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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">41021</article-id>
   <article-id pub-id-type="doi">10.18481/2077-7566-20-16-4-122-129</article-id>
   <article-categories>
    <subj-group subj-group-type="toc-heading" xml:lang="ru">
     <subject>ХИРУРГИЧЕСКАЯ СТОМАТОЛОГИЯ И  ИМПЛАНТОЛОГИЯ</subject>
    </subj-group>
    <subj-group subj-group-type="toc-heading" xml:lang="en">
     <subject>SURGICAL DENTISTRY AND IMPLANTOLOGY</subject>
    </subj-group>
    <subj-group>
     <subject>ХИРУРГИЧЕСКАЯ СТОМАТОЛОГИЯ И  ИМПЛАНТОЛОГИЯ</subject>
    </subj-group>
   </article-categories>
   <title-group>
    <article-title xml:lang="en">STUDY BY THE METHOD OF ELEKTRONIC PARAMAGNETIC RESONANCE OF THE INFUENCE OF PHYSICS-CHEMICAL AND STRUCTURAL CHARACTERISTICS OF BONE TISSUE ON THE PROCESSES OF OSSEOINTEGRATION OF DENTAL IMPLANTS WITH DIFFERENT MICROSTRUCTURE OF THE SURFACE</article-title>
    <trans-title-group xml:lang="ru">
     <trans-title>ИЗУЧЕНИЕ МЕТОДОМ ЭЛЕКТРОННОГО ПАРАМАГНИТНОГО РЕЗОНАНСА ВЛИЯНИЯ ФИЗИКО-ХИМИЧЕСКИХ И СТРУКТУРНЫХ ХАРАКТЕРИСТИК КОСТНОЙ ТКАНИ НА ПРОЦЕССЫ ОСТЕОИНТЕГРАЦИИ ДЕНТАЛЬНЫХ ИМПЛАНТАТОВ С РАЗЛИЧНОЙ МИКРОСТРУКТУРОЙ ПОВЕРХНОСТИ</trans-title>
    </trans-title-group>
   </title-group>
   <contrib-group content-type="authors">
    <contrib contrib-type="author">
     <name-alternatives>
      <name xml:lang="ru">
       <surname>Челышев</surname>
       <given-names>Юрий Александрович</given-names>
      </name>
      <name xml:lang="en">
       <surname>Chelyshev</surname>
       <given-names>Yuriy Aleksandrovich</given-names>
      </name>
     </name-alternatives>
     <xref ref-type="aff" rid="aff-1"/>
    </contrib>
    <contrib contrib-type="author">
     <name-alternatives>
      <name xml:lang="ru">
       <surname>Гришин</surname>
       <given-names>Петр Олегович</given-names>
      </name>
      <name xml:lang="en">
       <surname>Grishin</surname>
       <given-names>Petr Olegovit</given-names>
      </name>
     </name-alternatives>
     <email>phlus8@mail.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>Савранский</surname>
       <given-names>Филипп Захарович</given-names>
      </name>
      <name xml:lang="en">
       <surname>Savranskiy</surname>
       <given-names>Filipp Zaharovich</given-names>
      </name>
     </name-alternatives>
     <email>elinaelina16@hotmail.com</email>
     <bio xml:lang="ru">
      <p>доктор медицинских наук;</p>
     </bio>
     <bio xml:lang="en">
      <p>doctor of medical sciences;</p>
     </bio>
     <xref ref-type="aff" rid="aff-3"/>
    </contrib>
    <contrib contrib-type="author">
     <name-alternatives>
      <name xml:lang="ru">
       <surname>Гафуров</surname>
       <given-names>Марат Ревгерович</given-names>
      </name>
      <name xml:lang="en">
       <surname>Gafurov</surname>
       <given-names>Marat Revgerovich</given-names>
      </name>
     </name-alternatives>
     <xref ref-type="aff" rid="aff-4"/>
    </contrib>
    <contrib contrib-type="author">
     <name-alternatives>
      <name xml:lang="ru">
       <surname>Калинникова</surname>
       <given-names>Елена Александровна</given-names>
      </name>
      <name xml:lang="en">
       <surname>Kalinnikova</surname>
       <given-names>Elena Aleksandrovna</given-names>
      </name>
     </name-alternatives>
     <email>elena-vilkova@inbox.ru</email>
     <xref ref-type="aff" rid="aff-5"/>
    </contrib>
    <contrib contrib-type="author">
     <name-alternatives>
      <name xml:lang="ru">
       <surname>Чигарина</surname>
       <given-names>Светлана Егоровна</given-names>
      </name>
      <name xml:lang="en">
       <surname>Chigarina</surname>
       <given-names>Svetlana Egorovna</given-names>
      </name>
     </name-alternatives>
     <email>apelisin91@yandex.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-6"/>
    </contrib>
   </contrib-group>
   <aff-alternatives id="aff-1">
    <aff>
     <institution xml:lang="ru">ФГБОУ ВО Казанский ГМУ Минздрава России</institution>
     <country>Россия</country>
    </aff>
    <aff>
     <institution xml:lang="en">ФГБОУ ВО Казанский ГМУ Минздрава России</institution>
     <country>Russian Federation</country>
    </aff>
   </aff-alternatives>
   <aff-alternatives id="aff-2">
    <aff>
     <institution xml:lang="ru">Казанский государственный медицинский университет</institution>
