Three dimensional finite element analysis of the stress distribution around the mandibular posterior implant during non-working movement according to the amount of cantilever
Identifieur interne : 002E99 ( Pmc/Curation ); précédent : 002E98; suivant : 002F00Three dimensional finite element analysis of the stress distribution around the mandibular posterior implant during non-working movement according to the amount of cantilever
Auteurs : Ji-Man Park [Corée du Sud] ; Hyun-Joo Kim [Corée du Sud] ; Eun-Jin Park [Corée du Sud] ; Myung-Rae Kim [Corée du Sud] ; Sun-Jong Kim [Corée du Sud]Source :
- The Journal of Advanced Prosthodontics [ 2005-7806 ] ; 2014.
Abstract
In case of large horizontal discrepancy of alveolar ridge due to severe resorption, cantilevered crown is usually an unavoidable treatment modality. The purpose of this study was to evaluate the clinical criteria for the placement of the aforementioned implant crown.
The mandible model with 2 mm thick cortical bone and cancellous bone was fabricated from CT cross-section image. An external connection type implant was installed and cantilevered crowns with increasing offset of 3, 4, 5, 6, and 7 mm were connected. Vertical load and 30° oblique load of 300 N was applied and stress around bone and implant component was analyzed. A total of 14 cases were modeled and finite element analysis was performed using COSMOS Works (Solid works Inc, USA).
As for the location of the vertical load, the maximum stress generated on the lingual side of the implant became larger according to the increase of offset distance. When the oblique load was applied at 30°, the maximum stress was generated on the buccal side and its magnitude gradually decreased as the distance of the offset load increased to 5 mm. After that point, the magnitude of implant component's stress increased gradually.
The results of this study suggest that for the patient with atrophied alveolar ridge following the loss of molar teeth, von-Mises stress on implant components was the lowest under the 30° oblique load at the 5 mm offset point. Further studies for the various crown height and numbers of occusal points are needed to generalize the conclusion of present study.
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DOI: 10.4047/jap.2014.6.5.361
PubMed: 25352958
PubMed Central: 4211052
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<record><TEI><teiHeader><fileDesc><titleStmt><title xml:lang="en">Three dimensional finite element analysis of the stress distribution around the mandibular posterior implant during non-working movement according to the amount of cantilever</title><author><name sortKey="Park, Ji Man" sort="Park, Ji Man" uniqKey="Park J" first="Ji-Man" last="Park">Ji-Man Park</name><affiliation wicri:level="1"><nlm:aff id="A1">Department of Prosthodontics, Ewha Womans University, Seoul, Korea.</nlm:aff><country xml:lang="fr" wicri:curation="lc">Corée du Sud</country><wicri:regionArea>Department of Prosthodontics, Ewha Womans University, Seoul</wicri:regionArea></affiliation></author><author><name sortKey="Kim, Hyun Joo" sort="Kim, Hyun Joo" uniqKey="Kim H" first="Hyun-Joo" last="Kim">Hyun-Joo Kim</name><affiliation wicri:level="1"><nlm:aff id="A2">Private Practice, Seoul, Korea.</nlm:aff><country xml:lang="fr" wicri:curation="lc">Corée du Sud</country><wicri:regionArea>Private Practice, Seoul</wicri:regionArea></affiliation></author><author><name sortKey="Park, Eun Jin" sort="Park, Eun Jin" uniqKey="Park E" first="Eun-Jin" last="Park">Eun-Jin Park</name><affiliation wicri:level="1"><nlm:aff id="A1">Department of Prosthodontics, Ewha Womans University, Seoul, Korea.