Failure Modes and Survival of Anterior Crowns Supported by Narrow Implant Systems
The reduced hardware design of narrow implants increases the risk of fracture not only of the implant itself but also of the prosthetic constituents. Hence, the current study is aimed at estimating the probability of survival of anterior crowns supported by different narrow implant systems. Three di...
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| creator | Bonfante, Estevam A. Zahoui, Abbas Coelho, Paulo G. Lopes, Adolfo C. O. de Araújo-Júnior, Everardo N. S. Bergamo, Edmara T. P. Benalcázar Jalkh, Ernesto B. |
| description | The reduced hardware design of narrow implants increases the risk of fracture not only of the implant itself but also of the prosthetic constituents. Hence, the current study is aimed at estimating the probability of survival of anterior crowns supported by different narrow implant systems. Three different narrow implant systems of internal conical connections were evaluated (Ø3.5×10 mm): (i) Active (Nobel Biocare), (ii) Epikut (S.I.N. Implant System), and (iii) BLX (Straumann). Abutments were torqued to the implants, and standardized maxillary incisor crowns were cemented. The assemblies were subjected to step-stress accelerated life testing (SSALT) in water through load application of 30 degrees off-axis lingually at the incisal edge of the crowns using a flat tungsten carbide indenter until fracture or suspension. The use level probability Weibull curves and reliability for completion of a mission of 100,000 cycles at 80 N and 120 N were calculated and plotted. Weibull modulus and characteristic strength were also calculated and plotted. Fractured samples were analyzed in a stereomicroscope. The beta (β) values were 1.6 (0.9-3.1) and 1.4 (0.9-2.2) for BLX and Active implants, respectively, and 0.5 (0.3-0.8) for the Epikut implant, indicating that failures were mainly associated with fatigue damage accumulation in the formers, but more likely associated with material strength in the latter. All narrow implant systems showed high probability of survival (≥95%, CI: 85-100%) at 80 and 120 N, without significant difference between them. Weibull modulus ranged from 6 to 14. The characteristic strength of Active, Epikut, and BLX was 271 (260-282) N, 216 (205-228) N, and 275 (264-285) N, respectively. The failure mode predominantly involved abutment and/or abutment screw fracture, whereas no narrow implant was fractured. Therefore, all narrow implant systems exhibited a high probability of survival for anterior physiologic masticatory forces, and failures were restricted to abutment and abutment screw. |
| doi_str_mv | 10.1155/2020/1057846 |
| format | Article |
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O. ; de Araújo-Júnior, Everardo N. S. ; Bergamo, Edmara T. P. ; Benalcázar Jalkh, Ernesto B.</creator><contributor>Lerner, Henriette ; Henriette Lerner</contributor><creatorcontrib>Bonfante, Estevam A. ; Zahoui, Abbas ; Coelho, Paulo G. ; Lopes, Adolfo C. O. ; de Araújo-Júnior, Everardo N. S. ; Bergamo, Edmara T. P. ; Benalcázar Jalkh, Ernesto B. ; Lerner, Henriette ; Henriette Lerner</creatorcontrib><description>The reduced hardware design of narrow implants increases the risk of fracture not only of the implant itself but also of the prosthetic constituents. Hence, the current study is aimed at estimating the probability of survival of anterior crowns supported by different narrow implant systems. Three different narrow implant systems of internal conical connections were evaluated (Ø3.5×10 mm): (i) Active (Nobel Biocare), (ii) Epikut (S.I.N. Implant System), and (iii) BLX (Straumann). Abutments were torqued to the implants, and standardized maxillary incisor crowns were cemented. The assemblies were subjected to step-stress accelerated life testing (SSALT) in water through load application of 30 degrees off-axis lingually at the incisal edge of the crowns using a flat tungsten carbide indenter until fracture or suspension. The use level probability Weibull curves and reliability for completion of a mission of 100,000 cycles at 80 N and 120 N were calculated and plotted. Weibull modulus and characteristic strength were also calculated and plotted. Fractured samples were analyzed in a stereomicroscope. The beta (β) values were 1.6 (0.9-3.1) and 1.4 (0.9-2.2) for BLX and Active implants, respectively, and 0.5 (0.3-0.8) for the Epikut implant, indicating that failures were mainly associated with fatigue damage accumulation