Effect of microthread presence and restoration design (screw versus cemented) in dental implant reliability and failure modes
Identifieur interne : 000026 ( Istex/Corpus ); précédent : 000025; suivant : 000027Effect of microthread presence and restoration design (screw versus cemented) in dental implant reliability and failure modes
Auteurs : Erika O. Almeida ; Amilcar C. Freitas Júnior ; Estevam A. Bonfante ; Eduardo Passos Rocha ; Nelson R. F. A. Silva ; Paulo G. CoelhoSource :
- Clinical Oral Implants Research [ 0905-7161 ] ; 2013-02.
English descriptors
- KwdEn :
- Abutment, Abutment fracture, Abutment screw, Abutment screw fracture, Almeida, Benferroni post, Biomedical materials research part, Characteristic strength, Clinical implant dentistry, Coelho, Colosso, Crack propagation, Crestal, Crestal bone, Crestal bone stress levels, Crestal region, Crown screw, Cumulative incidence, Damage accumulation, Dental implant reliability, Dental implants, Dental materials, Dentistry, Different reliability, Dimpled appearance, Evolution system, Experimental study, External hexagon connections, Failure analysis, Failure modes, Fatigue loading, Fatigue testing, Fractographic markings, Fracture, Fracture abutment, Fracture abutment screw, Fracture origin, Fracture values, Freitas, Hexagon, Higher load, Implant, Implant fracture, Implant fracture rates, Implant fractures, Implant macrogeometry, Implants research, Intact abutment, Intact abutment screw, Intact implant, International journal, John wiley sons, John wiley sons almeida, Level probability weibull, Level probability weibull calculation, Macro picture, Marginal bone level, Marginal bone loss, Mechanical behavior, Mechanical perspective, Mechanical standpoint, Mechanical testing, Microthread, Microthread implants, Microthread presence, Microthreaded, Microthreaded implants, Microthreads, More abutment, Nite element analysis, Null hypothesis, Oral impl, Oral maxillofacial implants, Oral rehabilitation, Osseointegrated implants, Pillar colosso, Postgraduate program, Present study, Probability weibull distribution, Prospective multicenter study, Prospective study, Prosthetic dentistry, Radiographic evaluation, Reliability, Restoration design, Silva, Smooth design, Smooth implant, Titanium transmucous colosso, Weibull, Weibull modulus, White arrows show, Xation, Xation method, Xation screw colosso, Yellow arrow, York university college.
- Teeft :
- Abutment, Abutment fracture, Abutment screw, Abutment screw fracture, Almeida, Benferroni post, Biomedical materials research part, Characteristic strength, Clinical implant dentistry, Coelho, Colosso, Crack propagation, Crestal, Crestal bone, Crestal bone stress levels, Crestal region, Crown screw, Cumulative incidence, Damage accumulation, Dental implant reliability, Dental implants, Dental materials, Dentistry, Different reliability, Dimpled appearance, Evolution system, Experimental study, External hexagon connections, Failure analysis, Failure modes, Fatigue loading, Fatigue testing, Fractographic markings, Fracture, Fracture abutment, Fracture abutment screw, Fracture origin, Fracture values, Freitas, Hexagon, Higher load, Implant, Implant fracture, Implant fracture rates, Implant fractures, Implant macrogeometry, Implants research, Intact abutment, Intact abutment screw, Intact implant, International journal, John wiley sons, John wiley sons almeida, Level probability weibull, Level probability weibull calculation, Macro picture, Marginal bone level, Marginal bone loss, Mechanical behavior, Mechanical perspective, Mechanical standpoint, Mechanical testing, Microthread, Microthread implants, Microthread presence, Microthreaded, Microthreaded implants, Microthreads, More abutment, Nite element analysis, Null hypothesis, Oral impl, Oral maxillofacial implants, Oral rehabilitation, Osseointegrated implants, Pillar colosso, Postgraduate program, Present study, Probability weibull distribution, Prospective multicenter study, Prospective study, Prosthetic dentistry, Radiographic evaluation, Reliability, Restoration design, Silva, Smooth design, Smooth implant, Titanium transmucous colosso, Weibull, Weibull modulus, White arrows show, Xation, Xation method, Xation screw colosso, Yellow arrow, York university college.
Abstract
This study evaluated the reliability and failure modes of implants with a microthreaded or smooth design at the crestal region, restored with screwed or cemented crowns. The postulated null hypothesis was that the presence of microthreads in the implant cervical region would not result in different reliability and strength to failure than smooth design, regardless of fixation method, when subjected to step‐stress accelerated life‐testing (SSALT) in water.