</nlm:aff><country xml:lang="fr" wicri:curation="lc">Corée du Sud</country><wicri:regionArea>Department of Prosthodontics, Ewha Womans University, Seoul</wicri:regionArea></affiliation></author><author><name sortKey="Kim, Myung Rae" sort="Kim, Myung Rae" uniqKey="Kim M" first="Myung-Rae" last="Kim">Myung-Rae Kim</name><affiliation wicri:level="1"><nlm:aff id="A3">Department of Oral and Maxillofacial Surgery, Ewha Womans University, Seoul, Korea.</nlm:aff><country xml:lang="fr" wicri:curation="lc">Corée du Sud</country><wicri:regionArea>Department of Oral and Maxillofacial Surgery, Ewha Womans University, Seoul</wicri:regionArea></affiliation></author><author><name sortKey="Kim, Sun Jong" sort="Kim, Sun Jong" uniqKey="Kim S" first="Sun-Jong" last="Kim">Sun-Jong Kim</name><affiliation wicri:level="1"><nlm:aff id="A3">Department of Oral and Maxillofacial Surgery, Ewha Womans University, Seoul, Korea.</nlm:aff><country xml:lang="fr" wicri:curation="lc">Corée du Sud</country><wicri:regionArea>Department of Oral and Maxillofacial Surgery, Ewha Womans University, Seoul</wicri:regionArea></affiliation></author></titleStmt><publicationStmt><idno type="wicri:source">PMC</idno><idno type="pmid">25352958</idno><idno type="pmc">4211052</idno><idno type="url">http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4211052</idno><idno type="RBID">PMC:4211052</idno><idno type="doi">10.4047/jap.2014.6.5.361</idno><date when="2014">2014</date><idno type="wicri:Area/Pmc/Corpus">002E99</idno><idno type="wicri:explorRef" wicri:stream="Pmc" wicri:step="Corpus" wicri:corpus="PMC">002E99</idno><idno type="wicri:Area/Pmc/Curation">002E99</idno><idno type="wicri:explorRef" wicri:stream="Pmc" wicri:step="Curation">002E99</idno></publicationStmt><sourceDesc><biblStruct><analytic><title xml:lang="en" level="a" type="main">Three dimensional finite element analysis of the stress distribution around the mandibular posterior implant during non-working movement according to the amount of cantilever</title><author><name sortKey="Park, Ji Man" sort="Park, Ji Man" uniqKey="Park J" first="Ji-Man" last="Park">Ji-Man Park</name><affiliation wicri:level="1"><nlm:aff id="A1">Department of Prosthodontics, Ewha Womans University, Seoul, Korea.</nlm:aff><country xml:lang="fr" wicri:curation="lc">Corée du Sud</country><wicri:regionArea>Department of Prosthodontics, Ewha Womans University, Seoul</wicri:regionArea></affiliation></author><author><name sortKey="Kim, Hyun Joo" sort="Kim, Hyun Joo" uniqKey="Kim H" first="Hyun-Joo" last="Kim">Hyun-Joo Kim</name><affiliation wicri:level="1"><nlm:aff id="A2">Private Practice, Seoul, Korea.</nlm:aff><country xml:lang="fr" wicri:curation="lc">Corée du Sud</country><wicri:regionArea>Private Practice, Seoul</wicri:regionArea></affiliation></author><author><name sortKey="Park, Eun Jin" sort="Park, Eun Jin" uniqKey="Park E" first="Eun-Jin" last="Park">Eun-Jin Park</name><affiliation wicri:level="1"><nlm:aff id="A1">Department of Prosthodontics, Ewha Womans University, Seoul, Korea.</nlm:aff><country xml:lang="fr" wicri:curation="lc">Corée du Sud</country><wicri:regionArea>Department of Prosthodontics, Ewha Womans University, Seoul</wicri:regionArea></affiliation></author><author><name sortKey="Kim, Myung Rae" sort="Kim, Myung Rae" uniqKey="Kim M" first="Myung-Rae" last="Kim">Myung-Rae Kim</name><affiliation wicri:level="1"><nlm:aff id="A3">Department of Oral and Maxillofacial Surgery, Ewha Womans University, Seoul, Korea.