Description and etiology of oral exostoses : the example of a Thai population
Identifieur interne : 000029 ( France/Analysis ); précédent : 000028; suivant : 000030Description and etiology of oral exostoses : the example of a Thai population
Auteurs : Anneliese Léonard [France]Source :
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Abstract
We aim here at participating in a better understanding of oral exostoses as an anatomical variant in order to clarify their possible use in biological anthropology. We propose a new study design that could be applied both on skeletal remains and living individuals and that allows discuss the etiology of oral exostoses. The research has been undertaken on the anatomical reference collection of the faculty of medicine of Chiang Mail, Thailand. The Thai population displays a wide array of expression of oral exostoses and a great genetic homogeneity. The oral exostoses have been scored by presence/absence and their measurements. The genetic component has been evaluated through population homogeneity and the relationships between oral exostoses and dental and cranial anatomical variants. The environmental component includes data on diet, occlusal stress and oral health. Oral exostoses appear as a set of characters linked together and strongly influenced by age. All types of oral exostoses except the palatine exostosis are correlated with sex with a male predominance. Oral exostoses do not belong to hyperostotic variants. The recurring relationships with dental anatomical traits point to a genetic basis. Oral exostoses preferentially arise when the greatest number of healthy, unworn teeth is present, although extensive edentulousnes does not lessen both their presence and their expressivity. The local environmental context is not typical of functional stress. The traditional Asian diet may be a substantial influence because of its bone-promoting composition. A dual participation of both genetic and environmental components to the etiological process implies that oral exostoses are quasi-continuous variants.
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Hal:tel-01138482Le document en format XML
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Bordeaux 1</orgName> <desc> <address> <addrLine>351 cours de la Libération - 33405 Talence cedex</addrLine> <country key="FR"></country> </address> <ref type="url">http://www.u-bordeaux1.fr</ref> </desc> </org></tutelle></tutelles></hal:affiliation><country>France</country></affiliation></author></analytic></biblStruct></sourceDesc></fileDesc><profileDesc><textClass><keywords scheme="mix" xml:lang="en"><term>Asia</term><term>Cranial anatomical variants</term><term>Dental anatomical variants</term><term>Diet</term><term>Functional matrix</term><term>Occlusal stress</term><term>Oral exostose</term><term>Quasicontinuous variation</term><term>Thai population</term></keywords><keywords scheme="mix" xml:lang="fr"><term>Asie</term><term>Exostoses oro-faciales</term><term>Matrice fonctionnelle</term><term>Population thaïlandaise</term><term>Régime alimentaire</term><term>Stress occlusal</term><term>Torus</term><term>Variation quasi-continue</term><term>Variations anatomiques dentaires</term></keywords><keywords scheme="Wicri" type="topic" xml:lang="fr"><term>Asie</term><term>Asie</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">We aim here at participating in a better understanding of oral exostoses as an anatomical variant in order to clarify their possible use in biological anthropology. We propose a new study design that could be applied both on skeletal remains and living individuals and that allows discuss the etiology of oral exostoses. The research has been undertaken on the anatomical reference collection of the faculty of medicine of Chiang Mail, Thailand. The Thai population displays a wide array of expression of oral exostoses and a great genetic homogeneity. The oral exostoses have been scored by presence/absence and their measurements. The genetic component has been evaluated through population homogeneity and the relationships between oral exostoses and dental and cranial anatomical variants. The environmental component includes data on diet, occlusal stress and oral health. Oral exostoses appear as a set of characters linked together and strongly influenced by age. All types of oral exostoses except the palatine exostosis are correlated with sex with a male predominance. Oral exostoses do not belong to hyperostotic variants. The recurring relationships with dental anatomical traits point to a genetic basis. Oral exostoses preferentially arise when the greatest number of healthy, unworn teeth is present, although extensive edentulousnes does not lessen both their presence and their expressivity. The local environmental context is not typical of functional stress. The traditional Asian diet may be a substantial influence because of its bone-promoting composition. A dual participation of both genetic and environmental components to the etiological process implies that oral exostoses are quasi-continuous variants.</div></front></TEI><affiliations><list><country><li>France</li></country></list><tree><country name="France"><noRegion><name sortKey="Leonard, Anneliese" sort="Leonard, Anneliese" uniqKey="Leonard A" first="Anneliese" last="Léonard">Anneliese Léonard</name></noRegion></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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