Regular and Platform Switching: Bone Stress Analysis Varying Implant Type
Identifieur interne : 000034 ( Istex/Corpus ); précédent : 000033; suivant : 000035Regular and Platform Switching: Bone Stress Analysis Varying Implant Type
Auteurs : Nália Cecília Gurgel-Juarez ; Erika Oliveira De Almeida ; Eduardo Passos Rocha ; Amílcar Chagas Freitas Júnior ; Rodolfo Bruniera Anchieta ; Luis Carlos Merçon De Vargas ; Sidney Kina ; Fabiana Mantovani Gomes FrançaSource :
- Journal of Prosthodontics [ 1059-941X ] ; 2012-04.
English descriptors
- KwdEn :
- Abutment, American college, Aracatuba school, Berglundh, Bone loss, Canine mandible, Clin, Clin periodontol, Cortical, Cortical bone, Crestal, Crestal bone changes, Dent, Dental implants, Dentistry, Elastic strain, Experimental study, External connection, External hexagon, External hexagon implant, External hexagon implants, Hexagon, Highest stress, Highest stress values, Implant, Implant dent, Implant diameter, Internal hexagon, Internal hexagon implant, Internal hexagon implants, Less stress, Maxillofac, Mises stress, Nite, Nite element analysis, Oblique loading, Oral maxillofac implants, Palatal surface, Partial dentures, Periodontol, Principal stress, Prosthet, Prosthet dent, Prosthodontics, Prosthodontist, Radiographic evaluation, Regular model, Regular models, Stress distribution, Titanium implants, Trabecular, Trabecular bone.
- Teeft :
- Abutment, American college, Aracatuba school, Berglundh, Bone loss, Canine mandible, Clin, Clin periodontol, Cortical, Cortical bone, Crestal, Crestal bone changes, Dent, Dental implants, Dentistry, Elastic strain, Experimental study, External connection, External hexagon, External hexagon implant, External hexagon implants, Hexagon, Highest stress, Highest stress values, Implant, Implant dent, Implant diameter, Internal hexagon, Internal hexagon implant, Internal hexagon implants, Less stress, Maxillofac, Mises stress, Nite, Nite element analysis, Oblique loading, Oral maxillofac implants, Palatal surface, Partial dentures, Periodontol, Principal stress, Prosthet, Prosthet dent, Prosthodontics, Prosthodontist, Radiographic evaluation, Regular model, Regular models, Stress distribution, Titanium implants, Trabecular, Trabecular bone.
Abstract
Purpose: This study aimed to evaluate stress distribution on peri‐implant bone simulating the influence of platform switching in external and internal hexagon implants using three‐dimensional finite element analysis.
Url:
DOI: 10.1111/j.1532-849X.2011.00801.x
Links to Exploration step
ISTEX:008F222659446AA04DF42C3D2965AEAADE9F21C1Le document en format XML
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dentures</term><term>Periodontol</term><term>Principal stress</term><term>Prosthet</term><term>Prosthet dent</term><term>Prosthodontics</term><term>Prosthodontist</term><term>Radiographic evaluation</term><term>Regular model</term><term>Regular models</term><term>Stress distribution</term><term>Titanium implants</term><term>Trabecular</term><term>Trabecular bone</term></keywords><keywords scheme="Teeft" xml:lang="en"><term>Abutment</term><term>American college</term><term>Aracatuba school</term><term>Berglundh</term><term>Bone loss</term><term>Canine mandible</term><term>Clin</term><term>Clin periodontol</term><term>Cortical</term><term>Cortical bone</term><term>Crestal</term><term>Crestal bone changes</term><term>Dent</term><term>Dental implants</term><term>Dentistry</term><term>Elastic strain</term><term>Experimental study</term><term>External connection</term><term>External hexagon</term><term>External hexagon implant</term><term>External hexagon implants</term><term>Hexagon</term><term>Highest stress</term><term>Highest stress values</term><term>Implant</term><term>Implant dent</term><term>Implant diameter</term><term>Internal hexagon</term><term>Internal hexagon implant</term><term>Internal hexagon implants</term><term>Less stress</term><term>Maxillofac</term><term>Mises stress</term><term>Nite</term><term>Nite element analysis</term><term>Oblique loading</term><term>Oral maxillofac implants</term><term>Palatal surface</term><term>Partial dentures</term><term>Periodontol</term><term>Principal stress</term><term>Prosthet</term><term>Prosthet dent</term><term>Prosthodontics</term><term>Prosthodontist</term><term>Radiographic evaluation</term><term>Regular model</term><term>Regular models</term><term>Stress distribution</term><term>Titanium implants</term><term>Trabecular</term><term>Trabecular bone</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract">Purpose: This study aimed to evaluate stress distribution on peri‐implant bone simulating the influence of platform switching in external and internal hexagon implants using three‐dimensional finite element analysis.