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 <front>
  <journal-meta>
   <journal-id journal-id-type="publisher-id">Actual problems in dentistry</journal-id>
   <journal-title-group>
    <journal-title xml:lang="en">Actual problems in dentistry</journal-title>
    <trans-title-group xml:lang="ru">
     <trans-title>Проблемы стоматологии</trans-title>
    </trans-title-group>
   </journal-title-group>
   <issn publication-format="print">2077-7566</issn>
   <issn publication-format="online">2412-9461</issn>
  </journal-meta>
  <article-meta>
   <article-id pub-id-type="publisher-id">71729</article-id>
   <article-id pub-id-type="doi">10.18481/2077-7566-2024-20-1-85-91</article-id>
   <article-categories>
    <subj-group subj-group-type="toc-heading" xml:lang="ru">
     <subject>ТЕРАПЕВТИЧЕСКАЯ СТОМАТОЛОГИЯ</subject>
    </subj-group>
    <subj-group subj-group-type="toc-heading" xml:lang="en">
     <subject>THERAPEUTIC  DENTISTRY</subject>
    </subj-group>
    <subj-group>
     <subject>ТЕРАПЕВТИЧЕСКАЯ СТОМАТОЛОГИЯ</subject>
    </subj-group>
   </article-categories>
   <title-group>
    <article-title xml:lang="en">THE EFFECT OF INTRACORONAL BLEACHING ON THE MICROHARDNESS OF DENTIN: A CLINICAL CASE WITH A LITERATURE REVIEW</article-title>
    <trans-title-group xml:lang="ru">
     <trans-title>ВЛИЯНИЕ ВНУТРИКОРОНКОВОГО ОТБЕЛИВАНИЯ НА МИКРОТВЕРДОСТЬ ДЕНТИНА: КЛИНИЧЕСКИЙ СЛУЧАЙ С ОБЗОРОМ ЛИТЕРАТУРЫ</trans-title>
    </trans-title-group>
   </title-group>
   <contrib-group content-type="authors">
    <contrib contrib-type="author">
     <name-alternatives>
      <name xml:lang="ru">
       <surname>Таптун</surname>
       <given-names>Юлия Александровна</given-names>
      </name>
      <name xml:lang="en">
       <surname>Tantun</surname>
       <given-names>Yulia Alexandrovna</given-names>
      </name>
     </name-alternatives>
     <email>taptun_yua@pfur.ru</email>
     <xref ref-type="aff" rid="aff-1"/>
    </contrib>
    <contrib contrib-type="author">
     <contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-6536-226X</contrib-id>
     <name-alternatives>
      <name xml:lang="ru">
       <surname>Макеева</surname>
       <given-names>Мария Константиновна</given-names>
      </name>
      <name xml:lang="en">
       <surname>Makeeva</surname>
       <given-names>Maria Konstantinovna</given-names>
      </name>
     </name-alternatives>
     <email>makeeva-mk@rudn.ru</email>
     <bio xml:lang="ru">
      <p>кандидат медицинских наук;</p>
     </bio>
     <bio xml:lang="en">
      <p>candidate of medical sciences;</p>
     </bio>
     <xref ref-type="aff" rid="aff-2"/>
    </contrib>
    <contrib contrib-type="author">
     <name-alternatives>
      <name xml:lang="ru">
       <surname>Шарганова</surname>
       <given-names>Виктория Дмитриевна</given-names>
      </name>
      <name xml:lang="en">
       <surname>Sharganova</surname>
       <given-names>Victoria Dmitrievna</given-names>
      </name>
     </name-alternatives>
     <email>1042210222@pfur.ru</email>
     <xref ref-type="aff" rid="aff-3"/>
    </contrib>
    <contrib contrib-type="author">
     <name-alternatives>
      <name xml:lang="ru">
       <surname>Наджафиделшад</surname>
       <given-names>Сана </given-names>
      </name>
      <name xml:lang="en">
       <surname>Najafidelshad</surname>
       <given-names>Sana </given-names>
      </name>
     </name-alternatives>
     <email>1032215466@pfur.ru</email>
     <xref ref-type="aff" rid="aff-4"/>
    </contrib>
    <contrib contrib-type="author">
     <name-alternatives>
      <name xml:lang="ru">
       <surname>Корзун</surname>
       <given-names>Алена Леонидовна</given-names>
      </name>
      <name xml:lang="en">
       <surname>Korzun</surname>
       <given-names>Alyona Leonidovna</given-names>
      </name>
     </name-alternatives>
     <email>1142220317@pfur.ru</email>
     <xref ref-type="aff" rid="aff-5"/>
    </contrib>
    <contrib contrib-type="author">
     <name-alternatives>
      <name xml:lang="ru">
       <surname>Мартынова</surname>
       <given-names>Светлана Васильевна</given-names>
      </name>
      <name xml:lang="en">
       <surname>Martynova</surname>
       <given-names>Svetlana Vasilyevna</given-names>
      </name>
     </name-alternatives>
     <email>podkopaeva_sv@pfur.ru</email>
     <xref ref-type="aff" rid="aff-6"/>
    </contrib>
    <contrib contrib-type="author">
     <name-alternatives>
      <name xml:lang="ru">
       <surname>Карнаева</surname>
       <given-names>Амина Сабировна</given-names>
      </name>
      <name xml:lang="en">
       <surname>Karnaeva</surname>
