Color stability of sealed composite resin restorative materials after ultraviolet artificial aging and immersion in staining solutions

2011 ◽  
Vol 105 (4) ◽  
pp. 236-241 ◽  
Author(s):  
Anderson Catelan ◽  
André Luiz Fraga Briso ◽  
Renato Hermann Sundfeld ◽  
Marcelo Coelho Goiato ◽  
Paulo Henrique dos Santos
Keyword(s):  
Artificial Aging ◽  
Composite Resin ◽  
Color Stability ◽  
Restorative Materials

Surface Sealant Effect on the Color Stability of a Composite Resin Following Ultraviolet Light Artificial Aging

2019 ◽  
Vol 44 (3) ◽  
pp. 322-330
Author(s):  
A Brooksbank ◽  
BM Owens ◽  
JG Phebus ◽  
BJ Blen ◽  
W Wasson
Keyword(s):  
Artificial Aging ◽  
Composite Resin ◽  
Color Change ◽  
Uv Light ◽  
Light Exposure ◽  
Color Stability ◽  
Acceptable Range ◽  
Color Measurements ◽  
Intergroup Comparison ◽  
Surface Sealant

SUMMARY Objective: To examine how exposure to accelerated artificial aging (AAA) stimuli (ultraviolet [UV] light) affects the color stability of a composite resin following surface sealant (SS) application. Methods and Materials: A total of 30 cylindrical composite resin (Esthet-X) discs were prepared using Teflon-coated rings. The treatment groups, defined by different SS (Seal-N-Sine, PermaSeal, OptiGuard, Biscover LV, and DuraFinish) use, were divided into five groups of six discs each. The discs were subjected to baseline color measurements followed by measurements after surface sealant application (specular included component [SCI] and specular excluded component [SCE]) using a spectrophotometer. Three measurements (SCI and SCE) were performed for a total of 18 readings (test surface) per specimen group. All specimens were then exposed to a UV light source for a total of 382 hours. Color readings of the specimens were again recorded for each group. Quantitative color measurements were executed using Commission Internationale de l'Eclairage L*a*b* calculations. Results: Baseline color measurements of the composite resin discs, following the AAA exposure protocol, revealed no significant differences. A comparison of the composite resin discs before and after SS application (without UV light exposure) showed statistically significant differences using both SCI and SCE measurement criteria. Although significant differences were encountered between the ΔL*, Δa*, Δb*, and ΔE parameters, all specimens (groups) were within the clinically acceptable range (1.0<ΔE≤ 3.3). Again, statistically significant differences were noted (ΔL*, Δa*, Δb*, and ΔE parameters) for all specimen groups receiving SS application, utilizing both SCI and SCE measurements, following exposure to UV light. All groups were within the clinically acceptable range (1.0<ΔE≤ 3.3), except the Durafinish group. The Durafinish SS group experienced significantly greater (p<0.001) overall color change (SCI and SCE) following UV light exposure. An intergroup comparison following UV exposure revealed that the Permaseal, OptiGuard, and Seal-n-Shine SS groups displayed the least amount of color change statistically but not necessarily always perceptibly significant, while the Durafinish group exhibited the greatest color change statistically and perceptibly. Conclusions: The color stability of a composite resin, including the addition of most SSs, was not affected perceptibly by UV light exposure.

Effects of plaque disclosing agents on esthetic restorative materials used in pediatric dentistry

2005 ◽  
Vol 29 (2) ◽  
pp. 143-146 ◽  
Author(s):  
Débora Maki Hino ◽  
Fausto Medeiros Mendes ◽  
José Luiz Guimarães de Figueiredo ◽  
Katya Luce Moura Naves Gomide ◽  
José Carlos Pettorossi Imparato
Keyword(s):  
Composite Resin ◽  
Color Change ◽  
Color Stability ◽  
Pediatric Dentistry ◽  
Fluorescent Dye ◽  
Glass Ionomer ◽  
Basic Fuchsin ◽  
Resin Modified Glass Ionomer ◽  
Restorative Materials ◽  
Materials Used

The aim of study was to evaluate the color stability of tooth-colored restorative materials usually used in pediatric dentistry after the application of two plaque disclosing agents. Twenty specimens of each material: a resin-modified glass ionomer, a composite resin and an ion-releasing composite resin, were prepared. Baseline color evaluation was performed, samples were exposed to the plaque disclosing agents: a basic fuchsin solution and a fluorescent dye, and new color evaluations were made. The resin-modified glass ionomer stained with basic fuchsin presented the greatest color change in the present study, and the fluorescent dye did not show statistically significant changes among the restorative materials. In conclusion, basic fuchsin dyes should be carefully used in children with a great number of tooth-colored restorations. J Clin Pediatr Dent 29(2): 143-146, 2005