</div></front></TEI><istex><corpusName>wiley</corpusName><keywords><teeft><json:string>implant</json:string><json:string>abutment</json:string><json:string>trabecular</json:string><json:string>hexagon</json:string><json:string>nite</json:string><json:string>trabecular bone</json:string><json:string>clin</json:string><json:string>cortical bone</json:string><json:string>maxillofac</json:string><json:string>nite element analysis</json:string><json:string>periodontol</json:string><json:string>prosthodontics</json:string><json:string>stress distribution</json:string><json:string>external hexagon implants</json:string><json:string>crestal</json:string><json:string>oral maxillofac implants</json:string><json:string>prosthodontist</json:string><json:string>berglundh</json:string><json:string>bone 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Estadual Paulista, Araçatuba, Brazil</json:string><json:string>Visiting Scholar, Department of Biomaterials and Biomimetics, New York University, College of Dentistry, New York, NY</json:string><json:string>E-mail: erikaunesp@gmail.com</json:string></affiliations></json:item><json:item><name>Eduardo Passos Rocha DDS, MS, PhD</name><affiliations><json:string>Assistant Professor, Department of Dental Materials and Prosthodontics, Araçatuba School of Dentistry, UNESP – Univ. Estadual Paulista, Araçatuba, Brazil</json:string></affiliations></json:item><json:item><name>Amílcar Chagas Freitas Júnior DDS, MS</name><affiliations><json:string>Associate Professor, Postgraduate Program in Dentistry, Potiguar University, School of Dentistry – UnP, Natal, Brazil</json:string></affiliations></json:item><json:item><name>Rodolfo Bruniera Anchieta DDS, MS</name><affiliations><json:string>PhD Student in Prosthodontics, Department of Dental Materials and Prosthodontics, Araçatuba School of Dentistry, UNESP – Univ. Estadual Paulista, Araçatuba, Brazil</json:string></affiliations></json:item><json:item><name>Luis Carlos Merçon de Vargas DDS</name><affiliations><json:string>MSc Student in Prosthodontics, Postgraduate Center, São Leopoldo Mandic School of Dentistry, Campinas, Brazil</json:string></affiliations></json:item><json:item><name>Sidney Kina DDS, MS</name><affiliations><json:string>Assistant Professor, Postgraduate Center, São Leopoldo Mandic School of Dentistry, Campinas, Brazil</json:string></affiliations></json:item><json:item><name>Fabiana Mantovani Gomes França DDS, MS, PhD</name><affiliations><json:string>Assistant Professor, Postgraduate Center, São Leopoldo Mandic School of Dentistry, Campinas, Brazil</json:string></affiliations></json:item></author><subject><json:item><lang><json:string>eng</json:string></lang><value>Implant dentistry</value></json:item><json:item><lang><json:string>eng</json:string></lang><value>finite element analysis</value></json:item><json:item><lang><json:string>eng</json:string></lang><value>bone</value></json:item><json:item><lang><json:string>eng</json:string></lang><value>stress</value></json:item><json:item><lang><json:string>eng</json:string></lang><value>loading</value></json:item></subject><articleId><json:string>JOPR801</json:string></articleId><arkIstex>ark:/67375/WNG-SLQDBS1K-P</arkIstex><language><json:string>eng</json:string></language><originalGenre><json:string>article</json:string></originalGenre><abstract>Purpose: This study aimed to evaluate stress distribution on peri‐implant bone simulating the influence of platform switching in external and internal hexagon implants using three‐dimensional finite element analysis.</abstract><qualityIndicators><score>6.458</score><pdfWordCount>4122</pdfWordCount><pdfCharCount>26638</pdfCharCount><pdfVersion>1.3</pdfVersion><pdfPageCount>7</pdfPageCount><pdfPageSize>595.274 x 782.286 pts</pdfPageSize><refBibsNative>true</refBibsNative><abstractWordCount>28</abstractWordCount><abstractCharCount>216</abstractCharCount><keywordCount>5</keywordCount></qualityIndicators><title>Regular and Platform Switching: Bone Stress Analysis Varying Implant Type</title><pmid><json:string>22372756</json:string></pmid><genre><json:string>article</json:string></genre><host><title>Journal of Prosthodontics</title><language><json:string>unknown</json:string></language><doi><json:string>10.1111/(ISSN)1532-849X</json:string></doi><issn><json:string>1059-941X</json:string></issn><eissn><json:string>1532-849X</json:string></eissn><publisherId><json:string>JOPR</json:string></publisherId><volume>21</volume><issue>3</issue><pages><first>160</first><last>166</last><total>7</total></pages><genre><json:string>journal</json:string></genre></host><namedEntities><unitex><date><json:string>2012</json:string></date><geogName></geogName><orgName><json:string>Department of Biomaterials</json:string><json:string>UNESP</json:string><json:string>Paulo State University</json:string><json:string>Human Research Ethics Committee</json:string><json:string>Swanson Analysis Inc., Houston</json:string><json:string>New York University</json:string><json:string>American