Standard of disocclusion in complete dentures supported by implants without free distal ends: analysis by the finite elements method
Identifieur interne : 001D55 ( Pmc/Curation ); précédent : 001D54; suivant : 001D56Standard of disocclusion in complete dentures supported by implants without free distal ends: analysis by the finite elements method
Auteurs : Gustavo Diniz Greco [Brésil] ; Estevam Barbosa De Las Casas [Brésil] ; Tulimar P. Machado Cornacchia [Brésil] ; Cláudia Silami De Magalhães [Brésil] ; Allyson Nogueira Moreira [Brésil]Source :
- Journal of Applied Oral Science [ 1678-7757 ] ; 2012.
Abstract
The occlusal patterns are key requirements for the clinical success of oral rehabilitation supported by implants. This study compared the stresses generated by the disocclusion in the canine guide occlusion (CGO) and bilateral balanced occlusion (BBO) on the implants and metallic infrastructure of a complete Brånemark protocol-type denture modified with the inclusion of one posterior short implant on each side.
A three-dimensional model simulated a mandible with seven titanium implants as pillars, five of them installed between the mental foramen and the two posterior implants, located at the midpoint of the occlusal surface of the first molar. A load of 15 N with an angle of 45º was applied to a tooth or distributed across three teeth to simulate the CGO or BBO, respectively. The commercial program ABAQUS® was used for the model development, before and after the processing of the data. The results were based on a linear static analysis and were used to compare the magnitude of the equivalent stress for each of the simulations.
The results showed that the disocclusion in CGO generated higher stresses concentrated on the working side in the region of the short implant. In BBO, the stresses were less intense and more evenly distributed on the prosthesis. The maximum stress found in the simulation of the disocclusion in CGO was two times higher than that found in the simulation of the BBO. The point of maximum stress was located in the neck of the short implant on the working side.
Under the conditions of this study, it was concluded that the BBO pattern was more suitable than CGO for the lower complete denture supported by implants without free distal ends.
Url:
DOI: 10.1590/S1678-77572012000100012
PubMed: 22437680
PubMed Central: 3928774
Links toward previous steps (curation, corpus...)
- to stream Pmc, to step Corpus: Pour aller vers cette notice dans l'étape Curation :001D55
Links to Exploration step
PMC:3928774Le document en format XML
<record><TEI><teiHeader><fileDesc><titleStmt><title xml:lang="en">Standard of disocclusion in complete dentures supported by implants
without free distal ends: analysis by the finite elements method</title><author><name sortKey="Greco, Gustavo Diniz" sort="Greco, Gustavo Diniz" uniqKey="Greco G" first="Gustavo Diniz" last="Greco">Gustavo Diniz Greco</name><affiliation wicri:level="1"><nlm:aff id="aff01"> PhD student, Dental School, Federal University of Minas Gerais, Belo Horizonte, MG, Brazil.</nlm:aff><country xml:lang="fr" wicri:curation="lc">Brésil</country><wicri:regionArea> PhD student, Dental School, Federal University of Minas Gerais, Belo Horizonte, MG</wicri:regionArea></affiliation></author><author><name sortKey="De Las Casas, Estevam Barbosa" sort="De Las Casas, Estevam Barbosa" uniqKey="De Las Casas E" first="Estevam Barbosa" last="De Las Casas">Estevam Barbosa De Las Casas</name><affiliation wicri:level="1"><nlm:aff id="aff02"> PhD, Professor, Structural Engineering Department, School of Engineering, Federal University of Minas Gerais, Belo Horizonte, MG, Brazil.