IADR Abstract Archives
Effect of MDP Containing Self-Adhesive Cements Bond Strength to Zirconia
Objectives: Introduction: The ceramic primer enables to achieve a strong and adhesive bond between dental hard tissues to restorative materials.
Objective: To evaluate the effect on the shear bond strength of MDP containing self-adhesive resin cements on Zirconia substrate with or without application of ceramic primer.
Methods: Materials and Methods: Sixty Zirconia plates were mounted in acrylic, surface finished to a flat surface (320 grit) using SiC paper, sand blasted (Al2O3-50 μm at 1 Bar pressure) and cleaned ultrasonically for 10 minutes. Zirconia specimens were randomly divided in 6 groups (n=10). Composite rods Tetric EvoCeram (Shade-A1)/(Ivoclar Vivadent)/(Diameter-2.6 mm) were prepared and treated-Sand blasted (50 μm silica) + H3PO4 (15 seconds) + Adhese Universal (15 seconds) + light cured (10 seconds). Three MDP containing self-adhesive resin cements (Experimental Self-Adhesive resin Cement/Ivoclar Vivadent (ES), Rely X Unicem 2/3M ESPE (RU), Maxcem Elite/Kerr (ME)) were evaluated. Composite rods were cemented to zirconia plates under constant load (113.4 grams) using 3 self-adhesive resin cements with/without primer (Monobond Plus/Ivoclar Vivadent). Specimens were light cured (Bluephase Style/Ivoclar Vivadent) as per manufacturer’s recommendations and were stored in incubator for 24 hours (37°C/100% humidity). Specimens were tested in a universal testing machine (Instron) at a crosshead speed of 1 mm/min. Mean shear bond strength data was analyzed using factorial analysis of variance (p<0.05).
Results: There was a statistical significant difference in bond strength of ES and ME with use of Monobond Plus primer (p<0.05). There was a significant difference in bond strength of all the three self-adhesive cements without the use of Monobond Plus primer (p<0.05)
Conclusions: Conclusion: Significant difference in shear bond strength was observed between tested self-adhesive resin cements. The application of ceramic primer improved bond strength of Maxcem Elite. This study was supported by Ivoclar Vivadent.
Objective: To evaluate the effect on the shear bond strength of MDP containing self-adhesive resin cements on Zirconia substrate with or without application of ceramic primer.
Methods: Materials and Methods: Sixty Zirconia plates were mounted in acrylic, surface finished to a flat surface (320 grit) using SiC paper, sand blasted (Al2O3-50 μm at 1 Bar pressure) and cleaned ultrasonically for 10 minutes. Zirconia specimens were randomly divided in 6 groups (n=10). Composite rods Tetric EvoCeram (Shade-A1)/(Ivoclar Vivadent)/(Diameter-2.6 mm) were prepared and treated-Sand blasted (50 μm silica) + H3PO4 (15 seconds) + Adhese Universal (15 seconds) + light cured (10 seconds). Three MDP containing self-adhesive resin cements (Experimental Self-Adhesive resin Cement/Ivoclar Vivadent (ES), Rely X Unicem 2/3M ESPE (RU), Maxcem Elite/Kerr (ME)) were evaluated. Composite rods were cemented to zirconia plates under constant load (113.4 grams) using 3 self-adhesive resin cements with/without primer (Monobond Plus/Ivoclar Vivadent). Specimens were light cured (Bluephase Style/Ivoclar Vivadent) as per manufacturer’s recommendations and were stored in incubator for 24 hours (37°C/100% humidity). Specimens were tested in a universal testing machine (Instron) at a crosshead speed of 1 mm/min. Mean shear bond strength data was analyzed using factorial analysis of variance (p<0.05).
Results: There was a statistical significant difference in bond strength of ES and ME with use of Monobond Plus primer (p<0.05). There was a significant difference in bond strength of all the three self-adhesive cements without the use of Monobond Plus primer (p<0.05)
Conclusions: Conclusion: Significant difference in shear bond strength was observed between tested self-adhesive resin cements. The application of ceramic primer improved bond strength of Maxcem Elite. This study was supported by Ivoclar Vivadent.