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. 2012 Sep 12;4(5):323–331. doi: 10.4021/jocmr1084w

Table 3. Jaw Tightening Force and Mouth Opening Comparison of Rheumatoid Arthritis and Control Groups.

Control Group Case Group P-value
Jaw Tightening Force-Right 28.5 (20 - 36) 12.5 (5 - 36) < 0.001
Jaw Tightening Force-Left 28 (22 - 34) 12 (7 - 30) < 0.001
Mouth Opening 5 (5 - 5) 3 (2.3 - 5) < 0.001