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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">57073</article-id>
   <article-id pub-id-type="doi">10.18481/2077-7566-2022-18-4-80-89</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">ANALYSIS OF THE STRESS-STRAINED STATE IN THE BONE AND THE IMPLANT--BONE INTERFACE DEPENDING ON THE DIAMETER, LENGTH, ANGLE OF THE IMPLANT AND DIRECTION OF APPLICATION OF FORCE</article-title>
    <trans-title-group xml:lang="ru">
     <trans-title>НАПРЯЖЕННО-ДЕФОРМИРОВАННОЕ СОСТОЯНИЕ В КОСТИ И ИНТЕРФЕЙСЕ «ИМПЛАНТАТ — КОСТЬ»</trans-title>
    </trans-title-group>
   </title-group>
   <contrib-group content-type="authors">
    <contrib contrib-type="author">
     <name-alternatives>
      <name xml:lang="ru">
       <surname>Салеева</surname>
       <given-names>Гульшат Тауфиковна</given-names>
      </name>
      <name xml:lang="en">
       <surname>Saleeva</surname>
       <given-names>Gul'shat Taufikovna</given-names>
      </name>
     </name-alternatives>
     <email>rin-gul@mail.ru</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-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>Салеев</surname>
       <given-names>Ринат Ахмедуллович</given-names>
      </name>
      <name xml:lang="en">
       <surname>Saleev</surname>
       <given-names>Rinat A.</given-names>
      </name>
     </name-alternatives>
     <email>rinat.saleev@gmail.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-2"/>
    </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-3"/>
    </contrib>
   </contrib-group>
   <aff-alternatives id="aff-1">
    <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-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">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>
   <pub-date publication-format="print" date-type="pub" iso-8601-date="2022-12-28T12:06:08+03:00">
    <day>28</day>
    <month>12</month>
    <year>2022</year>
   </pub-date>
   <pub-date publication-format="electronic" date-type="pub" iso-8601-date="2022-12-28T12:06:08+03:00">
    <day>28</day>
    <month>12</month>
    <year>2022</year>
   </pub-date>
   <volume>18</volume>
   <issue>4</issue>
   <fpage>80</fpage>
   <lpage>89</lpage>
   <history>
    <date date-type="received" iso-8601-date="2022-12-03T12:06:08+03:00">
     <day>03</day>
     <month>12</month>
     <year>2022</year>
    </date>
    <date date-type="accepted" iso-8601-date="2022-12-10T12:06:08+03:00">
     <day>10</day>
     <month>12</month>
     <year>2022</year>
    </date>
   </history>
   <self-uri xlink:href="https://dental-press.ru/en/nauka/article/57073/view">https://dental-press.ru/en/nauka/article/57073/view</self-uri>
   <abstract xml:lang="ru">
    <p>Введение. В настоящей статье представлены результаты математического моделирования напряженно-деформированного состояния в костной ткани, окружающей имплантат, и соединении «имплантат — кость» в зависимости от диаметра и длины имплантата при различных направлениях приложения силы и угла установки имплантата.&#13;
Цель. Изучить влияние диаметра, длины имплантата и угла нагрузки на поля напряжения в трехмерной системе «имплантат — кость» с конечными элементами и определить влияние угла нагрузки на поля напряжений при изменении диаметра и длины.&#13;
Материалы и методы. Для изучения распределения и анализа напряженно-деформированного состояния в костной ткани вокруг имплантатов разного диаметра и длины при проведении дентальной имплантации была создана трехмерная конечно-элементная модель нижней челюсти. С помощью компьютерной томографии и программного обеспечения Universal Surgical Integration System были разработаны три модели. &#13;
Результаты. Во всех исследуемых случаях максимальные напряжения достигались в кортикальной кости ввиду ее большей жесткости. Однако, так как кортикальная и губчатая кость имеют разные прочностные характеристики, была необходимость рассматривать напряжение на этих участках отдельно.&#13;
В кортикальной кости максимальные напряжения всегда достигались вблизи края отверстия и контакта с имплантатом соответственно. В губчатой кости во многих случаях максимальные напряжения были отмечены в области апекса имплантата. В то же время при установке имплантата под углом или при букколингвальном направлении приложения нагрузки напряжения перераспределяются в пользу губчатой кости.&#13;
Выводы. Можно прийти к выводу, что увеличение длины и диаметра имплантата приводит к заметному снижению напряжений в костной ткани, окружающей имплантат, и в соединении «имплантат — кость». Полученные результаты демонстрируют, что имплантаты небольшого диаметра и длины, установленные в челюстную кость под наклонным углом нагрузки, являются наименее благоприятным вариантом для распределения напряжения на границе «имплантат — кость».</p>
   </abstract>
   <trans-abstract xml:lang="en">
    <p>Introduction. This article presents the results of mathematical modeling of the stress-strain state in the bone tissue surrounding the implant and the implant-bone connection depending on the diameter and length of the implant in the case of different directions of force application and the implant-bone implant installation angle.&#13;
Target. To study the effect of the diameter, length of the implant and the load angle on the stress fields in a three-dimensional implant-bone system with finite elements and determine the effect of the load angle on the stress fields with a change in diameter and length.&#13;
Materials and methods. To study the distribution and analysis of the stress-strain state in the bone tissue around implants of different diameters and lengths during dental implantation, a three-dimensional finite element model of the lower jaw was created. Three models were developed using computed tomography and the Universal Surgical Integration System software.&#13;
Results. In all cases studied, the maximum stresses were achieved in the cortical bone due to its greater rigidity. However, since cortical and cancellous bone have different strength characteristics, it was necessary to consider the stress in these areas separately.&#13;
In the cortical bone, the maximum stresses were always reached near the edge of the hole and the contact with the implant, respectively. In cancellous bone, in many cases, the maximum stresses were noted in the region of the implant apex. At the same time, when the implant is placed at an angle or in the buccolingual direction of load application, the stresses are redistributed in favor of the cancellous bone.&#13;
Findings. Thus, in general, it can be concluded that an increase in the length and diameter of the implant leads to a noticeable decrease in stresses in the bone tissue surrounding the implant and in the implant-bone junction. The obtained results demonstrated that implants of small diameter and length, installed in the jawbone at an oblique loading angle, are the least favorable option for stress distribution at the implant-bone interface.</p>
   </trans-abstract>
   <kwd-group xml:lang="ru">
    <kwd>дентальная имплантация</kwd>
    <kwd>напряженно-деформированное состояние</kwd>
    <kwd>имплантат</kwd>
    <kwd>диаметр</kwd>
    <kwd>длина</kwd>
    <kwd>эквивалентные напряжения</kwd>
    <kwd>направление нагрузки</kwd>
   </kwd-group>
   <kwd-group xml:lang="en">
    <kwd>dental implantation</kwd>
    <kwd>mathematical modeling</kwd>
    <kwd>stress-strain state</kwd>
    <kwd>implant</kwd>
    <kwd>diameter</kwd>
    <kwd>length</kwd>
    <kwd>equivalent stresses</kwd>
    <kwd>load direction</kwd>
   </kwd-group>
  </article-meta>
 </front>
 <body>
  <p></p>
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