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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
Wear of Bulk-fill Composite Resins After Thermo-mechanical Loading
Abstract
<jats:title>SUMMARY</jats:title><jats:sec><jats:title>Statement of Problem:</jats:title><jats:p>Wear of conventional composite resin presented many challenges when restoring posterior teeth and resulted in clinical complications. Bulk-fill composite resins have been proposed as a more suitable and wear-resistant alternative.</jats:p></jats:sec><jats:sec><jats:title>Objective:</jats:title><jats:p>To evaluate and compare the volumetric wear (mm3) of bulk-fill composite resins to a conventional composite resin and enamel after thermo-mechanical loading.</jats:p></jats:sec><jats:sec><jats:title>Methods and Materials:</jats:title><jats:p>Five composite resins (n=10) were evaluated: four bulk-fill composite resins (Filtek One Bulk Fill [3M Oral Care], Tetric EvoCeram Bulk Fill [Ivoclar Vivadent], Tetric PowerFill [Ivoclar Vivadent], SonicFill 3 [Kerr Corp]); and one conventional composite resin (Filtek Supreme Ultra [3M Oral Care]). Enamel from recently extracted human teeth was used as a control. Specimens were subjected to a 2-body volumetric wear evaluation using a chewing simulator (CS-4.8, Mechatronik). Disc-shaped specimens (10 mm in diameter × 3 mm in thickness) received 500,000 load cycles against steatite antagonists while simultaneously thermocycled (5000 cycles, 5-55°C). Volumetric wear (mm3) was measured using the Geomagic Control X software (3D Systems) based on digital scans of the specimens obtained before and after thermo-mechanical loading, with a Trios 3 (3Shape) digital scanner. Scanning electron microscopy analysis of wear facets and composite resin filler shape and size was performed. Volumetric wear was statistically analyzed using the one-way ANOVA and Tukey’s post-hoc test (α=0.05).</jats:p></jats:sec><jats:sec><jats:title>Results:</jats:title><jats:p>All tested composite resins wore at rates significantly higher than enamel (p&lt;0.05). The mean volumetric wear of the composite resins ranged from 1.01 mm3 to 1.48 mm3, while enamel had a mean volumetric wear of 0.25 mm3. Bulk-fill composite resins showed higher wear resistance than the conventional composite resin (p&lt;0.05).</jats:p></jats:sec><jats:sec><jats:title>Conclusions:</jats:title><jats:p>Bulk-fill composite resins showed higher wear resistance than the conventional composite resin, and both types of composite resin were not as wear-resistant as enamel.</jats:p></jats:sec>