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| Naji, M. |
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| Ertürk, Emre |
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| Azevedo, Nuno Monteiro |
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Alrahlah, A.
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Publications (4/4 displayed)
- 2024PEEK and glass fiber post pushout bond strength and vickers hardness of canal disinfected with curcumin photosensitizer activated by microbubble emulsion and sodium-hypochlorite with EDTA.
- 2023The impact of PEEK pretreatment using H2SO4, riboflavin, and aluminum trioxide on the extrusion bond strength to canal dentin luted with Polymethyl methacrylate and resin-based composite cement.citations
- 2014Hygroscopic expansion kinetics of dental resin-compositescitations
- 2014Post-cure depth of cure of bulk fill dental resin-compositescitations
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article
Post-cure depth of cure of bulk fill dental resin-composites
Abstract
Objectives To determine the post-cure depth of cure of bulk fill resin composites through using Vickers hardness profiles (VHN). Methods Five bulk fill composite materials were examined: Tetric EvoCeram® Bulk Fill, X-tra base, Venus® Bulk Fill, Filtek™ Bulk Fill, SonicFill™. Three specimens of each material type were prepared in stainless steel molds which contained a slot of dimensions (15 mm × 4 mm × 2 mm), and a top plate. The molds were irradiated from one end. All specimens were stored at 37 C for 24 h, before measurement. The Vickers hardness was measured as a function of depth of material, at 0.3 mm intervals. Data were analysed by one-way ANOVA using Tukey post hoc tests (α = 0.05). Results The maximum VHN ranged from 37.8 to 77.4, whilst the VHN at 80% of max.VHN ranged from 30.4 to 61.9. The depth corresponding to 80% of max.VHN, ranged from 4.14 to 5.03 mm. One-way ANOVA showed statistically significant differences between materials for all parameters tested. SonicFill exhibited the highest VHN (p <0.001) while Venus Bulk Fill the lowest (p ≤ 0.001). SonicFill and Tetric EvoCeram Bulk Fill had the greatest depth of cure (5.03 and 4.47 mm, respectively) and was significant's different from X-tra base, Venus Bulk Fill and Filtek Bulk Fill (p ≤ 0.016). Linear regression confirmed a positive regression between max.VHN and filler loading (r2 = 0.94). Significance Bulk fill resin composites can be cured to an acceptable post-cure depth, according to the manufacturers' claims. SonicFill and Tetric EvoCeram Bulk Fill had the greatest depth of cure among the composites examined. © 2013 Academy of Dental Materials.