</nlm:aff><country xml:lang="fr" wicri:curation="lc">Brésil</country><wicri:regionArea> PhD, Professor, Structural Engineering Department, School of Engineering, Federal University of Minas Gerais, Belo Horizonte, MG</wicri:regionArea></affiliation></author><author><name sortKey="Cornacchia, Tulimar P Machado" sort="Cornacchia, Tulimar P Machado" uniqKey="Cornacchia T" first="Tulimar P. Machado" last="Cornacchia">Tulimar P. Machado Cornacchia</name><affiliation wicri:level="1"><nlm:aff id="aff03"> DDS, MS, PhD, Associate Professor, Department of Restorative Dentistry, School of Dentistry, Federal University of Minas Gerais, Belo Horizonte, MG, Brazil.</nlm:aff><country xml:lang="fr" wicri:curation="lc">Brésil</country><wicri:regionArea> DDS, MS, PhD, Associate Professor, Department of Restorative Dentistry, School of Dentistry, Federal University of Minas Gerais, Belo Horizonte, MG</wicri:regionArea></affiliation></author><author><name sortKey="De Magalhaes, Claudia Silami" sort="De Magalhaes, Claudia Silami" uniqKey="De Magalhaes C" first="Cláudia Silami" last="De Magalhães">Cláudia Silami De Magalhães</name><affiliation wicri:level="1"><nlm:aff id="aff03"> DDS, MS, PhD, Associate Professor, Department of Restorative Dentistry, School of Dentistry, Federal University of Minas Gerais, Belo Horizonte, MG, Brazil.</nlm:aff><country xml:lang="fr" wicri:curation="lc">Brésil</country><wicri:regionArea> DDS, MS, PhD, Associate Professor, Department of Restorative Dentistry, School of Dentistry, Federal University of Minas Gerais, Belo Horizonte, MG</wicri:regionArea></affiliation></author><author><name sortKey="Moreira, Allyson Nogueira" sort="Moreira, Allyson Nogueira" uniqKey="Moreira A" first="Allyson Nogueira" last="Moreira">Allyson Nogueira Moreira</name><affiliation wicri:level="1"><nlm:aff id="aff03"> DDS, MS, PhD, Associate Professor, Department of Restorative Dentistry, School of Dentistry, Federal University of Minas Gerais, Belo Horizonte, MG, Brazil.</nlm:aff><country xml:lang="fr" wicri:curation="lc">Brésil</country><wicri:regionArea> DDS, MS, PhD, Associate Professor, Department of Restorative Dentistry, School of Dentistry, Federal University of Minas Gerais, Belo Horizonte, MG</wicri:regionArea></affiliation></author></titleStmt><publicationStmt><idno type="wicri:source">PMC</idno><idno type="pmid">22437680</idno><idno type="pmc">3928774</idno><idno type="url">http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3928774</idno><idno type="RBID">PMC:3928774</idno><idno type="doi">10.1590/S1678-77572012000100012</idno><date when="2012">2012</date><idno type="wicri:Area/Pmc/Corpus">001D55</idno><idno type="wicri:explorRef" wicri:stream="Pmc" wicri:step="Corpus" wicri:corpus="PMC">001D55</idno><idno type="wicri:Area/Pmc/Curation">001D55</idno><idno type="wicri:explorRef" wicri:stream="Pmc" wicri:step="Curation">001D55</idno></publicationStmt><sourceDesc><biblStruct><analytic><title xml:lang="en" level="a" type="main">Standard of disocclusion in complete dentures supported by implants
without free distal ends: analysis by the finite elements method</title><author><name sortKey="Greco, Gustavo Diniz" sort="Greco, Gustavo Diniz" uniqKey="Greco G" first="Gustavo Diniz" last="Greco">Gustavo Diniz Greco</name><affiliation wicri:level="1"><nlm:aff id="aff01"> PhD student, Dental School, Federal University of Minas Gerais, Belo Horizonte, MG, Brazil.</nlm:aff><country xml:lang="fr" wicri:curation="lc">Brésil</country><wicri:regionArea> PhD student, Dental School, Federal University of Minas Gerais, Belo Horizonte, MG</wicri:regionArea></affiliation></author><author><name sortKey="De Las Casas, Estevam Barbosa" sort="De Las Casas, Estevam Barbosa" uniqKey="De Las Casas E" first="Estevam Barbosa" last="De Las Casas">Estevam Barbosa De Las Casas</name><affiliation wicri:level="1"><nlm:aff id="aff02"> PhD, Professor, Structural Engineering Department, School of Engineering, Federal University of Minas Gerais, Belo Horizonte, MG, Brazil.