Assessment of the effects of staining solutions, carbamide peroxide, and mouthwashes on color stability of composite resin

2014 ◽  
Vol 1 (2) ◽  
pp. 36-41
Author(s):  
Erica Crastechini ◽  
Paula de Siqueira Barbosa ◽  
Heleine Maria Chagas Rego ◽  
Priscila Holleben ◽  
Carlos Rocha Gomes Torres ◽  
...  
Keyword(s):  
Composite Resin ◽  
Color Stability ◽  
Carbamide Peroxide

scholarly journals Evaluation of color stability of different temporary restorative materials

2015 ◽  
Vol 44 (5) ◽  
pp. 262-267 ◽  
Author(s):  
José Vitor Quinelli Mazaro ◽  
Luiz Miguel Minani ◽  
Adriana Cristina Zavanelli ◽  
Caroline Cantieri de Mello ◽  
Cleidiel Aparecido Araújo Lemos
Keyword(s):  
Storage Time ◽  
Color Change ◽  
Artificial Saliva ◽  
Color Stability ◽  
Time Interval ◽  
Acrylic Resins ◽  
Significant Difference ◽  
Restorative Materials ◽  
Before And After ◽  
Level Of Significance

AbstractIntroductionTemporary restorative materials are widely used, however, little is know about their color stability.Objectiveto evaluate the color stability of the following temporary restorative materials: acrylic and bis-acrylic resins after immersion in pigmenting solutions for different periods of storage.Material and methodFour materials were tested (Dêncor/Clássico, Protemp 4/3M ESPE; Structur 2 SC/Voco; Luxatemp AM Plus/DMG) and 30 test specimens (15 mm in diameter and 2 mm thick) per material were fabricated. They were divided according to the storage medium (artificial saliva, saliva + cola type soda, and saliva + coffee) and storage time intervals (2, 5, 7 and 15 days). Color measurements were made before and after immersions, with use of a spectrophotometer, by means of the CIE L*a*b* system. The data were analyzed by the analysis of variance and the Tukey Test, at a level of significance of 5%.ResultAcrylic resin presented greater color stability in comparison with bis-acrylic resins (p<0.001). When bis-acrylic resins were compared no significant difference was observed between the resins Structur and Luxatemp (p=0.767). As regards solutions tested, coffee showed the highest color change values (p<0.001), and the longer the storage time interval, the greater was the color change in all the temporary restorative materials analyzed (p<0.001).ConclusionAcrylic resin presented greater color stability in comparison with bis-acrylic resins (p<0.001). Coffee caused the greatest color change, and immersion time was determinant in color stability of the temporary materials analyzed.

Effects of Immersion Media and Repolishing on Color Stability and Superficial Morphology of Nanofilled Composite Resin

2014 ◽  
Vol 20 (4) ◽  
pp. 1234-1239 ◽  
Author(s):  
Ana Luísa Botta Martins de Oliveira ◽  
Ana Carolina Botta ◽  
Juliana Álvares Duarte Bonini Campos ◽  
Patrícia Petromilli Nordi Sasso Garcia
Keyword(s):  
Statistical Difference ◽  
Composite Resin ◽  
Color Change ◽  
Artificial Saliva ◽  
Color Stability ◽  
Color Reading ◽  
Immersion Medium ◽  
Mixed Analysis ◽  
Mouth Rinses ◽  
Scanning Electron

AbstractThis study evaluated the influence of fluoride mouth rinses and repolishing on the superficial morphology and color stability of nanofilled resin. About 150 specimens were prepared and polished using aluminum oxide discs for 15 s with a pressure of 2 kg. The experimental groups were divided according to the immersion medium (artificial saliva, 0.5% sodium fluoride, Fluordent Reach, Oral B, Fluorgard) and repolishing procedure (without and with). The specimens were continuously immersed for 1 week. Thereafter, half of each sample was repolished. A color reading was performed after 24 h of immersion in the artificial saliva baseline, after continuous immersion, and after repolishing. The superficial morphology was examined using scanning electron microscopy (SEM) in a qualitative way. Color change (∆E) data were submitted to a mixed analysis of variance using a Shapiro–Wilk test (p>0.05 for the different immersion media) and Sidak’s test (p<0.05 for the differences between groups). In the interaction between the repolishing and the immersion media, Fluorgard showed a statistical difference between the ∆E values with and without repolishing (p<0.0001). On the SEM observations, both Fluordent Reach and Fluorgard caused degradation of the superficial resinous matrix of the composite after continuous immersion. This matrix was removed after repolishing.

