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  • Title: Elastic properties of human supraorbital and mandibular bone.
    Author: Dechow PC, Nail GA, Schwartz-Dabney CL, Ashman RB.
    Journal: Am J Phys Anthropol; 1993 Mar; 90(3):291-306. PubMed ID: 8460653.
    Abstract:
    Elastic constants, including the elastic modulus, the shear modulus, and Poisson's ratio, were measured on human craniofacial bone specimens obtained from the supraorbital region and the buccal surfaces of the mandibles of unembalmed cadavers. Constants were determined using an ultrasonic wave technique in three directions relative to the surface of each sample: 1) normal, 2) tangential, and 3) longitudinal. Statistical analysis of these elastic constants indicated that significant differences in the relative proportions of elastic properties existed between the regions. Bone from the mandible along its longitudinal axis was stiffer than bone from the supraorbital region. Directional differences in both locations demonstrated that cranial bone was not elastically isotropic. It is suggested that differences in elastic properties correspond to regional differences in function.
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