</nlm:aff><country xml:lang="fr" wicri:curation="lc">Brésil</country><wicri:regionArea> PhD, Professor, Structural Engineering Department, School of Engineering, Federal University of Minas Gerais, Belo Horizonte, MG</wicri:regionArea></affiliation></author><author><name sortKey="Cornacchia, Tulimar P Machado" sort="Cornacchia, Tulimar P Machado" uniqKey="Cornacchia T" first="Tulimar P. Machado" last="Cornacchia">Tulimar P. Machado Cornacchia</name><affiliation wicri:level="1"><nlm:aff id="aff03"> DDS, MS, PhD, Associate Professor, Department of Restorative Dentistry, School of Dentistry, Federal University of Minas Gerais, Belo Horizonte, MG, Brazil.</nlm:aff><country xml:lang="fr" wicri:curation="lc">Brésil</country><wicri:regionArea> DDS, MS, PhD, Associate Professor, Department of Restorative Dentistry, School of Dentistry, Federal University of Minas Gerais, Belo Horizonte, MG</wicri:regionArea></affiliation></author><author><name sortKey="De Magalhaes, Claudia Silami" sort="De Magalhaes, Claudia Silami" uniqKey="De Magalhaes C" first="Cláudia Silami" last="De Magalhães">Cláudia Silami De Magalhães</name><affiliation wicri:level="1"><nlm:aff id="aff03"> DDS, MS, PhD, Associate Professor, Department of Restorative Dentistry, School of Dentistry, Federal University of Minas Gerais, Belo Horizonte, MG, Brazil.</nlm:aff><country xml:lang="fr" wicri:curation="lc">Brésil</country><wicri:regionArea> DDS, MS, PhD, Associate Professor, Department of Restorative Dentistry, School of Dentistry, Federal University of Minas Gerais, Belo Horizonte, MG</wicri:regionArea></affiliation></author><author><name sortKey="Moreira, Allyson Nogueira" sort="Moreira, Allyson Nogueira" uniqKey="Moreira A" first="Allyson Nogueira" last="Moreira">Allyson Nogueira Moreira</name><affiliation wicri:level="1"><nlm:aff id="aff03"> DDS, MS, PhD, Associate Professor, Department of Restorative Dentistry, School of Dentistry, Federal University of Minas Gerais, Belo Horizonte, MG, Brazil.</nlm:aff><country xml:lang="fr" wicri:curation="lc">Brésil</country><wicri:regionArea> DDS, MS, PhD, Associate Professor, Department of Restorative Dentistry, School of Dentistry, Federal University of Minas Gerais, Belo Horizonte, MG</wicri:regionArea></affiliation></author></analytic><series><title level="j">Journal of Applied Oral Science</title><idno type="ISSN">1678-7757</idno><idno type="eISSN">1678-7765</idno><imprint><date when="2012">2012</date></imprint></series></biblStruct></sourceDesc></fileDesc><profileDesc><textClass></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en"><sec><title>Objective</title><p>The occlusal patterns are key requirements for the clinical success of oral
rehabilitation supported by implants. This study compared the stresses generated
by the disocclusion in the canine guide occlusion (CGO) and bilateral balanced
occlusion (BBO) on the implants and metallic infrastructure of a complete
Brånemark protocol-type denture modified with the inclusion of one posterior short
implant on each side. </p></sec><sec><title>Material and Methods</title><p>A three-dimensional model simulated a mandible with seven titanium implants as
pillars, five of them installed between the mental foramen and the two posterior
implants, located at the midpoint of the occlusal surface of the first molar. A
load of 15 N with an angle of 45º was applied to a tooth or distributed across
three teeth to simulate the CGO or BBO, respectively. The commercial program
