Izvestiya of Saratov University.

Mathematics. Mechanics. Informatics

ISSN 1816-9791 (Print)
ISSN 2541-9005 (Online)

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Sadyrin E. V., Nikolaev A. L., Zabiyaka I. Y., Volkov S. S. Characterization of properties for modern dental materials and bordering tissues. Part 2. Microgeometrical properties. Izvestiya of Saratov University. Mathematics. Mechanics. Informatics, 2026, vol. 26, iss. 1, pp. 81-90. DOI: 10.18500/1816-9791-2026-26-1-81-90, EDN: ONOUJV

This is an open access article distributed under the terms of Creative Commons Attribution 4.0 International License (CC-BY 4.0).
Published online: 
02.03.2026
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Language: 
English
Heading: 
Mechanics
Article type: 
Article
UDC: 
531.7
DOI: 
10.18500/1816-9791-2026-26-1-81-90
EDN: 
ONOUJV

Characterization of properties for modern dental materials and bordering tissues. Part 2. Microgeometrical properties

Autors: 
Sadyrin Evgeniy V., Don State Technical University
Nikolaev Andrey L., Don State Technical University
Zabiyaka Igor Yu., Don State Technical University
Volkov Sergei S., Don State Technical University
Abstract: 

Today, dental materials face a number of requirements related to the need to withstand to withstand high masticatory loads, while forming, while forming a strong interface with the surrounding biological tissues. The study of the microgeometrical properties of modern materials used to treat caries allows us to draw a conclusion about their efficacy in imitating the tooth tissues and and forming an interface devoid of various microdefects. In the present work, for this purpose, an ex vivo study of the surfaces of composite and glass ionomer cement filling sections, as well as enamel after polymer infiltration and tissues in their vicinity, was carried out using atomic force and scanning electron microscopy. The obtained roughness parameter values for areas after dental treatment were compared with those of  sound tissues; one-way analysis of variance was used to assess statistically significant differences between the mean values of the studied characteristics. The results of the measurements allow us to conclude that the polymer infiltration into the tooth tissue was successful, and in the case of clinical need for filling, the composite material is preferable to glass ionomer cement.

Key words: 
enamel
dentine
composite material
glass ionomer cement
polymer infiltrant
atomic force microscopy
microstructure
roughness
Acknowledgments: 
This work was supported by the Russian Science Foundation (project No. 25-29-00829, https://rscf.ru/en/project/25-29-00829/). The authors thank S. Yu. Maksyukov for assistance in performing ex vivo sealing of the samples. Atomic force and scanning electron microscopy were carried out using the equipment of the Resource Center for Collective Use of the Scientific and Educational Center for Functional Gradient Materials of Don State Technical University (RCCP DSTU).
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Received: 
19.02.2025
Accepted: 
18.06.2025
Published: 
02.03.2026
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