Effect of Additional Polishing Application on the Surface Roughness and Color Change of Composite Resins

Aydın, Numan; Karaoğlanoğlu, Serpil; Oktay, Elif Aybala; Ersöz, Bilge

doi:10.5336/dentalsci.2020-79006

Cited by 6 publications

(6 citation statements)

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“…Materials with smaller particles generally have a high polishability [35]. A number of studies report that materials with only a nanofiller are better polished than hybrid materials [29,34,36,37]. However, this is not confirmed in the present study: it is not evident that the nanoparticle material is characterized by a significantly better smoothness after polishing compared to the microhybrid material, as expected.…”

Section: Discussioncontrasting

confidence: 51%

The Effect of Various Polishing Systems on the Surface Roughness of Two Resin Composites—An In Vitro Study

2022

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The long-term success of a composite restoration largely depends on its smoothness, which can be achieved by the appropriate polishing tools and material selection. The purpose of this study was to evaluate the surface roughness of two composite materials after the application of selected polishing systems. Filtek Ultimate (FU) and Filtek Z250 (FZ) were tested. Forty specimens of each material were prepared. After polymerization under a Mylar strip, the surface roughness of five samples from each group was measured. Subsequently, all specimens were ground by 600 grit sandpaper. The surface roughness of five samples per group was tested again. The samples from each group were randomly assigned to eight subgroups, and polished by Sof-Lex, Sof-Lex Diamond Polishing System, Super Snap, One Gloss, Astrobrush, Stainbuster, Enamel Shiny, and Jiffy Polishing System. The collected data were analyzed using the Shapiro–Wilk and Kruskal–Wallis tests. The lowest Ra coefficient after polishing is found in the Super Snap groups (FU—0.077 μm, FZ—0.085 μm). The lowest Rlr coefficient is measured in the Enamel Shiny group for FU (1.000), and for Sof-Lex, Sof-Lex Diamond Polishing System, and Jiffy Polishing Kit for FZ (1.001), and only slightly higher for Super Snap (FU—1.001, FZ—1.002). The roughest-measured surface is in the One Gloss group for FU (Ra—0.657 µm, Rlr—1.009), and Astrobrush group for FZ (Ra—0.525 μm, Rlr—0.011). Additionally, it was not confirmed that the nanoparticle material (FU) demonstrates better results than the microhybrid one (FZ). Different polishing systems produce varying surface roughness. The most effective polishing system is Super Snap. The structure of composites does not significantly affect their surface roughness after polishing.

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Section: Discussioncontrasting

confidence: 51%

The Effect of Various Polishing Systems on the Surface Roughness of Two Resin Composites—An In Vitro Study

2022

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“…The sample size was determined using G*Power 3.1. Considering the parameters examined in a previous study, a medium effect size, 95% confidence level (1-α), and 80% test power (1- β), 10 samples for each group were deemed sufficient ( 3 ).…”

Section: Methodsmentioning

confidence: 99%

“…In recent years, bulk-fill composite resins have been used in posterior teeth, allowing layering up to 4 or 5 mm thick in one step, accelerating the restoration process ( 2 ). In the restoration of teeth, composite resins with different sized particles created using nanotechnology are now frequently used ( 3 ). Thanks to the improvements made in the structures of composite resins, their clinical life is extended, and the color mismatch between the restored tooth and the material is reduced.…”

Section: Introductionmentioning

confidence: 99%

“…Therefore, ensuring the smoothness of the surface of composite resins is a key factor affecting clinical success ( 1 ). The color change of materials is affected by external factors, the properties of the particles, polishing systems, and composition ( 3 ). The contents of polishing materials include diamond or carbide burs, polishing discs, diamond-embedded rubber spirals, silicon carbide brushes, and polishing pastes.…”

Section: Introductionmentioning

confidence: 99%

“…Therefore, proper finishing and polishing are critical procedures that can increase both the aesthetics and lifespan of restored teeth ( 4 ). Recent studies have shown that resin composites, which are commonly used for tooth restoration exhibit less discoloration after finishing and repolishing ( 3 , 4 ). Studies examining the color stability of the resin materials after repolishing procedures are limited.…”

Section: Introductionmentioning

confidence: 99%

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The effects of different repolishing procedures on the color change of bulk-fill resin composites

Fidan¹

2023

eor

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Purpose: The purpose of the study was to investigate the impact of repolishing procedures on the color change of bulk-fill resin composites after being exposed to coffee. Materials and methods: Four bulk-fill resin composites (Filtek One bulk-fill, Tetric EvoCeram bulk-fill, Admira Fusion x-tra bulk-fill, Grandio SO x-tra bulk-fill) were tested. Sixty samples were prepared with each resin composite and were randomly divided into two groups: first one received the one-step polishing system (Optragloss) and the other group received the two-step polishing system (Nova Twist) (n=30). After being kept in coffee for 12 days, the samples were divided into three subgroups according to repolishing: one-step repolishing group, two-step repolishing group, and non-repolishing group (n=10 for each). Color measurements of the resin composite samples were determined with a spectrophotometer. The difference in color change was calculated using the CIEDE 2000 color formula. The data were analyzed using three-way ANOVA and Tukey test. Results: Among composite materials, Filtek One bulk-fill (1.84 ± 0.98) less color change was observed compared to others (p<0.001). In terms of polishing systems, Optragloss (2.96 ± 1.51) showed significantly greater color change than Nova Twist (2.21 ± 1.07) (p<0.001). The non-repolishing group (3.78 ± 1.25) presented significantly greater color change than the Nova Twist sytem (1.49 ± 0.61) and Optragloss system (2.50 ± 1.01) (p<0.001). Conclusion: The repolishing process reduced discoloration. A two-step repolishing system results in less color change compared to a one-step repolishing application. In polishing systems containing diamond particles, increasing the number of steps can contribute to color stability.

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Does hot coffee or cold coffee cause more discoloration on resin based composite materials?

Ersöz¹,

Oktay²,

Aydın³

et al. 2023

eor

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Purpose: This study aimed to examine the effect of beverages at different temperatures on the coloring of composites. Materials and methods: A total of 48 cylindrical samples, 24 of which were prepared from 2 composite materials (G'aenial; Estelite Σ Quick), were included in the study. The sample dimensions were standardized at 2 x 10 mm2. After the polishing, the initial color measurements were performed using a spectrophotometer. The samples were divided into 3 subgroups as distilled water, hot coffee (60 °C) and cold coffee (0 °C) (n=8). During the 7th and 30th days, the samples were immersed in the solutions for 15 min every day. Color measurements were repeated on the 7th and 30th days. Data were analyzed using a two-way analysis of variance, followed by the Tukey post-hoc test (p<0.05). Results: The highest color change was detected on the 7th and 30th days in the G-aenial anterior microhybrid composite immersed in hot coffee (p<0.001). The application of hot and cold coffee applications did not make a statistically significant difference in the coloration of the Estelite Σ Quick composite samples at the end of the 7th (p=0.346) and 30th (p=910) days. Conclusion: Hot drinks had a more coloring effect on restorations. This coloration was quite evident in the microhybrid composite.

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Effect of Additional Polishing Application on the Surface Roughness and Color Change of Composite Resins

Cited by 6 publications

References 0 publications

The Effect of Various Polishing Systems on the Surface Roughness of Two Resin Composites—An In Vitro Study

The Effect of Various Polishing Systems on the Surface Roughness of Two Resin Composites—An In Vitro Study

The effects of different repolishing procedures on the color change of bulk-fill resin composites

Does hot coffee or cold coffee cause more discoloration on resin based composite materials?

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