Clinical Study

Evaluation of the TMJ by means of Clinical TMD Examination and MRI Diagnostics in Patients with Rheumatoid Arthritis

Table 3

Results of the clinical TMD examination in test subjects of the control group (group N) and the group of patients with rheumatoid arthritis (group RA).

Examination parameter
Range of motion of mandible
(interquartile range)
Group NGroup RA

Sample size ( individuals)3030

Max. unassisted mandibular opening (mm)54 (47–57)51 (43–54.5)
Max. assisted mandibular opening (mm)55 (49–61.5)53 (46–58)
Max. right lateral excursion (mm)9 (7.5–10)9 (6.25–10)
Max. left lateral excursion (mm)9 (8–10)10 (9–12)
Max. protrusion (mm)8 (7–8.8)7 (5–8)