scholarly journals Quantification of color variation of restorative materials used on pediatric dentistry after pigmentation

2015 ◽  
Vol 63 (4) ◽  
pp. 383-388
Author(s):  
Luísa Bandeira Pires Monteiro LOPES ◽  
Andreia Sofia Lopes de ARAÚJO ◽  
Virginia Barreiros MILAGRE
Keyword(s):  
Composite Resin ◽  
Color Change ◽  
Artificial Saliva ◽  
Pediatric Dentistry ◽  
Color Variation ◽  
Control Group ◽  
Chocolate Milk ◽  
Glass Ionomer Cements ◽  
Glass Ionomer ◽  
Restorative Materials

Objective: To quantify the color variation of two glass ionomer cements and a composite resin used in pediatric dentistry, after being immersed in different pigments agents. Methods: Using two glass ionomer cements (Ketac(tm) Molar and Photac(tm) Fil) and a microhybrid composite resin (Filtek(tm) z250), were produced 40 disks of each material (10 mm in diameter and 2 mm thick). The samples were soaked in artificial saliva (control group), coke, peach Ice Tea(r) and chocolate milk, for 72 hours in an oven at 37ºC. After this period, the samples were washed in 50 ml of distilled water. Finally, using the spectrophotometer, it was made the reading of results. The color change was measured according to the CIE L * a * b * system. Color changes were statistically analyzed using parametric one-way ANOVA and ANOVA with Welch correction, the nonparametric Kruskal-Wallis tests and post-hoc Tukey and Dunnet T3 with p≤ 0.05. Results: The immersion of restorative materials in different pigmentation agents caused a significant color variation on the samples. The agent who presented higher results was the Peach Ice Tea(r). The chocolate milk was the fluid with lowest pigmentation capacity of all restorative materials under study. The greater color variation was found on the Ketac(tm) Molar submerged in Coca-Cola(r) and the smallest on the Filtek(tm) z250 in chocolate milk. Conclusion: All restorative materials were shown to be susceptible to pigmentation by all agents. The Filtek(tm) z250 proved to have better color stability, followed by Photac(tm) Fil and finally by Ketac(tm) Molar.

Effect of two fluoride varnishes on the color stability of three resin-based restorative materials: an in vitro study

2015 ◽  
Vol 7 (4) ◽  
pp. 355-360 ◽  
Author(s):  
Raha Tafaroji ◽  
Mina Biria ◽  
Farhad Ameri ◽  
Hassan Torabzadeh ◽  
Pasha Qahari ◽  
...  
Keyword(s):  
In Vitro Study ◽  
Color Stability ◽  
Vitro Study ◽  
Restorative Materials

scholarly journals Bioadhesive Curcumin-Mediated Photodynamic Inactivation and Its Potential to Cause Undesirable Effects on Dental and Restorative Surfaces

Pharmaceutics ◽  
2021 ◽  
Vol 13 (9) ◽  
pp. 1458
Author(s):  
Bárbara Donadon Reina ◽  
Carolina Santezi Neto ◽  
Patrícia Petromilli Nordi Sasso Garcia ◽  
Marlus Chorilli ◽  
Giovana Maria Fioramonti Calixto ◽  
...  
Keyword(s):  
Surface Roughness ◽  
Liquid Crystal ◽  
Tooth Enamel ◽  
Dental Enamel ◽  
Color Stability ◽  
Composite Resins ◽  
Photodynamic Inactivation ◽  
Restorative Material ◽  
Negative Effects ◽  
Restorative Materials

Curcumin-mediated Photodynamic Inactivation (PDI) has shown great potential to disinfect specific sites on tooth enamel but may involve contact with restorative materials. Thus, before use in dentistry, it is necessary to investigate whether the PDI protocol causes undesirable changes in the surfaces of aesthetic restorative materials and dental enamel. This study investigated the effect of PDI mediated by curcumin (CUR) in a liquid crystal precursor system on color stability (ΔE), surface roughness (Ra), and microhardness (kgf) of three different composite resins and bovine dental enamel specimens. The microhardness and roughness readings were performed 60 days after the treatments while the color readings were performed immediately, 24, 48, and 72 h, 7, 14, 21, 30, and 60 days after the treatments. Results showed that CUR mediated-PDI does not seem to have the potential to promote any esthetic or mechanical changes to the surface of tooth enamel and can be applied safely in clinical practice. However, the results on color, roughness, and hardness obtained for composite resins show that some negative effects can be produced, depending on the type of restorative material; more experiments must be performed with different formulations and, perhaps, with lower concentrations of CUR.

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