</nlm:aff><country xml:lang="fr" wicri:curation="lc">Corée du Sud</country><wicri:regionArea>Department of Oral and Maxillofacial Surgery, Ewha Womans University, Seoul</wicri:regionArea></affiliation></author><author><name sortKey="Kim, Sun Jong" sort="Kim, Sun Jong" uniqKey="Kim S" first="Sun-Jong" last="Kim">Sun-Jong Kim</name><affiliation wicri:level="1"><nlm:aff id="A3">Department of Oral and Maxillofacial Surgery, Ewha Womans University, Seoul, Korea.</nlm:aff><country xml:lang="fr" wicri:curation="lc">Corée du Sud</country><wicri:regionArea>Department of Oral and Maxillofacial Surgery, Ewha Womans University, Seoul</wicri:regionArea></affiliation></author></analytic><series><title level="j">The Journal of Advanced Prosthodontics</title><idno type="ISSN">2005-7806</idno><idno type="eISSN">2005-7814</idno><imprint><date when="2014">2014</date></imprint></series></biblStruct></sourceDesc></fileDesc><profileDesc><textClass></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en"><sec><title>PURPOSE</title><p>In case of large horizontal discrepancy of alveolar ridge due to severe resorption, cantilevered crown is usually an unavoidable treatment modality. The purpose of this study was to evaluate the clinical criteria for the placement of the aforementioned implant crown.</p></sec><sec><title>MATERIALS AND METHODS</title><p>The mandible model with 2 mm thick cortical bone and cancellous bone was fabricated from CT cross-section image. An external connection type implant was installed and cantilevered crowns with increasing offset of 3, 4, 5, 6, and 7 mm were connected. Vertical load and 30° oblique load of 300 N was applied and stress around bone and implant component was analyzed. A total of 14 cases were modeled and finite element analysis was performed using COSMOS Works (Solid works Inc, USA).</p></sec><sec><title>RESULTS</title><p>As for the location of the vertical load, the maximum stress generated on the lingual side of the implant became larger according to the increase of offset distance. When the oblique load was applied at 30°, the maximum stress was generated on the buccal side and its magnitude gradually decreased as the distance of the offset load increased to 5 mm. After that point, the magnitude of implant component's stress increased gradually.</p></sec><sec><title>CONCLUSION</title><p>The results of this study suggest that for the patient with atrophied alveolar ridge following the loss of molar teeth, von-Mises stress on implant components was the lowest under the 30° oblique load at the 5 mm offset point. Further studies for the various crown height and numbers of occusal points are needed to generalize the conclusion of present study.</p></sec></div></front><back><div1 type="bibliography"><listBibl><biblStruct><analytic><author><name sortKey="Br Nemark, Pi" uniqKey="Br Nemark P">PI Brånemark</name></author></analytic></biblStruct><biblStruct><analytic><author><name sortKey="Adell, R" uniqKey="Adell R">R Adell</name></author><author><name sortKey="Lekholm, U" uniqKey="Lekholm U">U Lekholm</name></author><author><name sortKey="Rockler, B" uniqKey="Rockler B">B Rockler</name></author><author><name sortKey="Br Nemark, Pi" uniqKey="Br Nemark P">PI Brånemark</name></author></analytic></biblStruct><biblStruct><analytic><author><name sortKey="Brunski, Jb" uniqKey="Brunski J">JB Brunski</name></author></analytic></biblStruct><biblStruct><analytic><author><name sortKey="Sones, Ad" uniqKey="Sones A">AD Sones</name></author></analytic></biblStruct><biblStruct><analytic><author><name sortKey="Williams, Kr" uniqKey="Williams K">KR Williams</name></author><author><name sortKey="Watson, Cj" uniqKey="Watson