Evaluation of the TMJ by means of Clinical TMD Examination and MRI Diagnostics in Patients with Rheumatoid Arthritis
Table 7
Results of the MRI evaluation for test subjects of the control group (group N, subjects) and the group of patients with rheumatoid arthritis (group RA, patients). (DD = disk displacement.)
MRI findings
Group N
Group RA
left
right
left
right
Sample size ( individuals/ TMJs)
30
30
30
30
Condyle/fossa relationship (closed mouth)
Centered
90%
87%
60%
47%
Anterior oriented
3%
0%
7%
17%
Posterior oriented
7%
13%
33%
37%
Cranial oriented
3%
3%
23%
20%
Caudal oriented
17%
13%
43%
47%
Disk position parasagittal (closed mouth)
Regular
83%
67%
27%
33%
Partial anterior DD with reduction
10%
30%
37%
33%
Partial anterior DD without reduction
0%
0%
3%
0%
Complete anterior DD with reduction
3%
0%
0%
0%
Complete anterior DD without reduction
3%
0%
20%
17%
No evaluation possible
0%
3%
13%
17%
Signal intensity PD/T2 (condyle)
Increased signal intensity
0%
0%
23%
13%
Signal intensity PD/T2 (bilaminar zone/joint space)
