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Dentomaxillofac Radiol. 2013;42(9):20120436. doi: 10.1259/dmfr.20120436. Epub 2013 Aug 23.

Dynamic MRI of the TMJ under physical load.

Author information

1
Department of Experimental Physics 5, University of Wuerzburg, Wuerzburg, Germany;

Abstract

OBJECTIVES:

The objective of this study was to examine the kinematics of structures of the temporomandibular joint (TMJ) under physiological load while masticating.

METHODS:

Radial MRI was chosen as a fast imaging method to dynamically capture the motions of the joint's anatomy. The technique included a golden ratio-based increment angle and a sliding window reconstruction. The measurements were performed on 22 subjects with and without deformation/displacement of the intra-articular disc while they were biting on a cooled caramel toffee.

RESULTS:

The reconstructed dynamic images provided sufficient information about the size and localization of the disc as well as the change of the intra-articular distance with and without loading.

CONCLUSIONS:

The feasibility of the golden ratio-based radial MRI technique to dynamically capture the anatomy of the TMJ under physical load was demonstrated in this initial study.

KEYWORDS:

magnetic resonance imaging (MRI); temporomandibular joint (TMJ); temporomandibular joint disc

PMID:
23975114
PMCID:
PMC3828022
DOI:
10.1259/dmfr.20120436
[Indexed for MEDLINE]
Free PMC Article

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