Url:
DOI: 10.1111/j.1600-0501.2012.02437.x
Links to Exploration step
ISTEX:091F6343233415B9186D3D1D76AE18492F0BED8BLe document en format XML
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markings</term><term>Fracture</term><term>Fracture abutment</term><term>Fracture abutment screw</term><term>Fracture origin</term><term>Fracture values</term><term>Freitas</term><term>Hexagon</term><term>Higher load</term><term>Implant</term><term>Implant fracture</term><term>Implant fracture rates</term><term>Implant fractures</term><term>Implant macrogeometry</term><term>Implants research</term><term>Intact abutment</term><term>Intact abutment screw</term><term>Intact implant</term><term>International journal</term><term>John wiley sons</term><term>John wiley sons almeida</term><term>Level probability weibull</term><term>Level probability weibull calculation</term><term>Macro picture</term><term>Marginal bone level</term><term>Marginal bone loss</term><term>Mechanical behavior</term><term>Mechanical perspective</term><term>Mechanical standpoint</term><term>Mechanical testing</term><term>Microthread</term><term>Microthread implants</term><term>Microthread presence</term><term>Microthreaded</term><term>Microthreaded implants</term><term>Microthreads</term><term>More abutment</term><term>Nite element analysis</term><term>Null hypothesis</term><term>Oral impl</term><term>Oral maxillofacial implants</term><term>Oral rehabilitation</term><term>Osseointegrated implants</term><term>Pillar colosso</term><term>Postgraduate program</term><term>Present study</term><term>Probability weibull distribution</term><term>Prospective multicenter study</term><term>Prospective study</term><term>Prosthetic dentistry</term><term>Radiographic evaluation</term><term>Reliability</term><term>Restoration design</term><term>Silva</term><term>Smooth design</term><term>Smooth implant</term><term>Titanium transmucous colosso</term><term>Weibull</term><term>Weibull modulus</term><term>White arrows show</term><term>Xation</term><term>Xation method</term><term>Xation screw colosso</term><term>Yellow arrow</term><term>York university college</term></keywords><keywords scheme="Teeft" xml:lang="en"><term>Abutment</term><term>Abutment fracture</term><term>Abutment screw</term><term>Abutment screw fracture</term><term>Almeida</term><term>Benferroni post</term><term>Biomedical materials research part</term><term>Characteristic strength</term><term>Clinical implant dentistry</term><term>Coelho</term><term>Colosso</term><term>Crack propagation</term><term>Crestal</term><term>Crestal bone</term><term>Crestal bone stress levels</term><term>Crestal region</term><term>Crown screw</term><term>Cumulative incidence</term><term>Damage accumulation</term><term>Dental implant reliability</term><term>Dental implants</term><term>Dental materials</term><term>Dentistry</term><term>Different reliability</term><term>Dimpled appearance</term><term>Evolution system</term><term>Experimental study</term><term>External hexagon connections</term><term>Failure analysis</term><term>Failure modes</term><term>Fatigue loading</term><term>Fatigue testing</term><term>Fractographic markings</term><term>Fracture</term><term>Fracture abutment</term><term>Fracture abutment screw</term><term>Fracture origin</term><term>Fracture values</term><term>Freitas</term><term>Hexagon</term><term>Higher load</term><term>Implant</term><term>Implant fracture</term><term>Implant fracture rates</term><term>Implant fractures</term><term>Implant macrogeometry</term><term>Implants research</term><term>Intact abutment</term><term>Intact abutment screw</term><term>Intact implant</term><term>International journal</term><term>John wiley sons</term><term>John wiley sons almeida</term><term>Level probability weibull</term><term>Level probability weibull calculation</term><term>Macro picture</term><term>Marginal bone level</term><term>Marginal bone loss</term><term>Mechanical behavior</term><term>Mechanical perspective</term><term>Mechanical standpoint</term><term>Mechanical testing</term><term>Microthread</term><term>Microthread implants</term><term>Microthread presence</term><term>Microthreaded</term><term>Microthreaded implants</term><term>Microthreads</term><term>More abutment</term><term>Nite element analysis</term><term>Null hypothesis</term><term>Oral impl</term><term>Oral maxillofacial implants</term><term>Oral rehabilitation</term><term>Osseointegrated implants</term><term>Pillar colosso</term><term>Postgraduate program</term><term>Present study</term><term>Probability weibull distribution</term><term>Prospective multicenter study</term><term>Prospective study</term><term>Prosthetic dentistry</term><term>Radiographic evaluation</term><term>Reliability</term><term>Restoration design</term><term>Silva</term><term>Smooth design</term><term>Smooth implant</term><term>Titanium transmucous colosso</term><term>Weibull</term><term>Weibull modulus</term><term>White arrows show</term><term>Xation</term><term>Xation method</term><term>Xation screw colosso</term><term>Yellow arrow</term><term>York university college</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract">This study evaluated the reliability and failure modes of implants with a microthreaded or smooth design at the crestal region, restored with screwed or cemented crowns. The postulated null hypothesis was that the presence of microthreads in the implant cervical region would not result in different reliability and strength to failure than smooth design, regardless of fixation method, when subjected to step‐stress accelerated life‐testing (SSALT) in water.