Mechanics of human jaw function using screw theory

John A. Gal, Luigi Gallo, Sandro Palla, Greg M. Murray, Iven J. Klineberg, Christopher Johnson, L. C. Zhang, Liyong Tong, John A. Gal

    Research output: Chapter in Book / Conference PaperConference Paper

    Abstract

    ![CDATA[In this paper the characterisation of jaw-mechanics by means of the finite screw and the wrench, is presented demonstrating its ability to provide a simplified, yet complete description of jaw function. With motion data and anatomical data from a single subject, the screw theory approach is implemented where the forces of the masticatory muscles are uniquely described at each instant by the wrench axis and its parameters. Incorporating the wrench axis description for muscle forces and moments during the motion with the finite screw representation of the motion, an integrated computer model of jaw mechanics is formulated. The results of an experimental program, involving Magnetic Resonance (MR) imaging for obtaining accurate anatomical representations of the musculatory muscles and the bony structures, as well as jaw-motion data collected via an optoelectronic recording instrument, are presented.The results show that the experimentally derived, screw-based model conforms to the clinically observed behaviour of jaw function and can provide a quantitatively accurate means of analyzing mandibular biomechanics.]]
    Original languageEnglish
    Title of host publicationApplied Mechanics: Progress and Applications: Proceedings of the 3rd Australasian Congress on Applied Mechanics, Sydney, Australia, 20-22 February 2002
    PublisherWorld Scientific Publishing
    Number of pages6
    ISBN (Print)9810248679
    Publication statusPublished - 2002
    EventAustralasian Congress on Applied Mechanics -
    Duration: 9 Dec 2012 → …

    Conference

    ConferenceAustralasian Congress on Applied Mechanics
    Period9/12/12 → …

    Keywords

    • mechanics, applied
    • jaws
    • masticatory muscles
    • biomechanics

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