AI Article Synopsis
- Lab-made abutments and zirconia crowns need to be disinfected before use, and this study focused on how different cleaning and aging methods affect the bond strength between materials.
- Cleaning methods like autoclaving improved the bond strength significantly compared to no cleaning and other disinfection methods.
- Over time, while autoclaving provides an initial advantage in bond strength, the difference narrows as the materials age, showing no significant changes with different zirconia types or aging methods.
Article Abstract
Lab-side-fabricated abutments and hybrid zirconia crowns, which are bonded to titanium bases with resin-based composites, require disinfection before insertion. This study investigated the effect of cleaning procedures (ultrasonic, autoclaving) and aging methods (24h, 90d, thermocycling) on the shear bond strength between alumina particle air-abraded titanium and zirconia (3Y-, 4Y- and 5Y-TZP) specimens luted with phosphate monomer containing adhesive systems and resin-based composite. Autoclaving significantly improved SBS (F (27,231) = 17.265, p < .001) compared to no cleaning and three-stage disinfection. No differences were identified with regard to zirconia or aging methods. Bond strength initially benefits from autoclaving but continuously approaches the comparative values over longer periods.
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| http://dx.doi.org/10.11607/ijp.9154 | DOI Listing |
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