C">CJ Watson</name></author><author><name sortKey="Murphy, Wm" uniqKey="Murphy W">WM Murphy</name></author><author><name sortKey="Scott, J" uniqKey="Scott J">J Scott</name></author><author><name sortKey="Gregory, M" uniqKey="Gregory M">M Gregory</name></author><author><name sortKey="Sinobad, D" uniqKey="Sinobad D">D Sinobad</name></author></analytic></biblStruct><biblStruct><analytic><author><name sortKey="Van Steenberghe, D" uniqKey="Van Steenberghe D">D van Steenberghe</name></author></analytic></biblStruct><biblStruct><analytic><author><name sortKey="Quirynen, M" uniqKey="Quirynen M">M Quirynen</name></author><author><name sortKey="Naert, I" uniqKey="Naert I">I Naert</name></author><author><name sortKey="Van Steenberghe, D" uniqKey="Van Steenberghe D">D van Steenberghe</name></author></analytic></biblStruct><biblStruct><analytic><author><name sortKey="Isidor, F" uniqKey="Isidor F">F Isidor</name></author></analytic></biblStruct><biblStruct><analytic><author><name sortKey="Payant, L" uniqKey="Payant L">L Payant</name></author><author><name sortKey="Williams, Je" uniqKey="Williams J">JE Williams</name></author><author><name sortKey="Zwemer, Jd" uniqKey="Zwemer J">JD Zwemer</name></author></analytic></biblStruct><biblStruct><analytic><author><name sortKey="Lekholm, U" uniqKey="Lekholm U">U Lekholm</name></author><author><name sortKey="Van Steenberghe, D" uniqKey="Van Steenberghe D">D van Steenberghe</name></author><author><name sortKey="Herrmann, I" uniqKey="Herrmann I">I Herrmann</name></author><author><name sortKey="Bolender, C" uniqKey="Bolender C">C Bolender</name></author><author><name sortKey="Folmer, T" uniqKey="Folmer T">T Folmer</name></author><author><name sortKey="Gunne, J" uniqKey="Gunne J">J Gunne</name></author><author><name sortKey="Henry, P" uniqKey="Henry P">P Henry</name></author><author><name sortKey="Higuchi, K" uniqKey="Higuchi K">K Higuchi</name></author><author><name sortKey="Laney, Wr" uniqKey="Laney W">WR Laney</name></author><author><name sortKey="Linden, U" uniqKey="Linden U">U Lindén</name></author></analytic></biblStruct><biblStruct><analytic><author><name sortKey="Adell, R" uniqKey="Adell R">R Adell</name></author><author><name sortKey="Eriksson, B" uniqKey="Eriksson B">B Eriksson</name></author><author><name sortKey="Lekholm, U" uniqKey="Lekholm U">U Lekholm</name></author><author><name sortKey="Br Nemark, Pi" uniqKey="Br Nemark P">PI Brånemark</name></author><author><name sortKey="Jemt, T" uniqKey="Jemt T">T Jemt</name></author></analytic></biblStruct><biblStruct><analytic><author><name sortKey="Tallgren, A" uniqKey="Tallgren A">A Tallgren</name></author></analytic></biblStruct><biblStruct><analytic><author><name sortKey="Atwood, Da" uniqKey="Atwood D">DA Atwood</name></author><author><name sortKey="Coy, Wa" uniqKey="Coy W">WA Coy</name></author></analytic></biblStruct><biblStruct><analytic><author><name sortKey="Hutton, Je" uniqKey="Hutton J">JE Hutton</name></author><author><name sortKey="Heath, Mr" uniqKey="Heath M">MR Heath</name></author><author><name sortKey="Chai, Jy" uniqKey="Chai J">JY Chai</name></author><author><name sortKey="Harnett, J" uniqKey="Harnett J">J Harnett</name></author><author><name sortKey="Jemt, T" uniqKey="Jemt T">T Jemt</name></author><author><name sortKey="Johns, Rb" uniqKey="Johns R">RB Johns</name></author><author><name sortKey="Mckenna, S" uniqKey="Mckenna S">S McKenna</name></author><author><name sortKey="Mcnamara, Dc" uniqKey="Mcnamara D">DC McNamara</name></author><author><name sortKey="Van Steenberghe, D" uniqKey="Van Steenberghe D">D van