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<article article-type="research-article" dtd-version="1.3" xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xml:lang="ru"><front><journal-meta><journal-id journal-id-type="publisher-id">medalphabet</journal-id><journal-title-group><journal-title xml:lang="ru">Медицинский алфавит</journal-title><trans-title-group xml:lang="en"><trans-title>Medical alphabet</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">2078-5631</issn><issn pub-type="epub">2949-2807</issn><publisher><publisher-name>ООО «Альфмед»</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.33667/2078-5631-2025-30-177-180</article-id><article-id custom-type="elpub" pub-id-type="custom">medalphabet-4815</article-id><article-categories><subj-group subj-group-type="heading"><subject>Research Article</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="ru"><subject>Статьи</subject></subj-group></article-categories><title-group><article-title>Исследование методом акустической микроскопии упругих свойств керамических материалов после стандартного и скоростного обжига</article-title><trans-title-group xml:lang="en"><trans-title>Investigation of the elastic properties of ceramic materials after standard and speed firing using acoustic microscopy</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0009-0001-9502-2397</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Гук</surname><given-names>Н. О.</given-names></name><name name-style="western" xml:lang="en"><surname>Guk</surname><given-names>N. O.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Гук Никита Октавианович – аспирант кафедры ортопедической стоматологии</p><p>Москва</p></bio><bio xml:lang="en"><p>Guk Nikita Octavianovich – postgraduate student of the Department of Orthopedic Dentistry</p><p>Moscow</p></bio><email xlink:type="simple">dr.guknikita@yandex.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-0437-1290</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Савельев</surname><given-names>В. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Saveliev</surname><given-names>V. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Савельев Василий Владимирович – к.м.н. кафедры ортопедической стоматологии </p><p>Москва</p></bio><bio xml:lang="en"><p>Lebedenko Igor Yulievich – MD, Professor, Head of the Department of Orthopedic Dentistry </p><p>Moscow</p></bio><email xlink:type="simple">bazilsav@gmail.com</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-4050-484X</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Лебеденко</surname><given-names>И. Ю.</given-names></name><name name-style="western" xml:lang="en"><surname>Lebedenko</surname><given-names>I. Y.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Лебеденко Игорь Юльевич – д.м.н., профессор, заведующий кафедрой ортопедической  стоматологии</p><p>Москва</p></bio><bio xml:lang="en"><p>Saveliev Vasily Vladimirovich – Candidate of Medical Sciences of the Department of Orthopedic Dentistry</p><p>Moscow</p></bio><email xlink:type="simple">lebedenkoi@mail.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-4048-4057</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Ретинская</surname><given-names>М. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Retinskaya</surname><given-names>M. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Ретинская Марина Владимировна – к.м.н., доцент кафедры ортопедической стоматологии</p><p>Москва</p></bio><bio xml:lang="en"><p>Marina Vladimirovna – Candidate of Medical Sciences, Associate Professor of the Department of Orthopedic Dentistry</p><p>Moscow</p></bio><email xlink:type="simple">mvretinskaya@mail.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>ФГАОУ ВО «Российский университет дружбы народов им. Патриса Лумумбы»</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Peoples’ Friendship University of Russia named after Patrice Lumumba</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2025</year></pub-date><pub-date pub-type="epub"><day>03</day><month>01</month><year>2026</year></pub-date><volume>0</volume><issue>30</issue><issue-title>Стоматология (4)</issue-title><fpage>177</fpage><lpage>180</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Гук Н.О., Савельев В.В., Лебеденко И.Ю., Ретинская М.В., 2026</copyright-statement><copyright-year>2026</copyright-year><copyright-holder xml:lang="ru">Гук Н.О., Савельев В.В., Лебеденко И.Ю., Ретинская М.В.</copyright-holder><copyright-holder xml:lang="en">Guk N.O., Saveliev V.V., Lebedenko I.Y., Retinskaya M.V.</copyright-holder><license xml:lang="ru" license-type="creative-commons-attribution" xlink:href="https://creativecommons.org/licenses/by/4.0/" xlink:type="simple"><license-p>Данная работа распространяется под лицензией Creative Commons Attribution 4.0.</license-p></license><license xml:lang="en" license-type="creative-commons-attribution" xlink:href="https://creativecommons.org/licenses/by/4.0/" xlink:type="simple"><license-p>This work is licensed under a Creative Commons Attribution 4.0 License.