Open AccessМодель развития микротрещин в дентине зубов человека на основе данных микротомографии
Author(s) -
Т.С. Аргунова,
Ж.В. Гудкина,
М.Ю. Гуткин
Publication year - 2020
Publication title -
pisʹma v žurnal tehničeskoj fiziki
Language(s) - English
Resource type - Journals
eISSN - 1726-7471
pISSN - 0320-0116
DOI - 10.21883/pjtf.2020.10.49433.18268
Subject(s) - dentin , materials science , composite material , molar , fracture toughness , synchrotron radiation , fibril , cracking , toughness , biophysics , dentistry , optics , medicine , physics , biology
One of the major features of dentin structure is microtubules which pass through the matrix formed by collagen fibrils and hydroxyapatite nanocrystals. The effect of the microtubules on the fracture toughness of dentin has been studied. The samples, prepared from human molars, were subjected to uniaxial compression until cracking. Then these samples were investigated by synchrotron radiation (SR) microtomography. The results obtained allowed us to work out a model of the mode II crack development in human dentin.