In situ evaluation of color stability and hardness' decrease of resin‐based composites

Ribeiro, Juliana Silva; Peralta, Sonia Luque; Salgado, Vinícius Esteves; Lund, Rafael Guerra

doi:10.1111/jerd.12319

Cited by 11 publications

(7 citation statements)

References 31 publications

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“…Every day all the immersion solutions were renewed for all specimens; the specimens were washed with distilled water and dried with absorbent paper before the new immersion for 28 days. 6 At the end of the 28 days the effect of the immersion solutions on the color of the tested materials was examined through obtaining the post immersion spectrophotometric values (ΔE2).…”

Section: Immersion Solutionsmentioning

confidence: 99%

Effect of Different Immersion Solutions on Color Stability of One Bulk-Fill Resin Composite and Two Types of CAD/CAM Ceramics

Aboushahba

Younis

Afifi

2020

Egyptian Dental Journal

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Objective: This study aimed to evaluate the effect of immersion solutions on color stability of two thicknesses of bulk-fill composite and two CAD/CAM ceramics. Materials and methods: One Bulk-fill (X-tra fil) composite (2 and 4mm increment) and two types of CAD/CAM ceramics (ViteEnamic and VitablocsMark II) were used. Forty two composite specimens were prepared with two different thicknesses, also twenty-one specimens of each ceramic material (2 mm in thickness) were prepared for color change evaluation after immersion in distilled water, cola and coffee. Kruskal-Wallis test was used to compare between materials as well as to compare between immersion solutions. Dunn's test was used for pair-wise comparisons when Kruskal-Wallis test is significant. The significance level was set at P ≤ 0.05. Results: In distilled water there was no statistically significant difference between values of composite and vitaenamic, both were statistically higher than vitamark II, with cola X-trafil 2 mm showed the statistically significantly highest median ΔE, 4 mm showed statistically significantly lower median value, there was no statistically significant difference between ceramics; both showed the statistically significantly lowest median ΔE values. With coffee there was no statistically significant difference between X-trafils; both showed the statistically significantly highest median ΔE values, and no statistically significant difference occurred between ceramics; both showed the statistically significantly lowest median ΔE values. Conclusion: Composites are unable to retain the color they possessed after storage, but the color of both types of ceramic is stable even after immersion and storage in distilled water, cola and coffee.

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Section: Immersion Solutionsmentioning

confidence: 99%

Effect of Different Immersion Solutions on Color Stability of One Bulk-Fill Resin Composite and Two Types of CAD/CAM Ceramics

Aboushahba

Younis

Afifi

2020

Egyptian Dental Journal

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“…Color changes of control universal composites, microhybrid Z250 and Gradia and nanohybrid Z550, were in the Δ E ab range of 7.3‐9.8. This was about 20% to50% greater color difference compared to a recent in vivo study reporting Δ E ab ~ 6.0 as color changes of two composites (microhybrid IPS Empress Direct and nanofilled Z350) after only 10 days of daily exposure to 140 mL of red wine . This finding illustrates the applicability of in vitro storage conditions, which, although oversimplified, may indeed reveal color differences comparable to in vivo setting.…”

Section: Discussionmentioning

confidence: 79%

“…No differences in ΔE oo were found between corresponding groups of different composites covering Biodentine or everX. Conversely, HAP resulted lower ΔE oo in Z250_HAP than Gradia_HAP group.Lower initial chromaticity of Z250 than Gradia, as previously determined,15 could be related to lower color changes in Z250 after staining.Color changes of control universal composites, microhybrid Z250and Gradia and nanohybrid Z550, were in the ΔE ab range of 7.3-9.8.This was about 20% to50% greater color difference compared to a recent in vivo study reporting ΔE ab~6 .0 as color changes of two composites (microhybrid IPS Empress Direct and nanofilled Z350) after only 10 days of daily exposure to 140 mL of red wine 33. This finding illustrates the applicability of in vitro storage conditions, which, although oversimplified, may indeed reveal color differences comparable to in vivo setting.…”

mentioning

confidence: 60%

Color stability of bulk‐fill and universal composite restorations with dissimilar dentin replacement materials

