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  • Title: Ipsilateral interferences and working-side condylar movements.
    Author: Huang BY, Whittle T, Peck CC, Murray GM.
    Journal: Arch Oral Biol; 2006 Mar; 51(3):206-14. PubMed ID: 16154529.
    Abstract:
    UNLABELLED: There is limited knowledge of the effects of the occlusion on temporomandibular joint function. AIM: The aim was to investigate the influence of a working-side occlusal alteration (OA, i.e. interference) on trajectories of working-side condylar points during standardized lateral jaw movements (laterotrusion) tracked by a jaw-tracking system. METHODS: Ten trials of right laterotrusion were repeated under: control 1 (before OA), OA (immediately after placement of a working-side interference) and control 2 (immediately after removal of OA) conditions. RESULTS: During right jaw movement, the paths of the working-side condylar points under OA were significantly more inferior and anterior to those under control at the same amount of mid-incisor-point displacement from the intercuspal position. The OA significantly reduced the rotation of the mandible about the antero-posterior and supero-inferior axes and significantly increased the opening angle. Controls 1 and 2 were not significantly different. CONCLUSIONS: A working-side interference has an immediate, significant effect on working-side condylar movement.
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