Anisotropy of the mechanical properties of human dentin under shear testing / Zaytsev Dmitry,Ivashov Alexander,Panfilov Peter // MATERIALS LETTERS. - 2015. - V. 138, l. . - P. 219-221.

ISSN/EISSN:

0167-577X / 1873-4979

Type:

Article

Abstract:

The relationship between of deformation behavior and the orientation of dentin tubules under shear testing is studied. Three orientations of dentin tubules are chosen: (1) dentin tubules lie both parallel to the plane of shift and perpendicular to the direction of loading; (2) they lie both perpendicular to the plane of shift and perpendicular to the direction of loading and (3) the dentin tubules are oriented both parallel to the plane of shift and parallel to the direction of loading. Deformation behavior of the fist and the second groups are the same: the shear modulus similar to 0.6 GPa, the shear strength similar to 65 MPa and the total deformation similar to 30\%, whereas the shear strength similar to 40 MPa and total deformation similar to 17\% is less for second group but its shear modulus similar to 0.6 GPa is the same. Therefore, the direction laid in plane normal to the dentin tubules is easy for fracture. In spite of these differences, human dentin can be considered as an isotropic material at deformation up to similar to 17\%, whereas after that anisotropy of the mechanical properties should be taken into account. (C) 2014 Elsevier B.V. All rights reserved.

Author keywords:

Dentin; Mechanical properties; Shear test; Anisotropy TUBULE ORIENTATION; STRENGTH

DOI:

10.1016/j.matlet.2014.09.140

Web of Science ID:

ISI:000345637900059

Соавторы в МНС:

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Другие поля

Поле	Значение
Month	JAN 1
Publisher	ELSEVIER SCIENCE BV
Address	PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
Language	English
EISSN	1873-4979
Keywords-Plus	TUBULE ORIENTATION; STRENGTH
Research-Areas	Materials Science; Physics
Web-of-Science-Categories	Materials Science, Multidisciplinary; Physics, Applied
Author-Email	Dmitry.Zaytsev@urfu.ru
ResearcherID-Numbers	Zaytsev, Dmitry/H-1162-2014
Funding-Acknowledgement	RFBR {[}14-08-31691]
Funding-Text	The reported study was supported by RFBR, research project no. 14-08-31691.
Number-of-Cited-References	8
Usage-Count-Since-2013	6
Journal-ISO	Mater. Lett.
Doc-Delivery-Number	AU5HP