Contribution of finete element modeling to assessment of TMJ loading patterns.

Koolstra J.H.

Van Eijden T.M.J.H.

International Conference on TMJ Replacement and Tissue Engineering in Hiroshima : 顎関節部の再建と組織再生に関する国際カンファレンス-広島

Simulations were performed with a dynamic biochemical model of the human masticatory system that included the deformable cartilaginous structures of the temporomandibular joints as finite element models. This model predicted jaw movements as a result of force patterns of the masticatory muscles. Tension, compression and shear stresses as well as the pressure distribution were predicted during jaw open-close movements. It was found that the articular disc is able to reduce load concentrations between the articular eminence and mandibular condyle at the cost of relatively large shear stresses. Separately, predicted changes in pressure distribution inside the disc gave rise to the idea that its interstitial fluid could be subject to a continuous mixing flow pattern.

temporomandibular joint

TMJ

finete element model

masticatory muscle

Medical sciences [ 490 ]

eng

[URI] http://ir.lib.hiroshima-u.ac.jp/00014841 isPartOf