Color stability of a nanofill composite: effect of different immersion media

Fontes, Sílvia Terra; Fernandez, Matheus dos Santos; Moura, Claudia Modena de; Meireles, Sônia Saeger

doi:10.1590/s1678-77572009000500007

Cited by 191 publications

(212 citation statements)

References 17 publications

(36 reference statements)

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“…Here, we used the CIE L * a * b * system to evaluate ΔE * . Although some recent studies have demonstrated that another measurement system, i.e., CIEDE2000, may provide a better fit than the former in the evaluation of color difference thresholds, 10,18,19,20 many other studies use the CIE L*a*b* color system to analyze color outcomes in dentistry 3,5,21,22,23 because this system features predictability and clinical importance. ΔE * did not increase after 12 months of storage in specimens prepared with the modeling liquids.…”

Section: Discussionmentioning

confidence: 99%

Translucency and color stability of resin composite and dental adhesives as modeling liquids – A one-year evaluation

et al. 2017

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The aim of this study is to evaluate the influence of modeling liquids on the translucency and color shade of resin composites (RCs) after one year of storage. RC specimens were prepared using either a conventional insertion technique (control; without modeling liquid) or a restorative dental modeling insertion technique (RDMIT) with dental adhesives as modeling liquids (Scotchbond ™ Multi-Purpose [SBMP; 3M ESPE] or Adper™ Single Bond 2 [SB; 3M ESPE]). The initial colors of the specimens were obtained with a digital spectrophotometer and the CIEL * a * b * color system, after which specimens were stored (37°C) in distilled water or red wine for 12 months. Color measurements were reassessed after 6 and 12 months of storage, and scanning electron microscopy was performed after 12 months. Translucency and color change (ΔE * ) were calculated and analyzed using ANOVA and Tukey's test (α = 5%). RC samples prepared via RDMIT showed a translucency similar to that of control samples. ΔE * was also less intense for RCs containing SBMP than for RCs containing SB. Specimens stored in wine showed a clear pattern of degradation, especially in the control group, and surface degradation seemed to be less intense for specimens prepared with SBMP and SB than for specimens without. Specimens stored in water did not show clear evidence of surface degradation. RDMIT appears to be an interesting approach to reduce ΔE * in RCs over time without negative effects on the translucency of the material. However, the modeling liquid should feature a hydrophobic composition, similar to that used in the SBMP group, the achieve the best results.

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Section: Discussionmentioning

confidence: 99%

Translucency and color stability of resin composite and dental adhesives as modeling liquids – A one-year evaluation

et al. 2017

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“…Sustained color stability of dental restorative materials remains a challenging factor as it differentiates between restorations' success and failure [1,2]. In this context, materials' properties and fabrication techniques play an important role determining the behavior of the material, which ensure restorations' success.…”

Section: Introductionmentioning

confidence: 99%

Stain susceptibility of composite and ceramic CAD/CAM blocks versus direct resin composites with different resinous matrices

et al. 2016

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To evaluate the stain susceptibility of CAD/ CAM blocks and direct composite after long term exposure to various staining agents. 40 disk-shaped samples were fabricated from each of nine materials; six CAD/CAM (Vitablocs Mark II, Paradigm MZ100, Experimental Vita Hybrid Ceramic, Vita Enamic, Experimental Kerr and Lava Ultimate) and three direct composites (Filtek Supreme, Venus Diamond and Filtek Silorane). Samples were randomly divided into five groups (n = 8) according to different staining solutions (distilled water, tea, red wine, coffee and artificial saliva). Initial L*a*b* values were assessed using a calibrated digital spectrophotometer. Specimens were immersed in staining solutions and stored in an incubator at 37°C for 120 days. L*a*b* values were assessed again and color change (DE) was calculated as difference between recorded L*a*b* values. ANOVA, and Duncan test were used to identify differences between groups (a = 0.05). Significant differences in DE values were detected between materials (p = 0.000). Among all staining solutions, the highest DE value was observed with red wine. The new CAD/CAM blocks (Vita Enamic, Vita Hybrid Ceramic and Lava Ultimate) showed the highest resistance to staining compared to the MZ100 composite resin blocks. Filtek Silorane, a direct composite, showed high stain resistance values compared to CAD/CAM materials and other direct composites. Ceramic and composite CAD/CAM blocks had lower staining susceptibility than methacrylate based direct composite. Staining susceptibility of the new resin based CAD/CAM materials Vita Enamic and Lava Ultimate was comparable to feldspathic ceramic blocks (Vitablocs Mark II). Filtek Silorane showed promising results that were comparable to some CAD/CAM blocks.

