Effects of crown retrieval on implants and the surrounding bone: A finite element analysis

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dc.authorid0000-0001-5952-240Xen_US
dc.contributor.authorÖzkir, Serhat Emre
dc.contributor.authorÜnal, Server Mutluay
dc.contributor.authorYürekli, Emel
dc.contributor.authorGüven, Sedat
dc.date.accessioned2023-10-18T05:39:19Z
dc.date.available2023-10-18T05:39:19Z
dc.date.issued2016en_US
dc.departmentDicle Üniversitesi, Diş Hekimliği Fakültesi, Protetik Diş Tedavisi Bölümüen_US
dc.description.abstractPURPOSE. The aim of this study was to observe stress concentration in the implant, the surrounding bone, and other components under the pull-out force during the crown removal. MATERIALS AND METHODS. Two 3-dimensional models of implant-supported conventional metal ceramic crowns were digitally constructed. One model was designed as a vertically placed implant (3.7 mm × 10 mm) with a straight abutment, and the other model was designed as a 30-degree inclined implant (3.7 mm × 10 mm) with an angled abutment. A pull-out force of 40 N was applied to the crown. The stress values were calculated within the dental implant, the abutment, the abutment screw, and the surrounding bone. RESULTS. The highest stress concentration was observed at the coronal portion of the straight implant (9.29 MPa). The stress concentrations at the cortical bone were lower than at the implants, and maximum stress concentration in bone structure was 1.73 MPa. At the abutment screws, the stress concentration levels were similiar (3.09 MPa and 3.44 MPa), but the localizations were different. The stress at the angled abutment was higher than the stress at the straight abutment. CONCLUSION. The pull-out force, applied during a crown removal, did not show an evident effect in bone structure. The higher stress concentrations were mostly observed at the implant and the abutment collar. In addition, the abutment screw, which is the weakest part of an implant system, also showed stress concentrations. Implant angulation affected the stress concentration levels and localizations. Clinical implications . These results will help clinicians understand the mechanical behavior of cement-retained implant-supported crowns during crown retrieval.en_US
dc.identifier.citationÖzkir, S. E., Ünal, S. M., Yürekli, E. ve Güven, S. (2016). Effects of crown retrieval on implants and the surrounding bone: A finite element analysis. Journal of Advanced Prosthodontics, 8(2), 131-136.en_US
dc.identifier.doi10.4047/jap.2016.8.2.131
dc.identifier.endpage136en_US
dc.identifier.issn2005-7806
dc.identifier.issue2en_US
dc.identifier.pmid27141257
dc.identifier.scopus2-s2.0-84973313881
dc.identifier.scopusqualityQ1
dc.identifier.startpage131en_US
dc.identifier.urihttps://jap.or.kr/pdf/10.4047/jap.2016.8.2.131
dc.identifier.urihttps://hdl.handle.net/11468/12836
dc.identifier.volume8en_US
dc.identifier.wosWOS:000375638300008
dc.identifier.wosqualityQ4
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.indekslendigikaynakPubMed
dc.institutionauthorGüven, Sedat
dc.language.isoenen_US
dc.publisherKorean Academy of Prosthodonticen_US
dc.relation.ispartofJournal of Advanced Prosthodontics
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/openAccessen_US
dc.subjectCrownen_US
dc.subjectFEAen_US
dc.subjectImplanten_US
dc.subjectRetrievabilityen_US
dc.titleEffects of crown retrieval on implants and the surrounding bone: A finite element analysisen_US
dc.titleEffects of crown retrieval on implants and the surrounding bone: A finite element analysis
dc.typeArticleen_US

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