College of Prosthodontists</json:string><json:string>Potiguar University</json:string><json:string>Department of Dental Materials and Prosthodontics</json:string><json:string>Postgraduate Center</json:string></orgName><orgName_funder></orgName_funder><orgName_provider></orgName_provider><persName><json:string>Professor</json:string><json:string>Fabiana Mantovani</json:string><json:string>Luis Carlos</json:string><json:string>Rodolfo Bruniera</json:string><json:string>Sidney Kina</json:string></persName><placeName><json:string>NY</json:string><json:string>Sao Leopoldo</json:string><json:string>Brazil</json:string><json:string>Liechtenstein</json:string><json:string>York</json:string><json:string>Leuven</json:string><json:string>Campinas</json:string><json:string>Belgium</json:string><json:string>Schaan</json:string></placeName><ref_url></ref_url><ref_bibl><json:string>Ding et al</json:string><json:string>Gurgel-Juarez et al</json:string><json:string>Quaresma et al</json:string><json:string>Okumura et al.</json:string><json:string>Baggi et al</json:string><json:string>Maeda et al</json:string><json:string>Okumura et al</json:string><json:string>Rodriguez-Ciurana et al</json:string><json:string>Ciurana et al</json:string><json:string>Holmgren et al</json:string></ref_bibl><bibl></bibl></unitex></namedEntities><ark><json:string>ark:/67375/WNG-SLQDBS1K-P</json:string></ark><categories><wos><json:string>1 - science</json:string><json:string>2 - dentistry, oral surgery & medicine</json:string></wos><scienceMetrix><json:string>1 - health sciences</json:string><json:string>2 - clinical medicine</json:string><json:string>3 - dentistry</json:string></scienceMetrix><scopus><json:string>1 - Health Sciences</json:string><json:string>2 - Dentistry</json:string><json:string>3 - General Dentistry</json:string></scopus></categories><publicationDate>2012</publicationDate><copyrightDate>2012</copyrightDate><doi><json:string>10.1111/j.1532-849X.2011.00801.x</json:string></doi><id>008F222659446AA04DF42C3D2965AEAADE9F21C1</id><score>1</score><fulltext><json:item><extension>pdf</extension><original>true</original><mimetype>application/pdf</mimetype><uri>https://api.istex.fr/document/008F222659446AA04DF42C3D2965AEAADE9F21C1/fulltext/pdf</uri></json:item><json:item><extension>zip</extension><original>false</original><mimetype>application/zip</mimetype><uri>https://api.istex.fr/document/008F222659446AA04DF42C3D2965AEAADE9F21C1/fulltext/zip</uri></json:item><istex:fulltextTEI uri="https://api.istex.fr/document/008F222659446AA04DF42C3D2965AEAADE9F21C1/fulltext/tei"><teiHeader><fileDesc><titleStmt><title level="a" type="main">Regular and Platform Switching: Bone Stress Analysis Varying Implant Type</title></titleStmt><publicationStmt><authority>ISTEX</authority><publisher>Blackwell Publishing Inc</publisher><pubPlace>Malden, USA</pubPlace><availability><licence>© 2012 by the American College of Prosthodontists</licence></availability><date type="published" when="2012-04"></date></publicationStmt><notesStmt><note type="content-type" subtype="article" source="article" scheme="https://content-type.data.istex.fr/ark:/67375/XTP-6N5SZHKN-D">article</note><note type="publication-type" subtype="journal" scheme="https://publication-type.data.istex.fr/ark:/67375/JMC-0GLKJH51-B">journal</note></notesStmt><sourceDesc><biblStruct type="article"><analytic><title level="a" type="main">Regular and Platform Switching: Bone Stress Analysis Varying Implant Type</title><title level="a" type="short">Regular and Platform Switching</title><author xml:id="author-0000"><persName><forename type="first">Nália Cecília</forename><surname>Gurgel‐Juarez</surname><roleName type="degree">DDS</roleName></persName><affiliation>MSc Student in Prosthodontics, Postgraduate Center, São Leopoldo Mandic School of Dentistry, Campinas, Brazil<address><country key="BR"></country></address></affiliation></author><author xml:id="author-0001" role="corresp"><persName><forename type="first">Erika Oliveira</forename><surname>de Almeida</surname><roleName type="degree">DDS, MS</roleName></persName><affiliation>PhD Student in Prosthodontics, Department of Dental Materials and Prosthodontics, Araçatuba School of Dentistry, UNESP – Univ. Estadual Paulista, Araçatuba, Brazil<address><country key="BR"></country></address></affiliation><affiliation>Visiting Scholar, Department of Biomaterials and Biomimetics, New York University, College of Dentistry, New York, NY<address><country key="US"></country></address></affiliation><affiliation>Correspondence Erika Oliveira de Almeida, E 345 24th St., Rm 804s, New York, NY 10010. E‐mail: erikaunesp@gmail.com</affiliation></author><author xml:id="author-0002"><persName><forename type="first">Eduardo Passos</forename><surname>Rocha</surname><roleName type="degree">DDS, MS, PhD</roleName></persName><affiliation>Assistant Professor, Department