Effect of Different Surface Treatments on the Bond Strength of Lithium Disilicate Ceramic to the Zirconia Core

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dc.contributor.authorYilmaz-Savas, Tuba
dc.contributor.authorDemir, Necla
dc.contributor.authorOzturk, A. Nilgun
dc.contributor.authorKilic, Hamdi Sukur
dc.date.accessioned2020-03-26T19:23:43Z
dc.date.available2020-03-26T19:23:43Z
dc.date.issued2016
dc.departmentSelçuk Üniversitesien_US
dc.description.abstractObjective:The aim of this study was to evaluate the effect of different surface treatments [sandblasting, Erbium:Yttrium-Aluminium-Garnet (Er:YAG), and femtosecond lasers] on the shear bond strength (SBS) of the CAD-on technique. Background data:Although demand for all-ceramic restorations has increased, chipping remains one of the major problems for zirconia-based restorations. Materials and methods:Forty yttrium-stabilized tetragonal zirconia polycrystalline (Y-TZP) zirconia plates (IPS e.max ZirCAD, Ivoclar Vivadent) were cut, sintered (12.4 x 11.4 x 3 mm) and divided into four groups according to the surface treatments (n = 10): a control group with no surface treatment (Group C), sandblasting with 50 mu m Al2O3 (Group S), Er:YAG laser irradiation (Group E), and femtosecond laser irradiation (Group F). Also, 40 cylindrical (5mm diameter, 2mm height) lithium disilicate (IPS e.max CAD) veneer ceramics were cut and fused to all zirconia cores by a glassfusion ceramic and crystallized according to the CAD-on technique. Specimens were subjected to shear force using a universal testing machine. The load was applied at a crosshead speed of 0.5 mm/min until failure. Mean SBS (MPa) were analyzed with one way ANOVA (p < 0.05). The failed specimens were examined under a stereomicroscope at x 20 to classify the mode of failure. Results:The highest SBS was observed in Group F (36 +/- 3.31 MPa), followed by Group S (33.03 +/- 5.05 MPa), and Group C (32.52 +/- 10.15 MPa). The lowest SBS was observed in Group E (31.02 +/- 4.96 MPa), but no significant differences were found between the control and surface treated groups (p = 0.377). All the specimens showed a mixed type of failure. Conclusions: Femtosecond laser application increased the bond strength between zirconia-veneer specimens. However, the novel CAD-on technique with no surface treatment also showed high bonding strength. Thus, this technique could prevent ceramic chipping without additional surface treatments.en_US
dc.identifier.doi10.1089/pho.2015.4063en_US
dc.identifier.endpage243en_US
dc.identifier.issn1549-5418en_US
dc.identifier.issn1557-8550en_US
dc.identifier.issue6en_US
dc.identifier.pmid27096900en_US
dc.identifier.scopusqualityN/Aen_US
dc.identifier.startpage236en_US
dc.identifier.urihttps://dx.doi.org/10.1089/pho.2015.4063
dc.identifier.urihttps://hdl.handle.net/20.500.12395/33477
dc.identifier.volume34en_US
dc.identifier.wosWOS:000377403000004en_US
dc.identifier.wosqualityQ3en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.indekslendigikaynakPubMeden_US
dc.language.isoenen_US
dc.publisherMARY ANN LIEBERT, INCen_US
dc.relation.ispartofPHOTOMEDICINE AND LASER SURGERYen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.selcuk20240510_oaigen_US
dc.titleEffect of Different Surface Treatments on the Bond Strength of Lithium Disilicate Ceramic to the Zirconia Coreen_US
dc.typeArticleen_US

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