in the formers, but more likely associated with material strength in the latter. All narrow implant systems showed high probability of survival (≥95%, CI: 85-100%) at 80 and 120 N, without significant difference between them. Weibull modulus ranged from 6 to 14. The characteristic strength of Active, Epikut, and BLX was 271 (260-282) N, 216 (205-228) N, and 275 (264-285) N, respectively. The failure mode predominantly involved abutment and/or abutment screw fracture, whereas no narrow implant was fractured. Therefore, all narrow implant systems exhibited a high probability of survival for anterior physiologic masticatory forces, and failures were restricted to abutment and abutment screw.</description><identifier>ISSN: 2314-6133</identifier><identifier>EISSN: 2314-6141</identifier><identifier>DOI: 10.1155/2020/1057846</identifier><identifier>PMID: 32964016</identifier><language>eng</language><publisher>Cairo, Egypt: Hindawi Publishing Corporation</publisher><subject>Accelerated life tests ; Accelerated tests ; Biomechanics ; Crowns ; Damage accumulation ; Dental Abutments ; Dental Implant-Abutment Design - methods ; Dental prosthetics ; Dental Restoration Failure ; Dental Stress Analysis - methods ; Failure ; Failure modes ; Fatigue failure ; Fractures ; Humans ; Incisor - chemistry ; Mastication ; Materials Testing - methods ; Mathematical analysis ; Maxilla - chemistry ; Microscopy, Electron, Scanning - methods ; Parameter estimation ; Probability ; Prostheses ; Prostheses and Implants ; Reproducibility of Results ; Stress, Mechanical ; Surface Properties ; Surgical implants ; Survival ; Torque ; Transplants & implants ; Tungsten ; Tungsten carbide ; Water - chemistry ; Weibull modulus</subject><ispartof>BioMed research international, 2020, Vol.2020 (2020), p.1-11</ispartof><rights>Copyright © 2020 Edmara T. P. Bergamo et al.</rights><rights>Copyright © 2020 Edmara T. P. Bergamo et al. This is an open access article distributed under the Creative Commons Attribution License (the “License”), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License. https://creativecommons.org/licenses/by/4.0</rights><rights>Copyright © 2020 Edmara T. P. Bergamo et al. 2020</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c471t-e497fd693086b528c90bb4afa016097c4fe8eac274f3a893e6382170e281eb3e3</citedby><cites>FETCH-LOGICAL-c471t-e497fd693086b528c90bb4afa016097c4fe8eac274f3a893e6382170e281eb3e3</cites><orcidid>0000-0001-8347-6124 ; 0000-0001-6867-8350 ; 0000-0002-5006-2184 ; 0000-0002-7184-8485 ; 0000-0001-6916-1564 ; 0000-0002-5769-6913 ; 0000-0003-4528-4855</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://www.ncbi.nlm.nih.gov/pmc/articles/PMC7495162/pdf/$$EPDF$$P50$$Gpubmedcentral$$Hfree_for_read</linktopdf><linktohtml>$$Uhttps://www.ncbi.nlm.nih.gov/pmc/articles/PMC7495162/$$EHTML$$P50$$Gpubmedcentral$$Hfree_for_read</linktohtml><link.rule.ids>230,314,727,780,784,885,4024,27923,27924,27925,53791,53793</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/32964016$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><contributor>Lerner, Henriette</contributor><contributor>Henriette Lerner</contributor><creatorcontrib>Bonfante, Estevam A.</creatorcontrib><creatorcontrib>Zahoui, Abbas</creatorcontrib><creatorcontrib>Coelho, Paulo G.</creatorcontrib><creatorcontrib>Lopes, Adolfo C. O.</creatorcontrib><creatorcontrib>de Araújo-Júnior, Everardo N. S.</creatorcontrib><creatorcontrib>Bergamo, Edmara T. P.</creatorcontrib><creatorcontrib>Benalcázar Jalkh, Ernesto B.</creatorcontrib><title>Failure Modes and Survival of Anterior Crowns Supported by Narrow Implant Systems</title><title>BioMed research international</title><addtitle>Biomed Res Int</addtitle><description>The reduced hardware design of narrow implants increases the risk of fracture not only of the implant itself but also of the prosthetic constituents. Hence, the current study is aimed at estimating the probability of survival of anterior crowns supported by different narrow implant systems. Three different narrow implant systems of internal conical connections were evaluated (Ø3.5×10 mm): (i) Active (Nobel Biocare), (ii) Epikut (S.I.N. Implant System), and (iii) BLX (Straumann). Abutments were torqued to the implants, and standardized maxillary incisor crowns were cemented. The assemblies were subjected to step-stress accelerated life testing (SSALT) in water through load application of 30 degrees off-axis lingually at the incisal edge of the crowns using a flat tungsten carbide