Skip to main content

Enamel thickness and growth rates in modern human permanent first molars over a 2000 year period in Britain

Aris, Christopher, Mahoney, Patrick, O'Hara, Mackie C., Deter, Chris (2020) Enamel thickness and growth rates in modern human permanent first molars over a 2000 year period in Britain. American Journal of Physical Anthropology, 173 (1). pp. 141-157. ISSN 0002-9483. (doi:10.1002/ajpa.24026) (Access to this publication is currently restricted. You may be able to access a copy if URLs are provided) (KAR id:79959)

PDF Author's Accepted Manuscript
Language: English

Restricted to Repository staff only
Contact us about this Publication
XML Word Processing Document (DOCX) Author's Accepted Manuscript
Language: English

Restricted to Repository staff only
Contact us about this Publication
Official URL
https://dx.doi.org/10.1002/ajpa.24026

Abstract

Objectives: This study explores variation and trends in first molar enamel thickness and daily enamel secretion rates over a 2000 year period in Britain.

Results: Enamel thickness differed between some populations, but no temporal trends were identified. Early Anglo-Saxon molars had significantly thinner RET than both Late Anglo-Saxon (p<0.00) and Medieval (p<0.00) molars. Lateral enamel from the Roman molars was significantly thinner than the modern day sample (p=0.04). In contrast, DSRs slowed significantly from the more ancient to the modern day samples in every comparison except the mid lateral enamel region.

Discussion: This study presents the first evidence for a gradual slowing in the daily rate that enamel is secreted in molars over the past 2000 years in Britain. However, this trend was not matched by a change in enamel thickness, which remained fairly consistent over this time period. These findings suggest that modern human molars of similar enamel thickness, from different modern and ancient populations, formed at different rates.

Item Type: Article
DOI/Identification number: 10.1002/ajpa.24026
Uncontrolled keywords: daily secretion rates; enamel development; enamel thickness; modern humans; molars
Subjects: G Geography. Anthropology. Recreation > GN Anthropology
Divisions: Faculties > Social Sciences > School of Anthropology and Conservation > Biological Anthropology
Depositing User: Patrick Mahoney
Date Deposited: 05 Feb 2020 09:23 UTC
Last Modified: 09 Sep 2020 08:11 UTC
Resource URI: https://kar.kent.ac.uk/id/eprint/79959 (The current URI for this page, for reference purposes)
Aris, Christopher: https://orcid.org/0000-0002-4735-8275
Mahoney, Patrick: https://orcid.org/0000-0002-2715-3096
  • Depositors only (login required):