title: CÑÑÑÐºÑÑÑÐ° Ð´ÐµÐ½ÑÐ¸Ð½Ð° Ð¿Ð¾ Ð´Ð°Ð½Ð½ÑÐ¼ Ð¼Ð¸ÐºÑÐ¾ÑÐ¾Ð¼Ð¾Ð³ÑÐ°ÑÐ¸Ð¸ Ð¸ Ð¿ÑÐ¾ÑÐ²ÐµÑÐ¸Ð²Ð°ÑÑÐµÐ¹ ÑÐ»ÐµÐºÑÑÐ¾Ð½Ð½Ð¾Ð¹ Ð¼Ð¸ÐºÑÐ¾ÑÐºÐ¾Ð¿Ð¸Ð¸
title: Ð²ÑÐ¿ÑÑÐºÐ½Ð°Ñ ÐºÐ²Ð°Ð»Ð¸ÑÐ¸ÐºÐ°ÑÐ¸Ð¾Ð½Ð½Ð°Ñ ÑÐ°Ð±Ð¾ÑÐ° Ð±Ð°ÐºÐ°Ð»Ð°Ð²ÑÐ°
titleType: Subtitle
title: Dentin structure according to microtomography and transmission electron microscopy
Creators: name: ÐÐ°Ð·Ð°ÑÐ¾Ð²Ð°, ÐÐ»Ð¸Ð·Ð°Ð²ÐµÑÐ°
Publisher: name: Ð¡Ð°Ð½ÐºÑ-ÐÐµÑÐµÑÐ±ÑÑÐ³ÑÐºÐ¸Ð¹ Ð¿Ð¾Ð»Ð¸ÑÐµÑÐ½Ð¸ÑÐµÑÐºÐ¸Ð¹ ÑÐ½Ð¸Ð²ÐµÑÑÐ¸ÑÐµÑ ÐÐµÑÑÐ° ÐÐµÐ»Ð¸ÐºÐ¾Ð³Ð¾
Year: 2019
Subjects: Ð´ÐµÐ½ÑÐ¸Ð½
Ð¿ÑÐ¾ÑÐ½Ð¾ÑÑÑ
Ð¼Ð¸ÐºÑÐ¾ÐºÐ°Ð½Ð°Ð»Ñ
Ð¼Ð¸ÐºÑÐ¾ÑÐ¾Ð¼Ð¾Ð³ÑÐ°ÑÐ¸Ñ
ÐºÐ¾Ð»Ð»Ð°Ð³ÐµÐ½
Ð¼Ð¸Ð½ÐµÑÐ°Ð»
ÑÐ»ÐµÐºÑÑÐ¾Ð½Ð½Ð°Ñ Ð¼Ð¸ÐºÑÐ¾ÑÐºÐ¾Ð¿Ð¸Ñ
dentin
strength
tubules
microtomography
collagen
mineral
transmission electron microscopy

description: ÐÑÐ¿ÑÑÐºÐ½Ð°Ñ ÐºÐ²Ð°Ð»Ð¸ÑÐ¸ÐºÐ°ÑÐ¸Ð¾Ð½Ð½Ð°Ñ ÑÐ°Ð±Ð¾ÑÐ° Ð¿Ð¾ÑÐ²ÑÑÐµÐ½Ð° Ð¸Ð·ÑÑÐµÐ½Ð¸Ñ ÑÑÑÑÐºÑÑÑÑ Ð´ÐµÐ½ÑÐ¸Ð½Ð° Ð½Ð° Ð¼Ð¸ÐºÑÐ¾- Ð¸ Ð½Ð°Ð½Ð¾-ÑÑÐ¾Ð²Ð½Ðµ Ð² ÑÐ²ÑÐ·Ð¸ Ñ ÐµÐ³Ð¾ Ð¼ÐµÑÐ°Ð½Ð¸ÑÐµÑÐºÐ¸Ð¼Ð¸ ÑÐ²Ð¾Ð¹ÑÑÐ²Ð°Ð¼Ð¸. ÐÐµÐ½ÑÐ¸Ð½ Ð¾Ð±Ð»Ð°Ð´Ð°ÐµÑ ÑÐ½Ð¸ÐºÐ°Ð»ÑÐ½ÑÐ¼Ð¸ Ð¼ÐµÑÐ°Ð½Ð¸ÑÐµÑÐºÐ¸Ð¼Ð¸ ÑÐ²Ð¾Ð¹ÑÑÐ²Ð°Ð¼Ð¸ Ð±Ð»Ð°Ð³Ð¾Ð´Ð°ÑÑ ÑÐ²Ð¾ÐµÐ¹ ÑÐ»Ð¾Ð¶Ð½Ð¾Ð¹ Ð¼Ð½Ð¾Ð³Ð¾ÑÑÐ¾Ð²Ð½ÐµÐ²Ð¾Ð¹ ÑÑÑÑÐºÑÑÑÐµ. ÐÐºÑÑÐ°Ð»ÑÐ½Ð¾ÑÑÑ Ð¸Ð·ÑÑÐµÐ½Ð¸Ñ Ð´ÐµÐ½ÑÐ¸Ð½Ð° Ð½Ðµ Ð¾Ð³ÑÐ°Ð½Ð¸ÑÐµÐ½Ð° ÑÐ°Ð¼ÐºÐ°Ð¼Ð¸ Ð¼ÐµÐ´Ð¸ÑÐ¸Ð½Ñ Ð¸Ð»Ð¸ Ð±Ð¸Ð¾Ð»Ð¾Ð³Ð¸Ð¸. ÐÐ½ Ð¸Ð½ÑÐµÑÐµÑÐµÐ½ ÐºÐ°Ðº Ð¼Ð¾Ð´ÐµÐ»ÑÐ½ÑÐ¹ Ð¼Ð°ÑÐµÑÐ¸Ð°Ð», ÑÐ²Ð¾Ð¹ÑÑÐ²Ð° ÐºÐ¾ÑÐ¾ÑÐ¾Ð³Ð¾ ÑÐµÐ»Ð¾Ð²ÐµÐº Ð¿ÑÑÐ°ÐµÑÑÑ Ð²Ð¾ÑÐ¿ÑÐ¾Ð¸Ð·Ð²ÐµÑÑÐ¸.