</div></front></TEI><istex><corpusName>wiley</corpusName><keywords><teeft><json:string>implant</json:string><json:string>abutment</json:string><json:string>weibull</json:string><json:string>microthreads</json:string><json:string>microthreaded</json:string><json:string>microthread</json:string><json:string>fracture</json:string><json:string>xation</json:string><json:string>colosso</json:string><json:string>abutment screw</json:string><json:string>failure modes</json:string><json:string>crestal</json:string><json:string>reliability</json:string><json:string>almeida</json:string><json:string>freitas</json:string><json:string>intact implant</json:string><json:string>silva</json:string><json:string>coelho</json:string><json:string>microthreaded implants</json:string><json:string>oral impl</json:string><json:string>smooth design</json:string><json:string>characteristic strength</json:string><json:string>international journal</json:string><json:string>dentistry</json:string><json:string>null hypothesis</json:string><json:string>implant fractures</json:string><json:string>xation method</json:string><json:string>implants research</json:string><json:string>intact abutment screw</json:string><json:string>weibull modulus</json:string><json:string>oral maxillofacial implants</json:string><json:string>crack propagation</json:string><json:string>intact abutment</json:string><json:string>implant macrogeometry</json:string><json:string>hexagon</json:string><json:string>john wiley sons</json:string><json:string>fatigue testing</json:string><json:string>evolution system</json:string><json:string>macro picture</json:string><json:string>benferroni post</json:string><json:string>fracture origin</json:string><json:string>implant fracture rates</json:string><json:string>mechanical testing</json:string><json:string>damage accumulation</json:string><json:string>different reliability</json:string><json:string>clinical implant dentistry</json:string><json:string>crestal region</json:string><json:string>restoration design</json:string><json:string>nite element analysis</json:string><json:string>marginal bone level</json:string><json:string>higher load</json:string><json:string>fracture values</json:string><json:string>radiographic evaluation</json:string><json:string>dental implants</json:string><json:string>microthread presence</json:string><json:string>john wiley sons almeida</json:string><json:string>titanium transmucous colosso</json:string><json:string>xation screw colosso</json:string><json:string>pillar colosso</json:string><json:string>level probability weibull</json:string><json:string>york university college</json:string><json:string>prospective study</json:string><json:string>marginal bone loss</json:string><json:string>failure analysis</json:string><json:string>fractographic markings</json:string><json:string>probability weibull distribution</json:string><json:string>abutment fracture</json:string><json:string>implant fracture</json:string><json:string>mechanical perspective</json:string><json:string>crestal bone</json:string><json:string>white arrows show</json:string><json:string>yellow arrow</json:string><json:string>dimpled appearance</json:string><json:string>mechanical behavior</json:string><json:string>present study</json:string><json:string>smooth implant</json:string><json:string>level probability weibull calculation</json:string><json:string>fracture abutment screw</json:string><json:string>fracture abutment</json:string><json:string>cumulative incidence</json:string><json:string>crown screw</json:string><json:string>mechanical standpoint</json:string><json:string>microthread implants</json:string><json:string>experimental study</json:string><json:string>postgraduate program</json:string><json:string>abutment screw fracture</json:string><json:string>osseointegrated implants</json:string><json:string>external hexagon connections</json:string><json:string>dental materials</json:string><json:string>crestal bone stress levels</json:string><json:string>more abutment</json:string><json:string>oral rehabilitation</json:string><json:string>prospective multicenter study</json:string><json:string>dental implant reliability</json:string><json:string>biomedical materials research part</json:string><json:string>prosthetic dentistry</json:string><json:string>fatigue loading</json:string></teeft></keywords><author><json:item><name>Erika O. Almeida</name><affiliations><json:string>Department of Dental Material and Prosthodontics, Araçatuba School of Dentistry, Sao Paulo State University – UNESP, Sao Paulo, Brazil</json:string></affiliations></json:item><json:item><name>Amilcar C. Freitas Júnior</name><affiliations><json:string>Postgraduate Program in Dentistry, School of Dentistry – UnP, Potiguar University, RN, Natal, Brazil</json:string></affiliations></json:item><json:item><name>Estevam A. Bonfante</name><affiliations><json:string>Postgraduate Program in Dentistry, UNIGRANRIO University, RJ, Duque de Caxias, Brazil</json:string><json:string>Rua Prof. José de Souza Herdy, 1.160 – 25 de Agosto, Duque de Caxias, RJ, Brazil25071‐202Tel.: +55(14) 3234 5805Fax: +55(14) 3234 2566e‐mail:</json:string><json:string>E-mail: estevamab@gmail.com</json:string></affiliations></json:item><json:item><name>Eduardo Passos Rocha</name><affiliations><json:string>Department of Dental Material and Prosthodontics, Araçatuba School of Dentistry, Sao Paulo State University – UNESP, Sao Paulo, Brazil</json:string></affiliations></json:item><json:item><name>Nelson R. F. A. Silva</name><affiliations><json:string>Department of Prosthodontics, New York University College of Dentistry, NY, New York, USA</json:string></affiliations></json:item><json:item><name>Paulo G. Coelho</name><affiliations><json:string>Department of Biomaterials and Biomimetics, Director for Research, Department of Periodontology and Implant Dentistry, New York University College of Dentistry, NY, New York, USA</json:string></affiliations></json:item></author><subject><json:item><lang><json:string>eng</json:string></lang><value>dental implant</value></json:item><json:item><lang><json:string>eng</json:string></lang><value>fractography</value></json:item><json:item><lang><json:string>eng</json:string></lang><value>reliability</value></json:item><json:item><lang><json:string>eng</json:string></lang><value>step‐stress accelerated life‐testing</value></json:item><json:item><lang><json:string>eng</json:string></lang><value>Weibull</value></json:item></subject><articleId><json:string>CLR2437</json:string></articleId><arkIstex>ark:/67375/WNG-PRZ7264L-6</arkIstex><language><json:string>eng</json:string></language><originalGenre><json:string>article</json:string></originalGenre><abstract>This study evaluated the reliability and failure modes of implants with a microthreaded or smooth design at the crestal region, restored with screwed or cemented crowns. The postulated null hypothesis was that the presence of microthreads in the implant cervical region would not result in different reliability and strength to failure than smooth design, regardless of fixation method, when subjected to step‐stress accelerated life‐testing (SSALT) in water.