The effects of airborne abrasion on micro-shear bond strength of resin cements on zirconia

Main Article Content

Thool Pechinthorn
Suppason Thitthaweerat
Pisol Senawongse

Abstract

Objective: To evaluate the effect of various air abrasion treatments on micro-shear bond strength (μSBS) of
zirconia bonded with different self-adhesive resin cements.
Methods: Fully-sintered Y-TZP block specimens (IPS e.max® ZirCAD, Ivoclar Vivadent) were prepared to 5 types
of surface treatments: no treatment [CON], air abrasion with different particle sizes and pressures: 50 μm & 1
bar [50.1], 50 μm & 3 bar [50.3], 110 μm & 1 bar [110.1], and 110 μm & 3 bar [110.3]. Then, the specimens
were divided into two subgroups for further cementation with self-adhesive resin cements (Rely X Unicem Aplicap,
3M ESPE and Panavia SA, Kuraray). These cements were placed into tygon tubes over the zirconia specimens.
After water storage at 37°C for 24 hours, micro-shear bond strength (μSBS) was measured. Failure mode was
observed under SEM. Statistical analysis was performed by ANOVA and Tukey’s test (α = 0.05).
Results: The air abrasion treatment with various particle sizes and pressures affected μSBS (p<0.05). The higher
pressure and larger particle size improved zirconia bond strength. Panavia SA performed superiorly in μSBS
than Rely X Unicem (p<0.05).
Conclusions: The air abrasion with larger particle size (110 μm) & higher air pressure (3 bar) in combination with
MDP-containing resin cement (Panavia SA) could create the optimal adhesion to zirconia.

Article Details

How to Cite
1.
Pechinthorn T, Thitthaweerat S, Senawongse P. The effects of airborne abrasion on micro-shear bond strength of resin cements on zirconia. M Dent J [Internet]. 2020 Oct. 21 [cited 2024 May 2];37(2):183-92. Available from: https://he02.tci-thaijo.org/index.php/mdentjournal/article/view/246840
Section
Original articles

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