Anisotropy of the mechanical properties of human dentin under shear testing / Zaytsev D., Ivashov A., Panfilov P. // Materials Letters. - 2015. - V. 138, l. . - P. 219-221.

ISSN:

0167577X

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 ∼0.6 GPa, the shear strength ∼65 MPa and the total deformation ∼30%, whereas the shear strength ∼40 MPa and total deformation ∼17% is less for second group but its shear modulus ∼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 ∼17%, whereas after that anisotropy of the mechanical properties should be taken into account. © 2014 Elsevier B.V. All rights reserved.

Author keywords:

Anisotropy; Dentin; Mechanical properties; Shear test

Index keywords:

Mechanical properties; Dentin; Human dentin; Shear testing; Shear tests; Anisotropy

DOI:

10.1016/j.matlet.2014.09.140

Смотреть в Scopus:

https://www.scopus.com/inward/record.uri?eid=2-s2.0-84908337562&doi=10.1016%2fj.matlet.2014.09.140&partnerID=40&md5=383e6bcbcd11da43abb8bf888389fdbe

Соавторы в МНС:

Другие поля

Поле	Значение
Link	https://www.scopus.com/inward/record.uri?eid=2-s2.0-84908337562&doi=10.1016%2fj.matlet.2014.09.140&partnerID=40&md5=383e6bcbcd11da43abb8bf888389fdbe
Affiliations	Ural Federal University, Institute of Natural Sciences, Ekaterinburg, RUS, Russian Federation; Ural State Medical University, Ekaterinburg, Russian Federation
Author Keywords	Anisotropy; Dentin; Mechanical properties; Shear test
Funding Details	14-08-31691, RFBR, Russian Foundation for Basic Research
References	Kinney, J.H., Marshall, S.J., Marshall, G.W., The mechanical properties of human dentin: A critical review and re-evaluation of the dental literature (2003) Crit Rev Oral Biol Med, 14 (1), pp. 13-29; Bechtle, S., Ang, S.F., Schneider, G.A., On the mechanical properties of hierarchically structured biological materials (2010) Biomaterials, 31, pp. 6378-6385; Lertchirakarn, V., Palamara, J.E.A., Messer, H.H., Anisotropy of tensile strength of root dentin (2001) J Dent Res, 80 (2), pp. 453-456; Bo, H., Quanshui, Z., Qing, Z., Jiade, W., Effect of dentine tubules to the mechanical properties of dentin. Part II: Experimental study (2000) Acta Mech Sin, 16 (1), pp. 75-82; Arola, D.D., Reprogel, R.K., Tubule orientation and the fatigue strength of human dentin (2006) Biomaterials, 27 (9), pp. 2131-2140; Watanabe, L.G., Marshall, G.W., Marshal, S.J., Dentin shear strength (1996) Effects of Tubule Orientation and Intratooth Location Dental Materials, 12, pp. 109-115; Waters, N.E., Some mechanical and physical properties of teeth (1980) Symp Soc Exp Biol, 34, pp. 99-135; Nalla, R.K., Kinney, J.H., Rotchie, R.O., Effect of orientation on the in vitro fracture toughness of dentin: The role of toughening mechanisms (2003) Biomaterials, 24, pp. 3955-3968
Correspondence Address	Zaytsev, D.; Ural Federal University, Institute of Natural SciencesRussian Federation
Publisher	Elsevier
CODEN	MLETD
Language of Original Document	English
Abbreviated Source Title	Mater Lett
Source	Scopus