Modeling tooth enamel in FEA comparisons of skulls: Comparing common simplifications with biologically realistic models

Summary: Palaeontologists often use finite element analyses, in which forces propagate through objects with specific material properties, to investigate feeding biomechanics. Teeth are usually modeled with uniform properties (all bone or all enamel). In reality, most teeth are composed of pulp, dent...

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Autores principales:	Eva C. Herbst, Stephan Lautenschlager, Dylan Bastiaans, Feiko Miedema, Torsten M. Scheyer
Formato:	article
Lenguaje:	EN
Publicado:	Elsevier 2021
Materias:	paleontology biophysics biomechanics biomaterials Science Q
Acceso en línea:	https://doaj.org/article/be0f87ab0ce5484380d9e502cbcab1b0
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spelling	oai:doaj.org-article:be0f87ab0ce5484380d9e502cbcab1b02021-11-20T05:08:16ZModeling tooth enamel in FEA comparisons of skulls: Comparing common simplifications with biologically realistic models2589-004210.1016/j.isci.2021.103182https://doaj.org/article/be0f87ab0ce5484380d9e502cbcab1b02021-11-01T00:00:00Zhttp://www.sciencedirect.com/science/article/pii/S2589004221011500https://doaj.org/toc/2589-0042Summary: Palaeontologists often use finite element analyses, in which forces propagate through objects with specific material properties, to investigate feeding biomechanics. Teeth are usually modeled with uniform properties (all bone or all enamel). In reality, most teeth are composed of pulp, dentine, and enamel. We tested how simplified teeth compare to more realistic models using mandible models of three reptiles. For each, we created models representing enamel thicknesses found in extant taxa, as well as simplified models (bone, dentine or enamel). Our results suggest that general comparisons of stress distribution among distantly related taxa do not require representation of dental tissues, as there was no noticeable effect on heatmap representations of stress. However, we find that representation of dental tissues impacts bite force estimates, although magnitude of these effects may differ depending on constraints. Thus, as others have shown, the detail necessary in a biomechanical model relates to the questions being examined.Eva C. HerbstStephan LautenschlagerDylan BastiaansFeiko MiedemaTorsten M. ScheyerElsevierarticlepaleontologybiophysicsbiomechanicsbiomaterialsScienceQENiScience, Vol 24, Iss 11, Pp 103182- (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	paleontology biophysics biomechanics biomaterials Science Q
spellingShingle	paleontology biophysics biomechanics biomaterials Science Q Eva C. Herbst Stephan Lautenschlager Dylan Bastiaans Feiko Miedema Torsten M. Scheyer Modeling tooth enamel in FEA comparisons of skulls: Comparing common simplifications with biologically realistic models
description	Summary: Palaeontologists often use finite element analyses, in which forces propagate through objects with specific material properties, to investigate feeding biomechanics. Teeth are usually modeled with uniform properties (all bone or all enamel). In reality, most teeth are composed of pulp, dentine, and enamel. We tested how simplified teeth compare to more realistic models using mandible models of three reptiles. For each, we created models representing enamel thicknesses found in extant taxa, as well as simplified models (bone, dentine or enamel). Our results suggest that general comparisons of stress distribution among distantly related taxa do not require representation of dental tissues, as there was no noticeable effect on heatmap representations of stress. However, we find that representation of dental tissues impacts bite force estimates, although magnitude of these effects may differ depending on constraints. Thus, as others have shown, the detail necessary in a biomechanical model relates to the questions being examined.
format	article
author	Eva C. Herbst Stephan Lautenschlager Dylan Bastiaans Feiko Miedema Torsten M. Scheyer
author_facet	Eva C. Herbst Stephan Lautenschlager Dylan Bastiaans Feiko Miedema Torsten M. Scheyer
author_sort	Eva C. Herbst
title	Modeling tooth enamel in FEA comparisons of skulls: Comparing common simplifications with biologically realistic models
title_short	Modeling tooth enamel in FEA comparisons of skulls: Comparing common simplifications with biologically realistic models
title_full	Modeling tooth enamel in FEA comparisons of skulls: Comparing common simplifications with biologically realistic models
title_fullStr	Modeling tooth enamel in FEA comparisons of skulls: Comparing common simplifications with biologically realistic models
title_full_unstemmed	Modeling tooth enamel in FEA comparisons of skulls: Comparing common simplifications with biologically realistic models
title_sort	modeling tooth enamel in fea comparisons of skulls: comparing common simplifications with biologically realistic models
publisher	Elsevier
publishDate	2021
url	https://doaj.org/article/be0f87ab0ce5484380d9e502cbcab1b0
work_keys_str_mv	AT evacherbst modelingtoothenamelinfeacomparisonsofskullscomparingcommonsimplificationswithbiologicallyrealisticmodels AT stephanlautenschlager modelingtoothenamelinfeacomparisonsofskullscomparingcommonsimplificationswithbiologicallyrealisticmodels AT dylanbastiaans modelingtoothenamelinfeacomparisonsofskullscomparingcommonsimplificationswithbiologicallyrealisticmodels AT feikomiedema modelingtoothenamelinfeacomparisonsofskullscomparingcommonsimplificationswithbiologicallyrealisticmodels AT torstenmscheyer modelingtoothenamelinfeacomparisonsofskullscomparingcommonsimplificationswithbiologicallyrealisticmodels
_version_	1718419563736989696

Modeling tooth enamel in FEA comparisons of skulls: Comparing common simplifications with biologically realistic models

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