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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 Medicine</journal-id><journal-title-group><journal-title xml:lang="en">Russian Medicine</journal-title><trans-title-group xml:lang="ru"><trans-title>Российский медицинский журнал</trans-title></trans-title-group></journal-title-group><issn publication-format="print">0869-2106</issn><issn publication-format="electronic">2412-9100</issn><publisher><publisher-name xml:lang="en">Eco-Vector</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="publisher-id">701992</article-id><article-id pub-id-type="doi">10.17816/medjrf701992</article-id><article-id pub-id-type="edn">QLGVVO</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>Клинический случай</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">Reconstruction of a bone defect in horizontal atrophy of the mandible using a periosteal flap and guided bone regeneration technique: case report</article-title><trans-title-group xml:lang="ru"><trans-title>Восстановление костного дефекта при горизонтальной атрофии нижней челюсти с использованием периостального лоскута и техники направленной костной регенерации: клинический случай</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-5020-6897</contrib-id><contrib-id contrib-id-type="spin">4385-5810</contrib-id><name-alternatives><name xml:lang="en"><surname>Harka</surname><given-names>Ela R.</given-names></name><name xml:lang="ru"><surname>Харка</surname><given-names>Эльа Раимонд</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>MD</p></bio><email>elaharka@yandex.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-0779-1055</contrib-id><contrib-id contrib-id-type="spin">6283-6910</contrib-id><name-alternatives><name xml:lang="en"><surname>Risovannaya</surname><given-names>Olga N.</given-names></name><name xml:lang="ru"><surname>Рисованная</surname><given-names>Ольга Николаевна</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>dentrosa@mail.ru</email><xref ref-type="aff" rid="aff2"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0009-0001-7755-447X</contrib-id><name-alternatives><name xml:lang="en"><surname>Andreasyan</surname><given-names>Tatev Sh.</given-names></name><name xml:lang="ru"><surname>Андреасян</surname><given-names>Татев Шотаевна</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>MD</p></bio><email>andreasyan1983@mail.ru</email><xref ref-type="aff" rid="aff3"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0009-0009-8474-0383</contrib-id><contrib-id contrib-id-type="spin">6413-6042</contrib-id><name-alternatives><name xml:lang="en"><surname>Stolyar</surname><given-names>Roman I.</given-names></name><name xml:lang="ru"><surname>Столяр</surname><given-names>Роман Иванович</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>MD</p></bio><email>Cruel.82@mail.ru</email><xref ref-type="aff" rid="aff2"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-8455-0944</contrib-id><contrib-id contrib-id-type="spin">2088-5610</contrib-id><name-alternatives><name xml:lang="en"><surname>Mafagel</surname><given-names>Fatima A.</given-names></name><name xml:lang="ru"><surname>Мафагел</surname><given-names>Фатима Аслановна</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>MD</p></bio><email>fatima_mafagel@mail.ru</email><xref ref-type="aff" rid="aff2"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0009-0004-8440-8667</contrib-id><name-alternatives><name xml:lang="en"><surname>Shcherbinin</surname><given-names>Nikita A.</given-names></name><name xml:lang="ru"><surname>Щербинин</surname><given-names>Никита Алексеевич</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>drscherbinin@yandex.ru</email><xref ref-type="aff" rid="aff2"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0009-0008-8267-9614</contrib-id><name-alternatives><name xml:lang="en"><surname>Alshaban</surname><given-names>Daniil L.</given-names></name><name xml:lang="ru"><surname>Альшабан</surname><given-names>Даниил Лоэевич</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>abinrus@gmail.com</email><xref ref-type="aff" rid="aff2"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-1838-0737</contrib-id><contrib-id contrib-id-type="spin">4606-0939</contrib-id><name-alternatives><name xml:lang="en"><surname>Vinichenko</surname><given-names>Elena L.</given-names></name><name xml:lang="ru"><surname>Виниченко</surname><given-names>Елена Леонидовна</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>Elvinichenko@mail.ru</email><xref ref-type="aff" rid="aff2"/></contrib></contrib-group><aff-alternatives id="aff1"><aff><institution xml:lang="en">Peoples’ Friendship University of Russia</institution></aff><aff><institution xml:lang="ru">Российский университет дружбы народов имени Патриса Лумумбы</institution></aff></aff-alternatives><aff-alternatives id="aff2"><aff><institution xml:lang="en">Kuban State Medical University</institution></aff><aff><institution xml:lang="ru">Кубанский государственный медицинский университет</institution></aff></aff-alternatives><aff-alternatives id="aff3"><aff><institution xml:lang="en">Dental clinic “Korona”</institution></aff><aff><institution xml:lang="ru">Стоматологическая клиника «Корона»</institution></aff></aff-alternatives><pub-date date-type="preprint" iso-8601-date="2026-03-25" publication-format="electronic"><day>25</day><month>03</month><year>2026</year></pub-date><pub-date date-type="pub" iso-8601-date="2026-07-13" publication-format="electronic"><day>13</day><month>07</month><year>2026</year></pub-date><volume>32</volume><issue>3</issue><issue-title xml:lang="en"/><issue-title xml:lang="ru"/><fpage>286</fpage><lpage>293</lpage><history><date date-type="received" iso-8601-date="2026-02-01"><day>01</day><month>02</month><year>2026</year></date><date date-type="accepted" iso-8601-date="2026-03-25"><day>25</day><month>03</month><year>2026</year></date></history><permissions><copyright-statement