of Dental Materials and Prosthodontics, Araçatuba School of Dentistry, UNESP – Univ. Estadual Paulista, Araçatuba, Brazil<address><country key="BR"></country></address></affiliation></author><author xml:id="author-0003"><persName><forename type="first">Amílcar Chagas Freitas</forename><surname>Júnior</surname><roleName type="degree">DDS, MS</roleName></persName><affiliation>Associate Professor, Postgraduate Program in Dentistry, Potiguar University, School of Dentistry – UnP, Natal, Brazil<address><country key="BR"></country></address></affiliation></author><author xml:id="author-0004"><persName><forename type="first">Rodolfo Bruniera</forename><surname>Anchieta</surname><roleName type="degree">DDS, MS</roleName></persName><affiliation>PhD Student in Prosthodontics, Department of Dental Materials and Prosthodontics, Araçatuba School of Dentistry, UNESP – Univ. Estadual Paulista, Araçatuba, Brazil<address><country key="BR"></country></address></affiliation></author><author xml:id="author-0005"><persName><forename type="first">Luis Carlos Merçon</forename><surname>de Vargas</surname><roleName type="degree">DDS</roleName></persName><affiliation>MSc Student in Prosthodontics, Postgraduate Center, São Leopoldo Mandic School of Dentistry, Campinas, Brazil<address><country key="BR"></country></address></affiliation></author><author xml:id="author-0006"><persName><forename type="first">Sidney</forename><surname>Kina</surname><roleName type="degree">DDS, MS</roleName></persName><affiliation>Assistant Professor, Postgraduate Center, São Leopoldo Mandic School of Dentistry, Campinas, Brazil<address><country key="BR"></country></address></affiliation></author><author xml:id="author-0007"><persName><forename type="first">Fabiana Mantovani Gomes</forename><surname>França</surname><roleName type="degree">DDS, MS, PhD</roleName></persName><affiliation>Assistant Professor, Postgraduate Center, São Leopoldo Mandic School of Dentistry, Campinas, Brazil<address><country key="BR"></country></address></affiliation></author><idno type="istex">008F222659446AA04DF42C3D2965AEAADE9F21C1</idno><idno type="ark">ark:/67375/WNG-SLQDBS1K-P</idno><idno type="DOI">10.1111/j.1532-849X.2011.00801.x</idno><idno type="unit">JOPR801</idno><idno type="toTypesetVersion">file:JOPR.JOPR801.pdf</idno></analytic><monogr><title level="j" type="main">Journal of Prosthodontics</title><title level="j" type="alt">JOURNAL OF PROSTHODONTICS</title><idno type="pISSN">1059-941X</idno><idno type="eISSN">1532-849X</idno><idno type="book-DOI">10.1111/(ISSN)1532-849X</idno><idno type="book-part-DOI">10.1111/jopr.2012.21.issue-3</idno><idno type="product">JOPR</idno><idno type="publisherDivision">ST</idno><imprint><biblScope unit="vol">21</biblScope><biblScope unit="issue">3</biblScope><biblScope unit="page" from="160">160</biblScope><biblScope unit="page" to="166">166</biblScope><biblScope unit="page-count">7</biblScope><publisher>Blackwell Publishing Inc</publisher><pubPlace>Malden, USA</pubPlace><date type="published" when="2012-04"></date></imprint></monogr></biblStruct></sourceDesc></fileDesc><profileDesc><abstract xml:lang="en" style="main"><head>Abstract</head><p><hi rend="bold">Purpose:</hi> This study aimed to evaluate stress distribution on peri‐implant bone simulating the influence of platform switching in external and internal hexagon implants using three‐dimensional finite element analysis.</p><p><hi rend="bold">Materials and Methods:</hi> Four mathematical models of a central incisor supported by an implant were created: External Regular model (ER) with 5.0 mm × 11.5 mm external hexagon implant and 5.0 mm abutment (0% abutment shifting), Internal Regular model (IR) with 4.5 mm × 11.5 mm internal hexagon implant and 4.5 mm abutment (0% abutment shifting), External Switching model (ES) with 5.0 mm × 11.5 mm external hexagon implant and 4.1 mm abutment (18% abutment shifting), and Internal Switching model (IS) with 4.5 mm × 11.5 mm internal hexagon implant and 3.8 mm abutment (15% abutment shifting). The models were created by SolidWorks software. The numerical analysis was performed using ANSYS Workbench. Oblique forces (100 N) were applied to the palatal surface of the central incisor. The maximum (σ<hi rend="subscript">max</hi>) and minimum (σ<hi rend="subscript">min</hi>) principal stress, equivalent von Mises stress (σ<hi rend="subscript">vM</hi>), and maximum principal elastic strain (ε<hi rend="subscript">max</hi>) values were evaluated for the cortical and trabecular bone.