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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">periodontology</journal-id><journal-title-group><journal-title xml:lang="ru">Пародонтология</journal-title><trans-title-group xml:lang="en"><trans-title>Parodontologiya</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">1683-3759</issn><issn pub-type="epub">1726-7269</issn><publisher><publisher-name>Russian Periodontal Association (RPA)</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.33925/1683-3759-2022-27-1-61-73</article-id><article-id custom-type="elpub" pub-id-type="custom">periodontology-596</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>КЛИНИЧЕСКИЙ СЛУЧАЙ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>CASE REPORT</subject></subj-group></article-categories><title-group><article-title>Активная инфекция Candida spp. и Actinomyces spp. как возможная причина рефрактерности при лечении пародонтита</article-title><trans-title-group xml:lang="en"><trans-title>Candida spp. and Actinomyces spp. infections as a probable reason for resistance to periodontal therapy</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-9619-2905</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Нейзберг</surname><given-names>Д. М.</given-names></name><name name-style="western" xml:lang="en"><surname>Neyzberg</surname><given-names>D. M.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Нейзберг Даниил Михайлович, кандидат медицинских наук, доцент кафедры стоматологии терапевтической и пародонтологии, главный врач ООО «Городской пародонтологический центр Пакс» </p><p>Санкт-Петербург</p></bio><bio xml:lang="en"><p>Daniil M. Neyzberg, MD, PhD, Associate Professor of the Department of Restorative Dentistry and Periodontology, head doctor of City Periodontal Center „Paks” </p><p>Saint Petersburg</p></bio><email xlink:type="simple">vibor_2000@mail.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-8026-0800</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Орехова</surname><given-names>Л. Ю.</given-names></name><name name-style="western" xml:lang="en"><surname>Orekhova</surname><given-names>L. Yu.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Орехова Людмила Юрьевна, доктор медицинских наук, профессор, заведующая кафедрой стоматологии терапевтической и пародонтологии, президент Пародонтологической Ассоциации «РПА», вице-президент СтАР и СтАСПб</p><p>Санкт-Петербург</p></bio><bio xml:lang="en"><p>Liudmila Yu. Orekhova, MD, PhD, DSc, Professor, Head of the Department of Dentistry Restorative and Periodontology, President of RPA, Vice President of the Dental Association of St. Petersburg </p><p>Saint Petersburg</p></bio><email xlink:type="simple">prof_orekhova@mail.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-1094-7209</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Лобода</surname><given-names>Е. С.</given-names></name><name name-style="western" xml:lang="en"><surname>Loboda</surname><given-names>E. S.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Лобода Екатерина Сергеевна, кандидат медицинских наук, доцент кафедры стоматологии терапевтической и пародонтологии, врач-стоматолог ООО «Городской пародонтологический центр ПАКС»</p><p>Санкт-Петербург</p></bio><bio xml:lang="en"><p>Loboda Ekaterina S., PhD, Associate Professor of the department Dental therapeutic and periodontology, dentist of City Periodontal Center „Paks” Ltd </p><p>Saint Petersburg</p></bio><email xlink:type="simple">Ekaterina.loboda@gmail.com</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-5977-9173</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Силина</surname><given-names>Э. С.</given-names></name><name name-style="western" xml:lang="en"><surname>Silina</surname><given-names>E. S.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Силина Эльвира Сергеевна, доцент кафедры стоматологии терапевтической и пародонтологии</p><p>Санкт-Петербург</p></bio><bio xml:lang="en"><p>Elvira S. Silina, MD, PhD, Associate Professor of the Department of Restorative Dentistry and Periodontology  </p><p>Saint Petersburg</p></bio><email xlink:type="simple">elruzza@gmail.com</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Первый Санкт-Петербургский государственный медицинский университет имени академика И.П. Павлова</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Pavlov First Saint Petersburg State Medical University</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2022</year></pub-date><pub-date pub-type="epub"><day>14</day><month>03</month><year>2022</year></pub-date><volume>27</volume><issue>1</issue><fpage>61</fpage><lpage>73</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Нейзберг Д.М., Орехова Л.Ю., Лобода Е.С., Силина Э.