Form and patterning of anterior tooth wear among aboriginal human groups

Abstract Form and severity of dental attrition was assessed in aboriginal human groups including hunter‐gatherers (Eskimos, Australians) and those with dependence to a varying degree on food production (Southwest U.S. and Ohio American Indians). Wear on anterior teeth was both relatively and absolut...

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Bibliographic Details
Published in:American Journal of Physical Anthropology
Main Author: Hinton, Robert J.
Format: Article in Journal/Newspaper
Language:English
Published: Wiley 1981
Subjects:
Online Access:http://dx.doi.org/10.1002/ajpa.1330540409
https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1002%2Fajpa.1330540409
https://onlinelibrary.wiley.com/doi/pdf/10.1002/ajpa.1330540409
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Summary:Abstract Form and severity of dental attrition was assessed in aboriginal human groups including hunter‐gatherers (Eskimos, Australians) and those with dependence to a varying degree on food production (Southwest U.S. and Ohio American Indians). Wear on anterior teeth was both relatively and absolutely greater in the hunter‐gatherers, as indicated by comparisons of wear on anterior and posterior teeth which come into occlusion at roughly the same time. Distinct differences in form of anterior wear were also apparent: The hunter‐gatherers exhibited steadily increasing incidences of labially rounded wear with greater functional age, while the food‐producing groups showed little or no rounding but instead high frequencies of heavily cupped wear (especially in those with premature loss of posterior teeth). These differences were attributed to nonmasticatory utilization of the front teeth in hunter‐gatherers and to employment of the anterior teeth in masticatory (grinding) activities necessitated by large‐scale molar loss in food producers.