Ð Ð½Ð°ÑÑÐ¾ÑÑÐµÐµ Ð²ÑÐµÐ¼Ñ Ð±Ð¸Ð¾Ð¼Ð¸Ð¼ÐµÑÐ¸ÐºÐ¸, ÑÐºÐ¾Ð½ÑÑÑÑÐ¸ÑÐ¾Ð²Ð°Ð½Ð½ÑÐµ Ð¿Ð¾ Ð¾Ð±ÑÐ°Ð·ÑÑ ÑÐºÐ°Ð½ÐµÐ¹ Ð¶Ð¸Ð²ÑÑ Ð¾ÑÐ³Ð°Ð½Ð¸Ð·Ð¼Ð¾Ð², ÐµÑÐµ Ð½Ðµ Ð¸Ð¼ÐµÑÑ ÑÐµÑÐ°ÑÑÐ¸Ñ Ð¿ÑÐµÐ¸Ð¼ÑÑÐµÑÑÐ² Ð¿ÐµÑÐµÐ´ Ð´ÑÑÐ³Ð¸Ð¼Ð¸ Ð¸ÑÐºÑÑÑÑÐ²ÐµÐ½Ð½ÑÐ¼Ð¸ Ð¼Ð°ÑÐµÑÐ¸Ð°Ð»Ð°Ð¼Ð¸, ÑÑÑÑÐ¿Ð°Ñ Ð¸Ð¼, Ð½Ð°Ð¿ÑÐ¸Ð¼ÐµÑ, Ð¿Ð¾ Ð¿ÑÐ¾ÑÐ½Ð¾ÑÑÐ¸. ÐÐµÐ¶Ð´Ñ ÑÐµÐ¼ ÑÑÑÑÐºÑÑÑÐ° Ð¼Ð½Ð¾Ð³Ð¸Ñ Ð¿ÑÐ¸ÑÐ¾Ð´Ð½ÑÑ Ð¼Ð°ÑÐµÑÐ¸Ð°Ð»Ð¾Ð² ÑÐ¶Ðµ Ð¸Ð·ÑÑÐµÐ½Ð° Ð´Ð¾ÑÑÐ°ÑÐ¾ÑÐ½Ð¾ ÑÐ¾ÑÐ¾ÑÐ¾. ÐÑÐ¾Ð±Ð»ÐµÐ¼Ð° Ð² ÑÐ¾Ð¼, ÑÑÐ¾ Ð¸ÑÑÐ»ÐµÐ´Ð¾Ð²Ð°Ð½Ð¸Ñ Ð¼ÐµÑÐ°Ð½Ð¸ÑÐµÑÐºÐ¸Ñ ÑÐ²Ð¾Ð¹ÑÑÐ² ÑÐ°ÑÐµ Ð²ÑÐµÐ³Ð¾ ÑÐ¾ÑÑÐµÐ´Ð¾ÑÐ¾ÑÐµÐ½Ñ Ð»Ð¸Ð±Ð¾ Ð½Ð° Ð½Ð°Ð¸Ð¼ÐµÐ½ÑÑÐµÐ¼ (Ð½Ð°Ð½Ð¾-Ð¸Ð½Ð´ÐµÐ½ÑÐ¸ÑÐ¾Ð²Ð°Ð½Ð¸Ðµ), Ð»Ð¸Ð±Ð¾ Ð½Ð° Ð½Ð°Ð¸Ð±Ð¾Ð»ÑÑÐµÐ¼ Ð¼Ð°ÑÑÑÐ°Ð±Ð½Ð¾Ð¼ ÑÑÐ¾Ð²Ð½Ðµ, ÐºÐ¾Ð³Ð´Ð° Ð¸ÑÐ¿ÑÑÐ°Ð½Ð¸ÑÐ¼ Ð¿Ð¾Ð´Ð²ÐµÑÐ³Ð°ÑÑ Ð²ÐµÑÑ Ð¾Ð±ÑÐµÐ¼Ð° Ð¾Ð±ÑÐ°Ð·ÑÐ°. Ð ÐµÑÐµÐ½Ð¸Ñ Ð¿ÑÐ¾Ð±Ð»ÐµÐ¼Ñ ÑÐ¿Ð¾ÑÐ¾Ð±ÑÑÐ²ÑÐµÑ ÑÐ¾Ð¾ÑÐ½ÐµÑÐµÐ½Ð¸Ðµ Ð¼ÐµÑÐ°Ð½Ð¸ÑÐµÑÐºÐ¸Ñ ÑÐ²Ð¾Ð¹ÑÑÐ² Ñ ÐºÐ°Ð¶Ð´ÑÐ¼ Ð¼Ð°ÑÑÑÐ°Ð±Ð½ÑÐ¼ ÑÑÐ¾Ð²Ð½ÐµÐ¼. ÐÑÐ¸ ÑÑÐ¾Ð¼ Ð²Ð¸Ð·ÑÐ°Ð»Ð¸Ð·Ð°ÑÐ¸Ñ ÑÑÑÑÐºÑÑÑÑ Ð´ÐµÐ½ÑÐ¸Ð½Ð° Ð½Ð° ÑÐ°Ð·Ð½ÑÑ ÑÑÐ¾Ð²Ð½ÑÑ Ð¸Ð³ÑÐ°ÐµÑ Ð²Ð°Ð¶Ð½ÑÑ ÑÐ¾Ð»Ñ. ÐÐ´Ð½Ð°ÐºÐ¾ Ð¸Ð·Ð¾Ð±ÑÐ°Ð·Ð¸ÑÑ Ð½ÐµÑÐºÐ¾Ð»ÑÐºÐ¾ Ð¼Ð°ÑÑÑÐ°Ð±Ð½ÑÑ ÑÑÐ¾Ð²Ð½ÐµÐ¹ Ð¼Ð¾Ð¶Ð½Ð¾ ÑÐ¾Ð»ÑÐºÐ¾ Ð¿ÑÑÐµÐ¼ ÑÐ¾ÑÐµÑÐ°Ð½Ð¸Ñ Ð¼ÐµÑÐ¾Ð´Ð¾Ð².
