Microtensile Bond Strength of CAD/CAM Resin Blocks to Dual-Cure Adhesive Cement: The Effect of Different Sandblasting Procedures
Tarih
2019Yazar
Kara, Dilan
Tuncer, Safa
BAYDEMİR, CANAN
TEKÇE, NESLİHAN
Demirci, Mustafa
Üst veri
Tüm öğe kaydını gösterÖzet
Purpose To investigate the effect of sandblasting powder particles on microtensile bond strength (mu TBS) of dual-cure adhesive cement to CAD/CAM blocks. Materials and Methods CAD/CAM blocks (Cerasmart, VITA, and LAVA) were cut in slabs and divided into groups: group 1, no sandblasting; group 2, sandblasted with 27-mu m Al2O3; group 3, sandblasted with 30-mu m CoJet; group 4, sandblasted with 50-mu m Al2O3. After sandblasting, all specimens were silanized and luted using dual-cure adhesive cement (G-CEM LinkForce). After 24 hours, bonded specimens were cut into 1 +/- 0.2 mm(2) sticks, and mu TBS values were obtained (N = 30). Additionally, 132 CAD/CAM block sections were prepared for surface roughness testing and scanning electron microscopy (SEM) evaluations. Results were analyzed using Kruskal-Wallis One-way ANOVA and Dunn's Post Hoc Test (p 0.05). For LAVA, mu TBS values of specimens that were sandblasted with 50-mu m Al2O3 powder were significantly higher than 30-mu m-SiO2 and 27-mu m Al2O3 (p < 0.05). Conclusions The sand particles investigated (27-mu m Al2O3, 30-mu m SiO2, or 50-mu m Al2O3) did not significantly affect mu TBS results of CAD/CAM blocks for Cerasmart and VITA, although the results changed significantly for LAVA. The ideal bond protocol for CAD/CAM blocks is specific to the material used.
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