Steenberghe</name></author><author><name sortKey="Taylor, R" uniqKey="Taylor R">R Taylor</name></author></analytic></biblStruct><biblStruct><analytic><author><name sortKey="Stegaroiu, R" uniqKey="Stegaroiu R">R Stegaroiu</name></author><author><name sortKey="Sato, T" uniqKey="Sato T">T Sato</name></author><author><name sortKey="Kusakari, H" uniqKey="Kusakari H">H Kusakari</name></author><author><name sortKey="Miyakawa, O" uniqKey="Miyakawa O">O Miyakawa</name></author></analytic></biblStruct><biblStruct><analytic><author><name sortKey="Rangert, B" uniqKey="Rangert B">B Rangert</name></author><author><name sortKey="Krogh, Ph" uniqKey="Krogh P">PH Krogh</name></author><author><name sortKey="Langer, B" uniqKey="Langer B">B Langer</name></author><author><name sortKey="Van Roekel, N" uniqKey="Van Roekel N">N Van Roekel</name></author></analytic></biblStruct><biblStruct><analytic><author><name sortKey="Weinstein, Am" uniqKey="Weinstein A">AM Weinstein</name></author><author><name sortKey="Klawitter, Jj" uniqKey="Klawitter J">JJ Klawitter</name></author><author><name sortKey="Anand, Sc" uniqKey="Anand S">SC Anand</name></author><author><name sortKey="Schuessler, R" uniqKey="Schuessler R">R Schuessler</name></author></analytic></biblStruct><biblStruct><analytic><author><name sortKey="Baik, Sh" uniqKey="Baik S">SH Baik</name></author><author><name sortKey="Heo, Sj" uniqKey="Heo S">SJ Heo</name></author></analytic></biblStruct><biblStruct><analytic><author><name sortKey="Kenney, R" uniqKey="Kenney R">R Kenney</name></author><author><name sortKey="Richards, Mw" uniqKey="Richards M">MW Richards</name></author></analytic></biblStruct><biblStruct><analytic><author><name sortKey="Benzing, Ur" uniqKey="Benzing U">UR Benzing</name></author><author><name sortKey="Gall, H" uniqKey="Gall H">H Gall</name></author><author><name sortKey="Weber, H" uniqKey="Weber H">H Weber</name></author></analytic></biblStruct><biblStruct><analytic><author><name sortKey="Lum, Lb" uniqKey="Lum L">LB Lum</name></author><author><name sortKey="Osier, Jf" uniqKey="Osier J">JF Osier</name></author></analytic></biblStruct><biblStruct><analytic><author><name sortKey="Sertgoz, A" uniqKey="Sertgoz A">A Sertgöz</name></author><author><name sortKey="Guvener, S" uniqKey="Guvener S">S Güvener</name></author></analytic></biblStruct><biblStruct><analytic><author><name sortKey="Yokoyama, S" uniqKey="Yokoyama S">S Yokoyama</name></author><author><name sortKey="Wakabayashi, N" uniqKey="Wakabayashi N">N Wakabayashi</name></author><author><name sortKey="Shiota, M" uniqKey="Shiota M">M Shiota</name></author><author><name sortKey="Ohyama, T" uniqKey="Ohyama T">T Ohyama</name></author></analytic></biblStruct><biblStruct><analytic><author><name sortKey="Iplikcio Lu, H" uniqKey="Iplikcio Lu H">H Iplikçioğlu</name></author><author><name sortKey="Akca, K" uniqKey="Akca K">K Akça</name></author></analytic></biblStruct><biblStruct><analytic><author><name sortKey="Lum, Lb" uniqKey="Lum L">LB Lum</name></author><author><name sortKey="Osier, Jf" uniqKey="Osier J">JF Osier</name></author></analytic></biblStruct><biblStruct><analytic><author><name sortKey="Weinberg, La" uniqKey="Weinberg L">LA Weinberg</name></author></analytic></biblStruct><biblStruct><analytic><author><name sortKey="Clelland, Nl" uniqKey="Clelland N">NL Clelland</name></author><author><name sortKey="Lee, Jk" uniqKey="Lee J">JK Lee</name></author><author><name sortKey="Bimbenet, Oc" uniqKey="Bimbenet O">OC Bimbenet</name></author><author><name sortKey="Gilat, A" uniqKey="Gilat A">A Gilat</name></author></analytic></biblStruct><biblStruct><analytic><author><name