Is early TMJ involvement in children with juvenile idiopathic arthritis clinically detectable? Clinical examination of the TMJ in comparison with contrast enhanced MRI in patients with juvenile idiopathic arthritis

Table 4 Analysis of MRI findings after excluding deformity vs. MOC, corresponding SDS-values and centiles

MRI enhancement without deformity
Factor	Examination method	T-test p-value	Mean difference (CI95 lower, CI95 upper)
Maximal mouth opening capacity	Orthodontic (n = 51)	0.506	1.2 (−2.4, 4.7)
Maximal mouth opening capacity	Rheumatologic (n = 50)	0.719	−0.7 (−4.4, 3.0)
SDS values	Orthodontic (n = 47)	0.698	−0.1 (−0.8, 0.5)
SDS values	Rheumatologic (n = 46)	0.265	−0.4 (−1.2, 0.3)
Centiles	Orthodontic (n = 47)	0.683	−3.6 (−21.0, 13.9)
Centiles	Rheumatologic (n = 46)	0.270	−10.5 (−29.5, 8.5)

T-test to compare the MRI findings to the MOC’s and the corresponding SDS-values and centiles after excluding patients with deformity. Mean difference between groups with upper and lower 95 % confidence interval (CI95) is provided. All continuous variables were normally distributed
*p-value < 0.05

ISSN: 1546-0096