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“…Several studies [2][3][4][5][6][7][8] in the literature have shown that foods and beverages present in patients' diet, especially those containing alcohol, 33 sugar 3,26 and acid 12,16 in their composition, can promote change in the color of esthetic restorative materials. The KAPO  juice used in this study, irrespective of the flavor tested, has citric acid and sugar in its composition, but possibly in insufficient amount to promote color change.…”

Section: Discussionmentioning

confidence: 99%

“…However, when this material is present in the oral environment, it becomes vulnerable to the infl uence of some factors that may result in staining [2][3][4][5][6][7][8] .…”

Section: Introductionmentioning

confidence: 99%

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Effect of finishing and polishing on color stability of a nanofilled resin immersed in different media

Oliveira

Lorenzetti

Garcia

et al. 2014

Rev. odontol. UNESP

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ResumoObjetivo: O objetivo deste estudo foi avaliar o efeito do acabamento e polimento na estabilidade de cor da resina nanoparticulada Filtek Z350 XT em função de diferentes meios de imersão. Material e método: Espécimes circulares (10 mm de diâmetro e 2 mm de espessura) foram preparados para cada grupo (n=6) utilizando uma matriz de aço inoxidável. Os grupos experimentais foram divididos de acordo com a presença ou ausência de acabamento e polimento e diferentes meios de imersão (saliva artificial, Suco artificial pronto KAPO  da Coca-Cola  sabores: abacaxi, laranja, morango e uva). Os procedimentos de acabamento e polimento foram realizados com discos de lixa Super-Snap  . Os espécimes permaneceram em saliva artificial por 24 horas (baseline) e foram submetidos à análise da cor usando um espectrofotômetro pelo sistema CIELab. Em seguida, foram imersos nos diferentes meios por 5 minutos, 3 vezes ao dia, com intervalos de 4 horas, durante 60 dias. Os espécimes foram mantidos em saliva artificial a 37±1°C nos intervalos entre as imersões. Após este período foi realizada nova leitura de cor. Os dados foram analisados com os testes de Kruskall-Wallis e Mann-Whitney. O nível de significância foi de 5%. Resultado: Os resultados mostraram que o acabamento/polimento não influenciou significativamente a estabilidade de cor da resina composta (p>0,05). Não houve diferença estatisticamente significativa na estabilidade de cor da resina estudada após a imersão nos diferentes meios (p>0,05). Conclusão: O acabamento e polimento e os meios de imersão não apresentaram influência na estabilidade de cor da resina nanoparticulada Filtek Z350 XT.Descritores: Resinas compostas; cor; polimento dental. AbstractObjective: The purpose of this study was to evaluate the effect of finishing and polishing on color stability of a nanofilled composite resin (Filtek Z350 XT) according to different immersion media. Material and method: Composite disks (10 mm diameter, 2 mm thickness) were prepared for each group (n = 6) using a stainless steel mold. The groups were divided according to the presence or absence of finishing and polishing procedure and immersion media (artificial saliva, artificial juice-KAPO  Coca-Cola  flavors: pineapple, orange, strawberry and grape). The finishing and polishing procedures were performed using Super -Snap  disks. The specimens were stored in artificial saliva for 24 hours (baseline) and were analyzed using a color spectrophotometer by CIELab system. Then, they were immersed in different media for 5 minutes, 3 times a day, every 4 hours during 60 days. They were stored in artificial saliva at 37 ± 1°C during the immersion intervals. After this time, new measure of color was performed. The data were analyzed using Kruskall-Wallis test and Mann-Whitney test. The significance level was 5%. Result: The results showed that the finishing/polishing not significantly influence the color stability of resin composite (p > 0.05). There was no statistically significant difference in the color stability of the studie...

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Color stability of a nanofill composite: effect of different immersion media

Cited by 191 publications

References 17 publications

Translucency and color stability of resin composite and dental adhesives as modeling liquids – A one-year evaluation

Translucency and color stability of resin composite and dental adhesives as modeling liquids – A one-year evaluation

Stain susceptibility of composite and ceramic CAD/CAM blocks versus direct resin composites with different resinous matrices

Effect of finishing and polishing on color stability of a nanofilled resin immersed in different media

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