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The potential of statistical shape modelling for geometric morphometric analysis of human teeth in archaeological research

The potential of statistical shape modelling for geometric morphometric analysis of human teeth in archaeological research
The potential of statistical shape modelling for geometric morphometric analysis of human teeth in archaeological research
This paper introduces statistical shape modelling (SSM) for use in osteoarchaeology research. SSM is a full field, multi-material analytical technique, and is presented as a supplementary geometric morphometric (GM) tool. Lower mandibular canines from two archaeological populations and one modern population were sampled, digitised using micro-CT, aligned, registered to a baseline and statistically modelled using principal component analysis (PCA). Sample material properties were incorporated as a binary enamel/dentin parameter. Results were assessed qualitatively and quantitatively using anatomical landmarks. Finally, the technique's application was demonstrated for intersample comparison through analysis of the principal component (PC) weights. It was found that SSM could provide high detail qualitative and quantitative insight with respect to archaeological inter- and intra-sample variability. This technique has value for archaeological, biomechanical and forensic applications including identification, finite element analysis (FEA) and reconstruction from partial datasets.
Forensics, Archaeology, Bioengineering, canine, Dental, GM, Geometric Morphometrics, SSM, statistical shape and material modelling, statistical shape modelling, Statistical Modelling
Woods, Christopher
5ea42fb4-9429-4d53-a13f-5d9a2bc4a88c
Fernee, Christianne
2f5dd641-8e20-45a9-9ca0-5cc48860474a
Browne, Martin
6578cc37-7bd6-43b9-ae5c-77ccb7726397
Zakrzewski, Sonia
d80afd94-feff-4fe8-96e9-f3db79bba99d
Dickinson, Alexander
10151972-c1b5-4f7d-bc12-6482b5870cad
Woods, Christopher
5ea42fb4-9429-4d53-a13f-5d9a2bc4a88c
Fernee, Christianne
2f5dd641-8e20-45a9-9ca0-5cc48860474a
Browne, Martin
6578cc37-7bd6-43b9-ae5c-77ccb7726397
Zakrzewski, Sonia
d80afd94-feff-4fe8-96e9-f3db79bba99d
Dickinson, Alexander
10151972-c1b5-4f7d-bc12-6482b5870cad

Woods, Christopher, Fernee, Christianne, Browne, Martin, Zakrzewski, Sonia and Dickinson, Alexander (2017) The potential of statistical shape modelling for geometric morphometric analysis of human teeth in archaeological research. PLoS ONE, 12 (12), [e0186754]. (doi:10.1371/journal.pone.0186754).

Record type: Article

Abstract

This paper introduces statistical shape modelling (SSM) for use in osteoarchaeology research. SSM is a full field, multi-material analytical technique, and is presented as a supplementary geometric morphometric (GM) tool. Lower mandibular canines from two archaeological populations and one modern population were sampled, digitised using micro-CT, aligned, registered to a baseline and statistically modelled using principal component analysis (PCA). Sample material properties were incorporated as a binary enamel/dentin parameter. Results were assessed qualitatively and quantitatively using anatomical landmarks. Finally, the technique's application was demonstrated for intersample comparison through analysis of the principal component (PC) weights. It was found that SSM could provide high detail qualitative and quantitative insight with respect to archaeological inter- and intra-sample variability. This technique has value for archaeological, biomechanical and forensic applications including identification, finite element analysis (FEA) and reconstruction from partial datasets.

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Accepted/In Press date: 9 October 2017
e-pub ahead of print date: 7 December 2017
Published date: 7 December 2017
Keywords: Forensics, Archaeology, Bioengineering, canine, Dental, GM, Geometric Morphometrics, SSM, statistical shape and material modelling, statistical shape modelling, Statistical Modelling

Identifiers

Local EPrints ID: 414858
URI: http://eprints.soton.ac.uk/id/eprint/414858
PURE UUID: 9b5a0b75-f1ee-4157-afc7-f0bdda5dc7e2
ORCID for Martin Browne: ORCID iD orcid.org/0000-0001-5184-050X
ORCID for Sonia Zakrzewski: ORCID iD orcid.org/0000-0003-1796-065X
ORCID for Alexander Dickinson: ORCID iD orcid.org/0000-0002-9647-1944

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Date deposited: 12 Oct 2017 16:31
Last modified: 09 Jan 2022 03:23

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Contributors

Author: Christopher Woods
Author: Christianne Fernee
Author: Martin Browne ORCID iD

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