sortKey="Rangert, B" uniqKey="Rangert B">B Rangert</name></author><author><name sortKey="Jemt, T" uniqKey="Jemt T">T Jemt</name></author><author><name sortKey="Jorneus, L" uniqKey="Jorneus L">L Jörneus</name></author></analytic></biblStruct><biblStruct><analytic><author><name sortKey="Misch, Ce" uniqKey="Misch C">CE Misch</name></author></analytic></biblStruct><biblStruct><analytic><author><name sortKey="Richter, Ej" uniqKey="Richter E">EJ Richter</name></author><author><name sortKey="Orschall, B" uniqKey="Orschall B">B Orschall</name></author><author><name sortKey="Jovanovic, Sa" uniqKey="Jovanovic S">SA Jovanovic</name></author></analytic></biblStruct><biblStruct><analytic><author><name sortKey="Borchers, L" uniqKey="Borchers L">L Borchers</name></author><author><name sortKey="Reichart, P" uniqKey="Reichart P">P Reichart</name></author></analytic></biblStruct><biblStruct><analytic><author><name sortKey="Lavernia, Cj" uniqKey="Lavernia C">CJ Lavernia</name></author><author><name sortKey="Cook, Sd" uniqKey="Cook S">SD Cook</name></author><author><name sortKey="Weinstein, Am" uniqKey="Weinstein A">AM Weinstein</name></author><author><name sortKey="Klawitter, Jj" uniqKey="Klawitter J">JJ Klawitter</name></author></analytic></biblStruct></listBibl></div1></back></TEI><pmc article-type="research-article"><pmc-dir>properties open_access</pmc-dir>
<front><journal-meta><journal-id journal-id-type="nlm-ta">J Adv Prosthodont</journal-id><journal-id journal-id-type="iso-abbrev">J Adv Prosthodont</journal-id><journal-id journal-id-type="publisher-id">JAP</journal-id><journal-title-group><journal-title>The Journal of Advanced Prosthodontics</journal-title></journal-title-group><issn pub-type="ppub">2005-7806</issn><issn pub-type="epub">2005-7814</issn><publisher><publisher-name>The Korean Academy of Prosthodontics</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="pmid">25352958</article-id><article-id pub-id-type="pmc">4211052</article-id><article-id pub-id-type="doi">10.4047/jap.2014.6.5.361</article-id><article-categories><subj-group subj-group-type="heading"><subject>Original Article</subject></subj-group></article-categories><title-group><article-title>Three dimensional finite element analysis of the stress distribution around the mandibular posterior implant during non-working movement according to the amount of cantilever</article-title></title-group><contrib-group><contrib contrib-type="author"><name><surname>Park</surname><given-names>Ji-Man</given-names></name><xref ref-type="aff" rid="A1">1</xref><xref ref-type="author-notes" rid="FN1">+</xref></contrib><contrib contrib-type="author"><name><surname>Kim</surname><given-names>Hyun-Joo</given-names></name><xref ref-type="aff" rid="A2">2</xref><xref ref-type="author-notes" rid="FN1">+</xref></contrib><contrib contrib-type="author"><name><surname>Park</surname><given-names>Eun-Jin</given-names></name><xref ref-type="aff" rid="A1">1</xref></contrib><contrib contrib-type="author"><name><surname>Kim</surname><given-names>Myung-Rae</given-names></name><xref ref-type="aff" rid="A3">3</xref></contrib><contrib contrib-type="author" corresp="yes"><name><surname>Kim</surname><given-names>Sun-Jong</given-names></name><xref ref-type="aff" rid="A3">3</xref></contrib></contrib-group><aff id="A1"><label>1</label>Department of Prosthodontics, Ewha Womans University, Seoul, Korea.</aff><aff id="A2"><label>2</label>Private Practice, Seoul, Korea.</aff><aff id="A3"><label>3</label>Department of Oral and Maxillofacial Surgery, Ewha Womans University, Seoul, Korea.