Changes in gloss after simulated generalized wear of composite resins

Lee, Yong Keun; Lü, Huan; Oguri, Makoto; Powers, John M.

doi:10.1016/j.prosdent.2005.08.006

Cited by 79 publications

(93 citation statements)

References 22 publications

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“…Chemical factors play a fundamental role in the degradation process of the composite resins surface 17) . The influence of the chemical degradation reflects in a change of the surface roughness and microhardness 18) . The current results indicated changes on the surface of different dental composites with reduced microhardness when exposed for 30 days in alcoholic beverages.…”

Section: Discussionmentioning

confidence: 99%

Effect of alcoholic beverages on surface roughness and microhardness of dental composites

Silva

Vitti

Sinhoreti

et al. 2016

Dental Materials Journal

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The aim of this study was to evaluate the microhardness and surface roughness of composite resins immersed in alcoholic beverages. Three composite resins were used: Durafill (Heraeus Kulzer), Z250 (3M-ESPE) and Z350 XT (3M-ESPE). The inital surface roughness and microhardness were measured. The samples were divided into four groups (n=30): G1-artificial saliva; G2-beer; G3-vodka; G4-whisky. The samples were immersed in the beverages 3× a day for 15 min and 30 days. The surface roughness and microhardness assays were repeated after immersion period. The data were statistically analyzed by two-way ANOVA and Tukey-HSD test (p<0.05). Surface roughness increased for all composite resins immersed in beer and whisky. Microhardness of all groups decreased after immersion in alcoholic beverages. The effect of these beverages on dental composites is depended upon the chemical composition, immersion time, alcohol content and pH of solutions.

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Section: Discussionmentioning

confidence: 99%

Effect of alcoholic beverages on surface roughness and microhardness of dental composites

Silva

Vitti

Sinhoreti

et al. 2016

Dental Materials Journal

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“…1C), which may have further contributed to its highest gloss, since an inverse linear relationship between gloss and roughness has been cited in the literature, due to the increase in surface irregularity affecting the reflection of light. 12,21 However, the gloss is influenced not only by surface roughness, but also by differences in the refractive indices of the matrix and particles present in each resin, 22 which could account for the higher loss of gloss for the resin Amelogen Plus, even with low surface roughness after challenges (Fig. 1B).…”

mentioning

confidence: 99%

Influence of Mechanical and Chemical Degradation in the Surface Roughness, Gloss, and Color of Microhybrid Composites

Lemos¹,

Mauro²,

Santos³

et al. 2017

The Journal of Contemporary Dental Practice

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Aim:The aim of this study was to investigate the association of different degradations on the roughness, gloss, and color changes of microhybrid composites. Materials and methods:Ten specimens were prepared for Charisma, Amelogen Plus, Point 4, and Opallis resins. Surfaces were polished and baseline measurements of roughness, gloss, and color were recorded. Specimens were then submitted to chemical and mechanical challenges, and the specimens were reevaluated. Roughness and gloss were analyzed by KruskalWallis and Dunn's test (p < 0.05). Color change (ΔE) was analyzed by one-way analysis of variance and Tukey's tests (p < 0.05). The initial and final data were compared using the Wilcoxon test (p < 0.05). Spearman test checked the correlation between the roughness and gloss (p < 0.05). Results:Regarding surface roughness and gloss, there was no difference between composites before challenges. However, all composites showed a significant increase of roughness after challenges, with highest values for Charisma. The gloss was influenced by challenges, evidencing the best gloss for Point 4. Charisma showed the highest value of color change. There was no correlation between surface roughness and gloss for the initial analysis, and after the challenges. Conclusion:Composites were influenced by association of challenges, and Charisma showed the highest changes for roughness, gloss, and color. gloss, and color change. The dentist should be aware of the performance of different brands, to choose the correct required composite resin for each type of patient or region to be restored.

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“…Since the characteristics of durability and quality of material's surface (roughness, gloss and color) might be related to abrasion resistance, 15,18,22,29 in vivo, they are daily influenced by general factors, such as the pressure made by patient while brushing, the toothbrush bristle's consistence, the brushing moment and the toothpaste abrasiveness.…”

Section: Discussionmentioning

confidence: 99%

“…It is known that the surface roughness, gloss retention and color stability are among the most important characteristics of surface texture that influence the appearance of composite resins and clinical performance. 1,[12][13][14][15] Color stability is vital for the longevity of direct restorations in esthetically important areas. 16 In vitro studies, [17][18][19][20] showed that resin-based composites are susceptible to staining and discoloration.…”

Section: 9mentioning

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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Changes in gloss after simulated generalized wear of composite resins

Cited by 79 publications

References 22 publications

Effect of alcoholic beverages on surface roughness and microhardness of dental composites

Effect of alcoholic beverages on surface roughness and microhardness of dental composites

Influence of Mechanical and Chemical Degradation in the Surface Roughness, Gloss, and Color of Microhybrid Composites

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

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