Received 09.05.2022
DOI: 10.35556/idr-2022-3(100)20-26
Application of the stretching method for the study of new dental composites
Majorov E.E., Department of Applied Mathematics, Ph. D., Federal State Autonomous Educational Institution of Higher Education «Saint-Petersburg state university of aerospace instrumentation» MS and Higher Education Russia, Saint Petersburg
Russia, 190000, Saint-Petersburg, Bol. Morskaya St., 67A
Shalamay L.I., Federal State Budgetary Educational Institution of Higher Education “Academician I.P. Pavlov First St.Petersburg State Medical University” of the Ministry of Healthcare of the Russian Federation, Saint Petersburg
Russia, 197022, Saint Petersburg, L’va Tolstogo St., 6-8.
Mendosa E.Yu., Federal State Budgetary Educational Institution of Higher Education “A.I. Yevdokimov Moscow State University of Medicine and Dentistry” of the Ministry of Healthcare of the Russian Federation, Moscow
Russia, 127473, Moscow, Delegatskaya St., 20, bld. 1.
Lampusova V.B., Federal State Budgetary Educational Institution of Higher Education “Academician I.P. Pavlov First St.Petersburg State Medical University” of the Ministry of Healthcare of the Russian Federation, Saint Petersburg
Russia, 197022, Saint Petersburg, L’va Tolstogo St., 6-8.
Oksas N.S., assistant of the Department of dentistry, therapeutic and Periodontology, Federal State Budgetary Educational Institution of Higher Education “Academician I.P. Pavlov First St.Petersburg State Medical University” of the Ministry of Healthcare of the Russian Federation, Saint Petersburg
Russia, 197022, Saint Petersburg, L’va Tolstogo St., 6-8.

E-mail address: majorov_ee@mail.ru

Summary
The paper considers a physical research method for obtaining the parameters of the tensile strength of dental composite materials with different cross-sectional areas of samples. Obtaining tensile strength data will complement the existing characteristics of composites, so the work is relevant and promising for therapeutic dentistry. Five newest dental composites are investigated and described in the work. The functional diagram and appearance of the IM-4P breaking machine are presented. The work of IM-4P is described, as well as the installation of the sample before the test and its appearance after the rupture is shown. The results of the experiment were summarized in a table. The results of measurements demonstrating the dependence of mechanical stress (strength) on the cross-sectional area in dental composites are represented by polynomials of the third degree, the value of approximation reliability is determined, a sample with the best mechanical properties is identified.

Keywords: mechanical stress, tensile strength, cross-sectional area, tensile method, composite material, therapeutic dentistry, polynomial.

For citation: Majorov E.E., Shalamay L.I., Mendosa E.Yu., Lampusova V.B., Oksas N.S. Application of the stretching method for the study of new dental composites. Stomatology for All / Int. Dental Review. 2022, no.3(100): 20-26 (In Russian). doi: 10.35556/idr-2022-3(100)20-26

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