Effect of brushing and accelerated ageing on color stability and surface roughness of composites

Roselino, Lourenço de Moraes Rego; Cruvinel, Diogo Rodrigues; Chinelatti, Michelle Alexandra; Pires‐de‐Souza, Fernanda de Carvalho Panzeri

doi:10.1016/j.jdent.2013.07.005

Cited by 60 publications

(67 citation statements)

References 39 publications

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“…The final roughness of the ceramics was comparable to the original, which is in agreement with studies evaluating resistance to toothbrush abrasion 8,22 .…”

Section: Discussionsupporting

confidence: 88%

“…However, analysis of the CIELAB color scale coordinates (L *, a *, and b *) showed significant changes in the values of L*. The lightness is the ability of the material to reflect direct light and is closely related to the surface characteristics of the material, ranging from light (100) to dark (0) 8,30 .…”

Section: Discussionmentioning

confidence: 99%

“…Over time, intraoral degradation also interferes with the fracture strength of the material, culminating in a lower durability of the restoration in the long term 6 . Surface texture, gloss and color are also included among the important characteristics that determine the aesthetic effect of these composite restorations, and they are also influenced by the intraoral surroundings 7,8 .…”

Section: Introductionmentioning

confidence: 99%

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Biological and mechanical degradation affecting the surface properties of aesthetic restorative

et al. 2017

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Aim: To evaluate the roughness (Ra), Knoop hardness (KHN) and change of color (∆E) of esthetic restorative materials (Filtek Z350-composite nanoparticle; Empress Direct-composite nanohybrid and IPS e.Max-ceramic) subjected to contact with the Streptococcus mutans biofilm (biological degradation) associated with abrasion generated by tooth brushing (mechanical degradation). Methods: Ten specimens of each material were prepared, and the surface properties initial were evaluated. All specimens were exposed to Streptococcus mutans inoculum; after 7 days, surface properties were evaluated. The specimens were submitted to a 30,000 toothbrushing cycles, using a toothpaste slurry, then, surface properties were evaluated again. Data were analyzed by Proc-Mixed, One-way ANOVA, Tukey-Kramer and Tukey's tests (α = 0.05). Results: At the baseline, ceramic showed the highest Ra and KHN values; after the biological degradation the composites showed increased Ra, but KHN did not change; after the mechanical degradation, Empress showed decreased Ra and Z350 showed similar Ra, the KHN increased to both composites, and all materials had increased lightness after the mechanical degradation. Conclusions: The results suggest that, when exposed to Streptococcus mutans biofilm and toothbrush abrasion, the ceramics undergoes minimal degradation and the composites exhibited variable degradation, depending on the composition of the material.

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“…The final roughness of the ceramics was comparable to the original, which is in agreement with studies evaluating resistance to toothbrush abrasion 8,22 .…”

Section: Discussionsupporting

confidence: 88%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Biological and mechanical degradation affecting the surface properties of aesthetic restorative

et al. 2017

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“…According to some studies, a higher quantity of BisGMA offers less resistance to abrasion to the material, 8,35 and the increase of monomers 1,6-bis (methacryloxy-2-ethoxycarbonylamino)-2,4,4-trimethylhexane (UDMA) and triethylene glycol dimethacrylate (TEGDMA) in the composition of these materials can promote more resistance to abrasion. 35,37,38 Therefore, the behavior of these monomers seems to follow the results obtained in this study, for Vertise Flow contains Bis-GMA but does not contain UDMA and TEGDMA monomers, found in Fusion Liquid Dentin and Z350. Although there was a difference in the amount of filler particles (%vol), after the abrasive procedure there was no statistical difference in roughness values of Fusio Liquid Dentin and Filtek Z350.…”

supporting

confidence: 82%

“…Due to the presence of three etoxi groups in its main chain, this monomer has a higher propensity to water absorption. 16,38,48 …”

mentioning

confidence: 99%

Surface Texture and Optical Properties of Self-Adhering Composite Materials after Toothbrush Abrasion

Malavasi

Macedo

Souza

et al. 2015

The Journal of Contemporary Dental Practice

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This study evaluated the surface texture and optical properties of two self-adhering composites and a nanofilled composite before and after toothbrush abrasion. Vertise Flow (Kerr), Fusio Liquid (Pentron Clinical) and Filtek Z350 XT (3M ESPE) composites were divided into 3 groups (n = 6). Disks of 12 mm diameter and 2 mm thick were made. All materials were light-cured with a LED light source for 40 seconds. Analyses of surface roughness, gloss retention and color stability were performed 24 hours after light curing and after 20,000 brushing cycles. Data were analyzed with analysis of variance (ANOVA) and Tukey's test (α = 5%).Results: Tukey´s test ascertained that toothbrush abrasion resulted in rougher and matte surfaces for all composites tested. Filtek Z350 presented better gloss retention after abrasion. On surface roughness evaluation, there was no statistical difference between Fusio Liquid Dentin and Filtek Z350 resins (p > 0.05). Vertise Flow resin showed better color stability (ΔE), than the other two materials.Conclusion: Nanofilled material presented better gloss retention but it did not produce the best results in aspects related to surface roughness and color stability compared to self-adhering composites.

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Color Mismatch Between the Restoration and the Natural Tooth Over Time

Schneider

Cavalcante

2022

Color Science and Shade Selection in Operative Dentistry

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Effect of brushing and accelerated ageing on color stability and surface roughness of composites

Cited by 60 publications

References 39 publications

Biological and mechanical degradation affecting the surface properties of aesthetic restorative

Biological and mechanical degradation affecting the surface properties of aesthetic restorative

Surface Texture and Optical Properties of Self-Adhering Composite Materials after Toothbrush Abrasion

Color Mismatch Between the Restoration and the Natural Tooth Over Time

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