Composite degradation in vivo

Groeningen, G. van; Jongebloed, W.L.; Arends, J

doi:10.1016/s0109-5641(86)80018-5

Cited by 82 publications

(65 citation statements)

References 5 publications

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“…According to previous studies, the degree of composite staining can be affected by several factors such as incomplete polymerization, [17,18] water sorption, [19,20] chemical reactivity [21,22], diet, [23- [26,27] and surface smoothness of the restoration [28][29][30]. In this study, we decided to investigate only the effects of exogenous staining factors such as red wine, coffee, tea, orange juice and cola and their influence on the color stability of the composites material.…”

Section: Discussionmentioning

confidence: 99%

Color stability of recent composite resins

et al. 2016

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The objective of the study was to evaluate the color stability of 8 recently developed resin composites when exposed to various staining agents. Six disc-shaped specimens made out of 8 resin composite materials were immersed in artificial saliva, coffee, coke, tea, orange juice and red wine. The initial color (T0) of the 288 specimens was assessed by a calibrated reflectance spectrophotometer (SpectroShade, MHT) over a black as well as a white background. All specimens were kept in an incubator (INP-500, Memmert GmbH) at 37°C for 4 weeks. Colorant solutions were changed every 7 days to avoid bacteria or yeast contamination. After 4 weeks of storage in the colorants (T1), spectrophotometric measurements were repeated and DE00 was calculated. When analyzed over a white background, the mean DE00 values varied from 1.5 (Venus Diamond) to 52.4 (Miris 2). When analyzed over a black background, the mean DE00 values varied from 0.8 (Venus Diamond) to 40.0 (ELS). Significant differences were detected when comparing values at T0 and T1 (DE00) for both backgrounds (Anova and Fisher's LSD post hoc test). Resin composite materials do behave in a significantly different way (p value \ 0.01) when exposed to various staining solutions.

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Section: Discussionmentioning

confidence: 99%

Color stability of recent composite resins

et al. 2016

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“…This means that poor-quality provisional restorations may lead to treatment complications, patient dissatisfaction, and perhaps even additional expenses for replacement. One pertinent aspect of quality is the color stability of the dental restorative material, which depends on several factors such as degree of conversion 4,5) , water sorption 6,7) , chemical reactivity 8,9) , diet [10][11][12] , oral hygiene 13,14) , and surface roughness 12,[15][16][17][18][19] . Besides, the color change of provisional restorations may be related to poor biocompatibility and decreased mechanical properties 18) .…”

Section: Introductionmentioning

confidence: 99%

Effects of different food colorants and polishing techniques on color stability of provisional prosthetic materials

2010

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The main objective was to investigate the effects of different polishing techniques on the color stability of provisional prosthetic materials upon exposure to different staining agents by mimicking the oral environment in vitro. Fifty-six cylindrical specimens were prepared for each type of material: bis-acryl and light-polymerized composite resins, and methyl methacrylate-and ethyl methacrylatebased resins. The specimens were polished using seven different polishing techniques and then immersed in four different staining agents. Color was measured with a spectrophotometer before and after immersion, and color changes (ΔE) were calculated. The effects of the type of provisional material, polishing procedure, staining agent, and their interactions on color stability were significant (p<0.05). Amongst these factors, the staining agent exerted the strongest effect on color stability. Amongst the provisional materials tested, methacrylate-based resins exhibited the highest color stability irrespective of polishing technique and staining agent.

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“…The color stability of the provisional restorative materials can be affected by various factors, [1][2][3][4][5][6][7][8][9][10][11][12][13][14][15][16][17][18][19] but chemical discoloration has been attributed to the oxidation of polymer matrix or oxidation of unreacted double bonds in the residual monomers and the subsequent formation of degradation products from water diffusion. 8 The color changes in the present study showed that the DPI heat cure was most color stable followed by self-cure restorative material, whereas the Revotek LC light cure restorative material was the least color stable.…”

Section: Discussionmentioning

confidence: 99%

“…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. 18 Should a contacting solution be pigmented, discoloration is possible.…”

Section: Introductionmentioning

confidence: 99%

“…[8][9][10][11][12][13][14][15][16][17][18][19] However, the effect of commonly consumed chromatogens by the Indian population on provisional restorative materials still remains unknown. Therefore, the purpose of this study was to evaluate and compare color stability of commercially available different types of tooth colored provisional restorative materials in tea, tobacco, and sambhar solution over a period of 1, 2, and 4 weeks.…”

Section: Introductionmentioning

confidence: 99%

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