С., 2022</copyright-statement><copyright-year>2022</copyright-year><copyright-holder xml:lang="ru">Нейзберг Д.М., Орехова Л.Ю., Лобода Е.С., Силина Э.С.</copyright-holder><copyright-holder xml:lang="en">Neyzberg D.M., Orekhova L.Y., Loboda E.S., Silina E.S.</copyright-holder><license xml:lang="ru" license-type="creative-commons-attribution" xlink:href="https://creativecommons.org/licenses/by/4.0/" xlink:type="simple"><license-p>Данная работа распространяется под лицензией Creative Commons Attribution 4.0.</license-p></license><license xml:lang="en" 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://www.parodont.ru/jour/article/view/596">https://www.parodont.ru/jour/article/view/596</self-uri><abstract><p>Актуальность. Рефрактерность в течении воспалительных заболеваний пародонта может достигать 7% от общего числа случаев и нередко связывается со специфичностью патогенной флоры. В качестве возможных клинических вариантов рассматривается активная инфекция, вызванная грибами рода Candida, и бактериальная инфекция (ранее относившаяся к микозам), причиной возникновения которой являются бактерии рода Actinomyces. Общность патологического процесса определяется не только полиморфностью возбудителей, способностью к морфологической трансформации и схожими нестандартными подходами в микробиологической диагностике, но и отсутствием, описанной, специфической клинической картины заболевания. При этом как в доступной научной литературе, так и в нашей клинической работе сформировался пул данных, демонстрирующий обнаружение Candida spp. и Actinomyces spp. в содержимом карманов в диагностически значимом количестве в группе пациентов с меньшим ответом на проводимую терапию. Однако в основной массе доступных нам исследований были использованы неморфологические методы исследования, которые сложно интерпретировать для оценки степени влияния инфекционного процесса на течение пародонтита. Возможные варианты от значимого этиологического звена, отягощающего фактора, фонового сопутствующего процесса или маркера системных или локальных патологических процессов до дисбиотических последствий антибактериальной терапии.Цель. Обратить внимание практикующих врачей стоматологов на особенность течения инфекционного процесса у пациентов с рефрактерным течением хронического пародонтита.Заключение. В статье приведены особенности дифференциальной диагностики заболеваний, определения групп риска, комплексного этиопатогенетического подхода к локальной и системной терапии на примере данных современной научной периодики, собственной аналитики и конкретных клинических случаев.</p></abstract><trans-abstract xml:lang="en"><p>Relevance. Resistance of periodontal diseases to conservative therapy may constitute up to 7% of all clinical cases and may be due to specific pathogens. Active infection caused by Candida spp. and bacterial infection (formerly known as mycosis) caused by Actinomyces spp. are possible clinical options. Both the absence of described specific clinical manifestations and pathogen variety, ability to morphological transformation and similar unconventional approaches to microbiological diagnosis determine the continuity of the pathological process. At the same time, both the available scientific literature and our clinical work evidenced the detection of a diagnostically significant quantity of Candida spp. and Actinomyces spp. in pockets of patients with a worse response to periodontal therapy. However, most available studies used non-morphological diagnostic methods, which are hard to interpret assess ing the effect of the infectious process on the course of periodontitis. Possible options include the following: from significant etiological reasons, aggravating factors, background process or marker of systemic or local disorders to the dysbiosis caused by antibacterial therapy.Propose. To draw the attention of dental practitioners to the peculiarities of the course of the infectious process in patients with resistance to periodontal therapy.Conclusion. The paper presents specific characteristics of differential diagnosis, risk group assessment, comprehensive approach to local and systemic therapy based on the data from modern literature, our analytics and particular clinical cases.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>пародонтит</kwd><kwd>рефрактерность</kwd><kwd>Candida</kwd><kwd>Actinomyces</kwd></kwd-group><kwd-group xml:lang="en"><kwd>periodontitis</kwd><kwd>resistance to treatment</kwd><kwd>Candida</kwd><kwd>Actinomyces</kwd></kwd-group><funding-group><funding-statement xml:lang="ru">Авторы выражают благодарность врачам и администрации кафедры стоматологии терапевтической и пародонтологии ФБОУ ГБО ПСПбГМУ имени академика И. П. 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