Effect of Decontamination and Cleaning on the Shear Bond Strength of High Translucency Zirconia
Abstract(1) Background: This study evaluated the bonding performance of high translucency zirconia after diverse surficial decontamination and cleaning procedures. (2) Methods: High translucency zirconia (LavaTM Esthetic) specimens (2.0 mm × 20 mm × 10 mm) were exposed to different surface treatments prior to bonding to CoCr cylinders (d = 5 mm, height = 3 mm). All surfaces were sandblasted (40 µm aluminum oxide, 2 bar) and treated with alcohol (al), saliva (s), saliva + water (sw), or saliva + NaOCl + water (sn) before bonding was performed with the following adhesive luting systems: RelyXTM Unicem 2 (RX), ScotchbondTM Universal (SBU) + RelyXTM Ultimate (RU) or Monobond Plus (MP) + Multilink® Automix (ML). After 24 h, thermocycling (TC:12,000 × 5 °C/55 °C) and 90 days of storage at 37 °C in distilled water, the shear bond strength (SBS) was evaluated according to ISO/TS 11,405:2015. Failure modes along bonding areas were characterized. Means and standard deviations (n = 10 per group) were determined and statistically analyzed with one-way ANOVA/Bonferroni (α = 0.05). (3) Results: The SBS after 24 h varied between 3.5 (sRX) and 69.4 MPa (snMP + ML). Values from 0 (sRX) to 70.3 MPa (swRX) were found after TC. Data after 90 days of storage showed the lowest values for sRX (0 MPa) and the highest values for alSBU + RU (75.5 MPa). Adhesive failure was noted at all aging conditions. (4) Conclusions: SBU + RU or RX and MP + ML including saliva decontamination of the ceramic surface with water or NaOCl + water allow efficient bonding to LavaTM Esthetic. View Full-Text
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Krifka, S.; Preis, V.; Rosentritt, M. Effect of Decontamination and Cleaning on the Shear Bond Strength of High Translucency Zirconia. Dent. J. 2017, 5, 32.
Krifka S, Preis V, Rosentritt M. Effect of Decontamination and Cleaning on the Shear Bond Strength of High Translucency Zirconia. Dentistry Journal. 2017; 5(4):32.Chicago/Turabian Style
Krifka, Stephanie; Preis, Verena; Rosentritt, Martin. 2017. "Effect of Decontamination and Cleaning on the Shear Bond Strength of High Translucency Zirconia." Dent. J. 5, no. 4: 32.
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