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Zhurnal Tekhnicheskoi Fiziki, 2020, Volume 90, Issue 9, Pages 1449–1461
DOI: https://doi.org/10.21883/JTF.2020.09.49675.442-19 (Mi jtf5199) 		 
This article is cited in 2 scientific papers (total in 2 papers)

III International Conference Physics -- Life Sciences
Nanomaterials in biology and medicine

Study of dentin structural features by computed microtomography and transmission electron microscopy

T. S. Argunovaa, Zh. V. Gudkinaab, M. Yu. Gutkinbcd, D. V. Zaytsevef, A. E. Kalmykova, A. V. Myasoedova, E. D. Nazarovaab, P. E. Panfilove, L. M. Sorokina

a Ioffe Institute, St. Petersburg
b Peter the Great St. Petersburg Polytechnic University
c Institute of Problems of Mechanical Engineering, Russian Academy of Sciences, St. Petersburg
d St. Petersburg National Research University of Information Technologies, Mechanics and Optics
e Ural Federal University named after the First President of Russia B. N. Yeltsin, Ekaterinburg
f Institute of High-Temperature Electrochemistry, RAS, Yekaterinburg, Russia
Full-text PDF (4118 kB) Citations (2)
DOI: https://doi.org/10.21883/JTF.2020.09.49675.442-19
Abstract: Dentin of human teeth is a natural composite material with a layered hierarchical structure; it is formed by micro- and nanostructures whose complex relations obey the laws not yet fully understood. In order to understand the effect of the dentin structure on its mechanical properties, a study of dentin samples prepared from human molars and subjected to a uniaxial compression was made. Synchrotron X-ray microtomography and transmission electron microscopy were employed to investigate the elements of dentin matrix and the tubules which cross the matrix. Single structural features based on the interaction of the elements, as well as the properties of the dentinal tubules, which can stop crack propagation have been investigated. A model is proposed for calculating the conditions of stopping of a mode II crack by generation of secondary cracks caused by the stresses over the surfaces of the tubules.
Keywords: X-ray microtomography, transmission electron microscopy, dentin, toughness.
Funding agency Grant number
Russian Foundation for Basic Research 19-29-12041 мк
18-38-20097
Ministry of Education and Science of the Russian Federation RFMEFI62117X0018
T.S. Argunova is grateful to the Russian Foundation for Basic Research (RFBR) for the support of experiments involving the use of SR, grant no. 19-29-12041 mk. TEM studies were performed using the equipment of the Federal Center for Collective Use “Materials Science and Diagnostics in Advanced Technologies” with the support of the Ministry of Education and Science of the Russian Federation, project ID: RFMEFI62117X0018. M.Yu. Gutkin and D.V. Zaytsev are grateful to the RFBR for funding the development of the theoretical model of dentin degradation, grant no. 18-38-20097.
Received: 31.12.2019
Revised: 31.12.2019
Accepted: 17.02.2020
English version:
Technical Physics, 2020, Volume 65, Issue 9, Pages 1391–1402
DOI: https://doi.org/10.1134/S1063784220090054
Bibliographic databases:
Document Type: Article
Language: Russian
Citation: T. S. Argunova, Zh. V. Gudkina, M. Yu. Gutkin, D. V. Zaytsev, A. E. Kalmykov, A. V. Myasoedov, E. D. Nazarova, P. E. Panfilov, L. M. Sorokin, “Study of dentin structural features by computed microtomography and transmission electron microscopy”, Zhurnal Tekhnicheskoi Fiziki, 90:9 (2020), 1449–1461; Tech. Phys., 65:9 (2020), 1391–1402
Citation in format AMSBIB
\Bibitem{ArgGudGut20}
\by T.~S.~Argunova, Zh.~V.~Gudkina, M.~Yu.~Gutkin, D.~V.~Zaytsev, A.~E.~Kalmykov, A.~V.~Myasoedov, E.~D.~Nazarova, P.~E.~Panfilov, L.~M.~Sorokin
\paper Study of dentin structural features by computed microtomography and transmission electron microscopy
\jour Zhurnal Tekhnicheskoi Fiziki
\yr 2020
\vol 90
\issue 9
\pages 1449--1461
\mathnet{http://mi.mathnet.ru/jtf5199}
\crossref{https://doi.org/10.21883/JTF.2020.09.49675.442-19}
\elib{https://elibrary.ru/item.asp?id=44154262}
\transl
\jour Tech. Phys.
\yr 2020
\vol 65
\issue 9
\pages 1391--1402
\crossref{https://doi.org/10.1134/S1063784220090054}
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