CINE MRI OF THE TMJ - NEED FOR INITIAL CLOSED MOUTH IMAGES WITHOUT THE BURNETT DEVICE

Objective: To evaluate the Burnett device when studying functional and morphologic aspects of internal derangements of the temporomandibular joint (TMJ) with cine MRI. Materials and Methods: A patient with clicks in the TMJ cycle was studied with dynamic cine MRI both prior to the placement of the Burnett device and with the Burnett device in position. Results: Review of MRI revealed clear anterior displacement of the disk in relation to the condylar head in true closed mouth position without the Burnett device in place. Conclusion: Closed mouth off-sagittal imaging of the disk in the closed mouth position should be included prior to appliance placement to detect anterior displacements with very early recapture.