</p><p><hi rend="bold">Results:</hi> For cortical bone, the highest stress values (σ<hi rend="subscript">max</hi> and σ<hi rend="subscript">vm</hi>) (MPa) were observed in IR (87.4 and 82.3), followed by IS (83.3 and 72.4), ER (82 and 65.1), and ES (56.7 and 51.6). For ε<hi rend="subscript">max</hi>, IR showed the highest stress (5.46e‐003), followed by IS (5.23e‐003), ER (5.22e‐003), and ES (3.67e‐003). For the trabecular bone, the highest stress values (σ<hi rend="subscript">max</hi>) (MPa) were observed in ER (12.5), followed by IS (12), ES (11.9), and IR (4.95). For σ<hi rend="subscript">vM</hi>, the highest stress values (MPa) were observed in IS (9.65), followed by ER (9.3), ES (8.61), and IR (5.62). For ε<hi rend="subscript">max</hi>, ER showed the highest stress (5.5e‐003), followed by ES (5.43e‐003), IS (3.75e‐003), and IR (3.15e‐003).</p><p><hi rend="bold">Conclusion:</hi> The influence of platform switching was more evident for cortical bone than for trabecular bone, mainly for the external hexagon implants. In addition, the external hexagon implants showed less stress concentration in the regular and switching platforms in comparison to the internal hexagon implants.</p></abstract><textClass><keywords xml:lang="en"><term xml:id="k1">Implant dentistry</term><term xml:id="k2">finite element analysis</term><term xml:id="k3">bone</term><term xml:id="k4">stress</term><term xml:id="k5">loading</term></keywords><keywords rend="tocHeading1"><term>Original Manuscript</term></keywords></textClass><langUsage><language ident="en"></language></langUsage></profileDesc></teiHeader></istex:fulltextTEI><json:item><extension>txt</extension><original>false</original><mimetype>text/plain</mimetype><uri>https://api.istex.fr/document/008F222659446AA04DF42C3D2965AEAADE9F21C1/fulltext/txt</uri></json:item></fulltext><metadata><istex:metadataXml wicri:clean="Wiley, elements deleted: body"><istex:xmlDeclaration>version="1.0" encoding="UTF-8" standalone="yes"</istex:xmlDeclaration><istex:document><component version="2.0" type="serialArticle" xml:lang="en"><header><publicationMeta level="product"><publisherInfo><publisherName>Blackwell Publishing Inc</publisherName><publisherLoc>Malden, USA</publisherLoc></publisherInfo><doi origin="wiley" registered="yes">10.1111/(ISSN)1532-849X</doi><issn type="print">1059-941X</issn><issn type="electronic">1532-849X</issn><idGroup><id type="product" value="JOPR"></id><id type="publisherDivision" value="ST"></id></idGroup><titleGroup><title type="main" sort="JOURNAL OF PROSTHODONTICS">Journal of Prosthodontics</title><title type="subtitle">Implant, Esthetic and Reconstructive Dentistry</title></titleGroup></publicationMeta><publicationMeta level="part" position="04103"><doi origin="wiley">10.1111/jopr.2012.21.issue-3</doi><numberingGroup><numbering type="journalVolume" number="21">21</numbering><numbering type="journalIssue" number="3">3</numbering></numberingGroup><coverDate startDate="2012-04">April 2012</coverDate></publicationMeta><publicationMeta level="unit" type="article" position="3" status="forIssue"><doi origin="wiley">10.1111/j.1532-849X.2011.00801.x</doi><idGroup><id type="unit" value="JOPR801"></id></idGroup><countGroup><count type="pageTotal" number="7"></count></countGroup><titleGroup><title type="tocHeading1">Original Manuscript</title></titleGroup><copyright>© 2012 by the American College of Prosthodontists</copyright><eventGroup><event type="xmlConverted" agent="Converter:BPG_TO_WML3G version:3.1.3 standalone mode:FullText" date="2012-04-11"></event><event type="publishedOnlineEarlyUnpaginated" date="2012-02-28"></event><event type="firstOnline" date="2012-02-28"></event><event type="publishedOnlineFinalForm" date="2012-04-11"></event><event type="xmlConverted" agent="Converter:WILEY_ML3G_TO_WILEY_ML3GV2 version:3.8.8" date="2014-01-31"></event><event type="xmlConverted" agent="Converter:WML3G_To_WML3G version:4.3.4 mode:FullText" date="2015-02-25"></event></eventGroup><numberingGroup><numbering type="pageFirst" number="160">160</numbering><numbering type="pageLast" number="166">166</numbering></numberingGroup><correspondenceTo><b>Correspondence</b> Erika Oliveira de Almeida, E 345 24th St., Rm 804s, New York, NY 10010. E‐mail: <email>erikaunesp@gmail.com</email></correspondenceTo><linkGroup><link type="toTypesetVersion" href="file:JOPR.JOPR801.pdf"></link></linkGroup></publicationMeta><contentMeta><unparsedEditorialHistory>Accepted April 18, 2011</unparsedEditorialHistory><countGroup><count type="figureTotal" number="5"></count><count type="tableTotal" number="4"></count><count type="formulaTotal" number="0"></count><count type="referenceTotal" number="62"></count><count type="linksCrossRef" number="70"></count></countGroup><titleGroup><title type="main">Regular and Platform Switching: Bone Stress Analysis Varying Implant Type</title><title type="shortAuthors">Gurgel‐Juarez <i>et al</i></title><title type="short">Regular and Platform Switching</title></titleGroup><creators><creator creatorRole="author" xml:id="cr1" affiliationRef="#a1"><personName><givenNames>Nália Cecília</givenNames><familyName>Gurgel‐Juarez</familyName><degrees>DDS</degrees></personName></creator><creator creatorRole="author" xml:id="cr2" affiliationRef="#a2 #a3" corresponding="yes"><personName><givenNames>Erika Oliveira</givenNames><familyName>de Almeida</familyName><degrees>DDS, MS</degrees></personName></creator><creator creatorRole="author" xml:id="cr3" affiliationRef="#a4"><personName><givenNames>Eduardo Passos</givenNames><familyName>Rocha</familyName><degrees>DDS, MS, PhD</degrees></personName></creator><creator creatorRole="author" xml:id="cr4" affiliationRef="#a5"><personName><givenNames>Amílcar Chagas Freitas</givenNames><familyName>Júnior</familyName><degrees>DDS, MS</degrees></personName></creator><creator creatorRole="author" xml:id="cr5" affiliationRef="#a2"><personName><givenNames>Rodolfo Bruniera</givenNames><familyName>Anchieta</familyName><degrees>DDS, MS</degrees></personName></creator><creator creatorRole="author" xml:id="cr6" affiliationRef="#a1"><personName><givenNames>Luis Carlos Merçon</givenNames><familyName>de Vargas</familyName><degrees>DDS</degrees></personName></creator><creator creatorRole="author" xml:id="cr7" affiliationRef="#a6"><personName><givenNames>Sidney</givenNames><familyName>Kina</familyName><degrees>DDS, MS</degrees></personName></creator><creator creatorRole="author" xml:id="cr8" affiliationRef="#a6"><personName><givenNames>Fabiana Mantovani Gomes</givenNames><familyName>França</familyName><degrees>DDS, MS, PhD</degrees></personName></creator></creators><affiliationGroup><affiliation xml:id="a1" countryCode="BR"><unparsedAffiliation>MSc Student in Prosthodontics, Postgraduate Center, São Leopoldo Mandic School of Dentistry, Campinas, Brazil</unparsedAffiliation></affiliation><affiliation xml:id="a2" countryCode="BR"><unparsedAffiliation>PhD Student in Prosthodontics, Department of Dental Materials and Prosthodontics, Araçatuba School of Dentistry, UNESP – Univ. Estadual Paulista, Araçatuba, Brazil</unparsedAffiliation></affiliation><affiliation xml:id="a3" countryCode="US"><unparsedAffiliation>Visiting Scholar, Department of Biomaterials and Biomimetics, New York University, College of Dentistry, New York, NY</unparsedAffiliation></affiliation><affiliation xml:id="a4" countryCode="BR"><unparsedAffiliation>Assistant Professor, Department of Dental Materials and Prosthodontics, Araçatuba School of Dentistry, UNESP – Univ. Estadual Paulista, Araçatuba, Brazil</unparsedAffiliation></affiliation><affiliation xml:id="a5" countryCode="BR"><unparsedAffiliation>Associate Professor, Postgraduate Program in Dentistry, Potiguar University, School of Dentistry – UnP, Natal, Brazil</unparsedAffiliation></affiliation><affiliation xml:id="a6" countryCode="BR"><unparsedAffiliation>Assistant Professor, Postgraduate Center, São Leopoldo Mandic School of Dentistry, Campinas, Brazil</unparsedAffiliation></affiliation></affiliationGroup><keywordGroup xml:lang="en"><keyword xml:id="k1">Implant dentistry</keyword><keyword xml:id="k2">finite element analysis</keyword><keyword xml:id="k3">bone</keyword><keyword xml:id="k4">stress</keyword><keyword xml:id="k5">loading</keyword></keywordGroup><abstractGroup><abstract type="main" xml:lang="en"><title type="main">Abstract</title><p><b>Purpose:</b> This study aimed to evaluate stress distribution on peri‐implant bone simulating the influence of platform switching in external and internal hexagon implants using three‐dimensional finite element analysis.</p><p><b>Materials and Methods:</b> Four mathematical models of a central incisor supported by an implant were created: External Regular model (ER) with 5.0 mm × 11.5 mm external hexagon implant and 5.0 mm abutment (0% abutment shifting), Internal Regular model (IR) with 4.5 mm × 11.5 mm internal hexagon implant and 4.5 mm abutment (0% abutment shifting), External Switching model (ES) with 5.0 mm × 11.5 mm external hexagon implant and 4.1 mm abutment (18% abutment shifting), and Internal Switching model (IS) with 4.5 mm × 11.5 mm internal hexagon implant and 3.8 mm abutment (15% abutment shifting). The models were created by SolidWorks software. The numerical analysis was performed using ANSYS Workbench. Oblique forces (100 N) were applied to the palatal surface of the central incisor. The maximum (σ<sub>max</sub>) and minimum (σ<sub>min</sub>) principal stress, equivalent von Mises stress (σ<sub>vM</sub>), and maximum principal elastic strain (ε<sub>max</sub>) values were evaluated for the cortical and trabecular bone.</p><p><b>Results:</b> For cortical bone, the highest stress values (σ<sub>max</sub> and σ<sub>vm</sub>) (MPa) were observed in IR (87.4 and 82.3), followed by IS (83.3 and 72.4), ER (82 and 65.1), and ES (56.7 and 51.6). For ε<sub>max</sub>, IR showed the highest stress (5.46e‐003), followed by IS (5.23e‐003), ER (5.22e‐003), and ES (3.67e‐003). For the trabecular bone, the highest stress values (σ<sub>max</sub>) (MPa) were observed in ER (12.5), followed by IS (12), ES (11.9), and IR (4.95). For σ<sub>vM</sub>, the highest stress values (MPa) were observed in IS (9.65), followed by ER (9.3), ES (8.61), and IR (5.62). For ε<sub>max</sub>, ER showed the highest stress (5.5e‐003), followed by ES (5.43e‐003), IS (3.75e‐003), and IR (3.15e‐003).