ABAQUS<sup>®</sup> was used for the model development, before and after the
processing of the data. The results were based on a linear static analysis and
were used to compare the magnitude of the equivalent stress for each of the
simulations. </p></sec><sec><title>Results</title><p>The results showed that the disocclusion in CGO generated higher stresses
concentrated on the working side in the region of the short implant. In BBO, the
stresses were less intense and more evenly distributed on the prosthesis. The
maximum stress found in the simulation of the disocclusion in CGO was two times
higher than that found in the simulation of the BBO. The point of maximum stress
was located in the neck of the short implant on the working side. </p></sec><sec><title>Conclusions</title><p>Under the conditions of this study, it was concluded that the BBO pattern was more
suitable than CGO for the lower complete denture supported by implants without
free distal ends.</p></sec></div></front><back><div1 type="bibliography"><listBibl><biblStruct><analytic><author><name sortKey="Assif, D" uniqKey="Assif D">D Assif</name></author><author><name sortKey="Marshak, B" uniqKey="Marshak B">B Marshak</name></author><author><name sortKey="Horowitz, A" uniqKey="Horowitz A">A Horowitz</name></author></analytic></biblStruct><biblStruct><analytic><author><name sortKey="Br Nemark, Pi" uniqKey="Br Nemark P">PI Brånemark</name></author></analytic></biblStruct><biblStruct><analytic><author><name sortKey="Christensen, C" uniqKey="Christensen C">C Christensen</name></author></analytic></biblStruct><biblStruct><analytic><author><name sortKey="Eskitascioglu, G" uniqKey="Eskitascioglu G">G Eskitascioglu</name></author><author><name sortKey="Usumez, A" uniqKey="Usumez A">A Usumez</name></author><author><name sortKey="Sevimay, M" uniqKey="Sevimay M">M Sevimay</name></author><author><name sortKey="Soykan, E" uniqKey="Soykan E">E Soykan</name></author><author><name sortKey="Unsal, E" uniqKey="Unsal E">E Unsal</name></author></analytic></biblStruct><biblStruct><analytic><author><name sortKey="Gomes De Oliveira, S" uniqKey="Gomes De Oliveira S">S Gomes de Oliveira</name></author><author><name sortKey="Seraidarian, Pi" uniqKey="Seraidarian P">PI Seraidarian</name></author><author><name sortKey="Landre, J Jr" uniqKey="Landre J">J Jr Landre</name></author><author><name sortKey="Oliveira, Dd" uniqKey="Oliveira D">DD Oliveira</name></author><author><name sortKey="Cavalcanti, Bn" uniqKey="Cavalcanti B">BN Cavalcanti</name></author></analytic></biblStruct><biblStruct><analytic><author><name sortKey="Granger, Er" uniqKey="Granger E">ER Granger</name></author></analytic></biblStruct><biblStruct><analytic><author><name sortKey="Greco, Gd" uniqKey="Greco G">GD Greco</name></author><author><name sortKey="Jansen, Wc" uniqKey="Jansen W">WC Jansen</name></author><author><name sortKey="Landre, J" uniqKey="Landre J">J Landre</name></author><author><name sortKey="Seraidarian, Pi" uniqKey="Seraidarian P">PI Seraidarian</name></author></analytic></biblStruct><biblStruct><analytic><author><name sortKey="Greco, Gd" uniqKey="Greco G">GD Greco</name></author><author><name sortKey="Jansen, Wc" uniqKey="Jansen W">WC Jansen</name></author><author><name sortKey="Landre, J" uniqKey="Landre J">J Landre</name></author><author><name sortKey="Seraidarian, Pi" uniqKey="Seraidarian P">PI Seraidarian</name></author></analytic></biblStruct><biblStruct><analytic><author><name sortKey="Guichet, Dl" uniqKey="Guichet D">DL Guichet</name></author><author><name sortKey="Yoshinobu, D" uniqKey="Yoshinobu D">D Yoshinobu</name></author><author><name sortKey="Caputo, Aa" uniqKey="Caputo A">AA Caputo</name></author></analytic></biblStruct><biblStruct><analytic><author><name