</abstract><qualityIndicators><refBibsNative>true</refBibsNative><abstractWordCount>67</abstractWordCount><abstractCharCount>459</abstractCharCount><keywordCount>5</keywordCount><score>7.183</score><pdfWordCount>4379</pdfWordCount><pdfCharCount>28441</pdfCharCount><pdfVersion>1.3</pdfVersion><pdfPageCount>6</pdfPageCount><pdfPageSize>595.276 x 782.362 pts</pdfPageSize></qualityIndicators><title>Effect of microthread presence and restoration design (screw versus cemented) in dental implant reliability and failure modes</title><pmid><json:string>22413873</json:string></pmid><genre><json:string>article</json:string></genre><host><title>Clinical Oral Implants Research</title><language><json:string>unknown</json:string></language><doi><json:string>10.1111/(ISSN)1600-0501</json:string></doi><issn><json:string>0905-7161</json:string></issn><eissn><json:string>1600-0501</json:string></eissn><publisherId><json:string>CLR</json:string></publisherId><volume>24</volume><issue>2</issue><pages><first>191</first><last>196</last><total>6</total></pages><genre><json:string>journal</json:string></genre><subject><json:item><value>Original Article</value></json:item></subject></host><namedEntities><unitex><date><json:string>2013-01-15</json:string></date><geogName></geogName><orgName><json:string>Brazil Estevam A</json:string><json:string>TestResources Inc.</json:string><json:string>Brazil Nelson R</json:string><json:string>New York University</json:string><json:string>Department of Prosthodontics, New York University College of Dentistry, New York, NY, USA Effect</json:string><json:string>Potiguar University</json:string><json:string>Research, Department of Periodontology and Implant</json:string><json:string>Department of Dental Material and Prosthodontics</json:string><json:string>Reliasoft</json:string></orgName><orgName_funder></orgName_funder><orgName_provider></orgName_provider><persName><json:string>John Wiley</json:string><json:string>Paulo G. Coelho</json:string><json:string>Carl Zeiss</json:string><json:string>Eduardo Passos</json:string><json:string>F. A. Silva</json:string><json:string>To</json:string><json:string>Erika O. Almeida</json:string></persName><placeName><json:string>Germany</json:string><json:string>NY</json:string><json:string>Brazil</json:string><json:string>Bremen</json:string><json:string>AZ</json:string><json:string>USA</json:string><json:string>Japan</json:string><json:string>Canton</json:string><json:string>MA</json:string><json:string>Sao Paulo</json:string><json:string>Mainz</json:string><json:string>Osaka</json:string><json:string>Tucson</json:string></placeName><ref_url></ref_url><ref_bibl><json:string>Hansson 1999</json:string><json:string>Gunne et al. 1994</json:string><json:string>Naert et al. 1992</json:string><json:string>Abuhussein et al. 2010</json:string><json:string>Abernethy 2006</json:string><json:string>Hansson & Werke 2003</json:string><json:string>Shin et al. 2006</json:string><json:string>Pessoa et al. 2010</json:string><json:string>Hudieb et al. 2011</json:string><json:string>Zarb & Schmitt 1990</json:string><json:string>Freitas et al. 2011</json:string><json:string>Nelson 2004</json:string><json:string>Coelho et al. 2009</json:string><json:string>Abrahamsson & Berglundh 2006</json:string><json:string>Lekholm et al. 1999</json:string><json:string>Palmer et al. 2000</json:string><json:string>Ritter 1995</json:string><json:string>Zhao 2005</json:string><json:string>Hansson & Halldin 2009</json:string><json:string>Rasmusson et al. 2001</json:string><json:string>Henry et al. 1996</json:string><json:string>Parrington 2002</json:string><json:string>Reliasoft 2011</json:string><json:string>Lee et al. 2007</json:string><json:string>Jung et al. 2008</json:string><json:string>Piao et al. 2009</json:string><json:string>Pylant et al. 1992</json:string><json:string>Manda et al. 2009</json:string><json:string>Silva et al. 2009</json:string><json:string>Schrotenboer et al. 2008</json:string><json:string>Adell et al. 1981</json:string><json:string>Almeida et al</json:string><json:string>Hellsing 1980</json:string></ref_bibl><bibl></bibl></unitex></namedEntities><ark><json:string>ark:/67375/WNG-PRZ7264L-6</json:string></ark><categories><wos><json:string>1 - science</json:string><json:string>2 - engineering, biomedical</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 - Oral Surgery</json:string></scopus></categories><publicationDate>2013</publicationDate><copyrightDate>2013</copyrightDate><doi><json:string>10.1111/j.1600-0501.2012.02437.x</json:string></doi><id>091F6343233415B9186D3D1D76AE18492F0BED8B</id><score>1</score><fulltext><json:item><extension>pdf</extension><original>true</original><mimetype>application/pdf</mimetype><uri>https://api.istex.fr/document/091F6343233415B9186D3D1D76AE18492F0BED8B/fulltext/pdf</uri></json:item><json:item><extension>zip</extension><original>false</original><mimetype>application/zip</mimetype><uri>https://api.istex.fr/document/091F6343233415B9186D3D1D76AE18492F0BED8B/fulltext/zip</uri></json:item><istex:fulltextTEI uri="https://api.istex.fr/document/091F6343233415B9186D3D1D76AE18492F0BED8B/fulltext/tei"><teiHeader><fileDesc><titleStmt><title level="a" type="main">Effect of microthread presence and restoration design (screw versus cemented) in dental implant reliability and failure modes</title></titleStmt><publicationStmt><authority>ISTEX</authority><publisher>Wiley Publishing Ltd</publisher><availability><licence>© 2012 John Wiley & Sons A/S</licence></availability><date type="published" when="2013-02"></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">Effect of microthread presence and restoration design (screw versus cemented) in dental implant reliability and failure modes</title><author xml:id="author-0000"><persName><forename type="first">Erika O.