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KMID : 1023820210130050292
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The Journal of Advanced Prosthodontics
2021 Volume.13 No. 5 p.292 ~ p.303
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The effect of silane and universal adhesives on the micro-shear bond strength of current resin-matrix ceramics
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Sarahneh Omar
Gunal-Abduljalil Burcu
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Abstract
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PURPOSE: The aim of this in vitro study was to evaluate the effect of silane and universal adhesive applications on the micro-shear bond strength (μSBS) of different resin-matrix ceramics (RMCs).
MATERIALS AND METHODS: A total of 120 slides (14 × 12 × 1 mm) were produced from 5 different RMC materials (GC Cerasmart [GC]; Brilliant Crios [BC]; Grandio blocs [GB]; Katana Avencia [KA]; and KZR-CAD HR 2 [KZR]) and sandblasted using 50 μm Al2O3 particles. Each RMC material was divided into six groups according to the surface conditioning (SC) method as follows: control (G1), silane primer (G2), silane-free universal adhesive (G3), silane-containing universal adhesive (G4), silane primer and silane-free universal adhesive (G5), and silane primer and silane-containing universal adhesive (G6). Three cylindric specimens made from resin cement (Bifix QM) were polymerized over the treated surface of each slide (n = 12). After thermal cycling (10000 cycles, 5 ? 55℃), μSBS test was performed and failure types were evaluated using a stereomicroscope. Data were analyzed using 2-way ANOVA and Tukey tests (α = .05).
RESULTS: μSBS values of specimens were significantly affected by the RMC type and SC protocols (P < .001) except the interaction (P = .119). Except for G2, all SC protocols showed a significant increase in μSBS values (P < .05). For all RMCs, the highest μSBS values were obtained in G4 and G6 groups.
CONCLUSION: Only silane application did not affect the μSBS values regardless of the RMC type. Moreover, the application of a separate silane in addition to the universal adhesives did not improve the μSBS values. Silane-containing universal adhesive was found to be the best conditioning method for RMCs.
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KEYWORD
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Adhesives, CAD-CAM, Resin cements, Silanes
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