sortKey="Heartwell, Cm" uniqKey="Heartwell C">CM Heartwell</name></author><author><name sortKey="Rahn, Ao" uniqKey="Rahn A">AO Rahn</name></author></analytic></biblStruct><biblStruct><analytic><author><name sortKey="Himmlova, L" uniqKey="Himmlova L">L Himmlová</name></author><author><name sortKey="Dstalova, T" uniqKey="Dstalova T">T Dstálová</name></author><author><name sortKey="Kacovsk, A" uniqKey="Kacovsk A">A Kácovský</name></author><author><name sortKey="Konvickova, S" uniqKey="Konvickova S">S Konvicková</name></author></analytic></biblStruct><biblStruct><analytic><author><name sortKey="Huang, Hl" uniqKey="Huang H">HL Huang</name></author><author><name sortKey="Fuh, Lj" uniqKey="Fuh L">LJ Fuh</name></author><author><name sortKey="Hsu, Jt" uniqKey="Hsu J">JT Hsu</name></author><author><name sortKey="Tu, Mg" uniqKey="Tu M">MG Tu</name></author><author><name sortKey="Shen, Yw" uniqKey="Shen Y">YW Shen</name></author><author><name sortKey="Wu, Cl" uniqKey="Wu C">CL Wu</name></author></analytic></biblStruct><biblStruct><analytic><author><name sortKey="Jankelson, B" uniqKey="Jankelson B">B Jankelson</name></author><author><name sortKey="Hoffman, Gm" uniqKey="Hoffman G">GM Hoffman</name></author><author><name sortKey="Hendron, Ja" uniqKey="Hendron J">JA Hendron</name></author></analytic></biblStruct><biblStruct><analytic><author><name sortKey="Jensen, Ot" uniqKey="Jensen O">OT Jensen</name></author><author><name sortKey="Adams, Mw" uniqKey="Adams M">MW Adams</name></author></analytic></biblStruct><biblStruct><analytic><author><name sortKey="Korioth, Twp" uniqKey="Korioth T">TWP Korioth</name></author><author><name sortKey="Johann, Ar" uniqKey="Johann A">AR Johann</name></author></analytic></biblStruct><biblStruct><analytic><author><name sortKey="Kr Mer, A" uniqKey="Kr Mer A">A Krämer</name></author><author><name sortKey="Weber, H" uniqKey="Weber H">H Weber</name></author><author><name sortKey="Benzing, U" uniqKey="Benzing U">U Benzing</name></author></analytic></biblStruct><biblStruct><analytic><author><name sortKey="Landa, Js" uniqKey="Landa J">JS Landa</name></author></analytic></biblStruct><biblStruct><analytic><author><name sortKey="Lin, Cl" uniqKey="Lin C">CL Lin</name></author><author><name sortKey="Wang, Jc" uniqKey="Wang J">JC Wang</name></author><author><name sortKey="Kuo, Yc" uniqKey="Kuo Y">YC Kuo</name></author></analytic></biblStruct><biblStruct><analytic><author><name sortKey="Lundgren, D" uniqKey="Lundgren D">D Lundgren</name></author><author><name sortKey="Laurell, L" uniqKey="Laurell L">L Laurell</name></author></analytic></biblStruct><biblStruct><analytic><author><name sortKey="Malo, P" uniqKey="Malo P">P Malo</name></author><author><name sortKey="Araujo Nobre, M" uniqKey="Araujo Nobre M">M Araujo Nobre</name></author><author><name sortKey="Lopes, A" uniqKey="Lopes A">A Lopes</name></author></analytic></biblStruct><biblStruct><analytic><author><name sortKey="Misch, Ce" uniqKey="Misch C">CE Misch</name></author><author><name sortKey="Bidez, Mw" uniqKey="Bidez M">MW Bidez</name></author></analytic></biblStruct><biblStruct><analytic><author><name sortKey="Nagao, M" uniqKey="Nagao M">M Nagao</name></author></analytic></biblStruct><biblStruct><analytic><author><name sortKey="Nairn, Ri" uniqKey="Nairn R">RI Nairn</name></author></analytic></biblStruct><biblStruct><analytic><author><name sortKey="Ogawa, T" uniqKey="Ogawa T">T Ogawa</name></author><author><name sortKey="Ogimoto, T" uniqKey="Ogimoto T">T Ogimoto</name></author><author><name sortKey="Koyano, K" uniqKey="Koyano K">K Koyano</name></author></analytic></biblStruct><biblStruct><analytic><author><name sortKey="Sanna, Am" uniqKey="Sanna A">AM Sanna</name></author><author><name