Abstract:
Theoretical models of viscoelastic behavior and plastic deformation mechanisms of human dentin are considered. Using the linear viscoelasticity theory in which creep and relaxation kernels have the form of fraction-exponential functions, numerical values of instantaneous and long-time Young’s moduli and other characteristics of dentin viscoelasticity under uniaxial compression are found. As dentin plastic deformation mechanisms, mutual collagen fiber sliding in the region of contact of their side surfaces, separation of these fibers from each other, and irreversible tension of some collagen fibers, are proposed. It is shown that the second mechanism activation requires a smaller stress than that for activating others. The models of plastic zones at the mode I crack tip, which correspond to these mechanisms, are studied. It is shown that the plastic zone size can increase from a few hundreds of nanometers to hundreds of micrometers with increasing applied stress.
Citation:
I. N. Borodin, S. Seyedkavoosi, D. V. Zaytsev, B. Drach, K. N. Mikaelyan, P. E. Panfilov, M. Yu. Gutkin, I. Sevostianov, “Viscoelasticity and plasticity mechanisms of human dentin”, Fizika Tverdogo Tela, 60:1 (2018), 118–126; Phys. Solid State, 60:1 (2018), 120–128
\Bibitem{BorSeyZay18}
\by I.~N.~Borodin, S.~Seyedkavoosi, D.~V.~Zaytsev, B.~Drach, K.~N.~Mikaelyan, P.~E.~Panfilov, M.~Yu.~Gutkin, I.~Sevostianov
\paper Viscoelasticity and plasticity mechanisms of human dentin
\jour Fizika Tverdogo Tela
\yr 2018
\vol 60
\issue 1
\pages 118--126
\mathnet{http://mi.mathnet.ru/ftt9337}
\crossref{https://doi.org/10.21883/FTT.2018.01.45298.188}
\elib{https://elibrary.ru/item.asp?id=32737387}
\transl
\jour Phys. Solid State
\yr 2018
\vol 60
\issue 1
\pages 120--128
\crossref{https://doi.org/10.1134/S1063783418010079}
Linking options:
https://www.mathnet.ru/eng/ftt9337
https://www.mathnet.ru/eng/ftt/v60/i1/p118
This publication is cited in the following 5 articles:
Michele Basilicata, Roberto Montanari, Maria Richetta, Mechanisms and Machine Science, 162, Engineering Methodologies for Medicine and Sports, 2024, 29
Fei Lin, Ronald Ordinola-Zapata, Ning Ye, Haiping Xu, Alex S.L. Fok, “Fatigue analysis of restored teeth longitudinally cracked under cyclic loading”, Dental Materials, 38:1 (2022), 204
Yusen Chen, Rui Wu, Lulu Shen, Yabin Yang, Guannan Wang, Bo Yang, “The multi-scale meso-mechanics model of viscoelastic dentin”, Journal of the Mechanical Behavior of Biomedical Materials, 136 (2022), 105525
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”, Tech. Phys., 65:9 (2020), 1391–1402
Anna S. Bobrovskaia, Sergey S. Gavriushin, Alexander V. Mitronin, Advances in Intelligent Systems and Computing, 902, Advances in Artificial Systems for Medicine and Education II, 2020, 261