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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">Russian Journal of Dentistry</journal-id><journal-title-group><journal-title xml:lang="en">Russian Journal of Dentistry</journal-title><trans-title-group xml:lang="ru"><trans-title>Российский стоматологический журнал</trans-title></trans-title-group></journal-title-group><issn publication-format="print">1728-2802</issn><issn publication-format="electronic">2413-2934</issn><publisher><publisher-name xml:lang="en">Eco-Vector</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="publisher-id">677567</article-id><article-id pub-id-type="doi">10.17816/dent677567</article-id><article-id pub-id-type="edn">CSLKHF</article-id><article-categories><subj-group subj-group-type="toc-heading" xml:lang="en"><subject>Case reports</subject></subj-group><subj-group subj-group-type="toc-heading" xml:lang="ru"><subject>Клинические случаи</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">Use of a 1.94-µm Fiber Laser in the Surgical Management of Patients with Oral Epithelial Dysplasia</article-title><trans-title-group xml:lang="ru"><trans-title>Применение волоконного лазера с длиной волны 1,94 мкм в хирургическом лечении пациентов с эпителиальными дисплазиями слизистой оболочки рта</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-8595-8864</contrib-id><contrib-id contrib-id-type="spin">3320-0052</contrib-id><name-alternatives><name xml:lang="en"><surname>Tarasenko</surname><given-names>Svetlana V.</given-names></name><name xml:lang="ru"><surname>Тарасенко</surname><given-names>Светлана Викторовна</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>MD, Dr. Sci. (Medicine), Professor</p></bio><bio xml:lang="ru"><p>д-р мед. наук, профессор</p></bio><email>prof_tarasenko@rambler.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-1872-9487</contrib-id><contrib-id contrib-id-type="spin">6524-5665</contrib-id><name-alternatives><name xml:lang="en"><surname>Stepanov</surname><given-names>Mikhail A.</given-names></name><name xml:lang="ru"><surname>Степанов</surname><given-names>Михаил Александрович</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>MD, Cand. Sci. (Medicine), Associate Professor</p></bio><bio xml:lang="ru"><p>канд. мед. наук, доцент</p></bio><email>doctor.stepanov@gmail.com</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-0281-7842</contrib-id><contrib-id contrib-id-type="spin">1916-7574</contrib-id><name-alternatives><name xml:lang="en"><surname>Khisamieva</surname><given-names>Guzel M.</given-names></name><name xml:lang="ru"><surname>Хисамиева</surname><given-names>Гузель Марселевна</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>ggguzelkh@gmail.com</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-2071-4487</contrib-id><contrib-id contrib-id-type="spin">7269-9300</contrib-id><name-alternatives><name xml:lang="en"><surname>Skachkova</surname><given-names>Marina M.</given-names></name><name xml:lang="ru"><surname>Скачкова</surname><given-names>Марина Михайловна</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>marina.petukhova2014@ya.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0009-0009-9940-5254</contrib-id><name-alternatives><name xml:lang="en"><surname>Sivodedova</surname><given-names>Anastasia M.</given-names></name><name xml:lang="ru"><surname>Сиводедова</surname><given-names>Анастасия Михайловна</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>sivodedovaan@yandex.ru</email><xref ref-type="aff" rid="aff1"/></contrib></contrib-group><aff-alternatives id="aff1"><aff><institution xml:lang="en">First Sechenov Moscow State Medical University</institution></aff><aff><institution xml:lang="ru">Первый Московский государственный медицинский университет имени И.