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dc.contributor.authorOguz, Ece Irem
dc.contributor.authorOzgur, Merve Erdog
dc.contributor.authorSungur, Sercan
dc.contributor.authorUctasli, Sadullah
dc.date.accessioned2021-05-16T17:05:23Z
dc.date.available2021-05-16T17:05:23Z
dc.date.issued2020
dc.identifier.issn2005-7806en_US
dc.identifier.urihttps://jap.or.kr/Synapse/Data/PDFData/0170JAP/jap-12-197.pdf
dc.identifier.urihttp://hdl.handle.net/11727/5880
dc.description.abstractPURPOSE. The aim of this study was to evaluate the effect of multiple firings on the bond strength between yttria-tetragonal zirconia polycrystals (Y-TZP) and 2 types of resin cements. MATERIALS AND METHODS. Sixty 3Y-TZP specimens (LAVA Frame Multi) were divided into 3 groups depending on the following firing procedures: (1) 2-firing cycles, (2) 5-firing cycles, (3) 10-firing cycles. Two samples from each group were investigated by using SEM to determine the morphological changes. All specimens were treated with 125 mu m airborne-particle abrasion and the surface roughness of each specimen was measured. The specimens from each firing group were then further divided into 2 subgroups (n = 9) to apply 2 types of resin cement (MDP-free resin cement: RelyX Unicem-RU, and MDP containing resin cement: Panavia F 2.0-PA). The shear bond strength (SBS) test was performed and failure types of all the debonded specimens were classified by using a stereomicroscope as adhesive, cohesive, and mixed. The statistical analysis of surface roughness and SBS data were performed by using 1-way ANOVA and 2-way ANOVA followed by Tukey-HSD tests (r=.05). Failure modes were calculated as a percentage for each group. RESULTS. The bond strength of RU and PA to the specimens obtained with 2 firings were not statistically different from each other (P=.1). However, the SBS values of PA were found to be significantly higher than RU for the specimens obtained with 5 and 10 firing cycles (P=.001 and respectively). Surface roughness analysis revealed no statistical difference between groups (P=.2). The SEM analysis of samples fired 5- and 10- times showed irregularities and boundary loss in zirconia grains, and empty spaces between zirconia grains. CONCLUSION. The bond strength of PA cement was higher than that of RU to the zirconia subjected to repeated firings (5 and 10 firing cycles). When zirconia is subjected to multiple firings, using MDP-containing resin cement can be recommended.en_US
dc.language.isoengen_US
dc.relation.isversionof10.4047/jap.2020.12.4.197en_US
dc.rightsinfo:eu-repo/semantics/openAccessen_US
dc.subjectYttriatetragonal zirconia polycrystals (Y-TZP)en_US
dc.subjectZirconiaen_US
dc.subjectRepated-firingen_US
dc.subjectBond strengthen_US
dc.titleImpact of multiple firings and resin cement type on shear bond strength between zirconia and resin cementsen_US
dc.typearticleen_US
dc.relation.journalJOURNAL OF ADVANCED PROSTHODONTICSen_US
dc.identifier.volume12en_US
dc.identifier.issue4en_US
dc.identifier.startpage197en_US
dc.identifier.endpage203en_US
dc.identifier.wos000563020000003en_US
dc.identifier.scopus2-s2.0-85090158533en_US
dc.contributor.pubmedID32879709en_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergien_US


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