</p><p><b>Conclusion:</b> The influence of platform switching was more evident for cortical bone than for trabecular bone, mainly for the external hexagon implants. In addition, the external hexagon implants showed less stress concentration in the regular and switching platforms in comparison to the internal hexagon implants.</p></abstract></abstractGroup></contentMeta><noteGroup><note xml:id="n-fnt-1"><p><i>The authors claim to have no financial interest, directly or indirectly, in any entity that is commercially related to the products mentioned in this article</i>.</p></note><note xml:id="n-fnt-2"><p><i>This study was supported by the Sao Paulo Research Foundation (FAPESP – Brazil, # 2008/00209–9 and 2009/09075–8)</i>.</p></note></noteGroup></header></component></istex:document></istex:metadataXml><mods version="3.6"><titleInfo lang="en"><title>Regular and Platform Switching: Bone Stress Analysis Varying Implant Type</title></titleInfo><titleInfo type="abbreviated" lang="en"><title>Regular and Platform Switching</title></titleInfo><titleInfo type="alternative" contentType="CDATA" lang="en"><title>Regular and Platform Switching: Bone Stress Analysis Varying Implant Type</title></titleInfo><name type="personal"><namePart type="given">Nália Cecília</namePart><namePart type="family">Gurgel‐Juarez</namePart><namePart type="termsOfAddress">DDS</namePart><affiliation>MSc Student in Prosthodontics, Postgraduate Center, São Leopoldo Mandic School of Dentistry, Campinas, Brazil</affiliation><role><roleTerm type="text">author</roleTerm></role></name><name type="personal"><namePart type="given">Erika Oliveira</namePart><namePart type="family">de Almeida</namePart><namePart type="termsOfAddress">DDS, MS</namePart><affiliation>PhD Student in Prosthodontics, Department of Dental Materials and Prosthodontics, Araçatuba School of Dentistry, UNESP – Univ. Estadual Paulista, Araçatuba, Brazil</affiliation><affiliation>Visiting Scholar, Department of Biomaterials and Biomimetics, New York University, College of Dentistry, New York, NY</affiliation><affiliation>E-mail: erikaunesp@gmail.com</affiliation><role><roleTerm type="text">author</roleTerm></role></name><name type="personal"><namePart type="given">Eduardo Passos</namePart><namePart type="family">Rocha</namePart><namePart type="termsOfAddress">DDS, MS, PhD</namePart><affiliation>Assistant Professor, Department of Dental Materials and Prosthodontics, Araçatuba School of Dentistry, UNESP – Univ. Estadual Paulista, Araçatuba, Brazil</affiliation><role><roleTerm type="text">author</roleTerm></role></name><name type="personal"><namePart type="given">Amílcar Chagas Freitas</namePart><namePart type="family">Júnior</namePart><namePart type="termsOfAddress">DDS, MS</namePart><affiliation>Associate Professor, Postgraduate Program in Dentistry, Potiguar University, School of Dentistry – UnP, Natal, Brazil</affiliation><role><roleTerm type="text">author</roleTerm></role></name><name type="personal"><namePart type="given">Rodolfo Bruniera</namePart><namePart type="family">Anchieta</namePart><namePart type="termsOfAddress">DDS, MS</namePart><affiliation>PhD Student in Prosthodontics, Department of Dental Materials and Prosthodontics, Araçatuba School of Dentistry, UNESP – Univ. Estadual Paulista, Araçatuba, Brazil</affiliation><role><roleTerm type="text">author</roleTerm></role></name><name type="personal"><namePart type="given">Luis Carlos Merçon</namePart><namePart type="family">de Vargas</namePart><namePart type="termsOfAddress">DDS</namePart><affiliation>MSc Student in Prosthodontics, Postgraduate Center, São Leopoldo Mandic School of Dentistry, Campinas, Brazil</affiliation><role><roleTerm type="text">author</roleTerm></role></name><name type="personal"><namePart type="given">Sidney</namePart><namePart type="family">Kina</namePart><namePart type="termsOfAddress">DDS, MS</namePart><affiliation>Assistant Professor, Postgraduate Center, São Leopoldo Mandic School of Dentistry, Campinas, Brazil</affiliation><role><roleTerm type="text">author</roleTerm></role></name><name type="personal"><namePart type="given">Fabiana Mantovani Gomes</namePart><namePart type="family">França</namePart><namePart type="termsOfAddress">DDS, MS, PhD</namePart><affiliation>Assistant Professor, Postgraduate Center, São Leopoldo Mandic School of Dentistry, Campinas, Brazil</affiliation><role><roleTerm type="text">author</roleTerm></role></name><typeOfResource>text</typeOfResource><genre type="article" displayLabel="article" authority="ISTEX" authorityURI="https://content-type.data.istex.fr" valueURI="https://content-type.data.istex.fr/ark:/67375/XTP-6N5SZHKN-D">article</genre><originInfo><publisher>Blackwell