    </aff>
    <aff>
     <institution xml:lang="en">Kazan State Medical University</institution>
    </aff>
   </aff-alternatives>
   <aff-alternatives id="aff-3">
    <aff>
     <institution xml:lang="ru">Иерусалимский университет</institution>
     <country>Израиль</country>
    </aff>
    <aff>
     <institution xml:lang="en">Иерусалимский университет</institution>
     <country>Israel</country>
    </aff>
   </aff-alternatives>
   <aff-alternatives id="aff-4">
    <aff>
     <institution xml:lang="ru">Казанский федеральный университет / Институт физики</institution>
     <city>Казань</city>
     <country>Россия</country>
    </aff>
    <aff>
     <institution xml:lang="en">Kazan Federal University / Institute of Physics</institution>
     <city>Kazan</city>
     <country>Russian Federation</country>
    </aff>
   </aff-alternatives>
   <aff-alternatives id="aff-5">
    <aff>
     <institution xml:lang="ru">Казанский государственный медицинский университет</institution>
     <city>Казань</city>
     <country>Россия</country>
    </aff>
    <aff>
     <institution xml:lang="en">Kazan State Medical University</institution>
     <city>Kazan</city>
     <country>Russian Federation</country>
    </aff>
   </aff-alternatives>
   <aff-alternatives id="aff-6">
    <aff>
     <institution xml:lang="ru">Самарский государственный медицинский университет</institution>
     <city>Самара</city>
     <country>Россия</country>
    </aff>
    <aff>
     <institution xml:lang="en">Samara State Medical University</institution>
     <city>Samara</city>
     <country>Russian Federation</country>
    </aff>
   </aff-alternatives>
   <pub-date publication-format="print" date-type="pub" iso-8601-date="2020-12-28T12:06:08+03:00">
    <day>28</day>
    <month>12</month>
    <year>2020</year>
   </pub-date>
   <pub-date publication-format="electronic" date-type="pub" iso-8601-date="2020-12-28T12:06:08+03:00">
    <day>28</day>
    <month>12</month>
    <year>2020</year>
   </pub-date>
   <volume>16</volume>
   <issue>4</issue>
   <fpage>122</fpage>
   <lpage>129</lpage>
   <history>
    <date date-type="received" iso-8601-date="2020-12-03T12:06:08+03:00">
     <day>03</day>
     <month>12</month>
     <year>2020</year>
    </date>
    <date date-type="accepted" iso-8601-date="2020-12-10T12:06:08+03:00">
     <day>10</day>
     <month>12</month>
     <year>2020</year>
    </date>
   </history>
   <self-uri xlink:href="https://dental-press.ru/en/nauka/article/41021/view">https://dental-press.ru/en/nauka/article/41021/view</self-uri>
   <abstract xml:lang="ru">
    <p>Цель. Изучение методом электронного парамагнитного резонанса (ЭПР) физико- химических и структурных особенностей костной ткани и их влияние на процессы остеоинтеграции при проведении дентальной имплантации с использованием  имплантатов с разной макро-микроструктурой поверхности.&#13;
Материал и методы. Экспериментальное исследование проведено на 7 вьетнамских вислобрюхих мини-свиньях. Под наркозом методами непосредственной и отсроченной имплантации устанавливали имплантаты с различной макро-микроструктурой поверхности  (SLA, RBM, ). На разных сроках эксперимента, после соответственного обезболивания, щадящим методом производили удаление имплантатов с небольшими фрагментами периимплантной костной ткани. Макропрепараты костной ткани челюстей после распиливания на блоки и извлечения имплантатов, а также соответствующей подготовки, исследовали методом стационарного электронного парамагнитного резонанса. &#13;
Результаты. Исследование выявило, что введение имплантата в челюстную кость приводит к структурным изменениям окружающей имплантат костной ткани. После предварительного облучения в исследуемых образцах наблюдали спектры ЭПР, обусловленные различными типами парамагнитных центров. Идентифицированы два типа центров:   и F-центр. Спектр второго типа отражает присутствие в гидроксиапатитах дефектов решетки, связанных с изоморфизмом     Полученные данные свидетельствуют о том, что одной из причин более высокого содержания свободных радикалов (СР) в костной ткани в результате облучения после проведения дентальной имплантации является ослабление химических связей, большая мобильность фрагментов, составляющих ее структуру. Надо полагать, что высокое содержание СР в костной ткани в послеоперационном периоде есть не что иное, как результат нарушения процесса минерализации, который сопровождается заменой фосфатных групп на ионы карбоната, находящиеся в свободнорадикальном состоянии. Выявлено также, что структурная целостность кости в значительной мере зависит от степени упорядоченности микрокристаллов гидроксиапатита. По данным ЭПР наиболее благоприятное восстановление кости (процесс остеоинтеграции) происходит при использовании имплантатов с поверхностью. &#13;