sortKey="Molly, L" uniqKey="Molly L">L Molly</name></author><author><name sortKey="Van Steenberghe, D" uniqKey="Van Steenberghe D">D Van Steenberghe</name></author></analytic></biblStruct><biblStruct><analytic><author><name sortKey="Shaw, Dm" uniqKey="Shaw D">DM Shaw</name></author></analytic></biblStruct><biblStruct><analytic><author><name sortKey="Sheppard, Im" uniqKey="Sheppard I">IM Sheppard</name></author></analytic></biblStruct><biblStruct><analytic><author><name sortKey="White, Sn" uniqKey="White S">SN White</name></author><author><name sortKey="Caputo, Aa" uniqKey="Caputo A">AA Caputo</name></author><author><name sortKey="Anderkvist, T" uniqKey="Anderkvist T">T Anderkvist</name></author></analytic></biblStruct><biblStruct><analytic><author><name sortKey="Woda, A" uniqKey="Woda A">A Woda</name></author><author><name sortKey="Vigneron, P" uniqKey="Vigneron P">P Vigneron</name></author><author><name sortKey="Kay, D" uniqKey="Kay D">D Kay</name></author></analytic></biblStruct><biblStruct><analytic><author><name sortKey="Zampelis, A" uniqKey="Zampelis A">A Zampelis</name></author><author><name sortKey="Rangert, B" uniqKey="Rangert B">B Rangert</name></author><author><name sortKey="Heijl, L" uniqKey="Heijl L">L Heijl</name></author></analytic></biblStruct></listBibl></div1></back></TEI><pmc article-type="case-report"><pmc-dir>properties open_access</pmc-dir>
<front><journal-meta><journal-id journal-id-type="nlm-ta">J Appl Oral Sci</journal-id><journal-id journal-id-type="iso-abbrev">J Appl Oral Sci</journal-id><journal-id journal-id-type="publisher-id">J. Appl. Oral. Sci.</journal-id><journal-title-group><journal-title>Journal of Applied Oral Science</journal-title></journal-title-group><issn pub-type="ppub">1678-7757</issn><issn pub-type="epub">1678-7765</issn><publisher><publisher-name>Faculdade de Odontologia de Bauru da Universidade de São
Paulo</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="pmid">22437680</article-id><article-id pub-id-type="pmc">3928774</article-id><article-id pub-id-type="doi">10.1590/S1678-77572012000100012</article-id><article-categories><subj-group subj-group-type="heading"><subject>Original Articles</subject></subj-group></article-categories><title-group><article-title>Standard of disocclusion in complete dentures supported by implants
without free distal ends: analysis by the finite elements method</article-title></title-group><contrib-group><contrib contrib-type="author"><name><surname>GRECO</surname><given-names>Gustavo Diniz</given-names></name><xref ref-type="aff" rid="aff01">1</xref></contrib><contrib contrib-type="author"><name><surname>de LAS CASAS</surname><given-names>Estevam Barbosa</given-names></name><xref ref-type="aff" rid="aff02">2</xref></contrib><contrib contrib-type="author"><name><surname>CORNACCHIA</surname><given-names>Tulimar P. Machado</given-names></name><xref ref-type="aff" rid="aff03">3</xref></contrib><contrib contrib-type="author"><name><surname>de MAGALHÃES</surname><given-names>Cláudia Silami</given-names></name><xref ref-type="aff" rid="aff03">3</xref></contrib><contrib contrib-type="author"><name><surname>MOREIRA</surname><given-names>Allyson Nogueira</given-names></name><xref ref-type="aff" rid="aff03">3</xref></contrib></contrib-group><aff id="aff01"><label>1</label> PhD student, Dental School, Federal University of Minas Gerais, Belo Horizonte, MG, Brazil.</aff><aff id="aff02"><label>2</label> PhD, Professor, Structural Engineering Department, School of Engineering, Federal University of Minas Gerais, Belo Horizonte, MG, Brazil.</aff><aff id="aff03"><label>3</label> DDS, MS, PhD, Associate Professor, Department of Restorative Dentistry, School of Dentistry, Federal University of Minas Gerais, Belo Horizonte, MG, Brazil.</aff><author-notes><corresp id="c01"><bold>Corresponding address:</bold> Gustavo Diniz Greco - Rua Pedra Bonita, 924 -