Publishing Inc</publisher><place><placeTerm type="text">Malden, USA</placeTerm></place><dateIssued encoding="w3cdtf">2012-04</dateIssued><edition>Accepted April 18, 2011</edition><copyrightDate encoding="w3cdtf">2012</copyrightDate></originInfo><language><languageTerm type="code" authority="rfc3066">en</languageTerm><languageTerm type="code" authority="iso639-2b">eng</languageTerm></language><physicalDescription><extent unit="figures">5</extent><extent unit="tables">4</extent><extent unit="formulas">0</extent><extent unit="references">62</extent><extent unit="linksCrossRef">70</extent></physicalDescription><abstract>Purpose: This study aimed to evaluate stress distribution on peri‐implant bone simulating the influence of platform switching in external and internal hexagon implants using three‐dimensional finite element analysis.</abstract><abstract>Materials and Methods: Four mathematical models of a central incisor supported by an implant were created: External Regular model (ER) with 5.0 mm × 11.5 mm external hexagon implant and 5.0 mm abutment (0% abutment shifting), Internal Regular model (IR) with 4.5 mm × 11.5 mm internal hexagon implant and 4.5 mm abutment (0% abutment shifting), External Switching model (ES) with 5.0 mm × 11.5 mm external hexagon implant and 4.1 mm abutment (18% abutment shifting), and Internal Switching model (IS) with 4.5 mm × 11.5 mm internal hexagon implant and 3.8 mm abutment (15% abutment shifting). The models were created by SolidWorks software. The numerical analysis was performed using ANSYS Workbench. Oblique forces (100 N) were applied to the palatal surface of the central incisor. The maximum (σmax) and minimum (σmin) principal stress, equivalent von Mises stress (σvM), and maximum principal elastic strain (εmax) values were evaluated for the cortical and trabecular bone.</abstract><abstract>Results: For cortical bone, the highest stress values (σmax and σvm) (MPa) were observed in IR (87.4 and 82.3), followed by IS (83.3 and 72.4), ER (82 and 65.1), and ES (56.7 and 51.6). For εmax, IR showed the highest stress (5.46e‐003), followed by IS (5.23e‐003), ER (5.22e‐003), and ES (3.67e‐003). For the trabecular bone, the highest stress values (σmax) (MPa) were observed in ER (12.5), followed by IS (12), ES (11.9), and IR (4.95). For σvM, the highest stress values (MPa) were observed in IS (9.65), followed by ER (9.3), ES (8.61), and IR (5.62). For εmax, ER showed the highest stress (5.5e‐003), followed by ES (5.43e‐003), IS (3.75e‐003), and IR (3.15e‐003).</abstract><abstract>Conclusion: The influence of platform switching was more evident for cortical bone than for trabecular bone, mainly for the external hexagon implants. In addition, the external hexagon implants showed less stress concentration in the regular and switching platforms in comparison to the internal hexagon implants.</abstract><subject lang="en"><genre>keywords</genre><topic>Implant dentistry</topic><topic>finite element analysis</topic><topic>bone</topic><topic>stress</topic><topic>loading</topic></subject><relatedItem type="host"><titleInfo><title>Journal of Prosthodontics</title><subTitle>Implant, Esthetic and Reconstructive Dentistry</subTitle></titleInfo><genre type="journal" authority="ISTEX" authorityURI="https://publication-type.data.istex.fr" valueURI="https://publication-type.data.istex.fr/ark:/67375/JMC-0GLKJH51-B">journal</genre><identifier type="ISSN">1059-941X</identifier><identifier type="eISSN">1532-849X</identifier><identifier type="DOI">10.1111/(ISSN)1532-849X</identifier><identifier type="PublisherID">JOPR</identifier><part><date>2012</date><detail type="volume"><caption>vol.</caption><number>21</number></detail><detail type="issue"><caption>no.</caption><number>3</number></detail><extent unit="pages"><start>160</start><end>166</end><total>7</total></extent></part></relatedItem><identifier type="istex">008F222659446AA04DF42C3D2965AEAADE9F21C1</identifier><identifier type="ark">ark:/67375/WNG-SLQDBS1K-P</identifier><identifier type="DOI">10.1111/j.1532-849X.2011.00801.x</identifier><identifier type="ArticleID">JOPR801</identifier><accessCondition type="use and reproduction" contentType="copyright">© 2012 by the American College of Prosthodontists</accessCondition><recordInfo><recordContentSource authority="ISTEX" authorityURI="https://loaded-corpus.data.istex.fr" valueURI="https://loaded-corpus.data.istex.fr/ark:/67375/XBH-L0C46X92-X">wiley</recordContentSource><recordOrigin>Blackwell Publishing Inc</recordOrigin></recordInfo></mods><json:item><extension>json</extension><original>false</original><mimetype>application/json</mimetype><uri>https://api.istex.fr/document/008F222659446AA04DF42C3D2965AEAADE9F21C1/metadata/json</uri></json:item></metadata><serie></serie></istex></record>Pour manipuler ce document sous Unix (Dilib)
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