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2012, vol. 16, br. 3, str. 173-178
Bond strength of resin cements to zirconia ceramics with different surface treatments
(naslov ne postoji na srpskom)
aPrivate Practice, Ankara, Turkey
bUniversity of Selçuk, Faculty of Dentistry, Department of Prosthodontics, Konya, Turkey

e-adresaa.uludamar@superonline.com
Sažetak
(ne postoji na srpskom)
Purpose: To evaluate the influence of different surface preparation methods on the bond strength of 2 composite resins to zirconium oxide ceramic restorations. Material and Methods: 80 specimens 2 mm thickness of IPS e.max ZirCAD blocks were prepared and divided into 4 groups. The first group was left as a control (C). In the second group, specimens were treated with sand blasting (SB). In the third group, specimens were treated with roughening the surfaces with diamond burs (DB). Laser irradiation was applied for the last group (LI). Specimens were divided into 2 subgroups (n: 10) for each surface treatment protocol followed by the application of 2 resin cements: Multilink Automix (MA) and Multilink Sprint (MS). The shear bond strength was measured using the universal testing machine with a crosshead speed of 0.5 mm/min. The retentions force required to remove the specimens was recorded. After debonding of specimens, the fractured surfaces were evaluated with an optical microscope to classify the failure modes and selected specimens for each group were examined in a scanning electron microscope for determining interfacial morphologies of surface treatment. Data were submitted to 2-way ANOVA, Kruskal-Wallis and Mann-Whitney U tests (P<.05). Results: The bond strengths were significantly influenced by the resin cement and surface treatment (P<.05). Both cements showed the highest bond strength values when specimens were treated with sandblasting. The bond strength of the MA adhesive cement to the sandblasted zirconia resulted in the highest bond strength values (5.42 ± 1.28 MPa). Conclusions: Applying sandblasting surface treatment improves the bond strength of self- adhesive resin cement to zirconia.
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O članku

jezik rada: engleski
vrsta rada: izvorni članak
objavljen u SCIndeksu: 12.12.2012.

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