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| Naji, M. |
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| Motta, Antonella |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Petrov, R. H. | Madrid |
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| Kočí, Jan | Prague |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Ali, M. A. |
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| Rančić, M. |
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| Azevedo, Nuno Monteiro |
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Sulaiman, Ta
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Publications (5/5 displayed)
- 2023Effect of Photo-polymerization Delay on the Bond Strength and Microhardness of Dual-polymerizing Resin Cements
- 2023Wear of Bulk-fill Composite Resins After Thermo-mechanical Loadingcitations
- 2022In Vitro Wear of Glass-Ionomer Containing Restorative Materialscitations
- 2022Wear and Color Stability of Preheated Bulk-fill and Conventional Resin Compositescitations
- 2022Mechanical Properties of Bisacryl-, Composite-, and Ceramic-resin Restorative Materialscitations
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article
In Vitro Wear of Glass-Ionomer Containing Restorative Materials
Abstract
<jats:title>SUMMARY</jats:title><jats:sec><jats:title>Statement of Problem</jats:title><jats:p>Advertisements of glass-ionomer-containing restorative materials recommend suitability as load-bearing permanent or semi-permanent restorations. Historically, unacceptably high wear rates limit clinical indications of glass-ionomer-containing restorations in this regard.</jats:p></jats:sec><jats:sec><jats:title>Objective</jats:title><jats:p>To compare the in vitro wear of contemporary glass-ionomer-containing dental materials commercially advertised for use in permanent dentition as load-bearing restorations in a chewing simulator. Resin composite was tested as a control.</jats:p></jats:sec><jats:sec><jats:title>Methods and Materials</jats:title><jats:p>A resin-modified glass ionomer (Ionolux, VOCO gmbH), a high viscosity glass-ionomer hybrid system (Equia Forte HT with Equia Coat, GC America), and a bioactive ionic resin with reactive glass filler (Activa Bioactive Restorative, Pulpdent) were evaluated. Filtek Supreme Ultra (3M ESPE) is a visible light-activated resin composite that served as a control. Standardized flat disk-shaped specimens (n=12/group) were submitted to 500,000 cycles with continuous thermal cycling against steatite antagonists. Volumetric wear was measured at 1000, 10,000, 200,000, and 500,000 cycles.</jats:p></jats:sec><jats:sec><jats:title>Results</jats:title><jats:p>There was a statistically significant difference in mean volumetric wear for Activa Bioactive Restorative (p=0.0081, 95% CI: 0.3973, 0.4982) and Equia Forte HT (p&lt;0.001, 95% CI: 1.2495, 1.8493), but no statistically significant difference in mean volumetric wear for Ionolux (p=0.6653) compared to control. Activa Bioactive Restorative wore approximately 60% less than, and Equia Forte HT twice more than Filtek Supreme Ultra on average, respectively.</jats:p></jats:sec><jats:sec><jats:title>Conclusions</jats:title><jats:p>Compared to a resin composite, contemporary glass-ionomer-containing restorative materials advertised for use as load-bearing restorations display measurably variable in vitro wear rates.</jats:p></jats:sec>