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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">vmireaviz</journal-id><journal-title-group><journal-title xml:lang="ru">Вестник медицинского института «РЕАВИЗ». Реабилитация, Врач и Здоровье</journal-title><trans-title-group xml:lang="en"><trans-title>Bulletin of the Medical Institute "REAVIZ" (REHABILITATION, DOCTOR AND HEALTH)</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">2226-762X</issn><issn pub-type="epub">2782-1579</issn><publisher><publisher-name>РЕАВИЗ</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.20340/vmi-rvz.2025.6.DENT.1</article-id><article-id custom-type="elpub" pub-id-type="custom">vmireaviz-1429</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>ВОПРОСЫ СТОМАТОЛОГИИ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>DENTISTRY</subject></subj-group></article-categories><title-group><article-title>Изучение площади биоэлектрической активности жевательной группы мышц у пациентов с интактными зубными рядами</article-title><trans-title-group xml:lang="en"><trans-title>Study of the area of bioelectric activity of the masseter muscle group in patients with intact dentitions</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Потапов</surname><given-names>В. П.</given-names></name><name name-style="western" xml:lang="en"><surname>Potapov</surname><given-names>V. P.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Потапов Владимир Петрович. Д-р мед. наук, профессор кафедры ортопедической стоматологии</p><p>ул. Чапаевская, д. 89, г. Самара, 443099</p></bio><bio xml:lang="en"><p>Vladimir P. Potapov. Doctor of Medical Sciences, Professor of the Department of Orthopedic Stomato-Logia</p><p>Chapaevskaya St., 89, Samara, 443099</p></bio><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Каменева</surname><given-names>Л. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Kameneva</surname><given-names>L. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Каменева Людмила Алексеевна. Канд. мед. работ, доцент кафедры ортопедической стоматологии</p><p>ул. Чапаевская, д. 89, г. Самара, 443099</p></bio><bio xml:lang="en"><p>Lyudmila A. Kameneva. Kanda region. honey. works, associate professor of the Department of Orthopedic Dentistry</p><p>Chapaevskaya St., 89, Samara, 443099</p></bio><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Юрченко</surname><given-names>И. О.</given-names></name><name name-style="western" xml:lang="en"><surname>Yurchenko</surname><given-names>I. O.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Юрченко Иван Олегович. Ассистент кафедры ортопедической стоматологии</p><p>ул. Чапаевская, д. 89, г. Самара, 443099</p></bio><bio xml:lang="en"><p>Ivan O. Yurchenko. Assistant of the Department of Orthopedic Dentistry</p><p>Chapaevskaya St., 89, Samara, 443099</p></bio><email xlink:type="simple">okolica63@yandex.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Колматаева</surname><given-names>Д. Е.</given-names></name><name name-style="western" xml:lang="en"><surname>Kolmataeva</surname><given-names>D. E.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Колматаева Дина Евгеньевна. Аспирант кафедры ортопедической стоматологии</p><p>ул. Чапаевская, д. 89, г. Самара, 443099</p></bio><bio xml:lang="en"><p>Dina E. Kolmataeva. Graduate student of the Department of Orthopedic Dentistry</p><p>Chapaevskaya St., 89, Samara, 443099</p></bio><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru">Самарский государственный медицинский университет<country>Россия</country></aff><aff xml:lang="en">Samara State Medical University<country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2025</year></pub-date><pub-date pub-type="epub"><day>10</day><month>03</month><year>2026</year></pub-date><volume>15</volume><issue>6</issue><fpage>287</fpage><lpage>294</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Потапов В.П., Каменева Л.А., Юрченко И.О., Колматаева Д.Е., 2026</copyright-statement><copyright-year>2026</copyright-year><copyright-holder xml:lang="ru">Потапов В.П., Каменева Л.А., Юрченко И.О., Колматаева Д.Е.</copyright-holder><copyright-holder xml:lang="en">Potapov V.P., Kameneva L.A., Yurchenko I.O., Kolmataeva D.E.</copyright-holder><license 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://vestnik.reaviz.ru/jour/article/view/1429">https://vestnik.reaviz.ru/jour/article/view/1429</self-uri><abstract><sec><title>Цель исследования</title><p>Цель исследования: определение нормативных показателей площади под кривой биоэлектрической активности собственно жевательных и височных мышц у пациентов с интактными зубными рядами и физиологической окклюзией.