       <given-names>Amina Sabirovna</given-names>
      </name>
     </name-alternatives>
     <email>karnaeva-as@rudn.ru</email>
     <bio xml:lang="ru">
      <p>кандидат медицинских наук;</p>
     </bio>
     <bio xml:lang="en">
      <p>candidate of medical sciences;</p>
     </bio>
     <xref ref-type="aff" rid="aff-7"/>
    </contrib>
   </contrib-group>
   <aff-alternatives id="aff-1">
    <aff>
     <institution xml:lang="ru">Российский университет дружбы народов имени Патриса Лумумбы</institution>
     <city>Москва</city>
     <country>Россия</country>
    </aff>
    <aff>
     <institution xml:lang="en">Peoples' Friendship University of Russia named after Patrice Lumumba</institution>
     <city>Moscow</city>
     <country>Russian Federation</country>
    </aff>
   </aff-alternatives>
   <aff-alternatives id="aff-2">
    <aff>
     <institution xml:lang="ru">Российский университет дружбы народов имени Патриса Лумумбы</institution>
     <city>Москва</city>
     <country>Россия</country>
    </aff>
    <aff>
     <institution xml:lang="en">Russian Patrice Lumumba Peoples' Friendship University</institution>
     <city>Moscow</city>
     <country>Russian Federation</country>
    </aff>
   </aff-alternatives>
   <aff-alternatives id="aff-3">
    <aff>
     <institution xml:lang="ru">Российский университет дружбы народов имени Патриса Лумумбы</institution>
     <city>Москва</city>
     <country>Россия</country>
    </aff>
    <aff>
     <institution xml:lang="en">Peoples' Friendship University of Russia named after Patrice Lumumba</institution>
     <city>Moscow</city>
     <country>Russian Federation</country>
    </aff>
   </aff-alternatives>
   <aff-alternatives id="aff-4">
    <aff>
     <institution xml:lang="ru">Российский университет дружбы народов имени Патриса Лумумбы</institution>
     <city>Москва</city>
     <country>Россия</country>
    </aff>
    <aff>
     <institution xml:lang="en">Peoples' Friendship University of Russia named after Patrice Lumumba</institution>
     <city>Moscow</city>
     <country>Russian Federation</country>
    </aff>
   </aff-alternatives>
   <aff-alternatives id="aff-5">
    <aff>
     <institution xml:lang="ru">Российский университет дружбы народов имени Патриса Лумумбы</institution>
     <city>Москва</city>
     <country>Россия</country>
    </aff>
    <aff>
     <institution xml:lang="en">Peoples' Friendship University of Russia named after Patrice Lumumba</institution>
     <city>Moscow</city>
     <country>Russian Federation</country>
    </aff>
   </aff-alternatives>
   <aff-alternatives id="aff-6">
    <aff>
     <institution xml:lang="ru">Российский университет дружбы народов имени Патриса Лумумбы</institution>
     <city>Москва</city>
     <country>Россия</country>
    </aff>
    <aff>
     <institution xml:lang="en">Peoples' Friendship University of Russia named after Patrice Lumumba</institution>
     <city>Moscow</city>
     <country>Russian Federation</country>
    </aff>
   </aff-alternatives>
   <aff-alternatives id="aff-7">
    <aff>
     <institution xml:lang="ru">Российский университет дружбы народов имени Патриса Лумумбы</institution>
     <city>Москва</city>
     <country>Россия</country>
    </aff>
    <aff>
     <institution xml:lang="en">Peoples' Friendship University of Russia named after Patrice Lumumba</institution>
     <city>Moscow</city>
     <country>Russian Federation</country>
    </aff>
   </aff-alternatives>
   <pub-date publication-format="print" date-type="pub" iso-8601-date="2024-05-02T22:17:09+03:00">
    <day>02</day>
    <month>05</month>
    <year>2024</year>
   </pub-date>
   <pub-date publication-format="electronic" date-type="pub" iso-8601-date="2024-05-02T22:17:09+03:00">
    <day>02</day>
    <month>05</month>
    <year>2024</year>
   </pub-date>
   <volume>20</volume>
   <issue>1</issue>
   <fpage>85</fpage>
   <lpage>91</lpage>
   <history>
    <date date-type="received" iso-8601-date="2023-11-20T00:00:00+03:00">
     <day>20</day>
     <month>11</month>
     <year>2023</year>
    </date>
   </history>
   <self-uri xlink:href="https://dental-press.ru/en/nauka/article/71729/view">https://dental-press.ru/en/nauka/article/71729/view</self-uri>
   <abstract xml:lang="ru">
    <p>Цель. Анализ литературных источников о влиянии внутрикоронкового отбеливания на микротвердость дентина, а также демонстрация клинического случая успешной коррекции дисколорита, вызванного эндодонтическим герметиком, методом внутрикоронкового отбеливания с годовым сроком наблюдения.&#13;
