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<article 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" xmlns:ali="http://www.niso.org/schemas/ali/1.0/" article-type="research-article" dtd-version="1.2" xml:lang="en"><front><journal-meta><journal-id journal-id-type="publisher-id">Aspirantskiy Vestnik Povolzhiya</journal-id><journal-title-group><journal-title xml:lang="en">Aspirantskiy Vestnik Povolzhiya</journal-title><trans-title-group xml:lang="ru"><trans-title>Аспирантский вестник Поволжья</trans-title></trans-title-group></journal-title-group><issn publication-format="print">2072-2354</issn><issn publication-format="electronic">2410-3764</issn><publisher><publisher-name xml:lang="en">Samara State Medical University</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="publisher-id">691502</article-id><article-id pub-id-type="doi">10.35693/AVP691502</article-id><article-categories><subj-group subj-group-type="toc-heading" xml:lang="en"><subject>DENTISTRY</subject></subj-group><subj-group subj-group-type="toc-heading" xml:lang="ru"><subject>СТОМАТОЛОГИЯ</subject></subj-group><subj-group subj-group-type="article-type"><subject>Research Article</subject></subj-group></article-categories><title-group><article-title xml:lang="en">Evaluation of the accuracy of two intraoral scanners: an <italic>in vitro</italic> investigation</article-title><trans-title-group xml:lang="ru"><trans-title>Сравнение двух внутриротовых сканеров: исследование <italic>in vitro</italic></trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0009-0002-4313-1708</contrib-id><name-alternatives><name xml:lang="en"><surname>Tuneva</surname><given-names>Nataliya O.</given-names></name><name xml:lang="ru"><surname>Тунева</surname><given-names>Наталия Олеговна</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>MD, postgraduate student of the Department of Surgical Dentistry of the Institute of Dentistry</p></bio><bio xml:lang="ru"><p>аспирант кафедры хирургической стоматологии Института стоматологии</p></bio><email>tunaty@list.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-9862-2657</contrib-id><name-alternatives><name xml:lang="en"><surname>Ashurko</surname><given-names>Igor P.</given-names></name><name xml:lang="ru"><surname>Ашурко</surname><given-names>И. П.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>Dr. Sci. (Med.), Associate professor, Associate professor of the Department of Surgical Dentistry of the Institute of Dentistry</p></bio><bio xml:lang="ru"><p>д-р мед. наук, доцент, доцент кафедры хирургической стоматологии Института стоматологии</p></bio><email>tunaty@list.ru</email><xref ref-type="aff" rid="aff1"/></contrib></contrib-group><aff-alternatives id="aff1"><aff><institution xml:lang="en">I.M. Sechenov First Moscow State Medical University</institution></aff><aff><institution xml:lang="ru">ФГАОУ ВО «Первый Московский государственный медицинский университет имени И.М. Сеченова» Минздрава России</institution></aff></aff-alternatives><pub-date date-type="preprint" iso-8601-date="2025-11-23" publication-format="electronic"><day>23</day><month>11</month><year>2025</year></pub-date><pub-date date-type="pub" iso-8601-date="2025-12-09" publication-format="electronic"><day>09</day><month>12</month><year>2025</year></pub-date><volume>25</volume><issue>4</issue><issue-title xml:lang="en"/><issue-title xml:lang="ru"/><fpage>33</fpage><lpage>38</lpage><history><date date-type="received" iso-8601-date="2025-09-26"><day>26</day><month>09</month><year>2025</year></date><date date-type="accepted" iso-8601-date="2025-10-20"><day>20</day><month>10</month><year>2025</year></date></history><permissions><copyright-statement xml:lang="en">Copyright ©; 2025, Tuneva N.O., Ashurko I.P.</copyright-statement><copyright-statement xml:lang="ru">Copyright ©; 2025, Тунева Н.О., Ашурко И.П.</copyright-statement><copyright-year>2025</copyright-year><copyright-holder xml:lang="en">Tuneva N.O., Ashurko I.P.</copyright-holder><copyright-holder xml:lang="ru">Тунева Н.О., Ашурко И.П.