xml:lang="en">Copyright ©; 2026, Eco-Vector</copyright-statement><copyright-statement xml:lang="ru">Copyright ©; 2026, Эко-Вектор</copyright-statement><copyright-year>2026</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="2029-07-13"/><license><ali:license_ref xmlns:ali="http://www.niso.org/schemas/ali/1.0/">https://creativecommons.org/licenses/by-nc-nd/4.0</ali:license_ref></license></permissions><self-uri xlink:href="https://medjrf.com/0869-2106/article/view/701992">https://medjrf.com/0869-2106/article/view/701992</self-uri><abstract xml:lang="en"><p>Horizontal atrophy of the alveolar ridge is a critical challenge in modern dental practice, significantly reducing the likelihood of successful osseointegration of a dental implant and necessitating various bone augmentation techniques. In classical guided bone regeneration procedures, additional barrier membranes and fixation devices are often required, and their use is frequently associated with additional invasive procedures.</p> <p>We present a case of a modified guided bone regeneration technique using a periosteal flap as a natural barrier membrane, which maximally harnesses the regenerative potential of the patient’s own tissues while minimizing procedural invasiveness.</p> <p>A 28-year-old patient presented with complaints of missing teeth 3.5 and 3.6 in the left mandible. Cone-beam computed tomography demonstrated severe horizontal bone atrophy, with an alveolar ridge width of 2.72 mm in the area of tooth 3.5 and 4.66 mm in the area of tooth 3.6. Guided bone regeneration surgery was performed with elevation of a periosteal flap by splitting the mucoperiosteal flap, creating multiple cortical perforations, and filling the subperiosteal space with allogeneic bone grafting material. At 3 months after the intervention, follow-up computed tomography demonstrated an increase in alveolar ridge width. In tooth 3.5, this measurement increased by 1.5 mm (55% of the initial value), and in tooth 3.6, by 0.54 mm (12%). Histological examination revealed the formation of mature bone tissue with a well-developed vascular network. In the cortical plate, a lamellar structure was observed, and the cancellous bone exhibited high-density reticular tissue.</p> <p>The presented case demonstrates the high efficacy of using a periosteal flap as a natural barrier membrane in guided bone regeneration. The use of this method provides sufficient bone augmentation for future dental implantation with minimal trauma and without the use of additional fixation devices. This method can be considered a viable alternative to classical bone grafting techniques for horizontal atrophy of the alveolar ridge of the mandible.</p></abstract><trans-abstract xml:lang="ru"><p>Горизонтальная атрофия альвеолярного гребня челюсти — одна из самых насущных проблем в современной стоматологической практике, значительно снижающая вероятность достижения хорошей остеоинтеграции дентального имплантата и диктующая необходимость применения разных методик костнопластических операций. При классическом выполнении процедур направленной костной регенерации зачастую приходится использовать дополнительные барьерные мембраны и элементы фиксации, при этом часто сопряжённые с дополнительными инвазивными процедурами.</p> <p>Представлен клинический случай применения модифицированной методики направленной костной регенерации с использованием периостального лоскута в качестве естественной барьерной мембраны, что позволяет максимально задействовать регенеративный потенциал собственных тканей пациента при минимальной инвазивности процедуры.</p> <p>Пациент 28 лет обратился с жалобами на отсутствие зубов 3.5 и 3.6 в области нижней челюсти слева. При проведении конусно-лучевой компьютерной томографии выявлена выраженная горизонтальная атрофия костной ткани с шириной альвеолярного гребня 2,72 мм в области зуба 3.5 и 4,66 мм — в области зуба 3.6. Проведена операция направленной костной регенерации с формированием периостального лоскута методом расщепления слизисто-надкостничного лоскута, создания множественных кортикальных перфораций и заполнения субпериостального пространства аллогенным костно-пластическим материалом. Спустя 3 мес. после вмешательства контрольная компьютерная томография выявила рост ширины альвеолярного гребня. У зуба 3.5 этот показатель увеличился на 1,5 мм (что составило 55% от исходной величины), а у зуба 3.6 — на 0,54 мм (12%). Гистологическое исследование показало формирование полноценной костной ткани с хорошо развитой сосудистой сетью. В составе кортикальной пластинки наблюдалась ламеллярная структура, а губчатое вещество характеризовалось высокой плотностью ретикулярной ткани.</p> <p>Представленный клинический случай показывает высокую эффективность использования периостального лоскута в качестве естественной барьерной мембраны при направленной костной регенерации. Использование этого метода обеспечивает достаточное наращивание костной ткани для будущей дентальной имплантации с минимальным травматизмом и без использования дополнительных фиксаторов. Данный метод можно считать хорошей заменой классическим методикам костнопластических операций при горизонтальной атрофии альвеолярного гребня нижней челюсти.</p></trans-abstract><kwd-group xml:lang="en"><kwd>guided bone regeneration</kwd><kwd>periosteal flap</kwd><kwd>alveolar ridge atrophy</kwd><kwd>dental implantation</kwd><kwd>osteogenesis</kwd><kwd>adult</kwd><kwd>case report</kwd></kwd-group><kwd-group xml:lang="ru"><kwd>направленная костная регенерация</kwd><kwd>периостальный лоскут</kwd><kwd>атрофия альвеолярного гребня</kwd><kwd>дентальная имплантация</kwd><kwd>остеогенез</kwd><kwd>взрослый пациент</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>Smeets R, Matthies L, Windisch P, et al. Horizontal augmentation techniques in the mandible: a systematic review. 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