</aff><author-notes><corresp>Corresponding author: Sun-Jong Kim. Department of Implant Dentistry, School of Medicine, Ewha Womans University, 911-1 Mok-5-dong, Yangcheon-gu, Seoul, 158-710, Republic of Korea. Tel. 82 2 2650 5631: <email>sjsj7777@ewha.ac.kr</email></corresp><fn id="FN1" fn-type="equal"><p><sup>+</sup>Ji-Man Park and Hyun-Joo Kim equally contributed to the works described in this manuscrpt.</p></fn></author-notes><pub-date pub-type="ppub"><month>10</month><year>2014</year></pub-date><pub-date pub-type="epub"><day>21</day><month>10</month><year>2014</year></pub-date><volume>6</volume><issue>5</issue><fpage>361</fpage><lpage>371</lpage><history><date date-type="received"><day>27</day><month>1</month><year>2014</year></date><date date-type="rev-recd"><day>10</day><month>6</month><year>2014</year></date><date date-type="accepted"><day>16</day><month>6</month><year>2014</year></date></history><permissions><copyright-statement>© 2014 The Korean Academy of Prosthodontics</copyright-statement><copyright-year>2014</copyright-year><license license-type="open-access" xlink:href="http://creativecommons.org/licenses/by-nc/3.0/"><license-p>This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (<ext-link ext-link-type="uri" xlink:href="http://creativecommons.org/licenses/by-nc/3.0/">http://creativecommons.org/licenses/by-nc/3.0/</ext-link>) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.</license-p></license></permissions><abstract><sec><title>PURPOSE</title><p>In case of large horizontal discrepancy of alveolar ridge due to severe resorption, cantilevered crown is usually an unavoidable treatment modality. The purpose of this study was to evaluate the clinical criteria for the placement of the aforementioned implant crown.</p></sec><sec><title>MATERIALS AND METHODS</title><p>The mandible model with 2 mm thick cortical bone and cancellous bone was fabricated from CT cross-section image. An external connection type implant was installed and cantilevered crowns with increasing offset of 3, 4, 5, 6, and 7 mm were connected. Vertical load and 30° oblique load of 300 N was applied and stress around bone and implant component was analyzed. A total of 14 cases were modeled and finite element analysis was performed using COSMOS Works (Solid works Inc, USA).</p></sec><sec><title>RESULTS</title><p>As for the location of the vertical load, the maximum stress generated on the lingual side of the implant became larger according to the increase of offset distance. When the oblique load was applied at 30°, the maximum stress was generated on the buccal side and its magnitude gradually decreased as the distance of the offset load increased to 5 mm. After that point, the magnitude of implant component's stress increased gradually.</p></sec><sec><title>CONCLUSION</title><p>The results of this study suggest that for the patient with atrophied alveolar ridge following the loss of molar teeth, von-Mises stress on implant components was the lowest under the 30° oblique load at the 5 mm offset point. Further studies for the various crown height and numbers of occusal points are needed to generalize the conclusion of present study.</p></sec></abstract><kwd-group><kwd>Finite element analysis</kwd><kwd>Implant prosthesis</kwd><kwd>Cantilever</kwd><kwd>Stress distribution</kwd></kwd-group><funding-group><award-group><funding-source country="KR">Ewha Womans University</funding-source><award-id>1-2011-1684-001-2</award-id></award-group></funding-group></article-meta></front><floats-group><fig id="F1" orientation="portrait" position="float"><label>Fig. 1</label><caption><p>3D models used in this study. (A) Implant prosthesis with various level of lingual cantilever, (B) FE mesh of external connection type implant system, (C) isometric and sectional view of 3D model.