indenter until fracture or suspension. The use level probability Weibull curves and reliability for completion of a mission of 100,000 cycles at 80 N and 120 N were calculated and plotted. Weibull modulus and characteristic strength were also calculated and plotted. Fractured samples were analyzed in a stereomicroscope. The beta (β) values were 1.6 (0.9-3.1) and 1.4 (0.9-2.2) for BLX and Active implants, respectively, and 0.5 (0.3-0.8) for the Epikut implant, indicating that failures were mainly associated with fatigue damage accumulation in the formers, but more likely associated with material strength in the latter. All narrow implant systems showed high probability of survival (≥95%, CI: 85-100%) at 80 and 120 N, without significant difference between them. Weibull modulus ranged from 6 to 14. The characteristic strength of Active, Epikut, and BLX was 271 (260-282) N, 216 (205-228) N, and 275 (264-285) N, respectively. The failure mode predominantly involved abutment and/or abutment screw fracture, whereas no narrow implant was fractured. Therefore, all narrow implant systems exhibited a high probability of survival for anterior physiologic masticatory forces, and failures were restricted to abutment and abutment screw.</description><subject>Accelerated life tests</subject><subject>Accelerated tests</subject><subject>Biomechanics</subject><subject>Crowns</subject><subject>Damage accumulation</subject><subject>Dental Abutments</subject><subject>Dental Implant-Abutment Design - methods</subject><subject>Dental prosthetics</subject><subject>Dental Restoration Failure</subject><subject>Dental Stress Analysis - methods</subject><subject>Failure</subject><subject>Failure modes</subject><subject>Fatigue failure</subject><subject>Fractures</subject><subject>Humans</subject><subject>Incisor - chemistry</subject><subject>Mastication</subject><subject>Materials Testing - methods</subject><subject>Mathematical analysis</subject><subject>Maxilla - chemistry</subject><subject>Microscopy, Electron, Scanning - methods</subject><subject>Parameter estimation</subject><subject>Probability</subject><subject>Prostheses</subject><subject>Prostheses and Implants</subject><subject>Reproducibility of Results</subject><subject>Stress, Mechanical</subject><subject>Surface Properties</subject><subject>Surgical implants</subject><subject>Survival</subject><subject>Torque</subject><subject>Transplants & implants</subject><subject>Tungsten</subject><subject>Tungsten carbide</subject><subject>Water - chemistry</subject><subject>Weibull modulus</subject><issn>2314-6133</issn><issn>2314-6141</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2020</creationdate><recordtype>article</recordtype><sourceid>RHX</sourceid><sourceid>EIF</sourceid><sourceid>ABUWG</sourceid><sourceid>AFKRA</sourceid><sourceid>AZQEC</sourceid><sourceid>BENPR</sourceid><sourceid>CCPQU</sourceid><sourceid>DWQXO</sourceid><sourceid>GNUQQ</sourceid><recordid>eNqNks9L5DAUx4O4qLjePC-BvQg6mt9NLwsyqCvoLqKeQ9q-rpG2qUk7Mv-9KTM7q3sylxfe-_Dlffk-hA4pOaVUyjNGGDmjRGZaqC20xzgVM0UF3d78Od9FBzE-k_Q0VSRXO2iXs1wJQtUeuru0rhkD4FtfQcS2q_D9GBZuYRvsa3zeDRCcD3ge_GsX06zvfRigwsUS_7IhdfF12ze2G_D9Mg7Qxq_oS22bCAfruo8eLy8e5j9nN7-vrufnN7NSZHSYgcizulI5J1oVkukyJ0UhbG3JtGRWiho02JJlouZW5xwU14xmBJimUHDg--jHSrcfixaqEroh2Mb0wbU2LI23znycdO7J_PELk4lcUsWSwNFaIPiXEeJgWhdLaJIZ8GM0TAgpGM_lhH7_D332Y-iSvYkSTBMmZaJOVlQZfIwB6s0ylJgpLjPFZdZxJfzbewMb-G84CTheAU-uq-yr-6QcJAZq-4-m6RJoxt8ApOCmAA</recordid><startdate>2020</startdate><enddate>2020</enddate><creator>Bonfante, Estevam A.</creator><creator>Zahoui, Abbas</creator><creator>Coelho, Paulo G.</creator><creator>Lopes, Adolfo C. 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O. ; de Araújo-Júnior, Everardo N. S. ; Bergamo, Edmara T. 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O.</au><au>de Araújo-Júnior, Everardo N. S.</au><au>Bergamo, Edmara T. P.</au><au>Benalcázar Jalkh, Ernesto B.