Effect of silanization on shear bond strength between high translucency zirconia and resin cement

Abstract

Aim: This in-viro study aimed to evaluate and compare the shear bond strength of resin cement with high translucency zirconia with silane coupling agents and bonding agent separately (Group3), bonding agent containing silane (Group 2) and bonding agent which does not have silane (Group 1). Materials and Methods: The study was conducted by using the high translucency zirconia blanks along with the CAD-CAM equipments. After sintering the specimens according to manufacturer’s instructions surface modifications, bonding procedures and evaluation of bond strength was performed. Bond strength of the samples was tested using universal testing machine. The results were analyzed statistically using descriptive analysis. Results: The mean shear bond strength obtained for group 1, group 2 and group 3 was 17.97, 22.01, 28.87MPA respectively. The SBS of group 3 was significantly higher than the other two groups as the surface of zirconia was treated with both Silane and Silane-containing universal adhesive. Conclusion: The null hypothesis was rejected. Within the limitations of the study, it was concluded that the shear bond strength between resin cement and high translucency zirconia was highest when treated with bonding agent (universal adhesive) and silane coupling agent separately after air particle abrasion.

comparative evaluation of shear bond strength of directly bonded brackets using three varieties of light cure systems

“…Few Studies [3,4,9,10,11] have found no difference in bond failures with Low Intensity LEDs over Halogen Light Cure Systems. Though SBS with use of High Intensity LEDs and Low Intensity LEDs were comparable [12,13,14] and significantly higher than clinically needed values, since using the former saves chair-side time and reduces chances of moisture contamination [5], the same are the best ones for clinical use.…”