Effect of Methacryloyloxydecyl Dihydrogen Phosphate-Containing Silane and Adhesive Used Alone or in Combination on the Bond Strength and Chemical Interaction With Zirconia Ceramics Under Thermal Aging
| Autor: | Andres Felipe Millan Cardenas, Alessandro Dourado Loguercio, Mario Felipe Gutiérrez, Pamela Malaquias, Viviane Hass, Jorge Perdigão, Fabiana Suelen Figueredo de Siqueira, Alessandra Reis |
|---|---|
| Rok vydání: | 2019 |
| Předmět: |
Ceramics
Materials science Surface Properties chemistry.chemical_element 02 engineering and technology Dental bonding Methacrylate 03 medical and health sciences chemistry.chemical_compound 0302 clinical medicine Materials Testing Cubic zirconia General Dentistry Zirconium Silanes Bond strength Dental Bonding 030206 dentistry 021001 nanoscience & nanotechnology Silane Resin Cements chemistry Methacrylates Adhesive 0210 nano-technology Shear Strength Nuclear chemistry |
| Zdroj: | Operative dentistry. 45(5) |
| ISSN: | 1559-2863 |
| Popis: | Clinical Relevance Achieving durable bonding to zirconia is fundamental for the application of a methacryloyloxydecyl dihydrogen phosphate (MDP)–containing silane solution or an MDP-containing silane solution associated with an MDP-containing universal adhesive. SUMMARY Objectives: To evaluate the effect of a methacryloyloxydecyl dihydrogen phosphate (MDP)–containing silane coupling agent and universal adhesive, used alone or in combination, on the microshear bond strength (μSBS) to zirconia after 24 hours of water storage (24h) and after 10,000 thermocycles (TC), complemented with chemical analysis of the surface to establish the presence of MDP on the surface of the zirconia after bonding procedures. Methods and Materials: Thirty computer-aided design/computed-aided manufacturing blocks of zirconia were cut into four sections (6×6×6 mm) and sintered. Zirconia sections (n=96) were assigned to 24 groups according to three factors: 1) silane (no silane, Monobond S [MBS], Monobond P [MB+]), 2) adhesive + resin cement (no adhesive + Enforce [ENF], no adhesive + RelyX Ultimate [REX], Prime&Bond Elect + Enforce [PBE/ENF], Scotchbond Universal + RelyX Ultimate [SBU/REX]), and 3) thermocycling (no thermocycling [24h], 10,000 thermocycles [TC]). Upon silane/adhesive application, cylinder-shaped matrices were filled with resin cement and light cured. Specimens were tested in μSBS (1.0 mm/min) after 24h or TC. The μSBS data were analyzed using twoway ANOVA and Tukey’s post hoc test (α=0.05). In addition, micro-Raman spectroscopy was used to analyze the zirconia surface for immediate chemical interaction analysis (n=24). Results: For the 24h condition, PBE/ENF resulted in lower mean μSBS than both groups with silane without PBE (MBS and MB+ groups; p0.05). However, the application of MB+ alone or MB+ associated to SBU resulted in higher mean μSBS (p Conclusions: The results of the current study support the use of an MDP-containing silane solution or an MDP-containing silane solution associated with an MDP-containing universal adhesive for bonding to air-abraded zirconia, as a more stable bonding after thermocycling. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|