</forename><surname>Almeida</surname></persName><affiliation><orgName>Department of Dental Material and Prosthodontics</orgName><orgName>Araçatuba School of Dentistry</orgName><orgName>Sao Paulo State University – UNESP</orgName><address><settlement type="city">Sao Paulo</settlement><country key="BR">Brazil</country></address></affiliation></author><author xml:id="author-0001"><persName><forename type="first">Amilcar C.</forename><surname>Freitas Júnior</surname></persName><affiliation><orgName>Postgraduate Program in Dentistry</orgName><orgName>School of Dentistry – UnP</orgName><orgName>Potiguar University</orgName><address><settlement type="city">Natal</settlement><region>RN</region><country key="BR">Brazil</country></address></affiliation></author><author xml:id="author-0002" role="corresp"><persName><forename type="first">Estevam A.</forename><surname>Bonfante</surname></persName><affiliation><orgName>Postgraduate Program in Dentistry</orgName><orgName>UNIGRANRIO University</orgName><address><settlement type="city">Duque de Caxias</settlement><region>RJ</region><country key="BR">Brazil</country></address></affiliation><affiliation>Corresponding author: Estevam A. Bonfante Rua Prof. José de Souza Herdy, 1.160 – 25 de Agosto, Duque de Caxias, RJ, Brazil 25071‐202 Tel.: +55(14) 3234 5805 Fax: +55(14) 3234 2566 e‐mail: estevamab@gmail.com</affiliation></author><author xml:id="author-0003"><persName><forename type="first">Eduardo Passos</forename><surname>Rocha</surname></persName><affiliation><orgName>Department of Dental Material and Prosthodontics</orgName><orgName>Araçatuba School of Dentistry</orgName><orgName>Sao Paulo State University – UNESP</orgName><address><settlement type="city">Sao Paulo</settlement><country key="BR">Brazil</country></address></affiliation></author><author xml:id="author-0004"><persName><forename type="first">Nelson R. F. A.</forename><surname>Silva</surname></persName><affiliation><orgName>Department of Prosthodontics</orgName><orgName>New York University College of Dentistry</orgName><address><settlement type="city">New York</settlement><region>NY</region><country key="US">USA</country></address></affiliation></author><author xml:id="author-0005"><persName><forename type="first">Paulo G.</forename><surname>Coelho</surname></persName><affiliation><orgName>Department of Biomaterials and Biomimetics, Director for Research</orgName><orgName>Department of Periodontology and Implant Dentistry</orgName><orgName>New York University College of Dentistry</orgName><address><settlement type="city">New York</settlement><region>NY</region><country key="US">USA</country></address></affiliation></author><idno type="istex">091F6343233415B9186D3D1D76AE18492F0BED8B</idno><idno type="ark">ark:/67375/WNG-PRZ7264L-6</idno><idno type="DOI">10.1111/j.1600-0501.2012.02437.x</idno><idno type="unit">CLR2437</idno><idno type="toTypesetVersion">file:CLR.CLR2437.pdf</idno></analytic><monogr><title level="j" type="main">Clinical Oral Implants Research</title><title level="j" type="alt">CLINICAL ORAL IMPLANTS RESEARCH</title><idno type="pISSN">0905-7161</idno><idno type="eISSN">1600-0501</idno><idno type="book-DOI">10.1111/(ISSN)1600-0501</idno><idno type="book-part-DOI">10.1111/clr.2013.24.issue-2</idno><idno type="product">CLR</idno><imprint><biblScope unit="vol">24</biblScope><biblScope unit="issue">2</biblScope><biblScope unit="page" from="191">191</biblScope><biblScope unit="page" to="196">196</biblScope><biblScope unit="page-count">6</biblScope><date type="published" when="2013-02"></date></imprint></monogr></biblStruct></sourceDesc></fileDesc><profileDesc><abstract xml:lang="en" style="main" xml:id="clr2437-abs-0001"><head>Abstract</head>
Objectives
<p>This study evaluated the reliability and failure modes of implants with a microthreaded or smooth design at the crestal region, restored with screwed or cemented crowns. The postulated null hypothesis was that the presence of microthreads in the implant cervical region would not result in different reliability and strength to failure than smooth design, regardless of fixation method, when subjected to step‐stress accelerated life‐testing (<hi rend="fc">SSALT</hi>) in water.</p>
Materials and methods
<p>Eighty four dental implants (3.3 × 10 mm) were divided into four groups (<hi rend="italic">n </hi>= 21) according to implant macrogeometric design at the crestal region and crown fixation method: Microthreads Screwed (<hi rend="fc">MS</hi>); Smooth Screwed (<hi rend="fc">SS</hi>); Microthreads Cemented (<hi rend="fc">MC</hi>), and Smooth Cemented (<hi rend="fc">SC</hi>). The abutments were torqued to the implants and standardized maxillary central incisor metallic crowns were cemented (<hi rend="fc">MC</hi>,<hi rend="fc"> SC</hi>) or screwed (<hi rend="fc">MS</hi>,<hi rend="fc"> SS</hi>) and subjected to <hi rend="fc">SSALT</hi> in water. The probability of failure versus cycles (90% two‐sided confidence intervals) was calculated and plotted using a power law relationship for damage accumulation. Reliability for a mission of 50,000 cycles at 150 N (90% 2‐sided confidence intervals) was calculated. Differences between final failure loads during fatigue for each group were assessed by Kruskal–Wallis along with Benferroni's <hi rend="italic">post hoc</hi> tests. Polarized‐light and scanning electron microscopes were used for failure analyses.</p>
Results
