In vivo bone strain and finite element modeling of a rhesus macaque mandible during mastication
Citations
26 citations
24 citations
Cites methods from "In vivo bone strain and finite elem..."
...Interface 16:(2)0190674 2 mandible of an ostrich [8], and in macaque mandibles using in vitro data [29], as well as combined in vivo and ex vivo data [30]....
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22 citations
Cites background or methods from "In vivo bone strain and finite elem..."
...As the PDL itself cannot be visualized in CT, its geometry was demarcated as a continuous, non-uniform space between the tooth root and alveolar bone (spanning 3–6 voxels), and was segmented using a combination of manual and automatic methods (Panagiotopoulou et al., 2017)....
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...The details of capturing model geometry, segmentation, and material property assignment for the cortical bone, trabecular tissue, teeth and PDL are described in full elsewhere (Panagiotopoulou et al., 2017)....
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...To test our hypotheses we used a previously published FEM of a rhesus macaque mandible (Panagiotopoulou et al., 2017) and validated our FEMs against in vivo bone strain data....
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...Briefly, all muscle-force vectors were derived from a combination of in vivo raw EMG signals collected when the animal was chewing on nuts and ex vivo muscle physiological crosssectional area (PCSA) analysis to estimate the maximum force potential of each muscle (Panagiotopoulou et al., 2017)....
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...Bone screws were implanted in the mandible to measure three dimensional (3D) rigid body kinematics of the mandible during the post-canine unilateral chewing modeled in this study (Iriarte-Diaz et al., 2011; Ross et al., 2012; Panagiotopoulou et al., 2017)....
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20 citations
Cites background from "In vivo bone strain and finite elem..."
...This heterogeneity may help mandibular bone accommodate the diverse forces encountered during mastication (Panagiotopoulou et al., 2017)....
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20 citations
References
2,557 citations
"In vivo bone strain and finite elem..." refers methods in this paper
...All EMG and strain data were exported from Vicon as C3D files, imported into MatLab (Mathworks, Natick, MA, USA) using the Biomechanical ToolKit (BTK) (Barre and Armand, 2014) and analyzed by J.I.-D. using custom scripts in Matlab....
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...Maximum gape events were automatically identified using a custom Matlab script, but we manually selected only those events that represented rhythmic chewing....
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...Kinematic data were processed in Matlab using customized scripts based on the KineMat toolbox kit (http://isbweb.org/software/ movanal/kinemat/) and the BTK toolbox....
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...To compare FEM data to the strain gauge data, all the out-of-plane components of the strain tensor (i.e., εzz, εxz, εyz) were set to zero and principal strains—the eigenvalues and eigenvectors of the rotated strain tensors—at the gauge sites were calculated using a custom-written Matlab script (see Ross et al., 2011 for details)....
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...The orientation of the principal strains was analyzed using the circular statistics toolbox, CirscStat for Matlab (Berens, 2009)....
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1,448 citations
"In vivo bone strain and finite elem..." refers background in this paper
...because strain magnitudes are related to fracture probability (Burstein et al., 1972; Reilly and Burstein, 1975) and because strains activate adaptive bone remodeling, repair and modeling in response to load (Frost, 1987; Forwood and Turner, 1995; Turner, 1998)....
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...…to be an important design criterion for biological structures because strain magnitudes are related to fracture probability (Burstein et al., 1972; Reilly and Burstein, 1975) and because strains activate adaptive bone remodeling, repair and modeling in response to load (Frost, 1987; Forwood and…...
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1,298 citations
"In vivo bone strain and finite elem..." refers background in this paper
...An alternative approach, and the one adopted here, models subcortical bone as a single solid (called ‘trabecular tissue’) and assigns it an E-value lower than that of cortical bone in accordance with the principle that, due to its increased porosity, subcortical tissue has an E-value 20–30% lower than that of cortical bone (Cowin, 2001; Currey, 2002)....
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...…subcortical bone as a single solid (called ‘trabecular tissue’) and assigns it an E-value lower than that of cortical bone in accordance with the principle that, due to its increased porosity, subcortical tissue has an E-value 20–30% lower than that of cortical bone (Cowin, 2001; Currey, 2002)....
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1,120 citations
"In vivo bone strain and finite elem..." refers background in this paper
...An alternative approach, and the one adopted here, models subcortical bone as a single solid (called ‘trabecular tissue’) and assigns it an E-value lower than that of cortical bone in accordance with the principle that, due to its increased porosity, subcortical tissue has an E-value 20–30% lower than that of cortical bone (Cowin, 2001; Currey, 2002)....
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...…subcortical bone as a single solid (called ‘trabecular tissue’) and assigns it an E-value lower than that of cortical bone in accordance with the principle that, due to its increased porosity, subcortical tissue has an E-value 20–30% lower than that of cortical bone (Cowin, 2001; Currey, 2002)....
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1,109 citations
"In vivo bone strain and finite elem..." refers background in this paper
...However, constraints on image resolution mean that defining the geometry of the individual trabeculae in the subcortex can be problematic, as CT/μCT cannot accurately capture the fine details of the trabeculae within the subcortex (Rho et al., 1993; Dechow and Hylander, 2000; Rapoff et al., 2008)....
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