</p></caption><graphic xlink:href="jap-6-361-g001"></graphic></fig><fig id="F2" orientation="portrait" position="float"><label>Fig. 2</label><caption><p>Loading condition and boundary condition. Three points of 100 N each were applied evenly forming the circular area with the diameter of 0.5 mm.</p></caption><graphic xlink:href="jap-6-361-g002"></graphic></fig><fig id="F3" orientation="portrait" position="float"><label>Fig. 3</label><caption><p>Maximum von-Mises stress around cortical bone under vertical load.</p></caption><graphic xlink:href="jap-6-361-g003"></graphic></fig><fig id="F4" orientation="portrait" position="float"><label>Fig. 4</label><caption><p>Distribution of von-Mises stress around cortical bone under vertical load.</p></caption><graphic xlink:href="jap-6-361-g004"></graphic></fig><fig id="F5" orientation="portrait" position="float"><label>Fig. 5</label><caption><p>Maximum von-Mises stress around implant components under vertical load.</p></caption><graphic xlink:href="jap-6-361-g005"></graphic></fig><fig id="F6" orientation="portrait" position="float"><label>Fig. 6</label><caption><p>Distribution of the von-Mises stress around implant components under vertical load. (A) Implant fixture, (B) abutment, (C) screw.</p></caption><graphic xlink:href="jap-6-361-g006"></graphic></fig><fig id="F7" orientation="portrait" position="float"><label>Fig. 7</label><caption><p>Maximum von-Mises stress around cortical bone under oblique load.</p></caption><graphic xlink:href="jap-6-361-g007"></graphic></fig><fig id="F8" orientation="portrait" position="float"><label>Fig. 8</label><caption><p>Distribution of von-Mises stress around cortical bone under oblique load.</p></caption><graphic xlink:href="jap-6-361-g008"></graphic></fig><fig id="F9" orientation="portrait" position="float"><label>Fig. 9</label><caption><p>Maximum von-Mises stress around implant components under oblique load. In case of model o4, o5, and o6, the stress decrement at the implant was larger than that at the abutment and screw. And the model with the lingual cantilever of 5 mm (model o5) was most affected.</p></caption><graphic xlink:href="jap-6-361-g009"></graphic></fig><fig id="F10" orientation="portrait" position="float"><label>Fig. 10</label><caption><p>Distribution of the von-Mises stress around implant components under oblique load. (A) Implant fixture, (B) abutment, (C) screw.</p></caption><graphic xlink:href="jap-6-361-g010"></graphic></fig><table-wrap id="T1" orientation="portrait" position="float"><label>Table 1</label><caption><p>Experimental design in this study</p></caption><graphic xlink:href="jap-6-361-i001"></graphic></table-wrap><table-wrap id="T2" orientation="portrait" position="float"><label>Table 2</label><caption><p>Number of elements and nodes used in this study</p></caption><graphic xlink:href="jap-6-361-i002"></graphic></table-wrap><table-wrap id="T3" orientation="portrait" position="float"><label>Table 3</label><caption><p>Material properties in this study</p></caption><graphic xlink:href="jap-6-361-i003"></graphic></table-wrap><table-wrap id="T4" orientation="portrait" position="float"><label>Table 4</label><caption><p>Summary of the maximum von-Mises stress in this study (MPa)</p></caption><graphic xlink:href="jap-6-361-i004"></graphic></table-wrap></floats-group></pmc></record>Pour manipuler ce document sous Unix (Dilib)
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