Barroca - 30360-390 - Belo Horizonte, MG - Brazil - Phone/fax: 55-31-3334-3673 - Cel:
31-84551945 - e-mail: <email>gustavodgreco@yahoo.com.br</email></corresp></author-notes><pub-date pub-type="ppub"><season>Jan-Feb</season><year>2012</year></pub-date><volume>20</volume><issue>1</issue><fpage>64</fpage><lpage>69</lpage><history><date date-type="received"><day>16</day><month>11</month><year>2006</year></date><date date-type="rev-recd"><day>29</day><month>4</month><year>2010</year></date><date date-type="accepted"><day>26</day><month>10</month><year>2010</year></date></history><permissions><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 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>Objective</title><p>The occlusal patterns are key requirements for the clinical success of oral
rehabilitation supported by implants. This study compared the stresses generated
by the disocclusion in the canine guide occlusion (CGO) and bilateral balanced
occlusion (BBO) on the implants and metallic infrastructure of a complete
Brånemark protocol-type denture modified with the inclusion of one posterior short
implant on each side. </p></sec><sec><title>Material and Methods</title><p>A three-dimensional model simulated a mandible with seven titanium implants as
pillars, five of them installed between the mental foramen and the two posterior
implants, located at the midpoint of the occlusal surface of the first molar. A
load of 15 N with an angle of 45º was applied to a tooth or distributed across
three teeth to simulate the CGO or BBO, respectively. The commercial program
ABAQUS<sup>®</sup> was used for the model development, before and after the
processing of the data. The results were based on a linear static analysis and
were used to compare the magnitude of the equivalent stress for each of the
simulations. </p></sec><sec><title>Results</title><p>The results showed that the disocclusion in CGO generated higher stresses
concentrated on the working side in the region of the short implant. In BBO, the
stresses were less intense and more evenly distributed on the prosthesis. The
maximum stress found in the simulation of the disocclusion in CGO was two times
higher than that found in the simulation of the BBO. The point of maximum stress
was located in the neck of the short implant on the working side. </p></sec><sec><title>Conclusions</title><p>Under the conditions of this study, it was concluded that the BBO pattern was more
suitable than CGO for the lower complete denture supported by implants without
free distal ends.</p></sec></abstract><kwd-group><kwd>Dental occlusion</kwd><kwd>Dental implants</kwd><kwd>Biomechanics</kwd></kwd-group></article-meta></front></pmc></record>Pour manipuler ce document sous Unix (Dilib)
EXPLOR_STEP=$WICRI_ROOT/Wicri/Santé/explor/EdenteV2/Data/Pmc/Curation
HfdSelect -h $EXPLOR_STEP/biblio.hfd -nk 001D55 | SxmlIndent | more
Ou
HfdSelect -h $EXPLOR_AREA/Data/Pmc/Curation/biblio.hfd -nk 001D55 | SxmlIndent | more
Pour mettre un lien sur cette page dans le réseau Wicri
{{Explor lien
|wiki= Wicri/Santé
|area= EdenteV2
|flux= Pmc
|étape= Curation
|type= RBID
|clé= PMC:3928774
|texte= Standard of disocclusion in complete dentures supported by implants
without free distal ends: analysis by the finite elements method
}}
Pour générer des pages wiki
HfdIndexSelect -h $EXPLOR_AREA/Data/Pmc/Curation/RBID.i -Sk "pubmed:22437680" \
| HfdSelect -Kh $EXPLOR_AREA/Data/Pmc/Curation/biblio.hfd \
| NlmPubMed2Wicri -a EdenteV2
| This area was generated with Dilib version V0.6.32. |  |