In vivo bone strain and finite element modeling of a rhesus macaque mandible during mastication
Olga Panagiotopoulou,Olga Panagiotopoulou,Jose Iriarte-Diaz,Simon Wilshin,Paul C. Dechow,Andrea B. Taylor,Hyab Mehari Abraha,Sharifah F. Aljunid,Callum F. Ross +8 more
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TLDR
A subject-specific FEM of a rhesus macaque mandible was constructed, loaded and validated using in vivo data from the same animal, and the relative strain magnitudes were similar to those recorded in vivo for all strain locations.About:
This article is published in Zoology.The article was published on 2017-09-01 and is currently open access. It has received 26 citations till now.read more
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Journal ArticleDOI
Finite element analysis of individual taenioglossan radular teeth (Mollusca).
Wencke Krings,Jordi Marcé-Nogué,Jordi Marcé-Nogué,Jordi Marcé-Nogué,Hasan Karabacak,Matthias Glaubrecht,Stanislav N. Gorb +6 more
TL;DR: For the first time, a quantitative approach is used, Finite-Element-Analysis (FEA), to test hypotheses regarding the function of particular taenioglossan tooth types, and it is posited that the central and lateral teeth are best suitable for scratching substrate loosening ingesta, whereas the marginals are best suited for gathering food particles.
Journal ArticleDOI
The use of extruded finite-element models as a novel alternative to tomography-based models: a case study using early mammal jaws.
Nuria Melisa Morales-García,Thomas D. Burgess,Jennifer J. Hill,Pamela G. Gill,Emily J. Rayfield +4 more
TL;DR: Extruded FE models constitute a viable alternative to the use of tomography-based 3D models, particularly in relatively flat bones, in Morganucodon and Kuehneotherium.
Journal ArticleDOI
The Mechanical Effect of the Periodontal Ligament on Bone Strain Regimes in a Validated Finite Element Model of a Macaque Mandible.
TL;DR: The findings suggest that the mechanical importance of the PDL in FEMs of the mandible during chewing is dependent on the scope of the hypotheses being tested, and whether researchers are comparing strain gradients across species/taxa or if researchers are concerned with absolute strain values, sensitivity analysis is required.
Journal ArticleDOI
Glucocorticoids cause mandibular bone fragility and suppress osteocyte perilacunar-canalicular remodeling.
A. Sean Alemi,Courtney M. Mazur,Courtney M. Mazur,Tristan W. Fowler,Jonathon J. Woo,P. Daniel Knott,Tamara Alliston,Tamara Alliston +7 more
TL;DR: Osteocyte PLR in the neural crest-derived mandible is susceptible to glucocorticoids, just as it is in the mesodermally-derived femur, highlighting the need to further study PLR as a target of drugs, and radiation in mandibular osteonecrosis.
Journal ArticleDOI
Why ruminating ungulates chew sloppily: Biomechanics discern a phylogenetic pattern
Zupeng Zhou,Daniela E. Winkler,Josep Fortuny,Thomas M. Kaiser,Jordi Marcé-Nogué,Jordi Marcé-Nogué +5 more
TL;DR: Three-dimensional finite element analysis is used to assess the biomechanical performance of mandibles in eleven ungulate taxa with well-established but distinct dietary preferences and finds that mandibular morphologies reflect the masticatory demands of specific ingesta within the orders Artiodactyla and PerissodactylA.
References
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Journal ArticleDOI
The Functional Significance of Primate Mandibular Form
TL;DR: A stress analysis of the primate mandible suggests that vertically deep jaws in the molar region are usually an adaptation to counter increased sagittal bending stress about the balancing‐side mandibular corpus during unilateral mastication.
Journal ArticleDOI
Stress and strain in the mandibular symphysis of primates: a test of competing hypotheses.
TL;DR: The data suggest that during the power stroke of mastication, the macaque symphysis is predominately sheared dorsoventrally and/or twisted about a transverse axis and bent by lateral transverse bending of the mandibular corpora.
Journal ArticleDOI
Mandibular function in Galago crassicaudatus and Macaca fascicularis: an in vivo approach to stress analysis of the mandible.
TL;DR: Single‐element and/or rosette strain gages were bonded to mandibular cortical bone in Galago crassicaudatus and Macaca fascicularis to record bone strain during transducer biting and during mastication and ingestion of food objects.
Journal ArticleDOI
Mandibular Function and Biomechanical Stress and Scaling
TL;DR: The stress analysis and an allometric analysis of mandibular dimensions in female cercopithecine (Old World) monkeys indicates that allometric changes in the symphysis are readily understood if the mandible is modelled as a curved beam.
Journal ArticleDOI
Variations in cortical material properties throughout the human dentate mandible.
TL;DR: The results suggest that material properties and directional variations have an important impact on mandibular mechanics, and limited evidence suggests that the orientations and anisotropies of cortical elastic properties correspond with features of cortical bone microstructure, although the relationship with functional stresses and strains is not clear.
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