</copyright-holder><ali:free_to_read xmlns:ali="http://www.niso.org/schemas/ali/1.0/"/><license><ali:license_ref xmlns:ali="http://www.niso.org/schemas/ali/1.0/">https://creativecommons.org/licenses/by/4.0</ali:license_ref></license></permissions><self-uri xlink:href="https://aspvestnik.ru/2410-3764/article/view/691502">https://aspvestnik.ru/2410-3764/article/view/691502</self-uri><abstract xml:lang="en"><p><bold>Aim</bold> – to compare the accuracy of two intraoral scanners common in modern dentistry when scanning dentition with partial tooth loss <italic>in vitro</italic>; to guide dentists in choosing a scanner for use in clinical practice.</p> <p><bold>Material and methods. </bold>The study compared two scanners: Medit I700 (Medit Corp, Seoul, South Korea) and TRIOS 3 (3Shape A/S, Copenhagen, Denmark). At the outset, 18 analog dental impressions of patients were taken, from which plaster models were cast. The models were scanned with a laboratory scanner (ATOS Blue Light Triple Scan III, 8 megapixels, 100 mm lens, GOM mbh, Braunschweig, Germany) to obtain reference scanning data. Next, 18 dental rows of the same patients were scanned on the compared intraoral scanners. The sets of all scan data were uploaded to software for three-dimensional accuracy assessment (Geomagic Qualify, 2013, Morrisville, NC).</p> <p><bold>Results. </bold>The smallest standard deviation in accuracy measurements between the reference dataset and the various intraoral scanner datasets was obtained using the Medit I700 (0.142 mm). The lowest arithmetic mean of all deviations was found in the TRIOS 3 scanner (0.005 mm). On average, the TRIOS 3 scanner showed more accurate results. However, there were no statistically significant differences between the two Medit I700 and TRIOS 3 scanners (p &lt;0.05).</p> <p><bold>Conclusion.</bold> In this <italic>in vitro</italic> study, both oral scanners demonstrated clinically acceptable results in terms of accuracy.</p></abstract><trans-abstract xml:lang="ru"><p><bold>Цель</bold> – сравнить точность двух распространенных в современной стоматологии внутриротовых сканеров при сканировании зубных рядов с частичной потерей зубов в условиях <italic>in vitro</italic>, чтобы сориентировать врачей-стоматологов в выборе сканера для применения в клинической практике.</p> <p><bold>Материал и методы.</bold> В исследовании сравнили два сканера: Medit I700 (Medit Corp, Сеул, Южная Корея) и TRIOS 3 (3Shape A/S, Копенгаген, Дания). Для начала были сняты аналоговые оттиски пациентов в количестве 18 штук, из которых отлили гипсовые модели. Модели отсканировали лабораторным сканером (ATOS Blue Light Triple Scan III, 8 мегапикселей, объектив 100 мм, GOM mbh, Брауншвейг, Германия) для получения эталонных данных сканирования. Далее были отсканированы 18 зубных рядов тех же пациентов на сравниваемых внутриротовых сканерах. Наборы всех данных сканирования были загружены в программное обеспечение для трехмерной оценки точности (Geomagic Qualify, 2013, Моррисвилл, Северная Каролина).</p> <p><bold>Результаты.</bold> Наименьшее среднеквадратическое отклонение в измерениях точности между эталонным набором данных и различными наборами данных внутриротового сканера было получено с помощью Medit I700 (0,142 мм). Наименьшее среднее арифметическое всех отклонений было обнаружено у сканера TRIOS 3 (0,005 мм). В среднем сканер TRIOS 3 показал более точные результаты. Однако статистически значимых различий между двумя сканерами Medit I700 и TRIOS 3 (p &lt;0,05) выявлено не было.</p> <p><bold>Выводы.</bold> В рамках данного исследования в условиях <italic>in vitro</italic> оба внутриротовых сканера продемонстрировали клинически приемлемые в плане точности результаты.</p></trans-abstract><kwd-group xml:lang="en"><kwd>intraoral scanners</kwd><kwd>intraoral scanning</kwd><kwd>evaluation</kwd><kwd>accuracy</kwd><kwd>in vitro investigation</kwd></kwd-group><kwd-group xml:lang="ru"><kwd>внутриротовые сканеры</kwd><kwd>внутриротовое сканирование</kwd><kwd>сравнение</kwd><kwd>точность</kwd><kwd>исследование in vitro</kwd></kwd-group><funding-group/></article-meta></front><body></body><back><ref-list><ref id="B1"><label>1.</label><mixed-citation>Kihara H, Hatakeyama W, Komine F, et al. Accuracy and practicality of intraoral scanner in dentistry: A literature review. Journal of Prosthodontic Research. 2020;64(2):109-113. 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