<p>The Beta (β) value (confidence interval range) derived from use level probability Weibull calculation of 1.30 (0.76–2.22), 1.17 (0.70–1.96), 1.12 (0.71–1.76), and 0.52 (0.30–0.89) for groups <hi rend="fc">MC</hi>,<hi rend="fc"> SC</hi>,<hi rend="fc"> MS</hi>, and <hi rend="fc">SS</hi> respectively, indicated that fatigue was an accelerating factor for all groups, except for <hi rend="fc">SS</hi>. The calculated reliability was higher for <hi rend="fc">SC</hi> (99%) compared to <hi rend="fc">MC</hi> (87%). No difference was observed between screwed restorations (<hi rend="fc">MS</hi> – 29%, <hi rend="fc">SS</hi> – 43%). Failure involved abutment screw fracture for all groups. The cemented groups (<hi rend="fc">MC</hi>,<hi rend="fc"> SC</hi>) presented more abutment and implant fractures. Significantly higher load to fracture values were observed for <hi rend="fc">SC</hi> and <hi rend="fc">MC</hi> relative to <hi rend="fc">MS</hi> and <hi rend="fc">SS</hi> (<hi rend="italic">P </hi>< 0.001).</p>
Conclusion
<p>Since reliability and strength to failure was higher for <hi rend="fc">SC</hi> than for <hi rend="fc">MC</hi>, our postulated null hypothesis was rejected.</p></abstract><textClass><keywords><term xml:id="clr2437-kwd-0001">dental implant</term><term xml:id="clr2437-kwd-0002">fractography</term><term xml:id="clr2437-kwd-0003">reliability</term><term xml:id="clr2437-kwd-0004">step‐stress accelerated life‐testing</term><term xml:id="clr2437-kwd-0005">Weibull</term></keywords><keywords rend="articleCategory"><term>Original Article</term></keywords><keywords rend="tocHeading1"><term>Original Articles</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/091F6343233415B9186D3D1D76AE18492F0BED8B/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 type="serialArticle" version="2.0" xml:id="clr2437" xml:lang="en"><header><publicationMeta level="product"><doi origin="wiley" registered="yes">10.1111/(ISSN)1600-0501</doi><issn type="print">0905-7161</issn><issn type="electronic">1600-0501</issn><idGroup><id type="product" value="CLR"></id></idGroup><titleGroup><title sort="CLINICAL ORAL IMPLANTS RESEARCH" type="main">Clinical Oral Implants Research</title><title type="short">Clin. Oral Impl. Res.</title></titleGroup></publicationMeta><publicationMeta level="part" position="20"><doi origin="wiley">10.1111/clr.2013.24.issue-2</doi><copyright ownership="publisher">Copyright © 2013 John Wiley & Sons A/S</copyright><numberingGroup><numbering type="journalVolume" number="24">24</numbering><numbering type="journalIssue">2</numbering></numberingGroup><coverDate startDate="2013-02">February 2013</coverDate></publicationMeta><publicationMeta level="unit" position="100" status="forIssue" type="article"><doi>10.1111/j.1600-0501.2012.02437.x</doi><idGroup><id type="unit" value="CLR2437"></id></idGroup><countGroup><count number="6" type="pageTotal"></count></countGroup><titleGroup><title type="articleCategory">Original Article</title><title type="tocHeading1">Original Articles</title></titleGroup><copyright ownership="publisher">© 2012 John Wiley & Sons A/S</copyright><eventGroup><event date="2012-01-29" type="manuscriptAccepted"></event><event agent="SPS" date="2013-01-15" type="xmlCreated"></event><event type="publishedOnlineEarlyUnpaginated" date="2012-03-13"></event><event type="firstOnline" date="2012-03-13"></event><event type="publishedOnlineFinalForm" date="2013-01-20"></event><event type="xmlConverted" agent="Converter:WILEY_ML3G_TO_WILEY_ML3GV2 version:4.0.1" date="2014-03-12"></event><event type="xmlConverted" agent="Converter:WML3G_To_WML3G version:4.6.4 mode:FullText" date="2015-10-03"></event></eventGroup><numberingGroup><numbering type="pageFirst">191</numbering><numbering type="pageLast">196</numbering></numberingGroup><correspondenceTo><lineatedText><line><b>Corresponding author:</b></line><line><i>Estevam A. Bonfante</i></line><line>Rua Prof. José de Souza Herdy, 1.160 – 25 de Agosto, Duque de Caxias, RJ, Brazil</line><line>25071‐202</line><line>Tel.: +55(14) 3234 5805</line><line>Fax: +55(14) 3234 2566</line><line>e‐mail: <email>estevamab@gmail.com</email></line></lineatedText></correspondenceTo><selfCitationGroup><citation type="self" xml:id="clr2437-cit-0033">Almeida EO, Freitas Júnior AC, Bonfante EA, Rocha EP, Silva NRFA, Coelho PG. Effect of microthread presence and restoration design (screw versus cemented) in dental implant reliability and failure modes. <i>Clin. Oral Impl. Res</i>. <b>24</b>, 2013, 191–196. doi: 10.1111/j.1600-0501.2012.02437.x</citation></selfCitationGroup><linkGroup><link type="toTypesetVersion" href="file:CLR.CLR2437.pdf"></link></linkGroup></publicationMeta><contentMeta><titleGroup><title type="main">Effect of microthread presence and restoration design (screw versus cemented) in dental implant reliability and failure modes</title><title type="shortAuthors">Almeida et al</title></titleGroup><creators><creator affiliationRef="#clr2437-aff-0002" creatorRole="author" xml:id="clr2437-cr-0001"><personName><givenNames>Erika O.</givenNames> <familyName>Almeida</familyName></personName></creator><creator affiliationRef="#clr2437-aff-0003" creatorRole="author" xml:id="clr2437-cr-0002"><personName><givenNames>Amilcar C.</givenNames> <familyName>Freitas Júnior</familyName></personName></creator><creator affiliationRef="#clr2437-aff-0004" corresponding="yes" creatorRole="author" xml:id="clr2437-cr-0003"><personName><givenNames>Estevam A.</givenNames> <familyName>Bonfante</familyName></personName></creator><creator affiliationRef="#clr2437-aff-0002" creatorRole="author" xml:id="clr2437-cr-0004"><personName><givenNames>Eduardo Passos</givenNames> <familyName>Rocha</familyName></personName></creator><creator affiliationRef="#clr2437-aff-0005" creatorRole="author" xml:id="clr2437-cr-0005"><personName><givenNames>Nelson R. F. A.</givenNames> <familyName>Silva</familyName></personName></creator><creator affiliationRef="#clr2437-aff-0001" creatorRole="author" xml:id="clr2437-cr-0006"><personName><givenNames>Paulo G.