Материалы и методы. Поиск литературных источников проводили в базах данных PubMed, Google Scholar, КиберЛенинка 24 сентября 2023 года по ключевым словам. Для анализа отбирались статьи на английском и русском языках. Критерии включения: оригинальные статьи в периодических журналах, in vitro и in situ исследования, исследования на удаленных зубах человека, исследования, в которых проводили оценку микротвердости дентина. В результате поиска в базе PubMed было найдено 11 источников, в научной электронной библиотеке e-library — 171, в базе КиберЛенинка — 2. После исключения дублирования и оценки на предмет критериев включения / не включения осталось 7 литературных источников.&#13;
Представленный клинический случай демонстрирует успешную коррекцию дисколорита, вызванного эндодонтическим герметиком, с помощью внутрикоронкового отбеливания гелем 35% перекиси водорода. &#13;
Результаты. При анализе литературы в лабораторных исследованиях выявлены различные условия, позволяющие снизить негативное влияние отбеливающего агента на ткань дентина, а именно активация ультрафиолетовой лампой, добавление красителя, обработка фторлаком после отбеливания.&#13;
В клиническом случае желаемый оттенок был получен за три процедуры отбеливания, затем существующая дефектная реставрация была заменена на новую, подходящую по цвету. В течение года наблюдения возврата цвета не произошло, эстетический результат был оценен как стабильный, пациентка высказала высокую удовлетворенность полученным результатом.  &#13;
Заключение. Процедура внутрикоронкового отбеливания может оказывать на микротвердость дентина негативное влияние различной степени выраженности. Выявление подходов, уменьшающих это влияние, является перспективным направлением для будущих исследований. Клинический случай демонстрирует, что внутрикоронковое отбеливание позволяет получить приемлемый эстетический результат и высокую удовлетворенность пациента.</p>
   </abstract>
   <trans-abstract xml:lang="en">
    <p>Aim. Analysis of literature sources about the effect of intracoronal bleaching on the microhardness of dentin, as well as demonstration of a clinical case of successful correction of tooth discoloration caused by endodontic sealant using the method of intracoronal bleaching with a one-year follow-up period.&#13;
Materials and methods. A search of literature sources was carried out in the PubMed, Google Scholar, CyberLeninka databases on September 24, 2023 using keywords. Articles in English and Russian were selected for analysis. Inclusion criteria: original articles, in vitro and in situ studies, studies on extracted human teeth, studies that assessed dentin microhardness. As a result of the search, 11 sources were found in the PubMed database, 171 in the scientific electronic library e-library, and 2 in the CyberLeninka database. After eliminating duplication and assessing the inclusion/non-inclusion criteria, 7 literary sources remained.&#13;
The presented clinical case demonstrates the successful correction of discoloration caused by endodontic sealant using intracoronal bleaching with 35 % hydrogen peroxide gel.&#13;
Results. When analyzing the literature, laboratory studies revealed various conditions that make it possible to reduce the negative effect of the bleaching agent on dentin tissue, namely activation with an ultraviolet lamp, addition of a dye, and treatment with fluoride varnish after bleaching.&#13;
In the clinical case, the desired shade was achieved in three bleaching procedures, then the existing defective restoration was replaced with a new shade-matching one. During the year of observation, there was no return of color, the aesthetic result was assessed as stable, the patient expressed high satisfaction with the result obtained.&#13;
Conclusion. The intracoronal bleaching procedure can have a negative effect of varying severity on dentin microhardness. Identifying approaches that reduce this impact is a promising direction for future research. The clinical case demonstrates that intracoronal bleaching provides acceptable esthetic results and high patient satisfaction.</p>
   </trans-abstract>
   <kwd-group xml:lang="ru">
    <kwd>внутрикоронковое отбеливание</kwd>
    <kwd>микротвердость дентина</kwd>
    <kwd>вертикальная трещина корня</kwd>
    <kwd>биомеханические свойства дентина</kwd>
    <kwd>эндодонтический герметик</kwd>
   </kwd-group>
   <kwd-group xml:lang="en">
    <kwd>internal bleaching</kwd>
    <kwd>dentine microhardness</kwd>
    <kwd>vertical root fracture</kwd>
    <kwd>biomechanical properties of dentin</kwd>
    <kwd>endodontic sealer</kwd>
   </kwd-group>
  </article-meta>
 </front>
 <body>
  <p></p>
 </body>
 <back>
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