</p></sec><sec><title>Материалы и методы</title><p>Материалы и методы. Обследованы 34 пациента (14 мужчин и 20 женщин) в возрасте 18–44 лет с интактными зубными рядами при отсутствии третьих моляров. Электромиографическое исследование проводили на 4-канальном электромиографе «Синапсис» методом поверхностной электромиографии. Регистрировали биоэлектрическую активность собственно жевательных (m. masseter) и височных мышц (m. temporalis) билатерально при выполнении трёх функциональных проб: относительного физиологического покоя (10 секунд), максимального произвольного сжатия челюстей (10 секунд) и произвольного жевания ядра миндального ореха. Анализировали площадь под кривой электромиографического сигнала как интегральный показатель мышечной активности.</p></sec><sec><title>Результаты</title><p>Результаты. В состоянии покоя средние значения площади биоэлектрической активности составили 25,2–27,7 мкВ×мс для всех исследуемых мышц без достоверных различий между ними. При максимальном сжатии зарегистрировано значительное увеличение показателей: для височных мышц – до 318,4–326,8 мкВ×мс, для собственно жевательных мышц – до 533,4–572,1 мкВ×мс с коэффициентом соотношения masseter/temporalis от 1,63 до 1,79. При произвольном жевании площадь активности составила для височных мышц 227,2–227,9 мкВ×мс, для собственно жевательных – 359,9–370,9 мкВ×мс (коэффициент 1,57–1,63). Площадь активности при максимальном сжатии превышала показатели при жевании в среднем в 1,5 раза.</p></sec><sec><title>Заключение</title><p>Заключение. Установлены референсные значения площади биоэлектрической активности жевательных мышц у лиц с интактными зубными рядами. Выявлено закономерное преобладание собственно жевательных мышц над височными при функциональных нагрузках, обусловленное анатомо-физиологическими особенностями и характером окклюзионных контактов. Полученные данные могут служить нормативной базой для диагностики функциональных нарушений жевательного аппарата и контроля эффективности ортопедического лечения. </p></sec></abstract><trans-abstract xml:lang="en"><sec><title>Aim</title><p>Aim. To determine normative values of the area under the curve of bioelectric activity of masseter and temporal muscles in patients with intact dentitions and physiological occlusion.</p></sec><sec><title>Materials and methods</title><p>Materials and methods. Thirty-four patients (14 men and 20 women) aged 18–44 years with intact dentitions in the absence of third molars were examined. Electromyographic study was performed using a 4-channel "Synapsis" electromyograph by surface electromyography method. Bioelectric activity of masseter muscles (m. masseter) and temporal muscles (m. temporalis) was recorded bilaterally during three functional tests: relative physiological rest (10 seconds), maximum voluntary clenching (10 seconds), and arbitrary chewing of an almond kernel. The area under the electromyographic signal curve was analyzed as an integral indicator of muscle activity.</p></sec><sec><title>Results</title><p>Results. At rest, the mean values of bioelectric activity area were 25.2–27.7 μV×ms for all studied muscles without significant differences between them. During maximum clenching, a significant increase was recorded: for temporal muscles up to 318.4–326.8 μV×ms, for masseter muscles up to 533.4–572.1 μV×ms with masseter/temporalis ratio coefficient from 1.63 to 1.79. During arbitrary chewing, the activity area was  227.2–227.9 μV×ms for temporal muscles and 359.9–370.9 μV×ms for masseter muscles (coefficient 1.57–1.63). The activity area during maximum clenching exceeded the indicators during chewing by an average of 1.5 times.</p></sec><sec><title>Conclusion</title><p>Conclusion. Reference values of bioelectric activity area of masticatory muscles in individuals with intact dentitions have been established. A regular predominance of masseter muscles over temporal muscles during functional loads was revealed, due to anatomical and physiological features and the nature of occlusal contacts. The obtained data can serve as a normative basis for diagnosing functional disorders of the masticatory apparatus and monitoring the effectiveness of prosthetic treatment.</p></sec></trans-abstract><kwd-group xml:lang="ru"><kwd>электромиография [D004576]</kwd><kwd>жевательные мышцы [D008410]</kwd><kwd>височная мышца [D013703]</kwd><kwd>биоэлектрическая активность [D055724]</kwd><kwd>площадь под кривой [D019540]</kwd><kwd>интактные зубные ряды [D003815]</kwd><kwd>функциональная диагностика [D003933]</kwd><kwd>ортопедическая стоматология [D011475]</kwd><kwd>окклюзия [D003766]</kwd><kwd>жевательная функция [D008409]</kwd></kwd-group><kwd-group xml:lang="en"><kwd>electromyography [D004576]</kwd><kwd>masticatory muscles [D008410]</kwd><kwd>temporal muscle [D013703]</kwd><kwd>bioelectric activity [D055724]</kwd><kwd>area under curve [D019540]</kwd><kwd>intact dentition [D003815]</kwd><kwd>functional diagnostics [D003933]</kwd><kwd>prosthodontics [D011475]</kwd><kwd>dental occlusion [D003766]</kwd><kwd>mastication [D008409]</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">Булычева Д.С., Постников М.А., Булычева Е.А. 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