</au><au>Lerner, Henriette</au><au>Henriette Lerner</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Failure Modes and Survival of Anterior Crowns Supported by Narrow Implant Systems</atitle><jtitle>BioMed research international</jtitle><addtitle>Biomed Res Int</addtitle><date>2020</date><risdate>2020</risdate><volume>2020</volume><issue>2020</issue><spage>1</spage><epage>11</epage><pages>1-11</pages><issn>2314-6133</issn><eissn>2314-6141</eissn><abstract>The reduced hardware design of narrow implants increases the risk of fracture not only of the implant itself but also of the prosthetic constituents. Hence, the current study is aimed at estimating the probability of survival of anterior crowns supported by different narrow implant systems. Three different narrow implant systems of internal conical connections were evaluated (Ø3.5×10 mm): (i) Active (Nobel Biocare), (ii) Epikut (S.I.N. Implant System), and (iii) BLX (Straumann). Abutments were torqued to the implants, and standardized maxillary incisor crowns were cemented. The assemblies were subjected to step-stress accelerated life testing (SSALT) in water through load application of 30 degrees off-axis lingually at the incisal edge of the crowns using a flat tungsten carbide indenter until fracture or suspension. The use level probability Weibull curves and reliability for completion of a mission of 100,000 cycles at 80 N and 120 N were calculated and plotted. Weibull modulus and characteristic strength were also calculated and plotted. Fractured samples were analyzed in a stereomicroscope. The beta (β) values were 1.6 (0.9-3.1) and 1.4 (0.9-2.2) for BLX and Active implants, respectively, and 0.5 (0.3-0.8) for the Epikut implant, indicating that failures were mainly associated with fatigue damage accumulation in the formers, but more likely associated with material strength in the latter. All narrow implant systems showed high probability of survival (≥95%, CI: 85-100%) at 80 and 120 N, without significant difference between them. Weibull modulus ranged from 6 to 14. The characteristic strength of Active, Epikut, and BLX was 271 (260-282) N, 216 (205-228) N, and 275 (264-285) N, respectively. The failure mode predominantly involved abutment and/or abutment screw fracture, whereas no narrow implant was fractured. Therefore, all narrow implant systems exhibited a high probability of survival for anterior physiologic masticatory forces, and failures were restricted to abutment and abutment screw.</abstract><cop>Cairo, Egypt</cop><pub>Hindawi Publishing Corporation</pub><pmid>32964016</pmid><doi>10.1155/2020/1057846</doi><tpages>11</tpages><orcidid>https://orcid.org/0000-0001-8347-6124</orcidid><orcidid>https://orcid.org/0000-0001-6867-8350</orcidid><orcidid>https://orcid.org/0000-0002-5006-2184</orcidid><orcidid>https://orcid.org/0000-0002-7184-8485</orcidid><orcidid>https://orcid.org/0000-0001-6916-1564</orcidid><orcidid>https://orcid.org/0000-0002-5769-6913</orcidid><orcidid>https://orcid.org/0000-0003-4528-4855</orcidid><oa>free_for_read</oa></addata></record> |
| fulltext | fulltext |
| identifier | ISSN: 2314-6133 |
| ispartof | BioMed research international, 2020, Vol.2020 (2020), p.1-11 |
| issn | 2314-6133 2314-6141 |
| language | eng |
| recordid | cdi_pubmedcentral_primary_oai_pubmedcentral_nih_gov_7495162 |
| source | MEDLINE; PubMed Central Open Access; Wiley Online Library (Open Access Collection); PubMed Central; Alma/SFX Local Collection |
| subjects | Accelerated life tests Accelerated tests Biomechanics Crowns Damage accumulation Dental Abutments Dental Implant-Abutment Design - methods Dental prosthetics Dental Restoration Failure Dental Stress Analysis - methods Failure Failure modes Fatigue failure Fractures Humans Incisor - chemistry Mastication Materials Testing - methods Mathematical analysis Maxilla - chemistry Microscopy, Electron, Scanning - methods Parameter estimation Probability Prostheses Prostheses and Implants Reproducibility of Results Stress, Mechanical Surface Properties Surgical implants Survival Torque Transplants & implants Tungsten Tungsten carbide Water - chemistry Weibull modulus |
| title | Failure Modes and Survival of Anterior Crowns Supported by Narrow Implant Systems |
| url | https://sfx.bib-bvb.de/sfx_tum?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&ctx_tim=2024-12-28T18%3A55%3A43IST&url_ver=Z39.88-2004&url_ctx_fmt=infofi/fmt:kev:mtx:ctx&rfr_id=info:sid/primo.exlibrisgroup.com:primo3-Article-proquest_pubme&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.atitle=Failure%20Modes%20and%20Survival%20of%20Anterior%20Crowns%20Supported%20by%20Narrow%20Implant%20Systems&rft.jtitle=BioMed%20research%20international&rft.au=Bonfante,%20Estevam%20A.&rft.date=2020&rft.volume=2020&rft.issue=2020&rft.spage=1&rft.epage=11&rft.pages=1-11&rft.issn=2314-6133&rft.eissn=2314-6141&rft_id=info:doi/10.1155/2020/1057846&rft_dat=%3Cproquest_pubme%3E2444280255%3C/proquest_pubme%3E%3Curl%3E%3C/url%3E&disable_directlink=true&sfx.directlink=off&sfx.report_link=0&rft_id=info:oai/&rft_pqid=2444280255&rft_id=info:pmid/32964016&rfr_iscdi=true |