Research Information System
JOURNAL OF ADHESION SCIENCE AND TECHNOLOGY, vol.37, no.23, pp.3379-3392, 2023 (SCI-Expanded)
To investigate the effects of preparation order and sandblasting procedures (different particle sizes and sandblasting times) on the wear, surface properties, and shear bond strength of zirconia material. A total of 130 test specimens were fabricated from Katana-Zirconia (n = 10). 70 test samples were sintered. Control, pre-sintered, and sintered groups were formed. The initial weights of the samples were measured. Sandblasting treatments were performed from a distance of 10-mm at 2-bar pressure for 10, 15, and 20-s with 29-mu m and 50-mu m Al2O3. The weight measurement was repeated. Subsequently, pre-sintered groups were sintered. Samples were scanned using a Nanovea-PS50. Ra, Rz, and Sa values were recorded. Then, samples were embedded in acrylic. Composite bars were fabricated using a Teflon mold and bonded to the samples with G-CEM Link-Force. The shear bond strength test was performed. The data were analyzed using the Shapiro-Wilk test and two-way analysis ANOVA (p < 0.05). The highest Ra values were 1.198 +/- 0.105 (Group-6) for PSZ and 0.267 +/- 0.015 (Group-6) for SZ. Sa data demonstrated the highest values of 4.628 +/- 1.541 (Group-6) for PSZ. The highest SBS values were 15.35 +/- 2.75 (Group-4) for PSZ and 12.76 +/- 2.39 (Group-1) for SZ. PSZ showed higher wear amount, Ra, Rz, Sa, and SBS in Groups 4 and 5 (p < 0.05). Pre-sintered and sintered zirconia showed different dependencies on sandblasting parameters regarding weight loss, Ra, Rz, Sa, and SBS. Sandblasting zirconia materials with 50-mu m Al2O3 for 10 or 15-s before sintering may have beneficial effects on surface roughness and SBS.