Color stability of microfilled, microhybrid and nanocomposite resins—An in vitro study

Nasim, Iffat; Neelakantan, Prasanna; Sujeer, R.; Subbarao, Chandana

doi:10.1016/j.jdent.2010.05.020

Cited by 311 publications

(328 citation statements)

References 22 publications

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“…3,23,24 The results of the present study demonstrated this staining potential, as in other studies. 1,2,3,4,18,24,27,28 Extrinsic discoloration can be removed by daily brushing, a good finishing/polishing technique, and bleaching agents. Some discoloration is easier to remove than others.…”

Section: Discussionmentioning

confidence: 99%

“…Some discoloration is easier to remove than others. 2,3,18,20,28 Although extrinsic factors cause the most discoloration, intrinsic factors involved in the staining process must be considered because they are irreversible and cannot be removed nor bleached, although teeth can be successfully bleached.…”

Section: Discussionmentioning

confidence: 99%

“…The superior color matching of VF (48 vol%), SF (66.8 vol%), PF (70 vol%) and FSXT (46 vol%) may be related to their filler content. These composites contain ≥ 70% wt filler; some studies 2,22 have shown that composites with a high filler content exhibit superior color matching. Ytterbium trifluoride, particles that contribute to fluoride release, is a water-soluble component that leaches from composites after immersion in a solution.…”

Section: Discussionmentioning

confidence: 99%

“…The staining was considered clinically unacceptable when ∆E values were ≥ 3.3. 2,24 Water sorption/solubility…”

Section: Assessment Of Color Changementioning

confidence: 99%

“…25 These leached products alter the microstructure of the matrix, creating voids and microcrack formations 10 that allow stain penetration and discoloration. 2,4 In response to the lack of research on the color instability of conventional flowable composites 14,15 and the apparent absence of literature on new flowable composites, this study aimed to evaluate the effects of immersion in a range of beverages on the color change and water sorption of nine flowable composites at multiple time points over 6 months. The first null hypothesis was that increased color change is not related to water sorption in composites maintained at 37°C for 6 months.…”

Section: Introductionmentioning

confidence: 99%

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Six-month color change and water sorption of 9 new-generation flowable composites in 6 staining solutions

et al. 2016

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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 Change group was divided into six subgroups, which were immersed in distilled water (DW), coffee (CF), Coca-Cola (CC), red wine (RW), tea (TE) and orange juice (OJ). The color was measured at the baseline, 1, 2, 3 and 4 weeks, and 3 and 6 months and color change values ( . Vertise Flow showed the highest water sorption (W S = 69.10 ± 7.19). The Pearson test showed statistically significant positive correlations between water sorption and solubility and between water sorption and ∆E; the positive solubility-∆E correlation was not statistically significant. The findings suggest that water sorption is one factor associated with the ability of composites to discolor; however, discoloration is a multifactorial problem.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

“…The staining was considered clinically unacceptable when ∆E values were ≥ 3.3. 2,24 Water sorption/solubility…”

Section: Assessment Of Color Changementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Six-month color change and water sorption of 9 new-generation flowable composites in 6 staining solutions

et al. 2016

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Can we restore the colour of long‐term discoloured resin composites by noninvasive methods?

Ozkaya

Yaşa

Demirhan

et al. 2020

Color Research & Application

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The aim of this study is to investigate the effect of toothbrushing and paste repolishing on the colour restitution of long‐term coffee discoloured prefabricated and direct resin composites. One prefabricated (Componeer‐Coltène) and three direct resin composites (Brilliant Ever Glow‐Coltène, Essentia‐GC, Harmonize‐Kerr) were tested. Componeer samples were prepared with and without polishing while the other groups were all polished. After baseline colour‐measurement, the specimens were immersed in coffee for 3‐month and colour‐measurement was repeated, then a simulation of 1‐year of toothbrushing (Toothbrush Simulation ZM‐3.4‐SD Mechatronics) with Pro‐Expert Professional Protection‐Ipana, 3D White Luxe Perfection‐Ipana, and White Ruscello‐GC toothpaste was performed. Colour‐changes (ΔE) after toothbrushing and repolishing with polishing paste (Enamelize, Cosmodent) were calculated. The discolouration occurred after prolonged exposure to a coffee solution was above the clinically acceptable level of ΔE = 2 in all groups, except Componeer polished group. The lowest discoloured group was Componeer polished (ΔE = 1.66 ± 0.32) while the highest was Essentia group (ΔE = 4.30 ± 0.48). The samples toothbrushed with White Ruscello exhibited the greatest colour restitution (ΔE = 2.06 ± 0.75) (P < .05). After paste repolishing, slight colour restitution was observed among all the groups, but the differences between them remained the same as after the toothbrushing procedure. Prolonged exposure to coffee solution affects the colour of the resin composites and noninvasive methods can provide colour restitution below the critical value for visual perception (ΔE = 3.3). Noninvasive procedures such as toothbrushing with a whitening toothpaste or repolishing with a polishing paste may ensure the colour restitution of direct resin composite restorations until a clinically acceptable level.

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Influence of light curing units and fluoride mouthrinse on morphological surface and color stability of a nanofilled composite resin

Oliveira

Botta

Campos

et al. 2014

Microsc. Res. Tech.

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Composite resin is a dental material susceptible to color change over time which limits the longevity of restorations made with this material. The influence of light curing units and different fluoride mouthrinses on superficial morphology and color stability of a nanofilled composite resin was evaluated. Specimens (N = 150) were prepared and polished. The experimental groups were divided according to the type of light source (halogen and LED) and immersion media (artificial saliva, 0.05% sodium fluoride solution-manipulated, Fluordent Reach, Oral B, Fluorgard). Specimens remained in artificial saliva for 24-h baseline. For 60 days, they were immersed in solutions for 1 min. Color readout was taken at baseline and after 60 days of immersion. Surface morphology was analyzed by Scanning Electron Microscopy (SEM) after 60 days of immersion. Color change data were submitted to two-way Analysis of Variance and Tukey tests (α = 0.05). Surface morphology was qualitatively analyzed. The factor light source presented no significant variability (P = 0.281), the immersion media, significant variability (P < 0.001) and interaction between factors, no significant variability (P = 0.050). According to SEM observations, no difference was noted in the surface of the specimens polymerized by different light sources, irrespective of the immersion medium. It was concluded that the light source did not influence the color stability of composite, irrespective of the immersion media, and among the fluoride solutions analyzed, Fluorgard was the one that promoted the greatest color change, however, this was not clinically perceptible. The immersion media did not influence the morphology of the studied resin.

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Color stability of microfilled, microhybrid and nanocomposite resins—An in vitro study

Cited by 311 publications

References 22 publications

Six-month color change and water sorption of 9 new-generation flowable composites in 6 staining solutions

Six-month color change and water sorption of 9 new-generation flowable composites in 6 staining solutions

Can we restore the colour of long‐term discoloured resin composites by noninvasive methods?

Influence of light curing units and fluoride mouthrinse on morphological surface and color stability of a nanofilled composite resin

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