抄録
The purpose of this study was to evaluate the characteristic magnetic resonance (MR) finding of temporomandibular disorders (TMD) in children. Two hundred fifty-six temporomandibular joints (TMJs) in 130 patients less than 15 years of age of MR images of 1278 TMJs in 653 patients with disc displacement who underwent MR imaging for suspected TMD were studied retrospectively as childrenʼs group. These MR images of childrenʼs group were compared with those of adultʼs group concerning disc displacement with or without reduction, joint effusion, and bony change. Logistic multivariate regression analysis demonstrated that reduction (odds ratio=2.23,p=. 0001), joint effusion (odds ratio=1.73,p=. 0012), and bony change (odds ratio=2.44,p=. 0003) were significant variables. These results suggest that characteristic MR findings of TMD in children are disc displacement with reduction, without joint effusion, and without bony change.
