A finite element study on stress distribution of two different attachment designs under implant supported overdenture
Identifieur interne : 001502 ( Main/Exploration ); précédent : 001501; suivant : 001503A finite element study on stress distribution of two different attachment designs under implant supported overdenture
Auteurs : Mohamed I. El-Anwar [Égypte] ; Salah A. Yousief [Arabie saoudite, Égypte] ; Tarek A. Soliman [Égypte] ; Mahmoud M. Saleh [Arabie saoudite] ; Wael S. Omar [Égypte]Source :
- The Saudi Dental Journal [ 1013-9052 ] ; 2015.
Abstract
This study aimed to evaluate stress patterns generated within implant-supported mandibular overdentures retained by two different attachment types: ball and socket and locator attachments.
Commercial CAD/CAM and finite element analysis software packages were utilized to construct two 3D finite element models for the two attachment types. Unilateral masticatory compressive loads of 50, 100, and 150 N were applied vertically to the overdentures, parallel to the longitudinal axes of the implants. Loads were directed toward the central fossa in the molar region of each overdenture, that linear static analysis was carried out to find the generated stresses and deformation on each part of the studied model.
According to FEA results the ball attachment neck is highly stressed in comparison to the locator one. On the other hand mucosa and cortical bone received less stresses under ball and socket attachment.
Locator and ball and socket attachments induce equivalent stresses on bone surrounding implants. Locator attachment performance was superior to that of the ball and socket attachment in the implants, nylon caps, and overdenture. Locator attachments are highly recommended and can increase the interval between successive maintenance sessions.
Url:
DOI: 10.1016/j.sdentj.2015.03.001
PubMed: 26644755
PubMed Central: 4642187
Affiliations:
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El-Anwar</name><affiliation wicri:level="1"><nlm:aff id="af005">Mechanical Engineering Dept., National Research Centre, Giza, Egypt</nlm:aff><country xml:lang="fr">Égypte</country><wicri:regionArea>Mechanical Engineering Dept., National Research Centre, Giza</wicri:regionArea><wicri:noRegion>Giza</wicri:noRegion></affiliation></author><author><name sortKey="Yousief, Salah A" sort="Yousief, Salah A" uniqKey="Yousief S" first="Salah A." last="Yousief">Salah A. Yousief</name><affiliation wicri:level="1"><nlm:aff id="af010">Restorative Dentistry Dept., Al-Farabi Dental College, Jeddah, Saudi Arabia</nlm:aff><country xml:lang="fr">Arabie saoudite</country><wicri:regionArea>Restorative Dentistry Dept., Al-Farabi Dental College, Jeddah</wicri:regionArea><wicri:noRegion>Jeddah</wicri:noRegion></affiliation><affiliation wicri:level="1"><nlm:aff id="af015">Crown & Bridge Dept., Faculty of Oral and Dental Medicine, Assiut Branch, Al Azhar University, Egypt</nlm:aff><country xml:lang="fr">Égypte</country><wicri:regionArea>Crown & Bridge Dept., Faculty of Oral and Dental Medicine, Assiut Branch, Al Azhar University</wicri:regionArea><wicri:noRegion>Al Azhar University</wicri:noRegion></affiliation></author><author><name sortKey="Soliman, Tarek A" sort="Soliman, Tarek A" uniqKey="Soliman T" first="Tarek A." last="Soliman">Tarek A. Soliman</name><affiliation wicri:level="1"><nlm:aff id="af020">Dental Biomaterials Dept., Faculty of Dentistry, Mansura Univ., Mansura, Egypt</nlm:aff><country xml:lang="fr">Égypte</country><wicri:regionArea>Dental Biomaterials Dept., Faculty of Dentistry, Mansura Univ., Mansura</wicri:regionArea><wicri:noRegion>Mansura</wicri:noRegion></affiliation></author><author><name sortKey="Saleh, Mahmoud M" sort="Saleh, Mahmoud M" uniqKey="Saleh M" first="Mahmoud M." last="Saleh">Mahmoud M. Saleh</name><affiliation wicri:level="1"><nlm:aff id="af025">Lotus Dental Center, Jeddah, Saudi Arabia</nlm:aff><country xml:lang="fr">Arabie saoudite</country><wicri:regionArea>Lotus Dental Center, Jeddah</wicri:regionArea><wicri:noRegion>Jeddah</wicri:noRegion></affiliation></author><author><name sortKey="Omar, Wael S" sort="Omar, Wael S" uniqKey="Omar W" first="Wael S." last="Omar">Wael S. Omar</name><affiliation wicri:level="1"><nlm:aff id="af030">Foundation of Medical Services, Ministry of Agriculture, Cairo, Egypt</nlm:aff><country xml:lang="fr">Égypte</country><wicri:regionArea>Foundation of Medical Services, Ministry of Agriculture, Cairo</wicri:regionArea><wicri:noRegion>Cairo</wicri:noRegion></affiliation></author></analytic><series><title level="j">The Saudi Dental Journal</title><idno type="ISSN">1013-9052</idno><idno type="eISSN">1658-3558</idno><imprint><date when="2015">2015</date></imprint></series></biblStruct></sourceDesc></fileDesc><profileDesc><textClass></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en"><sec><title>Objective</title><p>This study aimed to evaluate stress patterns generated within implant-supported mandibular overdentures retained by two different attachment types: ball and socket and locator attachments.</p></sec><sec><title>Materials and methods</title><p>Commercial CAD/CAM and finite element analysis software packages were utilized to construct two 3D finite element models for the two attachment types. Unilateral masticatory compressive loads of 50, 100, and 150 N were applied vertically to the overdentures, parallel to the longitudinal axes of the implants. Loads were directed toward the central fossa in the molar region of each overdenture, that linear static analysis was carried out to find the generated stresses and deformation on each part of the studied model.</p></sec><sec><title>Results</title><p>According to FEA results the ball attachment neck is highly stressed in comparison to the locator one. On the other hand mucosa and cortical bone received less stresses under ball and socket attachment.</p></sec><sec><title>Conclusions</title><p>Locator and ball and socket attachments induce equivalent stresses on bone surrounding implants. Locator attachment performance was superior to that of the ball and socket attachment in the implants, nylon caps, and overdenture. Locator attachments are highly recommended and can increase the interval between successive maintenance sessions.</p></sec></div></front></TEI><affiliations><list><country><li>Arabie saoudite</li><li>Égypte</li></country></list><tree><country name="Égypte"><noRegion><name sortKey="El Anwar, Mohamed I" sort="El Anwar, Mohamed I" uniqKey="El Anwar M" first="Mohamed I." last="El-Anwar">Mohamed I. El-Anwar</name></noRegion><name sortKey="Omar, Wael S" sort="Omar, Wael S" uniqKey="Omar W" first="Wael S." last="Omar">Wael S. Omar</name><name sortKey="Soliman, Tarek A" sort="Soliman, Tarek A" uniqKey="Soliman T" first="Tarek A." last="Soliman">Tarek A. Soliman</name><name sortKey="Yousief, Salah A" sort="Yousief, Salah A" uniqKey="Yousief S" first="Salah A." last="Yousief">Salah A. Yousief</name></country><country name="Arabie saoudite"><noRegion><name sortKey="Yousief, Salah A" sort="Yousief, Salah A" uniqKey="Yousief S" first="Salah A." last="Yousief">Salah A. Yousief</name></noRegion><name sortKey="Saleh, Mahmoud M" sort="Saleh, Mahmoud M" uniqKey="Saleh M" first="Mahmoud M." last="Saleh">Mahmoud M. Saleh</name></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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