Anisotropy of the mechanical properties of human dental enamel / Zaytsev D., Panfilov P. // Materials Letters. - 2015. - V. 159, l. . - P. 428-431.

ISSN:
0167577X
Type:
Article
Abstract:
Human dental enamel is oriented hierarchical biological structure, which covered the upper part of a tooth. Its high biomechanical properties provide protection of a tooth from influence of such external factors as imposed loads and oral environment. In this work, we examine how orientation of enamel rods rules by the mechanical properties of human enamel, using experimental mechanics. Shear testing of the enamel samples in the three planes relatively to the direction of enamel rods shed new light on the mechanism of stress accommodation in human dental enamel. It was revealed that enamel is macroscopically anisotropic hard tissue insomuch as its strength and the deformation in direction, which is normal to the enamel rods, is in ∼3 to 7 times higher than in directions parallel to the enamel rods. Despite it can be considered as isotropic solid up to ∼5% of shear deformation. Irreversible deformation of enamel occurs when loading is applied normally to the enamel rods. © 2015, Elsevier B.V. All rights reserved.
Author keywords:
Anisotropy; Enamel; Enamel rod; Mechanical properties; Shear test
Index keywords:
Anisotropy; Biomechanics; Degrees of freedom (mechanics); Enameling; Enamels; Mechanical properties; Biological structures; Biomechanical properties; Experimental mechanics; External factors; Human de
DOI:
10.1016/j.matlet.2015.07.057
Смотреть в Scopus:
https://www.scopus.com/inward/record.uri?eid=2-s2.0-84937569203&doi=10.1016%2fj.matlet.2015.07.057&partnerID=40&md5=54f1216ae7324d31e58bbe30509159d1
Соавторы в МНС:
Другие поля
Поле Значение
Link https://www.scopus.com/inward/record.uri?eid=2-s2.0-84937569203&doi=10.1016%2fj.matlet.2015.07.057&partnerID=40&md5=54f1216ae7324d31e58bbe30509159d1
Affiliations Department of Physics, Institute of Natural Sciences, Ural Federal University, Lenin Avenue, 51, Ekaterinburg, Russian Federation
Author Keywords Anisotropy; Enamel; Enamel rod; Mechanical properties; Shear test
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Correspondence Address Zaytsev, D.; Department of Physics, Institute of Natural Sciences, Ural Federal University, Lenin Avenue, 51, Russian Federation
Publisher Elsevier
CODEN MLETD
Language of Original Document English
Abbreviated Source Title Mater Lett
Source Scopus