Surface discoloration of restorative resins in relation to surface softening and oral hygiene

Asmussen, Erik; Hansen, Erik Keith

doi:10.1111/j.1600-0722.1986.tb01382.x

Cited by 88 publications

(102 citation statements)

References 3 publications

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“…Color change in resin-based restorations may be caused by changes in the material structure and formation of colored degradation products, by change in the surface morphology or by extrinsic staining (Vogal, 1975;Asmussen and Hansen, 1986).…”

Section: Discussionmentioning

confidence: 99%

“…Nevertheless; questions have been raised regarding the effect of bleaching agents on physical properties, surface morphology and color of restorative materials (Attin et al, 2004). In some investigations, softening, and in turn discoloration, of composite resins was associated with the application of bleaching gels (Asmussen and Hansen, 1986;Turker and Biskin, 2002;Yu et al, 2009). However, others revealed no significant effect on surface hardness and physical properties of composite resin restorations after the application of bleaching agents (Garcia-Godoy et al, 2002;Cullen et al, 1993;Yap and Wattanapayungkul, 2002).…”

Section: Introductionmentioning

confidence: 99%

“…Under oral conditions, the esthetic restorations could be exposed to combined effects of light, moisture, oral habits such as tobacco use and certain dietary patterns such as caffeine intake, which might lead to external discoloration. RBC restorations may also become discolored due to intrinsic factors such as hydrolysis of the organic matrix or loosening of the filler particles due to faulty silaniation (Vogal, 1975;Asmussen and Hansen, 1986;Dietsch et al, 1994).…”

Section: Introductionmentioning

confidence: 99%

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The effectiveness of four methods for stain removal from direct resin- based composite restorative materials

2014

Br Dent J

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Background/purpose: Few studies investigated the best method for removing stains from different types of resin-based composite restorations and compared them to the more recently introduced nanocomposites. This study compared the effect of four methods for stain removal from composite resins; finishing with Sof-lex disks, using pumice and brush, bleaching with 10% carbamide peroxide and 38% hydrogen peroxide.Materials and methods: Twenty disk specimens were prepared. Specimens were immersed in a staining solution for 3 weeks. The stained surfaces of five specimens from each RBC material were treated with one of the treatment procedures. Colorimetric measurements were taken using spectrophotometer prior to and after staining, and then repeated after surface treatments. Color difference values were calculated.Results: One-way ANOVA indicated significant differences in color change of the three composite resin materials following staining. Filtek Z250 showed the least susceptibility to discoloration followed by Renamel, Filtek Supreme was the material most prone to discoloration. Two-way ANOVA and Tukey's Post Hoc showed that all stain removing procedures except polishing with pumice, were able to return Filtek Z250 to clinically acceptable color difference. While bleaching with 38% carbamide peroxide was not effective with Renamel. Only pumice and 10% carbamide peroxide were able to return Renamel to clinically acceptable color difference.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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The effectiveness of four methods for stain removal from direct resin- based composite restorative materials

2014

Br Dent J

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“…Although modern resins have many advantages over other aesthetics materials used until now, they are still short from providing optimal color appearance due to intrinsic and extrinsic factors (Asmussen and Hansen, 1986;Gupta et al, 2005). Impregnation from food and beverage pigments is considered the main extrinsic pigmentation factor (Asmussen, 1983).…”

Section: Introductionmentioning

confidence: 99%

Color change using HSB color system of dental resin composites immersed in different common Amazon region beverages

et al. 2009

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The purpose of this study is to evaluate in vitro the color stability of composite resins when exposed to beverages with high coloring contents from the Amazon region. 240 samples from four different composite brands (Natural Look, Z350, 4Seasons and Opallis) of hue A3 were fabricated using an acrylic matrix. The samples were stored in distilled water at 37°C for 24 hours. The initial color (T0) was registered using a Canon EOS Rebel XTi 10 mp camera, and then the samples were divided into four groups (n=15): G1 (coffee), G2 (açaí juice), G3 (energetic guaraná) and G4 (control -distilled water). The samples were exposed to solutions of DES (6hs) and RE (18hs) and placed in a double boiler under constant agitation, at 37°C for 30 days. The samples were immersed in the coloring solutions for 15 minutes daily. After 7, 15 and 30 days, new photographic registers were made (T1, T2 and T3). The images were analyzed using Corel PHOTO-PAINT 12 software to identify the colors through the HSB system. The Kruskal-Wallis and t tests (p<0.05) demonstrated significant differences in color (hue, saturation and brightness). The results revealed that none of the tested composites showed color stability when exposed to coloring solutions, and that the Amazon region beverages (açaí juice and energetic guaraná) showed to be less coloring than coffee. KEYWORDS:Composite Resins, Coloring Agents, Color Perception Tests. Alteração de cor de resinas compostas imersas em diferentes bebidas comuns da região Amazônica, utilizando o sistema de cor HSB RESUMOEste estudo propôs avaliar in vitro a estabilidade de cor de alguns compósitos quando expostos a bebidas da Região Amazônica com alto teor de corante. Foram confeccionados 240 corpos de prova (CP) de quatro resinas (Natural Look, Z350, 4Seasons e Opallis) no matiz A3 utilizando uma matriz de acrílico. As amostras foram armazenadas em água deionizada a 37°C por 24 horas. A cor inicial das resinas (T0) foi registrada utilizando a máquina Canon EOS Rebel XTi 10Mp, e em seguida os CP foram divididos em 4 grupos (n=15): G1 (café), G2 (suco de açaí), G3 (guaraná energético) e G4 (controle -água destilada). Os CP foram submetidos às soluções DES (6hs) e RE (18hs) e colocados em banho-maria, sob constante agitação, à temperatura de 37°C durante 30 dias. Diariamente os corpos de prova foram imersos nas soluções corantes durante 15 minutos. Após 7, 15 e 30 dias realizaram-se novos registros fotográficos (T1, T2 e T3). As imagens foram analisadas pelo programa Corel PHOTO-PAINT 12 para a identificação das cores através do sistema HSB. O teste Kruskal-Wallis e teste t (p<0,05) demonstraram que a alteração de cor (matiz, saturação e brilho) indicou diferenças significantes. Foi concluído que nenhuma das resinas testadas apresentou estabilidade de cor quando em contato com as soluções corantes, e que as bebidas da região Amazônica (suco de açaí e guaraná energético) demonstraram ser menos colorantes que o café.

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“…This is especially true when more extensive prostheses require provisional restorations for longer interim periods. Discoloration can be affected by several factors including incomplete polymerization, 1,2 water sorption, 3,4 chemical reactivity, 5,6 diet, 7-9 oral hygiene, 10,11 and surface smoothness of the restoration. [12][13][14][15][16][17] Most materials used for provisional restorations are subject to sorption, a process of absorption and adsorption of liquids depending on environmental conditions.…”

Section: Introductionmentioning

confidence: 99%

Effect of Indian Chromatogens on Color Stability of commercially Available Different Tooth Colored Provisional Restorative Materials: An in vitro Study

Munde¹,

MR²

2016

IJOCR

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Surface discoloration of restorative resins in relation to surface softening and oral hygiene

Cited by 88 publications

References 3 publications

The effectiveness of four methods for stain removal from direct resin- based composite restorative materials

The effectiveness of four methods for stain removal from direct resin- based composite restorative materials

Color change using HSB color system of dental resin composites immersed in different common Amazon region beverages

Effect of Indian Chromatogens on Color Stability of commercially Available Different Tooth Colored Provisional Restorative Materials: An in vitro Study

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