М. Сеченова</institution></aff></aff-alternatives><pub-date date-type="preprint" iso-8601-date="2025-05-06" publication-format="electronic"><day>06</day><month>05</month><year>2025</year></pub-date><pub-date date-type="pub" iso-8601-date="2025-06-27" publication-format="electronic"><day>27</day><month>06</month><year>2025</year></pub-date><volume>29</volume><issue>3</issue><issue-title xml:lang="en"/><issue-title xml:lang="ru"/><fpage>282</fpage><lpage>289</lpage><history><date date-type="received" iso-8601-date="2025-03-23"><day>23</day><month>03</month><year>2025</year></date><date date-type="accepted" iso-8601-date="2025-04-08"><day>08</day><month>04</month><year>2025</year></date></history><permissions><copyright-statement xml:lang="en">Copyright ©; 2025, Eco-Vector</copyright-statement><copyright-statement xml:lang="ru">Copyright ©; 2025, Эко-Вектор</copyright-statement><copyright-year>2025</copyright-year><copyright-holder xml:lang="en">Eco-Vector</copyright-holder><copyright-holder xml:lang="ru">Эко-Вектор</copyright-holder><ali:free_to_read xmlns:ali="http://www.niso.org/schemas/ali/1.0/" start_date="2028-06-27"/></permissions><self-uri xlink:href="https://rjdentistry.com/1728-2802/article/view/677567">https://rjdentistry.com/1728-2802/article/view/677567</self-uri><abstract xml:lang="en"><p><bold>BACKGROUND:</bold> The choice of optimal surgical technique for treating potentially malignant oral mucosal disorders with the signs of epithelial dysplasia remains a subject of ongoing debate. This is associated with the absence of a widely adopted method in dental practice that guarantees the most successful outcome. Laser technologies offer improved precision and enhanced therapeutic efficacy for these patients. However, there is a notable lack of studies — both Russian and international — specifically evaluating the use of fiber lasers in managing dysplastic epithelial lesions of the oral mucosa.</p> <p><bold>CASE DESCRIPTION:</bold> This case report presents the surgical excision of oral epithelial dysplasia using a fiber laser, aiming to enhance treatment effectiveness. A 1.94-µm fiber laser was applied in the treatment of verrucous leukoplakia with signs of epithelial dysplasia, which has a malignant transformation rate of up to 65.8%. As a result of the fiber laser treatment, a favorable postoperative period was observed, with no esthetic, functional, or phonetic impairments noted in the long term.</p> <p><bold>CONCLUSION:</bold> A 1.94-µm fiber laser offers high efficacy in the surgical treatment of patients with potentially malignant oral mucosal disorders presenting with epithelial dysplasia.</p></abstract><trans-abstract xml:lang="ru"><p><bold>Обоснование.</bold> Проблема выбора методики хирургического лечения пациентов с потенциально злокачественными заболеваниями слизистой оболочки рта с признаками эпителиальной дисплазии на данный момент остаётся открытой темой для дискуссий. Это связано с отсутствием широко внедрённого в стоматологическую практику способа, гарантирующего наиболее успешный результат. Лазерные технологии позволяют повысить качество и эффективность оказания стоматологической помощи таким пациентам. Анализ данных отечественной и международной литературы демонстрирует недостаток исследований, рассматривающих эффективность применения волоконных лазеров при лечении диспластических поражений эпителия слизистой оболочки рта.</p> <p><bold>Описание клинического случая.</bold> Продемонстрировано хирургическое иссечение эпителиальной дисплазии слизистой оболочки рта при помощи волоконного лазера с целью повышения эффективности лечения пациентов с данной патологией. В работе применяли волоконный лазер с длиной волны 1,94 мкм для лечения веррукозной лейкоплакии с признаками эпителиальной дисплазии, частота озлокачествления которой достигает 65,8%. В результате воздействия волоконного лазера отмечено благоприятное течение послеоперационного периода, отсутствие эстетических, функциональных и фонетических нарушений в отдалённые сроки.</p> <p><bold>Заключение. </bold>Применение волоконного лазера с длиной волны 1,94 мкм позволяет достичь высокой эффективности хирургического лечения пациентов с потенциально злокачественным заболеванием слизистой оболочки рта с признаками эпителиальной дисплазии.</p></trans-abstract><kwd-group xml:lang="en"><kwd>oral epithelial dysplasia</kwd><kwd>fiber laser</kwd><kwd>verrucous leukoplakia</kwd><kwd>case report</kwd></kwd-group><kwd-group xml:lang="ru"><kwd>эпителиальная дисплазия слизистой оболочки рта</kwd><kwd>волоконный лазер</kwd><kwd>веррукозная лейкоплакия</kwd><kwd>клинический случай</kwd></kwd-group><funding-group/></article-meta></front><body></body><back><ref-list><ref id="B1"><label>1.</label><mixed-citation>Mello FW, Miguel AFP, Dutra KL, et al. 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