Color Stability Over Time of Three Resin‐Based Restorative Materials Stored Dry and in Artificial Saliva

Uchimura, Joana Yumi Teruya; Sato, Francielle; Bianchi, G.; Baesso, Mauro Luciano; Santana, Rosângela Geritana; Pascotto, Renata Corrêa

doi:10.1111/jerd.12106

Cited by 24 publications

(24 citation statements)

References 17 publications

(78 reference statements)

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“…Visual thresholds greatly supplement traditional descriptive and analytical statistics in color research. Perceiving a difference in color and whether this difference is acceptable is of paramount importance, and has been used dental research for interpreting bleaching efficacy, comparing between visual and instrumental shade matching, dental shade guides, and other areas related to color compatibility, color stability, and color interaction …”

Section: Introductionmentioning

confidence: 99%

Color Difference Thresholds in Dentistry

Paravina

Ghinea

Herrera

et al. 2015

J Esthet Restor Dent

894

956

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Visual color difference thresholds can serve as a quality control tool to guide the selection of esthetic dental materials, evaluate clinical performance, and interpret visual and instrumental findings in clinical dentistry, dental research, and subsequent standardization. The importance of quality control in dentistry is reinforced by increased esthetic demands of patients and dental professionals.

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Section: Introductionmentioning

confidence: 99%

Color Difference Thresholds in Dentistry

Paravina

Ghinea

Herrera

et al. 2015

J Esthet Restor Dent

894

956

View full text Add to dashboard Cite

show abstract

“…Of note, after 4 months of wine storage, the presence of modeling liquid had no beneficial effect on the color stability of the RC, although this was only observed if the material was polished (Figure 1d and Table 1). The staining of the composite restorations has been revealed to be a time-dependent process, 21 and it may be that a duration of 4 months is too short to detect significant differences between two distinct treatment modalities. After 6 months of wine storage, significant differences were observed between the specimens with and without modeling liquid, regardless of the polishing state of the material.…”

mentioning

confidence: 99%

Effects of modeling liquid/resin and polishing on the color change of resin composite

et al. 2016

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Modeling liquids/resins have been used to build up resin composite (RC) restorations, although there is a lack of information regarding their effects on the color stability of the latter. Therefore, the purpose of the present study was to evaluate the effects of the presence of modeling liquid between layers of RC and the finishing/polishing state of the material on color change in specimens exposed to red wine staining over time. Specimens were prepared by placing four increments (±0.5 mm thick) of RC (Filtek™ Z350 XT, 3M ESPE) into molds; half of which were prepared by applying modeling liquid (Scotchbond™ Multi-Purpose™ Adhesive, SBMP, 3M ESPE) between the layers of RC, whereas the other half were prepared without SBMP (control). Light-activation was performed after application of the final RC layer using a light-emitting diode (Radii, SDI) curing unit with an irradiance of 900 mW/cm 2 for 20 s. Each group was divided according to the surface finishing protocol (n = 7): nothing (non-polished) or polishing with Sof-Lex™/diamond paste (polished). Initial colors of the specimens were evaluated with a digital spectrophotometer and the CIEL * a * b * color system. The specimens were stored in wine (37°C) for 12 months, and the color measurements were reassessed after 4, 6, and 12 months of storage. Scanning electron microscopy (SEM) analysis was performed at the end. Data were analyzed using ANOVA and Tukey's test (α = 5%). The presence of SBMP resulted in lower overall color change of the RC as compared with the control. The non-polished specimens exhibited a significantly higher color change than the polished specimens. SEM images corroborated the previous findings. In summary, the use of modeling liquid between layers of RC shows potential for application to reduce or delay the staining process of RC over time. Moreover, polishing is essential to provide increased color stability of the RC restoration.

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“…However, little is known about the variables influencing the intrinsic color change occurring after the light-activation [21]. Since the final color of a resin composite is curing-dependent, it may be hypothesized that different light-activation protocols would play a role in the final color of the material.…”

Section: Introductionmentioning

confidence: 99%

Color changes induced by light curing of resin composites

Mondelli

Tavares

Medina-Valdivia

et al. 2017

RSBO

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Introduction: Color changes that occur after the light-activation of resin composites should be understood. Objective: To evaluated the influence of light-curing devices on the color of resin composites immediately after light-activation and after one-week, at 37ºC, into water storage. Material and methods: Three A2-shade composites (Z100, Z250, and Z350), and four light-curing devices (three halogens and one LED) were evaluated. Seventy-five cylindrical specimens were light-activated for 20s. CIE-Lab color was analyzed using a spectrophotometer. Color changes between uncured and immediately light-activated materials (∆E 1 ), and between immediately light-activated and one-week-37˚C-water-stored materials (∆E 2 ) were obtained. Data were evaluated by two-way Anova, followed by Tukey test (α = 0.05). Results: For ∆E 1 , composites (p = 0.0008), lights (p = 0.015), and the interaction (p = 0.017) were significant. Z100 showed the smallest value (3.08 ± 1.73). The halogen 210 mW/cm 2 device showed the smallest ∆E 1 (3.09 ± 1.25), while the LED 200mW/cm 2 showed the highest value (4.94 ± 2.37). For ∆E 2 , composites (p = 0.00016), lights (p < 0.0001), and the interaction effect (p = 0.0002) were significant. Z350 showed the smallest value (2.24 ± 1.17). The halogen 400mW/cm 2 device showed the smallest ∆E 2 (2.15 ± 2.15), while the halogen device 525mW/cm

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Color Stability Over Time of Three Resin‐Based Restorative Materials Stored Dry and in Artificial Saliva

Cited by 24 publications

References 17 publications

Color Difference Thresholds in Dentistry

Color Difference Thresholds in Dentistry

Effects of modeling liquid/resin and polishing on the color change of resin composite

Color changes induced by light curing of resin composites

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