Associate Professor, Department of Prosthodontics, Faculty of Dentistry, Pamukkale University, Pamukkale/Denizli, Turkey.
University of Zurich, Division of Dental Biomaterials, Center for Dental Medicine, Clinic for Reconstructive Dentistry, Zurich, Switzerland.
Eur J Prosthodont Restor Dent. 2024 May 31;32(2):219-226. doi: 10.1922/EJPRD_2610Sahin08.
This study aims to investigate the effect of different particle sizes and pressures on the shear bond strength (SBS) and the roughness (Ra) of polyetheretherketone.
A total of 117 polyetheretherketone specimens were fabricated and divided into a control (CN: no air-particle abrasion) and eight pre-treatment groups (air-abraded with 50- or 110-μm Al2O3 particles at 1(A), 1.5(B), 2(C), and 2.5(D) bar). The adhesive, Visio.link was used. Thermal aging was performed. Surface properties, SBS and failure mode were assessed. Data was analyzed by linear regression, Pearson correlation and Dunnett's T3 test for pairwise comparisons (p⟨0.05).
The highest and lowest Ra were found in the 110D and CN groups respectively, and the highest SBS results were obtained from the 50B group. Pressure and particle size showed significant difference on the investigated properties (p⟨0.001). Only adhesive failure was observed in the CN, and resin cohesive failure was observed in addition to adhesive failure in the overall study groups.
The air-borne particle abrasion procedures and the adhesive material combination are critical to the strength of the polyetheretherketone bond. The combination of visio.link with the pre-treatment option of 50-μm Al₂O₃ particles applied at 1.5-bar pressure delivered the most favorable results.
本研究旨在探讨不同粒径和压力对聚醚醚酮剪切结合强度（SBS）和粗糙度（Ra）的影响。
共制作了 117 个聚醚醚酮样本，分为对照组（CN：无空气颗粒喷砂）和 8 个预处理组（用 50-或 110-μm Al2O3 颗粒在 1(A)、1.5(B)、2(C)和 2.5(D)巴下进行空气喷砂）。使用 Visio.link 胶粘剂。进行热老化。评估表面特性、SBS 和失效模式。通过线性回归、Pearson 相关和 Dunnett 的 T3 检验进行两两比较（p⟨0.05）。
Ra 值最高和最低的分别在 110D 和 CN 组，SBS 值最高的是 50B 组。压力和粒径对所研究的性能有显著差异（p⟨0.001）。仅在 CN 组观察到胶黏剂失效，而在整个研究组中除了胶黏剂失效外，还观察到树脂内聚失效。
空气颗粒喷砂程序和胶粘剂材料组合对聚醚醚酮结合强度至关重要。Visio.link 与 50-μm Al₂O₃ 颗粒在 1.5 巴压力下的预处理选项结合使用，效果最佳。