</givenNames> <familyName>Coelho</familyName></personName></creator></creators><affiliationGroup><affiliation countryCode="US" type="organization" xml:id="clr2437-aff-0001"><orgDiv>Department of Biomaterials and Biomimetics, Director for Research</orgDiv> <orgDiv>Department of Periodontology and Implant Dentistry</orgDiv> <orgName>New York University College of Dentistry</orgName> <address><city>New York</city> <countryPart>NY</countryPart> <country>USA</country></address></affiliation><affiliation countryCode="BR" type="organization" xml:id="clr2437-aff-0002"><orgDiv>Department of Dental Material and Prosthodontics</orgDiv> <orgDiv>Araçatuba School of Dentistry</orgDiv> <orgName>Sao Paulo State University – UNESP</orgName> <address><city>Sao Paulo</city> <country>Brazil</country></address></affiliation><affiliation countryCode="BR" type="organization" xml:id="clr2437-aff-0003"><orgDiv>Postgraduate Program in Dentistry</orgDiv> <orgName>Potiguar University</orgName> <orgDiv>School of Dentistry – UnP</orgDiv> <address><city>Natal</city> <countryPart>RN</countryPart> <country>Brazil</country></address></affiliation><affiliation countryCode="BR" type="organization" xml:id="clr2437-aff-0004"><orgDiv>Postgraduate Program in Dentistry</orgDiv> <orgName>UNIGRANRIO University</orgName> <address><city>Duque de Caxias</city> <countryPart>RJ</countryPart> <country>Brazil</country></address></affiliation><affiliation countryCode="US" type="organization" xml:id="clr2437-aff-0005"><orgDiv>Department of Prosthodontics</orgDiv> <orgName>New York University College of Dentistry</orgName> <address><city>New York</city> <countryPart>NY</countryPart> <country>USA</country></address></affiliation></affiliationGroup><keywordGroup type="author"><keyword xml:id="clr2437-kwd-0001">dental implant</keyword><keyword xml:id="clr2437-kwd-0002">fractography</keyword><keyword xml:id="clr2437-kwd-0003">reliability</keyword><keyword xml:id="clr2437-kwd-0004">step‐stress accelerated life‐testing</keyword><keyword xml:id="clr2437-kwd-0005">Weibull</keyword></keywordGroup><fundingInfo><fundingAgency>Emfils</fundingAgency></fundingInfo><fundingInfo><fundingAgency>Emfils, Colosso® Evolution system</fundingAgency></fundingInfo><fundingInfo><fundingAgency>Marotta Dental Studio</fundingAgency></fundingInfo><abstractGroup><abstract type="main" xml:id="clr2437-abs-0001" xml:lang="en"><title type="main">Abstract</title><section xml:id="clr2437-sec-0001"><title type="main">Objectives</title><p>This study evaluated the reliability and failure modes of implants with a microthreaded or smooth design at the crestal region, restored with screwed or cemented crowns. The postulated null hypothesis was that the presence of microthreads in the implant cervical region would not result in different reliability and strength to failure than smooth design, regardless of fixation method, when subjected to step‐stress accelerated life‐testing (<fc>SSALT</fc>) in water.</p></section><section xml:id="clr2437-sec-0002"><title type="main">Materials and methods</title><p>Eighty four dental implants (3.3 × 10 mm) were divided into four groups (<i>n </i>= 21) according to implant macrogeometric design at the crestal region and crown fixation method: Microthreads Screwed (<fc>MS</fc>); Smooth Screwed (<fc>SS</fc>); Microthreads Cemented (<fc>MC</fc>), and Smooth Cemented (<fc>SC</fc>). The abutments were torqued to the implants and standardized maxillary central incisor metallic crowns were cemented (<fc>MC</fc>,<fc> SC</fc>) or screwed (<fc>MS</fc>,<fc> SS</fc>) and subjected to <fc>SSALT</fc> in water. The probability of failure versus cycles (90% two‐sided confidence intervals) was calculated and plotted using a power law relationship for damage accumulation. Reliability for a mission of 50,000 cycles at 150 N (90% 2‐sided confidence intervals) was calculated. Differences between final failure loads during fatigue for each group were assessed by Kruskal–Wallis along with Benferroni's <i>post hoc</i> tests. Polarized‐light and scanning electron microscopes were used for failure analyses.</p></section><section xml:id="clr2437-sec-0003"><title type="main">Results</title><p>The Beta (β) value (confidence interval range) derived from use level probability Weibull calculation of 1.30 (0.76–2.22), 1.17 (0.70–1.96), 1.12 (0.71–1.76), and 0.52 (0.30–0.89) for groups <fc>MC</fc>,<fc> SC</fc>,<fc> MS</fc>, and <fc>SS</fc> respectively, indicated that fatigue was an accelerating factor for all groups, except for <fc>SS</fc>. The calculated reliability was higher for <fc>SC</fc> (99%) compared to <fc>MC</fc> (87%). No difference was observed between screwed restorations (<fc>MS</fc> – 29%, <fc>SS</fc> – 43%). Failure involved abutment screw fracture for all groups. The cemented groups (<fc>MC</fc>,<fc> SC</fc>) presented more abutment and implant fractures. Significantly higher load to fracture values were observed for <fc>SC</fc> and <fc>MC</fc> relative to <fc>MS</fc> and <fc>SS</fc> (<i>P </i>< 0.001).</p></section><section xml:id="clr2437-sec-0004"><title type="main">Conclusion</title><p>Since reliability and strength to failure was higher for <fc>SC</fc> than for <fc>MC</fc>, our postulated null hypothesis was rejected.</p></section></abstract></abstractGroup></contentMeta></header></component></istex:document></istex:metadataXml><mods version="3.6"><titleInfo lang="en"><title>Effect of microthread presence and restoration design (screw versus cemented) in dental implant reliability and failure modes</title></titleInfo><titleInfo type="alternative" contentType="CDATA" lang="en"><title>Effect of microthread presence and restoration design (screw versus cemented) in dental implant reliability and failure modes</title></titleInfo><name type="personal"><namePart type="given">Erika O.</namePart><namePart type="family">Almeida</namePart><affiliation>Department of Dental Material and Prosthodontics, Araçatuba School of Dentistry, Sao Paulo State University – UNESP, Sao Paulo, Brazil</affiliation><role><roleTerm type="text">author</roleTerm></role></name><name type="personal"><namePart type="given">Amilcar C.</namePart><namePart type="family">Freitas Júnior</namePart><affiliation>Postgraduate Program in Dentistry, School of Dentistry – UnP, Potiguar University, RN, Natal, Brazil</affiliation><role><roleTerm type="text">author</roleTerm></role></name><name type="personal"><namePart type="given">Estevam A.