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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="brief-report" dtd-version="1.2" xml:lang="en"><front><journal-meta><journal-id journal-id-type="publisher-id">Russian Journal of Infection and Immunity</journal-id><journal-title-group><journal-title xml:lang="en">Russian Journal of Infection and Immunity</journal-title><trans-title-group xml:lang="ru"><trans-title>Инфекция и иммунитет</trans-title></trans-title-group></journal-title-group><issn publication-format="print">2220-7619</issn><issn publication-format="electronic">2313-7398</issn><publisher><publisher-name xml:lang="en">SPb RAACI</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="publisher-id">18007</article-id><article-id pub-id-type="doi">10.15789/2220-7619-ETA-18007</article-id><article-categories><subj-group subj-group-type="toc-heading" xml:lang="en"><subject>SHORT COMMUNICATIONS</subject></subj-group><subj-group subj-group-type="toc-heading" xml:lang="ru"><subject>КРАТКИЕ СООБЩЕНИЯ</subject></subj-group><subj-group subj-group-type="article-type"><subject>Short Communication</subject></subj-group></article-categories><title-group><article-title xml:lang="en">Evaluating the associations between clinical signs and isolation frequency for individual microorganisms in patients with chronic periodontitis</article-title><trans-title-group xml:lang="ru"><trans-title>Оценка взаимосвязей клинических признаков и частоты выделения отдельных микроорганизмов у пациентов с хроническим пародонтитом</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-3200-5538</contrib-id><name-alternatives><name xml:lang="en"><surname>Bazhutova</surname><given-names>Irina V.</given-names></name><name xml:lang="ru"><surname>Бажутова</surname><given-names>Ирина Владимировна</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>PhD (Medicine), Associate Professor of the Department of Dentistry of Post-Graduate Education</p></bio><bio xml:lang="ru"><p>к.м.н., доцент кафедры стоматологии</p></bio><email>docba@mail.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-5905-1895</contrib-id><name-alternatives><name xml:lang="en"><surname>Lyamin</surname><given-names>Artem V.</given-names></name><name xml:lang="ru"><surname>Лямин</surname><given-names>Артем Викторович</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>DSc (Medicine), Associate Professor, Director of Research and Educational Professional Center for Genetic and Laboratory Technologies</p></bio><bio xml:lang="ru"><p>д.м.н., доцент, директор Научно-образовательного профессионального центра генетических и лабораторных технологий</p></bio><email>a.v.lyamin@samsmu.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-8864-4956</contrib-id><name-alternatives><name xml:lang="en"><surname>Alekseev</surname><given-names>Dmitriy V.</given-names></name><name xml:lang="ru"><surname>Алексеев</surname><given-names>Дмитрий Владимирович</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>Specialist of the Laboratory of Culturomic and Proteomic Research in Microbiology, Research and Educational Professional Center for Genetic and Laboratory Technologies</p></bio><bio xml:lang="ru"><p>специалист лаборатории культуромных и протеомных исследований в микробиологии Научно-образовательного профессионального центра генетических и лабораторных технологий</p></bio><email>d.v.alekseev@samsmu.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-9614-7255</contrib-id><name-alternatives><name xml:lang="en"><surname>Kaiumov</surname><given-names>Karim A.</given-names></name><name xml:lang="ru"><surname>Каюмов</surname><given-names>Карим Аскерович</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>Specialist of the Laboratory of Culturomic and Proteomic Research in Microbiology, Research and Educational Professional Center for Genetic and Laboratory Technologies</p></bio><bio xml:lang="ru"><p>специалист лаборатории культуромных и протеомных исследований в микробиологии Научно-образовательного профессионального центра генетических и лабораторных технологий</p></bio><email>k.a.kayumov@samsmu.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0009-0008-9843-7767</contrib-id><name-alternatives><name xml:lang="en"><surname>Pigalova</surname><given-names>Olesya I.</given-names></name><name xml:lang="ru"><surname>Пигалова</surname><given-names>Олеся Игоревна</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>Specialist of the Laboratory of Culturomic and Proteomic Research in Microbiology, Research and Educational Professional Center for Genetic and Laboratory Technologies</p></bio><bio xml:lang="ru"><p>специалист лаборатории культуромных и протеомных исследований в микробиологии Научно-образовательного профессионального центра генетических и лабораторных технологий</p></bio><email>pigalova58@gmail.com</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-8160-6965</contrib-id><name-alternatives><name xml:lang="en"><surname>Khamadeeva</surname><given-names>Alfiya M.