Ð Ð´Ð°Ð½Ð½Ð¾Ð¹ ÑÐ°Ð±Ð¾ÑÐµ Ð¼ÐµÑÐ¾Ð´ Ð¼Ð¸ÐºÑÐ¾ÑÐ¾Ð¼Ð¾Ð³ÑÐ°ÑÐ¸Ð¸ Ð¸ÑÐ¿Ð¾Ð»ÑÐ·Ð¾Ð²Ð°Ð½ ÑÐ¾Ð²Ð¼ÐµÑÑÐ½Ð¾ Ñ Ð¼ÐµÑÐ¾Ð´Ð¾Ð¼ Ð¿ÑÐ¾ÑÐ²ÐµÑÐ¸Ð²Ð°ÑÑÐµÐ¹ ÑÐ»ÐµÐºÑÑÐ¾Ð½Ð½Ð¾Ð¹ Ð¼Ð¸ÐºÑÐ¾ÑÐºÐ¾Ð¿Ð¸Ð¸ (ÐÐ­Ð) Ð´Ð»Ñ Ð½Ð°Ð±Ð»ÑÐ´ÐµÐ½Ð¸Ñ Ð·Ð° ÑÑÑÑÐºÑÑÑÐ¾Ð¹ Ð´ÐµÐ½ÑÐ¸Ð½Ð° Ð½Ð° Ð¼Ð¸ÐºÑÐ¾- Ð¸ Ð½Ð°Ð½Ð¾ÑÑÐ¾Ð²Ð½Ðµ. Ð£ÑÑÐ°Ð½Ð¾Ð²Ð»ÐµÐ½Ð¾, ÑÑÐ¾ ÑÑÐµÑÐ¼ÐµÑÐ½Ð¾Ðµ ÑÐ°ÑÐ¿ÑÐµÐ´ÐµÐ»ÐµÐ½Ð¸Ðµ Ð¼Ð¸ÐºÑÐ¾ÐºÐ°Ð½Ð°Ð»Ð¾Ð² Ð² Ð¾Ð±ÑÐ°Ð·ÑÐ°Ñ ÑÐ°Ð·Ð¼ÐµÑÐ¾Ð¼ Ð½ÐµÑÐºÐ¾Ð»ÑÐºÐ¾ Ð¼Ð¸Ð»Ð»Ð¸Ð¼ÐµÑÑÐ¾Ð² Ð¼Ð¾Ð¶Ð½Ð¾ Ð²Ð¸Ð·ÑÐ°Ð»Ð¸Ð·Ð¸ÑÐ¾Ð²Ð°ÑÑ Ð¼ÐµÑÐ¾Ð´Ð¾Ð¼ Ð¼Ð¸ÐºÑÐ¾ÑÐ¾Ð¼Ð¾Ð³ÑÐ°ÑÐ¸Ð¸ Ð±ÐµÐ· ÑÐ¸Ð¼Ð¸ÑÐµÑÐºÐ¾Ð¹ Ð¾Ð±ÑÐ°Ð±Ð¾ÑÐºÐ¸ Ð¿Ð¾Ð²ÐµÑÑÐ½Ð¾ÑÑÐ¸ Ð¸Ð»Ð¸ ÑÐ¼ÐµÐ½ÑÑÐµÐ½Ð¸Ñ Ð¾Ð±ÑÐµÐ¼Ð° Ð¾Ð±ÑÐ°Ð·ÑÐ°. ÐÐ¸Ð½ÐµÑÐ¸ÐºÑ ÑÐ°Ð·ÑÑÑÐµÐ½Ð¸Ñ Ð¼Ð¾Ð¶Ð½Ð¾ Ð¸Ð·ÑÑÐ°ÑÑ Ð¿ÑÑÐµÐ¼ Ð°Ð½Ð°Ð»Ð¸Ð·Ð° ÑÐ¾Ð¼Ð¾Ð³ÑÐ°Ð¼Ð¼. ÐÐµÑÐ¾Ð´Ð¾Ð¼ ÐÐ­Ð Ð²ÑÑÐ²Ð»ÐµÐ½Ñ Ð¾ÑÐ¾Ð±ÐµÐ½Ð½Ð¾ÑÑÐ¸ ÑÑÑÑÐºÑÑÑÑ Ð¼Ð¸Ð½ÐµÑÐ°Ð»ÑÐ½Ð¾Ð¹ Ð¸ Ð¾ÑÐ³Ð°Ð½Ð¸ÑÐµÑÐºÐ¾Ð¹ Ð¼Ð°ÑÑÐ¸Ñ Ð´ÐµÐ½ÑÐ¸Ð½Ð° Ð¸ Ð¸Ñ Ð²Ð·Ð°Ð¸Ð¼Ð¾Ð´ÐµÐ¹ÑÑÐ²Ð¸Ðµ.
description: The final qualifying paper is devoted to the structure of dentin at micro and nanoscale in relation to its mechanical properties. Dentin has unique mechanical properties due to its complex hierarchical structure. A growing interest in the study of dentin is not limited to the scope of medicine or biology. This is a model material whose properties a man is trying to reproduce.
Nowadays, biomimetics based on the tissues of living organisms have not yet had decisive advantages over other artificial materials which are superior to them in strength properties. At the same time, there are lots of papers published including very detailed descriptions of the structure of biological materials. The problem is that studies of mechanical properties are most often focused either on the smallest (nano-indentation) or on the largest scale, when the entire sample volume is tested. The solution to this problem is in a correlation between mechanical properties and each scale. In this regard, the visualization of dentin structure at different scales plays an important role. However, only a combination of techniques allows making observations of different scales.
In this work, microtomography was used in combination with transmission electron microscopy (TEM) to observe the dentin structure at micro- and nanoscale. It has been found that microtomography reveals a three-dimensional distribution of tubules inside a sample (several millimeters in size) without chemical treatment or reduction of its volume. Fracture kinetics can be studied by analyzing tomograms. TEM shows the structural features of mineral and organic dentin matrices and their interaction.