Выводы. Исследования методом ЭПР нативных и карбонатных радикалов являются уникальным инструментом для изучения физико-химических и структурных особенностей костной ткани и их роли в процессе остеоинтеграции имплантатов. Скорость остеоинтеграции для имплантатов с разной микроструктурой поверхности неодинакова. Показатель ЭПР может быть использован как дополнительный метод контроля интеграции имплантатов в костную ткань.</p>
   </abstract>
   <trans-abstract xml:lang="en">
    <p>Aim. Study by the method of electronic paramagnetic resonance (EPR) physical- chemical and structural features of bone tissue and their effect on the processes of osseointegration during dental implantation using implants with different macro-microstructure of the surface.&#13;
Material and methods. The experimental study was conducted on 7 Vietnamese visobryu-pig mini-pigs. Under anesthesia, implants with different macro-microstructures of the surface (SLA, RBM,  ) were installed under the methods of direct and delayed implantation. At different dates of the experiment, after the appropriate anesthesia, the gentle method was to remove implants with small fragments of periemplant bone tissue. Macro-drugs of bone tissue of the jaws after sawing on blocks and extraction of implants, as well as appropriate preparation, were investigated by the method of stationary electronic paramagnetic resonance.&#13;
Results. As a result of the study it was revealed that the insertation of the implant into the jaw bone leads to structural changes in the surrounding bone implant. After prior exposure, the EPR spectrums, caused by different types of paramagnetic centers, were observed in the samples studied. Two types of centers,  , have been identified. and F is the center. The spectrum of the second type reflects the presence in hydroxiapatites of lattice defects associated with isomorphism,   and,  . The findings suggest that one of the reasons for the higher content of free radicals (SR) in bone tissue derived from radiation, after dental implantation is the weakening of chemical bonds, greater mobility of fragments that make up its structure. It must be assumed that the high content of SR in the bone in the postoperative period is nothing but a result of the disruption of the mineralization process, which is accompanied by the replacement of phosphate groups with carbonate ions that are free-radicalized. It has also been revealed that the structural integrity of the bone depends to a large extent on the degree of orderliness of microcrystals of hydroxyapatite. According to EPR, the most favorable bone recovery (the process of osseointegration) occurs when using implants with a surface,  .&#13;
Conclusions. EPR research of native and carbonate radicals is a unique tool for studying the physical and chemical and structural features of bone tissue and their role in the process of osseointegration of implants. The speed of osseointegration for implants with different microstructures of the surface varies. EPR can be used as an additional method to control the integration of implants into bone tissue.</p>
   </trans-abstract>
   <kwd-group xml:lang="ru">
    <kwd>электронный парамагнитный резонанс</kwd>
    <kwd>имплантаты</kwd>
    <kwd>свободные радикалы</kwd>
    <kwd>остеоинтеграция</kwd>
    <kwd>костная ткань</kwd>
    <kwd>апатит</kwd>
    <kwd>карбонатные группы</kwd>
    <kwd>непосредственная имплантация</kwd>
    <kwd>стоматология</kwd>
    <kwd>клинические исследования</kwd>
   </kwd-group>
   <kwd-group xml:lang="en">
    <kwd>electronic paramagnetic resonance</kwd>
    <kwd>implants</kwd>
    <kwd>free radicals</kwd>
    <kwd>osseointegration</kwd>
    <kwd>bone tissue</kwd>
    <kwd>apatite</kwd>
    <kwd>carbonate groups</kwd>
    <kwd>immediate implantation</kwd>
    <kwd>dentistry</kwd>
    <kwd>clinical study</kwd>
   </kwd-group>
  </article-meta>
 </front>
 <body>
  <p></p>
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