Tooth wear development in the Australian Aboriginal dentition from Yuendumu: A longitudinal study.

The analysis of dental wear, at both the microscopic and macroscopic scale, is one of the most widely used tools in archeology and anthropology to reconstruct the diet and lifestyle of past human populations. Biomechanical studies have indicated that tooth wear helps to dissipate the mechanical load...

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Autores principales:	Jinyoung Lee, Sarah Fung, Robin Yong, Sarbin Ranjitkar, John Kaidonis, Alistair R Evans, Luca Fiorenza
Formato:	article
Lenguaje:	EN
Publicado:	Public Library of Science (PLoS) 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/970edfe9a8d643b7821b8abf0f3f7c85
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spelling	oai:doaj.org-article:970edfe9a8d643b7821b8abf0f3f7c852021-12-02T20:09:23ZTooth wear development in the Australian Aboriginal dentition from Yuendumu: A longitudinal study.1932-620310.1371/journal.pone.0254151https://doaj.org/article/970edfe9a8d643b7821b8abf0f3f7c852021-01-01T00:00:00Zhttps://doi.org/10.1371/journal.pone.0254151https://doaj.org/toc/1932-6203The analysis of dental wear, at both the microscopic and macroscopic scale, is one of the most widely used tools in archeology and anthropology to reconstruct the diet and lifestyle of past human populations. Biomechanical studies have indicated that tooth wear helps to dissipate the mechanical load over the crown surface, thus reducing the risk of tooth fracture. To date, there are only a few studies that have examined functional tooth wear variation in modern humans. Here we propose to study masticatory efficiency through the use of the Occlusal Fingerprint Analysis method, a well-developed digital approach that allows the reconstruction of the occlusal dynamics occurring during mastication. The aim of this study is to provide the first longitudinal quantitative data of molar and premolar macrowear patterns within a functional context. We examined the mixed and permanent dentition of one Australian Aboriginal child (from ages 8 to 17) from Yuendumu, using high-resolution surface scans of dental casts including both upper and lower arches. Our results suggest that the occlusal macrowear patterns of this individual did not significantly change through time. Occlusal contact parameters such as functional area, inclination and direction remain relatively unaltered throughout childhood and adolescence, indicating little change in the masticatory function of this individual. The functional tooth wear pattern in this individual did not change longitudinally indicating the degree of masticatory efficiency has most probably remained unaltered.Jinyoung LeeSarah FungRobin YongSarbin RanjitkarJohn KaidonisAlistair R EvansLuca FiorenzaPublic Library of Science (PLoS)articleMedicineRScienceQENPLoS ONE, Vol 16, Iss 7, p e0254151 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Jinyoung Lee Sarah Fung Robin Yong Sarbin Ranjitkar John Kaidonis Alistair R Evans Luca Fiorenza Tooth wear development in the Australian Aboriginal dentition from Yuendumu: A longitudinal study.
description	The analysis of dental wear, at both the microscopic and macroscopic scale, is one of the most widely used tools in archeology and anthropology to reconstruct the diet and lifestyle of past human populations. Biomechanical studies have indicated that tooth wear helps to dissipate the mechanical load over the crown surface, thus reducing the risk of tooth fracture. To date, there are only a few studies that have examined functional tooth wear variation in modern humans. Here we propose to study masticatory efficiency through the use of the Occlusal Fingerprint Analysis method, a well-developed digital approach that allows the reconstruction of the occlusal dynamics occurring during mastication. The aim of this study is to provide the first longitudinal quantitative data of molar and premolar macrowear patterns within a functional context. We examined the mixed and permanent dentition of one Australian Aboriginal child (from ages 8 to 17) from Yuendumu, using high-resolution surface scans of dental casts including both upper and lower arches. Our results suggest that the occlusal macrowear patterns of this individual did not significantly change through time. Occlusal contact parameters such as functional area, inclination and direction remain relatively unaltered throughout childhood and adolescence, indicating little change in the masticatory function of this individual. The functional tooth wear pattern in this individual did not change longitudinally indicating the degree of masticatory efficiency has most probably remained unaltered.
format	article
author	Jinyoung Lee Sarah Fung Robin Yong Sarbin Ranjitkar John Kaidonis Alistair R Evans Luca Fiorenza
author_facet	Jinyoung Lee Sarah Fung Robin Yong Sarbin Ranjitkar John Kaidonis Alistair R Evans Luca Fiorenza
author_sort	Jinyoung Lee
title	Tooth wear development in the Australian Aboriginal dentition from Yuendumu: A longitudinal study.
title_short	Tooth wear development in the Australian Aboriginal dentition from Yuendumu: A longitudinal study.
title_full	Tooth wear development in the Australian Aboriginal dentition from Yuendumu: A longitudinal study.
title_fullStr	Tooth wear development in the Australian Aboriginal dentition from Yuendumu: A longitudinal study.
title_full_unstemmed	Tooth wear development in the Australian Aboriginal dentition from Yuendumu: A longitudinal study.
title_sort	tooth wear development in the australian aboriginal dentition from yuendumu: a longitudinal study.
publisher	Public Library of Science (PLoS)
publishDate	2021
url	https://doaj.org/article/970edfe9a8d643b7821b8abf0f3f7c85
work_keys_str_mv	AT jinyounglee toothweardevelopmentintheaustralianaboriginaldentitionfromyuendumualongitudinalstudy AT sarahfung toothweardevelopmentintheaustralianaboriginaldentitionfromyuendumualongitudinalstudy AT robinyong toothweardevelopmentintheaustralianaboriginaldentitionfromyuendumualongitudinalstudy AT sarbinranjitkar toothweardevelopmentintheaustralianaboriginaldentitionfromyuendumualongitudinalstudy AT johnkaidonis toothweardevelopmentintheaustralianaboriginaldentitionfromyuendumualongitudinalstudy AT alistairrevans toothweardevelopmentintheaustralianaboriginaldentitionfromyuendumualongitudinalstudy AT lucafiorenza toothweardevelopmentintheaustralianaboriginaldentitionfromyuendumualongitudinalstudy
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Tooth wear development in the Australian Aboriginal dentition from Yuendumu: A longitudinal study.

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