Chaijareenont Pisaisit, Prakhamsai Sasiprapha, Silthampitag Patcharawan, Takahashi Hidekazu, Arksornnukit Mansuang
Department of Prosthodontics, Faculty of Dentistry, Chiang Mai University.
Center of Excellence for Dental Implantology, Faculty of Dentistry, Chiang Mai University.
Dent Mater J. 2018 Jun 8;37(3):385-392. doi: 10.4012/dmj.2017-141. Epub 2018 Jan 26.
This study evaluated the effects of surface pretreatment with different concentrations of sulfuric acid etching on surface properties and bonding between Polyetheretherketone (PEEK) and a resin composite. Six groups of surface pretreatment (no pretreatment, etched with 70, 80, 85, 90, and 98% sulfuric acid for 60 s) were treated on PEEK. Surface roughness, scanning electron microscopy (SEM) and atomic force microscopy (AFM) analyses were examined. Shear bond strength (SBS) and cross-sectional observations of the interfaces were performed. One-way ANOVA analysis revealed differences in surface roughness and SBS between groups. The 90 and 98% sulfuric acid etching significantly achieved the highest SBS (p<0.05). SEM and AFM demonstrated etched surfaces with wide and deep pores. The 90 and 98% sulfuric acid etching were suggested to be the optimal concentration to improve adhesion between PEEK and the resin composite.
本研究评估了不同浓度硫酸蚀刻表面预处理对聚醚醚酮（PEEK）表面性能以及PEEK与树脂复合材料之间粘结的影响。对PEEK进行了六组表面预处理（不预处理、分别用70%、80%、85%、90%和98%的硫酸蚀刻60秒）。检测了表面粗糙度、扫描电子显微镜（SEM）和原子力显微镜（AFM）分析结果。进行了剪切粘结强度（SBS）测试以及界面的横截面观察。单因素方差分析显示各组之间表面粗糙度和SBS存在差异。90%和98%的硫酸蚀刻显著获得了最高的SBS（p<0.05）。SEM和AFM显示蚀刻后的表面有宽而深的孔隙。90%和98%的硫酸蚀刻被认为是提高PEEK与树脂复合材料之间附着力的最佳浓度。
