Influence of different surface treatments on the shear strength between acrylic resin and two materials: Polyether Ether Ketone (PEEK) / ZANTEXR

The present study assesses the shear strength of Polyether Ether Ketone (PEEK) and Zantex to thermopolymerizable acrylic resin (TAR) with different surface treatments. To this end, 100 test specimens were produced divided into two groups: G1(PEEK + TAR) G2 (Zantex TAR). Each group was subdivided subgroups A, B, C, D E (n=10) according pre-treatment: A: TAR PEEK/Zantex without treatment (control); B: treated Palabond; C: blasted aluminum oxide (Al2O3) 125 µm; D: PEEK /Zantex Al2O3 µm E: prepared groove-shaped retentions. structures tested in a Universal testing machine EMIC DL2000. Two-way variance analysis showed significant difference between materials treatments (p < 0.001). Multiple comparisons done Tukey’s failure modes analyzed G test. Statistical that outperformed for most similar performance Al2O3. Within group, use grooves Palabond combined blasting best results; results obtained blasting. Regarding modes, only adhesive failures Zantex’s dependent on treatment. Therefore, method applied polymers studied here contribute material’s adhesion resin.