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Neandertal incisor beveling

P S Ungar1, K J Fennell, K Gordon

  • 1Department of Anthropology, University of Arkansas, Fayetteville 72701, USA.

Journal of Human Evolution
|May 1, 1997
PubMed
Summary
This summary is machine-generated.

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Neandertal incisor wear shows significantly greater labial beveling compared to modern humans, suggesting unique wear patterns. This difference in the degree of beveling, not the pattern, distinguishes Neandertals.

Area of Science:

  • Paleoanthropology
  • Dental Anthropology
  • Human Evolution

Background:

  • Neandertals exhibit accelerated dental attrition and labial beveling of incisors.
  • Previous interpretations link this to diet, paramastication, and facial morphology.

Purpose of the Study:

  • To examine the rate of incisor beveling relative to tooth wear in Neandertals, Inuits, and Puebloan Amerindians.
  • To determine if Neandertals exhibit distinct incisor wear patterns compared to recent human populations.

Main Methods:

  • Comparative analysis of central incisor beveling angles across different wear stages.
  • Statistical comparison of beveling rates between Neandertal, Inuit, and Puebloan samples.

Main Results:

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  • All samples show a similar pattern of increased incisor beveling with wear.
  • Neandertals display significantly greater beveling in heavily worn teeth compared to both Inuit and Puebloan samples.
  • Inuits show a nonsignificant trend towards increased beveling compared to Puebloans in worn incisors.

    • Conclusions:

    • The degree of incisor beveling, not the pattern, differentiates Neandertals from recent humans.
    • Hypothesized causes include incisor procumbency, occlusal separation during biting, or increased interproximal wear leading to maxillary incisor tipping, with the latter being most plausible.