</namePart><namePart type="family">Bonfante</namePart><affiliation>Postgraduate Program in Dentistry, UNIGRANRIO University, RJ, Duque de Caxias, Brazil</affiliation><affiliation>Rua Prof. José de Souza Herdy, 1.160 – 25 de Agosto, Duque de Caxias, RJ, Brazil25071‐202Tel.: +55(14) 3234 5805Fax: +55(14) 3234 2566e‐mail:</affiliation><affiliation>E-mail: estevamab@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><affiliation>Department of Dental Material and Prosthodontics, Araçatuba School of Dentistry, Sao Paulo State University – UNESP, Sao Paulo, Brazil</affiliation><role><roleTerm type="text">author</roleTerm></role></name><name type="personal"><namePart type="given">Nelson R. F. A.</namePart><namePart type="family">Silva</namePart><affiliation>Department of Prosthodontics, New York University College of Dentistry, NY, New York, USA</affiliation><role><roleTerm type="text">author</roleTerm></role></name><name type="personal"><namePart type="given">Paulo G.</namePart><namePart type="family">Coelho</namePart><affiliation>Department of Biomaterials and Biomimetics, Director for Research, Department of Periodontology and Implant Dentistry, New York University College of Dentistry, NY, New York, USA</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 Ltd</publisher><dateIssued encoding="w3cdtf">2013-02</dateIssued><dateCreated encoding="w3cdtf">2013-01-15</dateCreated><dateValid encoding="w3cdtf">2012-01-29</dateValid><edition>Almeida EO, Freitas Júnior AC, Bonfante EA, Rocha EP, Silva NRFA, Coelho PG. Effect of microthread presence and restoration design (screw versus cemented) in dental implant reliability and failure modes. Clin. Oral Impl. Res. 24, 2013, 191–196. doi: 10.1111/j.1600-0501.2012.02437.x</edition><copyrightDate encoding="w3cdtf">2013</copyrightDate></originInfo><language><languageTerm type="code" authority="rfc3066">en</languageTerm><languageTerm type="code" authority="iso639-2b">eng</languageTerm></language><abstract>This study evaluated the reliability and failure modes of implants with a microthreaded or smooth design at the crestal region, restored with screwed or cemented crowns. The postulated null hypothesis was that the presence of microthreads in the implant cervical region would not result in different reliability and strength to failure than smooth design, regardless of fixation method, when subjected to step‐stress accelerated life‐testing (SSALT) in water.</abstract><abstract>Eighty four dental implants (3.3 × 10 mm) were divided into four groups (n = 21) according to implant macrogeometric design at the crestal region and crown fixation method: Microthreads Screwed (MS); Smooth Screwed (SS); Microthreads Cemented (MC), and Smooth Cemented (SC). The abutments were torqued to the implants and standardized maxillary central incisor metallic crowns were cemented (MC, SC) or screwed (MS, SS) and subjected to SSALT in water. The probability of failure versus cycles (90% two‐sided confidence intervals) was calculated and plotted using a power law relationship for damage accumulation. Reliability for a mission of 50,000 cycles at 150 N (90% 2‐sided confidence intervals) was calculated. Differences between final failure loads during fatigue for each group were assessed by Kruskal–Wallis along with Benferroni's post hoc tests. Polarized‐light and scanning electron microscopes were used for failure analyses.</abstract><abstract>The Beta (β) value (confidence interval range) derived from use level probability Weibull calculation of 1.30 (0.76–2.22), 1.17 (0.70–1.96), 1.12 (0.71–1.76), and 0.52 (0.30–0.89) for groups MC, SC, MS, and SS respectively, indicated that fatigue was an accelerating factor for all groups, except for SS. The calculated reliability was higher for SC (99%) compared to MC (87%). No difference was observed between screwed restorations (MS – 29%, SS – 43%). Failure involved abutment screw fracture for all groups. The cemented groups (MC, SC) presented more abutment and implant fractures. Significantly higher load to fracture values were observed for SC and MC relative to MS and SS (P < 0.001).</abstract><abstract>Since reliability and strength to failure was higher for SC than for MC, our postulated null hypothesis was rejected.</abstract><note type="funding">Emfils</note><note type="funding">Emfils, Colosso® Evolution system</note><note type="funding">Marotta Dental Studio</note><subject><genre>keywords</genre><topic>dental implant</topic><topic>fractography</topic><topic>reliability</topic><topic>step‐stress accelerated life‐testing</topic><topic>Weibull</topic></subject><relatedItem type="host"><titleInfo><title>Clinical Oral Implants Research</title></titleInfo><titleInfo type="abbreviated"><title>Clin. Oral Impl. Res.</title></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><subject><genre>article-category</genre><topic>Original Article</topic></subject><identifier type="ISSN">0905-7161</identifier><identifier type="eISSN">1600-0501</identifier><identifier type="DOI">10.1111/(ISSN)1600-0501</identifier><identifier type="PublisherID">CLR</identifier><part><date>2013</date><detail type="volume"><caption>vol.</caption><number>24</number></detail><detail type="issue"><caption>no.</caption><number>2</number></detail><extent unit="pages"><start>191</start><end>196</end><total>6</total></extent></part></relatedItem><identifier type="istex">091F6343233415B9186D3D1D76AE18492F0BED8B</identifier><identifier type="ark">ark:/67375/WNG-PRZ7264L-6</identifier><identifier type="DOI">10.1111/j.1600-0501.2012.02437.x</identifier><identifier type="ArticleID">CLR2437</identifier><accessCondition type="use and reproduction" contentType="copyright">Copyright © 2013 John Wiley & Sons A/S© 2012 John Wiley & Sons A/S</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></recordInfo></mods><json:item><extension>json</extension><original>false</original><mimetype>application/json</mimetype><uri>https://api.istex.fr/document/091F6343233415B9186D3D1D76AE18492F0BED8B/metadata/json</uri></json:item></metadata><serie></serie></istex></record>Pour manipuler ce document sous Unix (Dilib)
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