | - |
presence (%) | 16 (1.5) | 10 (2.2) |