</license-p></license></permissions><self-uri xlink:href="https://www.med-alphabet.com/jour/article/view/4815">https://www.med-alphabet.com/jour/article/view/4815</self-uri><abstract><sec><title>Введение</title><p>Введение. Современные стоматологические материалы, такие как многослойный диоксид циркония (YSZ), дисиликат лития (IPS e.max), а также усовершенствованный дисиликат лития (CEREC Tessera), должны сочетать высокую прочность и эстетику. Для их всесторонней оценки традиционных разрушающих механических испытаний недостаточно. Более перспективным является неразрушающий контроль методом импульсной акустической микроскопии. Этот метод позволяет детально исследовать упругие свойства и микроструктуру керамики, в том числе после различных режимов спекания. </p></sec><sec><title>Материалы и методы</title><p>Материалы и методы. Образцы в виде прямоугольных призм (14×4×2 мм) были изготовлены методом CAD/CAM-фрезерования. Многослойные диоксид-циркониевые заготовки ориентировали в диске для варьирования содержания оксида иттрия. После фрезерования их спекали в стандартном и скоростном режимах. Образцы из силикатной керамики обрабатывались только скоростным обжигом. Дополнительная обработка после спекания не проводилась. Оценка упругих характеристик выполнена на импульсном акустическом микроскопе SIAM 2017. По данным А-сканов измерялись скорости продольных и поперечных звуковых волн. На основе этих скоростей и плотности материала были рассчитаны модули упругости: сдвиговый (G), всестороннего сжатия (K), Юнга (E) и коэффициент Пуассона (µ). </p></sec><sec><title>Результаты и выводы</title><p>Результаты и выводы. Установлены характерные значения упругих констант для двух классов материалов: коэффициент Пуассона диоксида циркония (~0,33) статистически значимо выше, чем у стеклокерамики на основе дисиликата лития (0,24–0,25). Режим обжига оказывает систематическое влияние на структуру материала: скоростной обжиг приводит к снижению плотности (что связано с остаточной пористостью) и незначительному, но фиксируемому снижению модуля упругости. Полученные данные о различии упругих свойств материалов должны учитываться при клиническом выборе керамики и проектировании конструкций, особенно в зонах повышенной функциональной нагрузки, для обеспечения долговечности протезов.</p></sec></abstract><trans-abstract xml:lang="en"><sec><title>Introduction</title><p>Introduction. Modern dental materials, such as multilayer zirconium dioxide (YSZ), lithium disilicate (IPS e.max), and advanced lithium disilicate (CEREC Tessera), must combine high strength and aesthetics. Traditional destructive mechanical tests are not sufficient for their comprehensive evaluation. Non-destructive testing using pulse acoustic microscopy is more promising. This method allows for detailed investigation of the elastic properties and microstructure of ceramics, including after various sintering modes. </p></sec><sec><title>Materials and methods</title><p>Materials and methods. Samples in the form of rectangular prisms (14×4×2 mm) were manufactured using CAD/CAM milling. Multilayer zirconium dioxide blanks were oriented in a disc to vary the yttrium oxide content. After milling, they were sintered in standard and high-speed modes. Silicate ceramic samples were treated only by high-speed firing. No additional processing was performed after sintering. The elastic characteristics were evaluated using a SIAM 2017 pulsed acoustic microscope. The velocities of longitudinal and transverse sound waves were measured using A-scans. Based on these velocities and the density of the material, the elastic moduli were calculated: shear (G), bulk compression (K), Young’s (E) and Poisson’s ratio (µ). </p></sec><sec><title>Results and conclusions</title><p>Results and conclusions. Characteristic values of elastic constants were established for two classes of materials: the Poisson’s ratio of zirconium dioxide (~0.33) is statistically significantly higher than that of lithium disilicate-based glass-ceramics (0.24–0.25). The firing mode has a systematic effect on the structure of the material: speed firing leads to a decrease in density (which is associated with residual porosity) and a slight but measurable decrease in the elastic modulus. The data obtained on the differences in the elastic properties of materials should be taken into account when selecting ceramics for clinical use and designing structures, especially in areas of increased functional load, to ensure the durability of prostheses.</p></sec></trans-abstract><kwd-group xml:lang="ru"><kwd>многослойный диоксид циркония</kwd><kwd>дисиликат лития с виргилитом</kwd><kwd>акустическая микроскопия</kwd><kwd>упругие свойства</kwd><kwd>скоростной обжиг</kwd></kwd-group><kwd-group xml:lang="en"><kwd>multilayer zirconium dioxide</kwd><kwd>lithium disilicate with virgilite</kwd><kwd>acoustic microscopy</kwd><kwd>elastic properties</kwd><kwd>speed firing</kwd></kwd-group></article-meta></front><back><ref-list><title>References</title><ref id="cit1"><label>1</label><citation-alternatives><mixed-citation xml:lang="ru">Inokoshi M., Liu, H., Yoshihara K., Yamamoto M., Tonprasong W., Benino Y., Minakuchi S., Vleugels J., Van Meerbeek B., &amp; Zhang, F. (2023). 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