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Abstract #1248

In Vivo Imaging of the Motion of the Temporomandibular Joint Components Using a Pseudo-Dynamic 3D Imaging Technique

Reni Biswas 1 , Karen Chen 2,3 , Eric Y. Chang 2 , Sheronda Statum 1 , Won C. Bae 1 , and Christine B. Chung 2,3

1 Department of Radiology, University of California, San Diego, San Diego, CA, United States, 2 VA San Diego Healthcare System, San Diego, CA, United States, 3 University of California, San Diego, CA, United States

The TMJ has unique biomechanical characteristics, as the bilateral TMJs must function together under compressive loads while undergoing large-scale movement. MRI allows for noninvasive evaluation of the joint and has the ability to evaluate soft tissues such as the articular disc and its congruity relative to the condyle in closed and open mouth position. The biomechanics of the osseous structures in the normal TMJ are well demonstrated using high resolution dynamic 3D cube sequence and involves translation and rotation of the mandibular condyle in the anterior to posterior direction and tissue deformation due to compression.

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