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dc.creatorLežaja, Maja
dc.creatorVeljović, Đorđe
dc.creatorManojlović, Dragica
dc.creatorMilošević, Miloš
dc.creatorMitrović, Nenad
dc.creatorJanaćković, Đorđe
dc.creatorMiletić, Vesna
dc.date.accessioned2021-03-10T12:48:11Z
dc.date.available2021-03-10T12:48:11Z
dc.date.issued2015
dc.identifier.issn0109-5641
dc.identifier.urihttp://TechnoRep.tmf.bg.ac.rs/handle/123456789/3036
dc.description.abstractObjective. To determine the shear bond strength (SBS) between synthetic controlled porous hydroxyapatite (HAP) inserts and restorative materials and dimensional changes of insert-containing restorations during curing. Methods. Cylinder-shaped HAP inserts (4 mm in diameter, 1.6 mm thick) were cemented in dentin discs (5 mm x 1.6 mm), cut mid-coronally from human third molars, using one of the following materials: universal microhybrid composite Filtek Z250, flowable composite Filtek Ultimate or glass-ionomer Vitrebond (all 3M ESPE). SBS of the same materials to HAP inserts was tested in a universal testing machine. Three-dimensional digital image correlation system Aramis (GOM) was used to measure strains and displacements. Data were statistically analyzed using one-way ANOVA with Tukey's post-test (alpha = 0.05). Results. SBS of restorative materials to HAP inserts ranged between 12.2 +/- 2.1 MPa (Filtek Z250) and 0.7 +/- 0.4 MPa (Filtek Z250 without an adhesive). The 'total-etch' approach of adhesive application significantly increased SBS of both Filtek Z250 (12.2 +/- 2.1 MPa) and Filtek Ultimate flowable (9.5 +/- 2.5 MPa) compared to the 'self-etch' approach (8.2 +/- 1.6 MPa and 4.4 +/- 0.9 MPa, respectively) (p lt 0.05). HAP inserts reduced polymerization shrinkage to below 0.5% as well as displacements in the central region of the restorations. Peripheral shrinkage of restorative materials was similar with and without HAP inserts as were displacements of Filtek Z250 and Vitrebond. Significance. Replacing major part of dentin clinically, especially in large cavities, HAP inserts may shorten clinical working time, improve dimensional stability of the restoration by reducing central shrinkage and displacements and provide adhesive bonding to universal composites following a 'total-etch' approach.en
dc.publisherElsevier Sci Ltd, Oxford
dc.relationinfo:eu-repo/grantAgreement/MESTD/Basic Research (BR or ON)/172007/RS//
dc.relationinfo:eu-repo/grantAgreement/MESTD/Integrated and Interdisciplinary Research (IIR or III)/45019/RS//
dc.relationinfo:eu-repo/grantAgreement/MESTD/Technological Development (TD or TR)/35040/RS//
dc.rightsrestrictedAccess
dc.sourceDental Materials
dc.subjectHydroxyapatiteen
dc.subjectInsertsen
dc.subjectBond strengthen
dc.subjectPolymerization shrinkageen
dc.subjectDentinen
dc.subjectCompositeen
dc.subjectGlass-ionomeren
dc.subjectAdhesiveen
dc.titleBond strength of restorative materials to hydroxyapatite inserts and dimensional changes of insert-containing restorations during polymerizationen
dc.typearticle
dc.rights.licenseARR
dc.citation.epage181
dc.citation.issue2
dc.citation.other31(2): 171-181
dc.citation.rankaM21
dc.citation.spage171
dc.citation.volume31
dc.identifier.doi10.1016/j.dental.2014.11.017
dc.identifier.pmid25541508
dc.identifier.rcubconv_4664
dc.identifier.scopus2-s2.0-84920937564
dc.identifier.wos000349759400017
dc.type.versionpublishedVersion


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