Mandibular Biomechanics and Development of the Human Chin
@article{Ichim2006MandibularBA, title={Mandibular Biomechanics and Development of the Human Chin}, author={Ionut P Ichim and M.V. Swain and Julius A. Kieser}, journal={Journal of Dental Research}, year={2006}, volume={85}, pages={638 - 642} }
The development of the chin, a feature unique to humans, suggests a close functional linkage between jaw biomechanics and symphyseal architecture. The present study tests the hypothesis that the presence of a chin changes strain patterns in the loaded mandible. Using an anatomically correct 3-D model of a dentate mandible derived from a CT scan image, we analyzed strain patterns during incisal and molar biting. We then constructed a second mandible, without a chin, by ‘defeaturing’ the first…
72 Citations
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The results of this study corroborate prior hypotheses about the mechanical effects of the human chin and vertical symphysis orientation and support the idea that the relative importance of wishboning and vertical bending in the coronal plane might have played a role in the evolution of modern human symphyseal morphology.
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Symphyseal surface strain during in vitro human mandibular wishboning.
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