Effect of proximal contact strength on the three-dimensional displacements of implant-supported cantilever fixed partial dentures under axial loading
Identifieur interne : 001A45 ( Pmc/Checkpoint ); précédent : 001A44; suivant : 001A46Effect of proximal contact strength on the three-dimensional displacements of implant-supported cantilever fixed partial dentures under axial loading
Auteurs : Zhen-Zhen Peng ; Xin-Min Chen ; Jun Wang ; Ai-Jie Li ; Zu-Jie XuSource :
- Journal of Zhejiang University. Science. B [ 1673-1581 ] ; 2013.
Abstract
Objective: This study investigated the effect of proximal contact strength on the three-dimensional displacements of cantilever fixed partial denture (CFPD) under vertically concentrated loading with digital laser speckle (DLS) technique. Methods: Fresh mandible of beagle dog was used to establish the implant-supported CFPD for specimen. DLS technique was employed for measuring the three-dimensional displacement of the prosthesis under vertically concentrated loading ranging from 200 to 3 000 g. The effect of the contact tightness on the displacement of CFPD was investigated by means of changing the contact tightness. Results: When an axial concentrated loading was exerted on the pontic of the implant-supported CFPD, the displacement of the CFPD was the greatest. The displacement of the prosthesis decreased with the increase of contact strength. When the contact strength was 0, 0.95, and 3.25 N, the displacement of the buccolingual direction was smaller than that of the mesiodistal direction but greater than that of the occlusogingival direction. When the force on the contact area was 6.50 N, the mesiodistal displacement of the prosthesis was the biggest while the buccolingual displacement was the smallest. Conclusions: The implant-supported CFPD is an effective therapy for fully or partially edentulous patients. The restoration of the contact area and the selection of the appropriate contact strength can reduce the displacement of the CFPD, and get a better stress distribution. The most appropriate force value is 3.25 N in this study.
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DOI: 10.1631/jzus.B1200264
PubMed: 23733430
PubMed Central: 3682169
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<front><journal-meta><journal-id journal-id-type="nlm-ta">J Zhejiang Univ Sci B</journal-id><journal-id journal-id-type="iso-abbrev">J Zhejiang Univ Sci B</journal-id><journal-id journal-id-type="publisher-id">JZUS</journal-id><journal-title-group><journal-title>Journal of Zhejiang University. Science. B</journal-title></journal-title-group><issn pub-type="ppub">1673-1581</issn><issn pub-type="epub">1862-1783</issn><publisher><publisher-name>Zhejiang University Press</publisher-name><publisher-loc>Hangzhou</publisher-loc></publisher></journal-meta><article-meta><article-id pub-id-type="pmid">23733430</article-id><article-id pub-id-type="pmc">3682169</article-id><article-id pub-id-type="doi">10.1631/jzus.B1200264</article-id><article-categories><subj-group subj-group-type="heading"><subject>Biomedicine</subject><subj-group><subject>Reports</subject></subj-group></subj-group></article-categories><title-group><article-title>Effect of proximal contact strength on the three-dimensional displacements of implant-supported cantilever fixed partial dentures under axial loading</article-title></title-group><contrib-group><contrib contrib-type="author"><name><surname>Peng</surname><given-names>Zhen-zhen</given-names></name></contrib><contrib contrib-type="author"><name><surname>Chen</surname><given-names>Xin-min</given-names></name><xref ref-type="corresp" rid="cor01">†</xref><xref ref-type="author-notes" rid="CorAuth">‡</xref></contrib><contrib contrib-type="author"><name><surname>Wang</surname><given-names>Jun</given-names></name></contrib><contrib contrib-type="author"><name><surname>Li</surname><given-names>Ai-jie</given-names></name></contrib><contrib contrib-type="author"><name><surname>Xu</surname><given-names>Zu-jie</given-names></name></contrib></contrib-group><aff>State Key Laboratory of Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, China</aff><author-notes><fn id="CorAuth"><label>‡</label><p>Corresponding Author</p></fn><corresp id="cor01">†E-mail:<email>chenxinmin218@163.com</email></corresp></author-notes><pub-date pub-type="ppub"><month>6</month><year>2013</year></pub-date><volume>14</volume><issue>6</issue><fpage>526</fpage><lpage>532</lpage><history><date date-type="received"><day>26</day><month>9</month><year>2012</year></date><date date-type="accepted"><day>5</day><month>3</month><year>2013</year></date></history><permissions><copyright-statement>Copyright © Zhejiang University and Springer-Verlag Berlin Heidelberg 2013</copyright-statement><copyright-year>2013</copyright-year></permissions><abstract><p>Objective: This study investigated the effect of proximal contact strength on the three-dimensional displacements of cantilever fixed partial denture (CFPD) under vertically concentrated loading with digital laser speckle (DLS) technique. Methods: Fresh mandible of beagle dog was used to establish the implant-supported CFPD for specimen. DLS technique was employed for measuring the three-dimensional displacement of the prosthesis under vertically concentrated loading ranging from 200 to 3 000 g. The effect of the contact tightness on the displacement of CFPD was investigated by means of changing the contact tightness. Results: When an axial concentrated loading was exerted on the pontic of the implant-supported CFPD, the displacement of the CFPD was the greatest. The displacement of the prosthesis decreased with the increase of contact strength. When the contact strength was 0, 0.95, and 3.25 N, the displacement of the buccolingual direction was smaller than that of the mesiodistal direction but greater than that of the occlusogingival direction. When the force on the contact area was 6.50 N, the mesiodistal displacement of the prosthesis was the biggest while the buccolingual displacement was the smallest. Conclusions: The implant-supported CFPD is an effective therapy for fully or partially edentulous patients. The restoration of the contact area and the selection of the appropriate contact strength can reduce the displacement of the CFPD, and get a better stress distribution. The most appropriate force value is 3.25 N in this study.</p></abstract><kwd-group><kwd>Cantilever fixed partial denture</kwd><kwd>Digital laser speckle technique</kwd><kwd>Contact strength</kwd><kwd>Three-dimensional displacement</kwd></kwd-group><custom-meta-group><custom-meta><meta-name>Crosschecked</meta-name><meta-value>May 17, 2013</meta-value></custom-meta></custom-meta-group></article-meta></front></pmc><affiliations><list></list><tree><noCountry><name sortKey="Chen, Xin Min" sort="Chen, Xin Min" uniqKey="Chen X" first="Xin-Min" last="Chen">Xin-Min Chen</name><name sortKey="Li, Ai Jie" sort="Li, Ai Jie" uniqKey="Li A" first="Ai-Jie" last="Li">Ai-Jie Li</name><name sortKey="Peng, Zhen Zhen" sort="Peng, Zhen Zhen" uniqKey="Peng Z" first="Zhen-Zhen" last="Peng">Zhen-Zhen Peng</name><name sortKey="Wang, Jun" sort="Wang, Jun" uniqKey="Wang J" first="Jun" last="Wang">Jun Wang</name><name sortKey="Xu, Zu Jie" sort="Xu, Zu Jie" uniqKey="Xu Z" first="Zu-Jie" last="Xu">Zu-Jie Xu</name></noCountry></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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