from 01.01.2006 until now
Blagoveshchensk, Blagoveshchensk, Russian Federation
graduate student from 01.01.2025 until now
VAK Russia 4.1.1
VAK Russia 4.1.2
VAK Russia 4.1.3
VAK Russia 4.1.4
VAK Russia 4.1.5
VAK Russia 4.2.2
VAK Russia 4.2.3
VAK Russia 4.2.4
VAK Russia 4.2.5
VAK Russia 4.3.3
VAK Russia 4.3.5
UDC 636.028
UDC 619
UDC 616.31
CSCSTI 68.41
Russian Classification of Professions by Education 36.06.01
Russian Library and Bibliographic Classification 48
Russian Trade and Bibliographic Classification 5623
The aim of the study is to investigate the effect of ultraviolet radiation with a wavelength of (255 ± 5) nm on the dentin structure of the root canal of rat teeth. Objectives: to identify the level of treatment of the orifice third of the root canal using an electron scan of the tooth cross-section, the morphological structure of its walls and the degree of obturation of the dentinal tubules with detritus; to identify the level of treatment of the middle third of the root canal using an electron scan of the tooth cross-section, the morphological structure of its walls and the degree of obturation of the dentinal tubules with detritus; to assess the level of treatment of the apical third of the tooth root using an electron scan of the tooth cross-section, the morphological structure of its walls and the degree of obturation of the dentinal tubules with detritus. During the experimental study, the effect of ultraviolet radiation ((255 ± 5) nm) on the dentin structure of the root canals in laboratory rats was analyzed. The morphological evaluation included an analysis of the histoarchitecture of root dentin, detection of organic inclusions within the canal lumen, qualitative treatment characteristics, and wall surface topography. The study was conducted on 45 mature CD individuals, divided into three equal groups, using first lower molars (two teeth from each individual). Comparative electron microscopic analysis of root sections revealed superior cleaning efficiency of the root canal system when using additional physical factors – a diode laser (980 nm) and ultraviolet radiation (255 ± 5 nm) – in both the lumen and parietal aspects. These techniques ensure optimal removal of the smear layer while maintaining the structural integrity of the root dentin.
veterinary dentistry, rat tooth root system, rats, ultraviolet radiation, endodontics, rat dentofacial system
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8. Ruvinskaya GR, Ushakova MA. Modern Principles of Endodontic Treatment: Educational and Methodological Manual. Kazan; 2021. 42 p. (In Russ.).
9. Lutskaya IK. Preparation of root canals as a stage of tooth restoration. Sovremennaya stomatologiya. 2022;4. (In Russ.).
10. Yudina NA, Pivankova NN. Chemical and physical methods of disinfection in modern endodontic treatment. Sovremennaya stomatologiya. 2022;3. (In Russ.).
11. Sarkisyan NG, Paskhina AI, Shageev GYu, et al. Application of ultraviolet radiation in medical practice. Klinicheskaya medicina. 2022;6. (In Russ.).
12. Gurova SV, Mindar MV, Khodakova DV. Modern aspects in the field of anesthesia of small laboratory animals. Yuzhno-rossijskij onkologicheskij zhurnal. 2022;3. (In Russ.).
13. Danikov VV, Grishina YuA, Zakharov MA. Modern methods of endodontic treatment of root canals of teeth. Mezhdunarodnyj nauchno-issledovatel'skij zhurnal. 2024;4. (In Russ.).
14. Butvilovsky AV, Terekhova TN, Pyko TA. Medicamentous treatment of the root canal system of teeth: tasks, general rules, basic irrigants. Sovremennaya stomatology. 2022;3. (In Russ.).
15. Sarkisyan NG, Kataeva NN, Khokhryakova DA. Drug treatment of root canals in endodontics: problems of using modern means. Med.-Biol. Vestn. Acad. I.P. Pavlova. 2025;1. (In Russ.).
16. Bóveda C, Kishen A. The Role of Modern Technologies for Dentin Preservation in Root Canal Treatment. Minimally Invasive Approaches in Endodontic Practice. 2020:1-32.
17. AVMA. AVMA Guidelines for the Euthanasia of Animals: 2020 Edition.
18. Rybakova AV, Makarova MN. Methods of euthanasia of laboratory animals in accordance with European Directive 2010/63. International Veterinary Bulletin. 2015;2:96-107. EDN: https://elibrary.ru/ULGMCX.
19. Demakov VI, Larionova EY, Golodkov YuE, et al. Comparative review of statistical packages for data analysis. Bulletin of BSU. Mathematics, informatics. 2023;3.
20. Kryshen KL, Gushchin YaA, Faustova NM, et al. Interpretaciya dannyh toksikologicheskih issledovanij lekarstvennyh sredstv pri opredelenii dozy, ne vyzyvayuschej vidimyh nezhelatel'nyh `effektov (NOAEL). Regulatory research and expertise of medicines. 2025;15(3):262-277. (In Russ.). DOI:https://doi.org/10.30895/1991-2919-2025-15-3-262-277.
21. Karelina NR, Artyukh LY. Histological structure of tooth tissues (lecture). FORCIPE. 2022;1. (In Russ.).
