Assessment of the Binding Force of Different Peek Binding Agents
Abstract:
Objective: The purpose of the study was to compare the bonding strength of three bonding agents on polyetheretherketone (PEEK) surfaces against lithium disilicate (LS2).
Material and methods: 40 PEEK specimens (Techno Med Mineral, Zirkonzahn) and 40 LS2 specimens (IPS e.max Press MT, Ivoclar Vivadent) with a rectangular active area of a 9 mm x 8 mm were used. They were treated by sandblasting with Al2O3, 110 µm, 3 bars, and divided into 4 groups (i) control group with no treatment or subsequently combined with the following conditioning agents: (ii) Zirkonzahn Composite Bonding Liquid for Tecno Med Mineral (Zirkonzahn), (iii) Visio. link (Bredent), (iv) Monobond Plus (Ivoclar Vivadent). All specimens were cemented with Panavia V5, and the two surfaces GFR-PEEK and LS2 were stored in bidi stilled water at 37ºC for 24 hours. Pressure tensile bond strength tests (TBS) were performed. Statistical analysis was performed with a 1-factor ANOVA test and Bonferroni post hoc analysis.
Results: The use of Zirkonzahn and Visio link bonding agents resulted in significantly higher TBS than all other methods. Between Zirkonzahn and Visio. link, there was no statistically significant difference.
Conclusion: The use of bonding agents containing methyl methacrylate (MMA), pen- taerythritol triacrylate (PETIA) and dimethacrylates, offers the best adhesive performance for PEEK.
