The strength properties of human dentinoenamel junction / Zaytsev Dmitry,Panfilov Peter // MATERIALS LETTERS. - 2016. - V. 178, l. . - P. 107-110.

ISSN/EISSN:

0167-577X / 1873-4979

Type:

Article

Abstract:

Deformation behavior of human dentinoenamel junction (DEJ) was studied under shear testing at room temperature. Twenty samples with flat DEJ that contained dentin and enamel in the 1:1 proportion were cut from intact human teeth. DEJ was the shear plane in the samples which were divided into two equal parts under loading. Since deformation curves of the samples with DEJ could be approximated by straight lines and the sample failure occurred through unstable growth of cracks, the deformation behavior was treated as brittle. The shear modulus and the shear strength were 0.31 +/- 0.04 GPa and 16.4 +/- 3.0 MPa, respectively. SEM examination of fracture surfaces showed that cracks propagated in both the dentin and enamel parts of the samples. Hence, the mechanical properties of dentin and enamel were similar in vicinity of DEJ. (C) 2016 Elsevier B.V. All rights reserved.

Author keywords:

Dentin; Enamel; Dentinoenamel junction; Mechanical properties; Shear test DENTIN-ENAMEL JUNCTION; MECHANICAL-PROPERTIES; DEFORMATION-BEHAVIOR; HUMAN TEETH; TENSILE-STRENGTH; COMPRESSION; ANISOTROPY; SHAPE

DOI:

10.1016/j.matlet.2016.04.211

Web of Science ID:

ISI:000376991100027

Соавторы в МНС:

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Другие поля

Поле	Значение
Month	SEP 1
Publisher	ELSEVIER SCIENCE BV
Address	PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
Language	English
EISSN	1873-4979
Keywords-Plus	DENTIN-ENAMEL JUNCTION; MECHANICAL-PROPERTIES; DEFORMATION-BEHAVIOR; HUMAN TEETH; TENSILE-STRENGTH; COMPRESSION; ANISOTROPY; SHAPE
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	Russian Science Foundation {[}15-19-10007]
Funding-Text	The reported study was supported by Russian Science Foundation, research project No. 15-19-10007.
Number-of-Cited-References	23
Usage-Count-Last-180-days	5
Usage-Count-Since-2013	12
Journal-ISO	Mater. Lett.
Doc-Delivery-Number	DN3VC