</given-names></name><name xml:lang="ru"><surname>Хамадеева</surname><given-names>Альфия Минвалиевна</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>DSc (Medicine), Professor of the Department of Pediatric Dentistry and Orthodontics</p></bio><bio xml:lang="ru"><p>д.м.н., профессор кафедры стоматологии детского возраста и ортодонтии</p></bio><email>ca.51@mail.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0009-0008-0032-1687</contrib-id><name-alternatives><name xml:lang="en"><surname>Semenikhina</surname><given-names>Elizaveta S.</given-names></name><name xml:lang="ru"><surname>Семенихина</surname><given-names>Елизавета Сергеевна</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>Dentist-Surgeon</p></bio><bio xml:lang="ru"><p>врач стоматолог-хирург</p></bio><email>lizaveta-semenichina@mail.ru</email><xref ref-type="aff" rid="aff2"/></contrib></contrib-group><aff-alternatives id="aff1"><aff><institution xml:lang="en">Samara State Medical University of Ministry of Healthсare of Russian Federation</institution></aff><aff><institution xml:lang="ru">ФГБОУ ВО Самарский государственный медицинский университет Минздрава России</institution></aff></aff-alternatives><aff-alternatives id="aff2"><aff><institution xml:lang="en">LLC “Private Dentist and Сolleagues”</institution></aff><aff><institution xml:lang="ru">ООО «Частный Дантист и коллеги»</institution></aff></aff-alternatives><pub-date date-type="preprint" iso-8601-date="2026-01-26" publication-format="electronic"><day>26</day><month>01</month><year>2026</year></pub-date><pub-date date-type="pub" iso-8601-date="2026-03-30" publication-format="electronic"><day>30</day><month>03</month><year>2026</year></pub-date><volume>16</volume><issue>1</issue><issue-title xml:lang="en"/><issue-title xml:lang="ru"/><fpage>192</fpage><lpage>196</lpage><history><date date-type="received" iso-8601-date="2025-09-16"><day>16</day><month>09</month><year>2025</year></date><date date-type="accepted" iso-8601-date="2026-01-05"><day>05</day><month>01</month><year>2026</year></date></history><permissions><copyright-statement xml:lang="en">Copyright ©; 2026, Bazhutova I.V., Lyamin A.V., Alekseev D.V., Kaiumov K.A., Pigalova O.I., Khamadeeva A.M., Semenikhina E.S.</copyright-statement><copyright-statement xml:lang="ru">Copyright ©; 2026, Бажутова И.В., Лямин А.В., Алексеев Д.В., Каюмов К.А., Пигалова О.И., Хамадеева А.М., Семенихина Е.С.</copyright-statement><copyright-year>2026</copyright-year><copyright-holder xml:lang="en">Bazhutova I.V., Lyamin A.V., Alekseev D.V., Kaiumov K.A., Pigalova O.I., Khamadeeva A.M., Semenikhina E.S.</copyright-holder><copyright-holder xml:lang="ru">Бажутова И.В., Лямин А.В., Алексеев Д.В., Каюмов К.А., Пигалова О.И., Хамадеева А.М., Семенихина Е.С.</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://iimmun.ru/iimm/article/view/18007">https://iimmun.ru/iimm/article/view/18007</self-uri><abstract xml:lang="en"><p>Mucositis and peri-implantitis exert a significant negative impact on dental implantation success in dentistry. There are few studies on the association between peri-implantitis as well as mucositis and clinical signs of periodontal diseases. In addition, the role of normal oral microbiota in the emergence of these diseases remains debated. Therefore, the issue of long-term prognosis in dentistry becomes quite problematic. The aim of the study was to evaluate the association between the peri-implantitis as well as mucositis and representation of periodontal clinical signs and the isolation frequency for individual microorganisms from periodontal pockets. The study assessed 154 patients suffering from severe chronic generalized periodontitis who underwent dental implantation treatment. All patients underwent both a general clinical examination of the oral cavity, during which the oral mucosa condition and soft tissue architectonics were assessed, and a microbiological examination of periodontal pockets content, during which samples were inoculated using the author-proposed technique (patent for invention No. RU2794355), followed by microbial identification using MALDI-ToF mass spectrometry and PCR. It was found that peri-implantitis was associated with the exudate separation, bad breath and hypersensitivity of the teeth necks and roots, higher magnitude of clinical indices and more frequent isolation of <italic>Lactobacillus paraplantarum</italic> (p = 0.020),<italic> Neisseria weaveri</italic> (p = 0.020),<italic> Filifactor villosus</italic> (p = 0.033),<italic> Aggregatibacter actinomyocetemcomitans</italic> (p = 0.030) along with rarer isolation of<italic> Neisseria flavescens</italic> (p = 0.004),<italic> Veillonella dispar</italic> (p = 0.015) и<italic> Tannerella forsythia</italic> (p = 0.050).