Miletić

Marjanovic

Veljović

et al. 2019

J Esthet Restor Dent

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Objective To determine color changes in bulk‐fill composite and universal composite restorations with dissimilar dentin replacement materials in extracted teeth after staining in red wine. Materials and Methods Cylindrical, 4 mm deep, class I cavities were prepared in 140 human molars. Bottom 2 mm was restored with Biodentine (Septodont), everX posterior (GC) or experimental HAP inserts. Each dentin replacement material was covered with a 2‐mm layer of a universal composite Filtek Z250 or Z550 (3M ESPE) or Gradia Posterior (GC). Groups combining top composite layer and the underlying dentin replacement were designated as “composite_dentin replacement.” Filtek Bulk Fill (3M ESPE) and Tetric EvoCeram Bulk Fill (Ivoclar Vivadent) were placed as a single 4‐mm layer. Color measurements were performed using Vita Easyshade 4.0 (Vita Zahnfabrik) initially and after 48‐hours storage in red wine at 37°C. Results Color differences (ΔEoo) ranged between 2.1 ± 0.7 (Z250_HAP) and 7.8 ± 1.1 (Z550_everX). EverX resulted in higher ΔEoo of the overlying composite than HAP (P < .001) and Biodentine (P = .006). Generally, ΔEoo was affected more by decreasing lightness (ΔL′) than changes in chroma (ΔC′). Conclusions EverX resulted in higher ΔEoo of the restoration than Biodentine and experimental HAP after staining in red wine. No significant differences in ΔEoo may be expected in different composites with the same underlying dentin replacement material. The same was generally true for bulk‐fill and universal composites. Clinical Significance Similar extent of color changes may be expected in bulk‐fill and universal composites. Highly translucent everX might exhibit greater color differences irrespective of the capping composite than non‐translucent materials. Clinicians have a wider choice of composite materials to cover a particular dentin replacement material, for example, everX or Biodentine, as similar color differences may be expected in various overlying composite brands.

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“…However, the bleached enamel was susceptible to staining with red wine at both time points, while it did not influence the bleaching process. The presence of ethanol in alcoholic beverages such as red wine may facilitate the binding of pigments to enamel 23 .…”

Section: Discussionmentioning

confidence: 99%

Evaluation of the effect of tooth polishing on color stability after in-office bleaching treatment

Espíndola-Castro

Celerino

Nascimento

et al. 2020

Rev. odontol. UNESP

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Introduction One of the most commonly used corrective methods for staining teeth is tooth bleaching. However, subclinical alterations may occur in the micromorphology of dental tissues during the bleaching procedure, such as increases in porosity and surface roughness. Consequently, dental enamel may become more permeable and susceptible to staining. Objective To evaluate the influence of tooth polishing after in-office bleaching treatment on color stability. Material and method Thirty-three extracted human molars were used. The teeth were cut in the mesiodistal direction to obtain two samples per tooth (total of 66). The samples were randomly divided into six groups (n=11). Before and after the bleaching treatment, the lightness of the samples and change in lightness (∆L) were determined with a digital spectrophotometer (Easy Shade). The samples were bleached with 35% hydrogen peroxide (three sessions weekly). Three groups were submitted to polishing with felt discs and polishing paste after each session. To simulate the oral conditions during the consumption of colored beverages, the samples were submitted to alternating cycles of immersion in staining solutions (coffee, red wine, and Coca Cola). Result Polishing resulted in an increase of mean lightness of 4.49 in the red wine group, 2.73 in the coffee group, and 4.08 in the cola group. The difference was significant in the red wine group (p<0.022), but not in the coffee or cola group. Conclusion Polishing after in-office bleaching using felt discs and polishing paste can reduce the degree of pigment impregnation in patient with red wine rich diet.

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In situ evaluation of color stability and hardness' decrease of resin‐based composites

Abstract: This in situ study suggests that color stability and hardness' decrease of resin-based composites were dependent on the type of consumed beverage and materials' composition. Patients with esthetic direct restorations should be aware of the degradative potential of them.

Cited by 11 publications

References 31 publications

Effect of Different Immersion Solutions on Color Stability of One Bulk-Fill Resin Composite and Two Types of CAD/CAM Ceramics

Effect of Different Immersion Solutions on Color Stability of One Bulk-Fill Resin Composite and Two Types of CAD/CAM Ceramics

Color stability of bulk‐fill and universal composite restorations with dissimilar dentin replacement materials

Evaluation of the effect of tooth polishing on color stability after in-office bleaching treatment

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