2016
DOI: 10.1590/1807-3107bor-2016.vol30.0123
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Six-month color change and water sorption of 9 new-generation flowable composites in 6 staining solutions

Abstract: Six-month color change and water sorption of 9 new-generation flowable composites in 6 staining solutions Abstract: Color match and water sorption are two factors that affect restorative materials. Discoloration is essential in the lifespan of restorations. The aim of this study was to evaluate color change and water sorption of nine flowable composites at multiple time points over 6 months. 60 samples of each composite were divided into two groups (Color Change and Water Sorption/Solubility). Each Color Chang… Show more

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Cited by 45 publications
(87 citation statements)
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“…Polishing was shown to partially reduce discoloration, hence suggesting two mechanisms of extrinsic discoloration, pigment absorption within the polymer matrix and pigment adsorption on material surface . Intrinsic discoloration due to hydrolytic changes in the polymer network seem to have a lesser effect on the overall discoloration as color differences after water storage were reported to be smaller compared to colored storage media . Changes in a * and b * showed less consistency in the tested cohort of composites, without a clear shift toward a specific color on the red‐green or blue‐yellow coordinates.…”
Section: Discussionmentioning
confidence: 96%
See 1 more Smart Citation
“…Polishing was shown to partially reduce discoloration, hence suggesting two mechanisms of extrinsic discoloration, pigment absorption within the polymer matrix and pigment adsorption on material surface . Intrinsic discoloration due to hydrolytic changes in the polymer network seem to have a lesser effect on the overall discoloration as color differences after water storage were reported to be smaller compared to colored storage media . Changes in a * and b * showed less consistency in the tested cohort of composites, without a clear shift toward a specific color on the red‐green or blue‐yellow coordinates.…”
Section: Discussionmentioning
confidence: 96%
“…An exception is a fiber‐reinforced bulk‐fill composite everX Posterior (GC) requiring a final layer of another composite due to its long glass fibers. Differences in color stability between bulk‐fill and universal composites were found in staining media, albeit with inconclusive data, depending on composite brands, layer thickness, polishing procedures, and staining media …”
Section: Introductionmentioning
confidence: 99%
“…Composite specimens were individually immersed in vials containing 2 ml of red wine and kept at 37°C. The storage solution was renewed weekly for 180 d .…”
Section: Methodsmentioning
confidence: 99%
“…These habits include the consumption of some beverages that have low pH, such as isotonic drinks, coffee, and wines, as well as drinks with high temperature that might affect the composite polymer matrix behavior 4,5 . Smoking also subjects the dental restorations to harmful substances [6][7][8] .…”
Section: Introductionmentioning
confidence: 99%
“…Drinks commonly present in an adult's diet, such as coffee and red wine, have shown some deleterious effects on the composite resin materials. The pigments present in these solutions could compromise the color stability of the composite materials [4][5][6][7] . In addition, the beverage's composition, alcohol content, pH values, and the temperature at which the drink solution reaches the resin material could damage the material's surface area in terms of surface roughness, polymer matrix degradation, and mass changes (water sorption and solubility) 4,15 .…”
Section: Introductionmentioning
confidence: 99%