<italic> </italic>At the same time, mucositis was associated with tooth dislocation and more frequent isolation of<italic> Streptococcus mitis</italic> (p = 0.008),<italic> Streptococcus salivarius</italic> (p = 0.012),<italic> Actinomyces johnsonii</italic> (p = 0.046),<italic> Streptococcus gordonii</italic> (p = 0.032),<italic> Streptococcus infantis</italic> (p = 0.010),<italic> Acinetobacter pittii</italic> (p = 0.014),<italic> Veillonella atypica</italic> (p = 0.001),<italic> Enterobacter asburiae</italic> (p = 0.024) and with rarer isolation of<italic> Haemophilus pittmaniae</italic> (p = 0.049) (Pearson Chi-squared test). The study has demonstrated that diseases associated with dental implantation can be connected not only with a more frequent isolation of individual microorganisms, but also with certain clinical signs of periodontal diseases, which may later assist to develop methods for predicting risks in patients after dental implantation.</p></abstract><trans-abstract xml:lang="ru"><p>Мукозит и периимплантит представляют собой проблемы, которые в значительной мере отрицательно сказываются на успехах дентальной имплантации в стоматологии. В научной литературе недостаточно широко освещена связь периимплантита и мукозита с клиническими признаками заболеваний пародонта. Кроме того, до сих пор продолжается дискуссия о роли представителей нормальной микробиоты полости рта в развитии данных заболеваний. Все это делает вопрос построения долгосрочных прогнозов в стоматологии довольно проблемным. Цель исследования: оценить взаимосвязи наличия периимплантита и мукозита с теми или иными клиническими признаками заболеваний пародонта и частотой выделения отдельных микроорганизмов из пародонтальных карманов. В исследование были включены 154 пациента, страдающих от тяжелого хронического генерализованного пародонтита, развившегося после дентальной имплантации. Всем пациентам проводили как общеклиническое обследование полости рта, в ходе которого оценивали состояние слизистой оболочки полости рта и архитектоники мягких тканей, так и микробиологическое исследование содержимого пародонтальных карманов, в ходе которого проводили посев образцов по авторской методике (патент на изобретение № RU2794355) с последующей идентификацией микроорганизмов с помощью MALDI-ToF масс-спектрометрии и ПЦР-исследования. Было выявлено, что периимплантит был связан с наличием отделения экссудата, неприятного запаха изо рта и гиперчувствительности шеек и корней зубов, более высокими значениями клинических индексов, более частым выделением<italic> Lactobacillus paraplantarum</italic> (p = 0,020),<italic> Neisseria weaveri</italic> (p = 0,020),<italic> Filifactor villosus</italic> (p = 0,033),<italic> Aggregatibacter actinomycetemcomitans</italic> (p = 0,030) и с более редким выделением<italic> Neisseria flavescens</italic> (p = 0,004),<italic> Veillonella dispar</italic> (p = 0,015) и<italic> Tannerella forsythia</italic> (p = 0,050). В то же время мукозит был связан с наличием смещения зубов, более частым выделением<italic> Streptococcus mitis</italic> (p = 0,008),<italic> Streptococcus salivarius</italic> (p = 0,012),<italic> Actinomyces johnsonii</italic> (p = 0,046),<italic> Streptococcus gordonii</italic> (p = 0,032),<italic> Streptococcus infantis</italic> (p = 0,010),<italic> Acinetobacter pittii</italic> (p = 0,014),<italic> Veillonella atypica</italic> (p = 0,001),<italic> Enterobacter asburiae</italic> (p = 0,024) и с более редким выделением<italic> Haemophilus pittmaniae</italic> (p = 0,049) (критерий хи-квадрат Пирсона). Проведенное нами исследование продемонстрировало, что заболевания, ассоциированные с дентальной имплантацией, могут быть связаны не только с более частым выделением отдельных микроорганизмов, но и с определенными клиническими признаками поражения пародонта, что в перспективе может помочь разработать методики прогнозирования рисков у пациентов после дентальной имплантации.</p></trans-abstract><kwd-group xml:lang="en"><kwd>microbiota of periodontal pockets</kwd><kwd>periodontopathogenic microorganisms</kwd><kwd>chronic periodontitis</kwd><kwd>peri-implantitis</kwd><kwd>mucositis</kwd><kwd>dental implants</kwd></kwd-group><kwd-group xml:lang="ru"><kwd>микробиота пародонтальных карманов</kwd><kwd>пародонтопатогенные микроорганизмы</kwd><kwd>хронический пародонтит</kwd><kwd>периимплантит</kwd><kwd>мукозит</kwd><kwd>дентальные имплантаты</kwd></kwd-group><funding-group/></article-meta></front><body></body><back><ref-list><ref id="B1"><label>1.</label><mixed-citation>Abdullatif F.A., Almaarik B., Al-Askar M. 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