Applied Information Aspects of Medicine (Prikladnye informacionnye aspekty mediciny)Applied Information Aspects of Medicine (Prikladnye informacionnye aspekty mediciny)2070-9277Voronezh State Medical University named after N.N. Burdenko - The State Budgetary Institution of Higher Professional Education «Voronezh State Medical University named after N.N. Burdenko» of the Ministry of Public Health of the Russian785810.18499/2070-9277-2022-25-2-20-23Original ArticleSTUDY OF POLYMERIZATION SHRINKAGE OF COMPOSITE MATERIALSBayazovaO. A.-VusatayaE. V.-OleinikO. I.-SushchenkoA. V.-KrasnikovaO. P.-Voronezh State Medical University named after N. N. Burdenko15122022252202328092022Copyright © 2022, Applied Information Aspects of Medicine (Prikladnye informacionnye aspekty mediciny)2022A wide range of restoration materials dictate researchers to study the properties of composites, the most important indicator is polymerization shrinkage, on which the properties of the composite and the success of the long-term restoration service depend. The article is devoted to the study of the shrinkage of modern composite materials, which was studied during the experiment. The experiment demonstrated the relationship between the fullness of the composite and polymerization shrinkage. The lowest polymerization shrinkage was shown by the composite material SDR (Dentsply).composite materialsfullness of the compositepolymerization shrinkageкомпозиционные материалынаполненность композитаполимеризационная усадка[Национальный стандарт Российской Федерации Композиты полимерные. Препреги и Премиксы. ГОСТ Р 57785-2017(EN 1842:1997) @@Nacionalnyy standart rossiyskoy federacii kompozity polimernye-prepregi-i-premiksy gost r 57785-2017(en-1842:1997)][Nakano, E. L., de Souza, A., Boaro, L., Catalani, L. H., Braga, R. R., &Gonçalves, F. (2020). Polymerization Stress and Gap Formation of Self-adhesive, Bulk-fill and Flowable Composite Resins. Operativedentistry, 45(6), E308-E316. https://doi.org/10.2341/19-166-L][Erhardt, M., Goulart, M., Jacques, R. C., Rodrigues, J. A., & Pfeifer, C. S. (2020). Effect of different composite modulation protocols on the conversion and polymerization stress profile of bulk-filled resin restorations. Dental materials : official publication of the Academy of Dental Materials, 36(7), 829-837. https://doi.org/10.1016/j.dental.2020.03.019][Rizzante, F., Mondelli, R., Furuse, A. Y., Borges, A., Mendonça, G., &Ishikiriama, S. K. (2019). Shrinkage stress and elastic modulus assessment of bulk-fill composites. Journal of applied oral science :revista FOB, 27, e20180132. https://doi.org/10.1590/1678-7757-2018-0132]