Sağlık Akademisi Kastamonu
Yazarlar: Meral BAĞKUR, Matlab NADIROV, Cihan AKÇABOY
Konular:Diş Hekimliği
DOI:10.25279/sak.630863
Anahtar Kelimeler:Polyetheretherketone,Sandblasting,Shear bond strength
Özet: Background: The aim of this study is to evaluate the effect of sandblasting on the shear bond strength between polyetheretherketone material, which is recommended to be used as framework material, and resin cement. Materials and Methods: For this study, 24 polyetheretherketone specimens of 10x8x2 mm dimensions were prepared by cutting from pre-pressed blocks on a 5-axis milling device. Specimens were embedded into autopolymerized acrylic resin. After the surfaces of the specimens were smoothened with silicon carbide papers, they were randomly divided into 3 experimental groups (n = 8). Group 1 was sandblasted with 50 µm aluminum oxide particles; Group 2 was sandblasted with 110 µm aluminum oxide particles, and in group 3, which was the control group, no surface treatment was applied. Then, each specimen was cleaned with ultrasonic cleaner with distilled water for 1 minute. An adhesive was used for surface conditioning to all specimens and resin cement was applied to the surface of polyetheretherketone specimens using 3 mm diameter cylindrical molds. For the obtained specimens, force was applied in the universal test device until the failure observed with a speed of 1mm / min occurred. The resulting fracture value was recorded in Newtons and the bond strength values were calculated. The data were evaluated by using One Way Variance Analysis. The differences between the groups were determined by the Tukey test. The results were considered significant for α≤0.05. Results: There was a statistically significant difference between the surface treatments applied (p <0.05). While the lowest bond strength values were observed in the control group, there was no statistically significant difference between the sandblasting groups (p> 0.05). Conclusion: While cementing polyetheretherketone crowns, sandblasting is offered before adhesive application. According to this study, the particle size is not important for the shear bond strength between the resin cement and polyetheretherketone.