OBJECTIVE: The study aimed to investigate the effects of different kinds of surface roughening treatment on PEEK and acrylic resin bonding.
METHODS: Eighty PEEK specimens (N = 80) were randomly divided into 5 groups (n = 16 per group) and subjected to various surface roughening treatment (control, grinding, sandblasting, tribochemical silica coating (CoJet), and sulfuric acid etching). Heat-polymerized acrylic resin was applied to the treated surfaces of the PEEK specimens. The shear bond strength (SBS) test, environmental scanning electron microscopy (ESEM) analysis and three-dimensional (3D) surface topography analysis were performed. The statistical analysis of the data was conducted using the analysis of variance (ANOVA) and Tukey\'s multiple comparison test.
RESULTS: The one-way ANOVA showed significant differences in the SBS values between the groups (p = 0.001). Sandblasting, tribochemical silica coating and sulfuric acid etching resulted in high SBS values (p = 0.001). The highest SBS values were observed in the sulfuric acid etching group (8.83 ±3.63 MPa), while the lowest SBS values were observed in the control group (3.33 ±2.50 MPa).
CONCLUSIONS: The additional roughening treatment applied to the PEEK surface increases the bond strength with heat-polymerized acrylic resin.
目的:本研究旨在研究不同表面粗糙化处理对PEEK与丙烯酸树脂粘结的影响。
方法:将80个PEEK标本(N=80)随机分为5组(每组n=16),并进行各种表面粗糙化处理(对照,研磨,喷砂,摩擦化学二氧化硅涂层(CoJet),和硫酸蚀刻)。将热聚合的丙烯酸树脂施加到PEEK样品的处理表面上。剪切粘结强度(SBS)试验,进行了环境扫描电子显微镜(ESEM)分析和三维(3D)表面形貌分析。使用方差分析(ANOVA)和Tukey多重比较检验对数据进行统计学分析。
结果:单向ANOVA显示各组之间SBS值的显着差异(p=0.001)。喷砂,摩擦化学二氧化硅涂层和硫酸蚀刻导致高SBS值(p=0.001)。硫酸刻蚀组SBS值最高(8.83±3.63MPa),对照组SBS值最低(3.33±2.50MPa)。
结论:对PEEK表面施加的附加粗糙化处理增加了与热聚合丙烯酸树脂的粘结强度。