Please use this identifier to cite or link to this item: https://hdl.handle.net/1959.11/20077
Title: Review of 'In Vivo' Bone Strain Studies and Finite Element Models of the Zygomatic Complex in Humans and Nonhuman Primates: Implications for Clinical Research and Practice
Contributor(s): Prado, Felippe Bevilacqua (author); Freire, Alexandre Rodrigues (author); Rossi, Ana Claudia (author); Ledogar, Justin  (author)orcid ; Smith, Amanda L (author); Dechow, Paul C (author); Strait, David S (author); Voigt, Tilman (author); Ross, Callum F (author)
Publication Date: 2016
Open Access: Yes
DOI: 10.1002/ar.23486Open Access Link
Handle Link: https://hdl.handle.net/1959.11/20077
Abstract: The craniofacial skeleton is often described in the clinical literature as being comprised of vertical bony pillars, which transmit forces from the toothrow to the neurocranium as axial compressive stresses, reinforced transversely by buttresses. Here, we review the literature on bony microarchitecture, 'in vivo' bone strain, and finite-element modeling of the facial skeleton of humans and nonhuman primates to address questions regarding the structural and functional existence of facial pillars and buttresses. Available bone material properties data do not support the existence of pillars and buttresses in humans or 'Sapajus apella'. Deformation regimes in the zygomatic complex emphasize bending and shear, therefore conceptualizing the zygomatic complex of humans or nonhuman primates as a pillar obscures its patterns of stress, strain, and deformation. Human fossil relatives and chimpanzees exhibit strain regimes corroborating the existence of a canine-frontal pillar, but the notion of a zygomatic pillar has no support. The emerging consensus on patterns of strain and deformation in finite element models (FEMs) of the human facial skeleton corroborates hypotheses in the clinical literature regarding zygomatic complex function, and provide new insights into patterns of failure of titanium and resorbable plates in experimental studies. It is suggested that the "pillar and buttress" model of human craniofacial skeleton function be replaced with FEMs that more accurately and precisely represent in vivo function, and which can serve as the basis for future research into implants used in restoration of occlusal function and fracture repair.
Publication Type: Journal Article
Source of Publication: The Anatomical Record, 299(12), p. 1753-1778
Publisher: John Wiley & Sons, Inc
Place of Publication: United States of America
ISSN: 1932-8494
1932-8486
Fields of Research (FoR) 2008: 060399 Evolutionary Biology not elsewhere classified
110601 Biomechanics
160102 Biological (Physical) Anthropology
Fields of Research (FoR) 2020: 420701 Biomechanics
440103 Biological (physical) anthropology
Socio-Economic Objective (SEO) 2008: 970106 Expanding Knowledge in the Biological Sciences
970111 Expanding Knowledge in the Medical and Health Sciences
Socio-Economic Objective (SEO) 2020: 280102 Expanding knowledge in the biological sciences
Peer Reviewed: Yes
HERDC Category Description: C1 Refereed Article in a Scholarly Journal
Appears in Collections:Journal Article

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