Year : 2022

Volume : Volume 13

Issue : Issue 1

Address for correspondence :
Dr. Priya Mariam Thomas
priyamariamthomas2012@gmail.com

Abstract

Background: Sandblasting is often employed as a surface treatment modality to enhance the bond strength of zirconia to veneering ceramic. Aluminum oxide (Al2 O3 ) particles are fired on the zirconia surface to create surface roughness. The objective of the study was to evaluate the effect of varying particle size and pressure settings on the bond strength of zirconia to ceramic. Materials and Methods: The study employed 150 zirconia cuboidal specimens with dimensions 5*5*12 mm in dimensions divided into five groups 30 in each. Group 1: Control group with no surface treatment. Group 2: 50 microns and 3.5 bar pressure. Group 3: Sandblasting 110 microns and 1.5 bar pressure. Group 4: 110 microns and 3.5 bar pressure. Group 5: Sandblasting 50 microns and 1.5 bar pressure. The specimens were then layered with ceramic and subjected to shear bond strength (SBS) analysis. Results: The mean SBS was highest for Group 5 (36.57) and lowest for Group 4 (27.56). Conclusion: Results demonstrated that 50 microns particle size with 1.5 bar pressure had significant improvement in bond strength. The Al2 O3 particle size and pressure also have a significant importance in sandblasting procedures.

Keywords: Sandblasting, Zirconia, Ceramic, Shear bond strength.