聚醚醚酮与聚甲基丙烯酸甲酯丙烯酸酯义齿聚合物的键合行为

IF 2.5 3区医学 Q2 DENTISTRY, ORAL SURGERY & MEDICINE

Journal of Adhesive Dentistry Pub Date : 2021-04-07 DOI:10.3290/j.jad.b1079579

Felicitas Mayinger, Maximilian Fiebig, Malgorzata Roos, Marlis Eichberger, Nina Lümkemann, Bogna Stawarczyk

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引用次数: 2

摘要

目的:研究预处理和调理对聚醚醚酮(PEEK)与冷固化聚甲基丙烯酸甲酯(PMMA)之间剪切结合强度(SBS)、表面自由能(SFE)和表面粗糙度(SR)的影响。材料和方法:PEEK衬底(Dentokeep PEEK Disc, nt-trading)用不同晶粒尺寸的Al2O3颗粒在不同压力下(1)0.2 MPa - 50µm Al2O3;2) 0.4 MPa - 50µm Al2O3;3) 0.2 MPa - 110µm Al2O3;4) 0.4 MPa - 110µm Al2O3;5)无空气磨损(n = 172/组)。采用SFE和SR (n = 10/组)和扫描电镜(n = 2/组)对其表面性质进行定量分析。底物用a) visio_处理。链接(VL， Bredent);b) Scotchbond Universal (SU, 3M Oral Care);c)黏结液(BF, sch tz Dental);或d)无条件(WC;n = 40/亚群)并与聚合物结合(Futura Jet, sch tz Dental)。测定1万次热循环前后的SBS和断裂类型(n = 20/亚组)。计算单因素方差分析、Kruskal-Wallis检验、Mann-Whitney u检验、Kaplan-Meier生存估计和威布尔分布(p < 0.05)。采用Ciba-Geigy表和卡方检验分析骨折类型分布。结果:粒径和压力的增加导致SBS、威布尔特征强度和威布尔模量相似或增加(p < 0.001 ~ 0.046)。对照组(无空气磨损)效果最低，0.4 MPa ~ 110µm Al2O3预处理效果最高(p < 0.001)。与其他条件反射组相比，VL高(p < 0.001 ~ 0.03)， SU和WC低(p < 0.001 ~ 0.006)。虽然不影响SFE，但颗粒大小和压力的增加导致SR的增加(p < 0.001)。结论:0.4 MPa - 110µm Al2O3预处理可提高PEEK与PMMA的结合性能。VL等胶粘剂的应用可以进一步增强SBS。

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Bonding Behavior Between Polyetheretherketone and Polymethylmethacrylate Acrylic Denture Polymer.

Purpose: To investigate the impact of pretreatment and conditioning on shear bond strength (SBS), surface free energy (SFE) and surface roughness (SR) between polyetheretherketone (PEEK) and cold-cured polymethylmethacrylate (PMMA).

Materials and methods: PEEK substrates (Dentokeep PEEK Disc, nt-trading) were air abraded with Al2O3 particles of different grain sizes applied with varying pressure at 1) 0.2 MPa - 50 µm Al2O3; 2) 0.4 MPa - 50 µm Al2O3; 3) 0.2 MPa - 110 µm Al2O3; 4) 0.4 MPa - 110 µm Al2O3; or 5) without air abrasion (n = 172/group). Surface properties were quantified using SFE and SR (n = 10/group), and scanning electron microscope imaging (n = 2/group). Substrates were conditioned with a) Visio.link (VL, Bredent); b) Scotchbond Universal (SU, 3M Oral Care); c) Bonding Fluid (BF, Schütz Dental); or d) without conditioning (WC; n = 40/subgroup) and bonded to the polymer (Futura Jet, Schütz Dental). SBS and fracture types were determined before and after 10,000 thermal cycles (n = 20/subgroup). Univariate ANOVA, Kruskal-Wallis test, Mann-Whitney U-test, Kaplan-Meier survival estimates, and Weibull distribution were computed (p < 0.05). Ciba-Geigy tables and the chi-squared test were used to analyze fracture type distributions.

Results: An increase in particle size and pressure resulted in similar or increased SBS, Weibull characteristic strength, and Weibull moduli (p < 0.001 - 0.046). The lowest results were observed for the control group (without air abrasion), while pretreatment with 0.4 MPa - 110 µm Al2O3 presented the highest values (p < 0.001). In comparison with the other conditioning procedures, VL showed high (p < 0.001 - 0.03), and SU and WC low SBS (p < 0.001 - 0.006). Although it did not influence SFE, an increase in particle size and pressure led to an increased SR (p < 0.001).

Conclusion: Pretreatment with 0.4 MPa - 110 µm Al2O3 can be recommended to increase bonding properties between PEEK and PMMA. Application of adhesives such as VL can enhance SBS further.

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来源期刊

Journal of Adhesive Dentistry 医学-牙科与口腔外科

CiteScore

5.20

自引率

6.10%

发文量

审稿时长

6-12 weeks

期刊介绍： New materials and applications for adhesion are profoundly changing the way dentistry is delivered. Bonding techniques, which have long been restricted to the tooth hard tissues, enamel, and dentin, have obvious applications in operative and preventive dentistry, as well as in esthetic and pediatric dentistry, prosthodontics, and orthodontics. The current development of adhesive techniques for soft tissues and slow-releasing agents will expand applications to include periodontics and oral surgery. Scientifically sound, peer-reviewed articles explore the latest innovations in these emerging fields.