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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">10.33667/2078-5631-2024-28-75-81</article-id><article-id custom-type="elpub" pub-id-type="custom">medalphabet-4089</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>Математическое моделирование окклюзионной нагрузки на мостовидный протез с винтовой фиксацией на прямых универсальных конусных и плоских абатментах</article-title><trans-title-group xml:lang="en"><trans-title>Mathematical modeling of occlusion load on a screw-retained bridge prosthesis on straight universal conical and flat abutments</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0009-0002-1403-8117</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Караев</surname><given-names>Р. К.</given-names></name><name name-style="western" xml:lang="en"><surname>Karayev</surname><given-names>R. K.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Рабадан Караевич Караев, аспирант</p><p>кафедра челюстно-лицевой хирургии и хирургической стоматологии</p><p>Москва</p></bio><bio xml:lang="en"><p>Rabadan Karaevich Karayev, post-graduate student</p><p>Department of Maxillofacial Surgery and Surgical Dentistry</p><p>Moscow</p></bio><email xlink:type="simple">dr.karaev@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/0000-0001-7160-2023</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Гусейнов</surname><given-names>Н. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Guseynov</surname><given-names>N. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Ниджат Айдын оглы Гусейнов, к. м. н.; врач-стоматолог</p><p>Москва</p></bio><bio xml:lang="en"><p>Nidjat Aydin ogli Guseynov, phd; dentist</p><p>Moscow</p></bio><email xlink:type="simple">nid.gus@mail.ru</email><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-6862-216X</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Саперова</surname><given-names>Н. Р.</given-names></name><name name-style="western" xml:lang="en"><surname>Saperova</surname><given-names>N. R.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Надежда Руслановна Саперова, к. м. н., доцент</p><p>кафедра общей и хирургической стоматологии</p><p>Москва</p><p>AuthorID: 742236</p></bio><bio xml:lang="en"><p>Nadezhda Ruslanovna Saperova, Candidate of Medical Sciences, Associate Professor</p><p>Department of General and Surgical Dentistry</p><p>Moscow</p><p>AuthorID: 742236</p></bio><email xlink:type="simple">saperova.n@mail.ru</email><xref ref-type="aff" rid="aff-3"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-6164-4577</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Белова</surname><given-names>Н. М.</given-names></name><name name-style="western" xml:lang="en"><surname>Belova</surname><given-names>N. M.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Надежда Михайловна Белова, к. м. н., доцент</p><p>кафедра общей и хирургической стоматологии</p><p>Москва</p><p>AuthorID: 746933</p></bio><bio xml:lang="en"><p>Nadezda Mikhailovna Belova, Ph.D. of Medical Sciences, Associate Professor</p><p>Department of General and Surgical Dentistry</p><p>Moscow</p><p>AuthorID: 746933</p></bio><email xlink:type="simple">belovanadezda-m@mail.ru</email><xref ref-type="aff" rid="aff-3"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>ФГАОУ ВО «Российский университет дружбы народов»</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Federal State Autonomous Educational Institution of Higher Professional Education «Peoples’ Friendship University of Russia»</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>ООО «Центр Современной стоматологии»</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Center of Modern Dentistry LLC</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-3"><aff xml:lang="ru"><institution>ФГБОУ ДПО Российская медицинская академия непрерывного профессионального образования Министерства Здравоохранения России</institution><country>Россия</country></aff><aff xml:lang="en"><institution>GBOU DPO Russian Medical Academy of Continuing Professional Education of the Ministry of Health of Russia</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2024</year></pub-date><pub-date pub-type="epub"><day>12</day><month>01</month><year>2025</year></pub-date><volume>0</volume><issue>28</issue><issue-title>Стоматология (4)</issue-title><fpage>75</fpage><lpage>81</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Караев Р.К., Гусейнов Н.А., Саперова Н.Р., Белова Н.М., 2025</copyright-statement><copyright-year>2025</copyright-year><copyright-holder xml:lang="ru">Караев Р.К., Гусейнов Н.А., Саперова Н.Р., Белова Н.М.</copyright-holder><copyright-holder xml:lang="en">Karayev R.K., Guseynov N.A., Saperova N.R., Belova N.M.</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/4089">https://www.med-alphabet.com/jour/article/view/4089</self-uri><abstract><p>   В настоящем математическом эксперименте проведено сравнительное исследование микродеформаций и эквивалентных напряжений по Мизесу, возникающих в элементах двух ортопедических мостовидных конструкциях с различной формой абатментов методом конечных элементов. Также проведено сравнение пределов прочности обеих конструкций. Исследуемые конструкции имели одинаковую внешнюю геометрию и соответствовали двум премолярам и первому моляру. Отличие исследуемых моделей было в супраструктурах, которые вставляются и фиксируются в имплантатах и являются опорой для искусственных коронок. В первой модели использовали плоскостные супраструктуры (или flat-абатменты), во второй модели – конусные супраструктуры (или универсальные мультиюниты). Полученные данные свидетельствуют о клинической значимости выбора оптимальной формы абатмента при планировании хирургического вмешательства и прогнозировании последующих результатах лечения пациентов.</p></abstract><trans-abstract xml:lang="en"><p>   In this mathematical experiment, a comparative study of microdeformations and von Mises equivalent stresses arising in the elements of two orthopedic bridge structures with different abutment shapes was conducted using the finite element method. The strength limits of both structures were also compared. The structures under study had the same external geometry and corresponded to two premolars and the first molar. The difference between the models under study was in the superstructures that are inserted and fixed in the implants and serve as a support for artificial crowns. The first model used flat superstructures (or flat abutments), while the second model used conical superstructures (or universal multi-units). The data obtained indicate the clinical significance of choosing the optimal abutment shape when planning surgical interventions and predicting subsequent patient treatment results.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>дентальные имплантаты</kwd><kwd>конусные абатменты</kwd><kwd>плоские абатменты</kwd><kwd>математическое моделирование</kwd><kwd>прочностные характеристики</kwd><kwd>микродеформации</kwd><kwd>эквивалентные напряжения по Мизесу</kwd><kwd>метод конечных элементов</kwd></kwd-group><kwd-group xml:lang="en"><kwd>dental implants</kwd><kwd>conical abutments</kwd><kwd>flat abutments</kwd><kwd>mathematical modeling</kwd><kwd>strength characteristics</kwd><kwd>microdeformations</kwd><kwd>von Mises equivalent stresses</kwd><kwd>finite element method</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">Jin HW, Noumbissi S, Wiedemann TG. 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