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Table 1 Comparison between static and dynamic MRI in evaluation of disc position and mobility in the examined joints (n = 80)

From: Can dynamic magnetic resonance imaging replace static magnetic resonance sequences in evaluation of temporomandibular joint dysfunction?

  Static MRI Dynamic MRI p
No. % No. %
Disc position Normal 49 61.25 50 62.5  
ADDwR 11 13.75 13 16.25 < 0.001*
ADDwNR 18 22.5 16 20.0 < 0.001*
Medial 4 5.0 0 0.0
Lateral 1 1.25 0 0.0
Posterior 1 1.25 1 1.25 0.025*
Disc mobility Normal mobility 78 97.5 76 95.0 0.008*
Stuck disc 2 2.5 4 5.0
  1. Four joints had combined medial and anterior displacement (rotational anteromedial displacement) as reported by static MRI
  2. ADDwR anterior disc displacement with reduction, ADDwNR anterior disc displacement with no reduction, p p value for chi-square test for association between static MRI and dynamic MRI
  3. *Statistically significant at p ≤ 0.05