Effect of a bleaching agent on the color stability of a microhybrid composite resin. 217 colorimeter (Minolta, Tokyo, Japan) in accordance with the Commission International d'Eclairage (CIE) system and the mean of the readings was calculated. The CIE system describes the colors visible to the human eye and is used to..
Sixty-five composite specimens were randomly divided into five groups of 13 specimens, and labeled. Before placing the samples in different drinks, restoration colors were determined using a spectrophotometer. The first group was stored in distilled water to serve as control. The other groups of specimens were immersed..
Oct 9, 2015 . Colour changes in Gradia Direct composite after immersion in tea, coffee, red wine, Coca-Cola, Colgate mouthwash, and distilled water were evaluated using principal component analysis (PCA) and the CIELAB colour coordinates. The reflection spectra of the composites were used as input data for the..
Estelite Color is a low viscosity, light-cured tint for individualized shade characterizations of direct and indirect resin restorations. Estelite Color can be applied below or in-between the layers of the dental composite restoration to help perfect the overall esthetics of your masterpiece. Available in 13 colors, Estelite Color will..
ferric oxide (Fe2O3, red) or ferric hydroxide (FeOOH, yellow), are frequently used9. Our study aims to add information on the subject by analyzing two Brazilian resin brands: Opallis and Master Fill. The manufacturer of Opallis resin recommends the radiation time in relation to dental resin shade and their different degrees
between the two resin composites tested (Filtek Supre-. meTM and Gradia DirectTM); and (4) there is no signifi- cant colour difference between Sof-LexTM discs polished and plastic strips finished resin composites. MATERIALS AND METHODS. Test material preparations. The two commercially available resin composites in
material.3 Non-uniform colors,11 shade guides that do not match other shade guides, and inadequate control of different shade batches from the same manufacturer further affect the clinician's ability to develop an aes- thetic result.3,11. The colors of many composite resins are synchro- nized to porcelain shade guides
Little research is available on the influence of this type of light source on color stability of composite resins when exposed to different media and immersion time. MATERIAL AND METHODS. The factors under study were: light sources, at three levels (conventional halogen unit, high-power-density halogen unit and LED) and..
Conclusions: All composite resins presented unacceptable color changes after 382 h of aging and different composite resins with same hue, presented different colors before being subjected to the aging process (B2 and C2) and after (B2). It was also observed color difference within a group of the same composite resin and..
Change of Color and Translucency by. Light Curing in. Resin Composites. SUMMARY. Objective. This study evaluated color and translucency changes caused by light curing resin composite materials. Methods. The CIELAB parameters (L*, a* and b*) of disks of A2 and opaque A2 shades of Charisma (Heraeus-Kulzer),
Objective: The aim of this study was to evaluate, in vitro, the color changing of composites after immersion in different substances for different periods. Material and methods: Two microhybrid composite resins: Charisma (Heraeus. Kulzer) and Opallis (FGM) were used. Red wine and acai pulp were also used as immersion..
Regardless the equipment used, the (CIE) L*a*b* color space system is commonly employed in studies of composite resin color stability. This system consists of the following parameters: L*, which refers to luminosity (white to black); a*, which refers to the red-green color axis and b*, which refers to yellow-blue axis
such as coffee, tea or red wine,1316 fruit juices,1720 cola drinks,2123 soy sauce23,24 and mustard and Ketchup,24 could cause significant change in surface color of the composite resin materials. It was found that certain food colorants (e.g., coffee) may cause more severe staining than other (e.g., cola) though they..
AIM: The aim of this study was to evaluate the influence of accelerated artificial aging (AAA) on the color change of composite resins used in dentistry. . All composite resins presented unacceptable color changes after 382 h of aging and different composite resins with same hue, presented different colors before being..
colourless and intangible, it is made up of distinct colour vibrations, which have not only wavelengths but also a. 'corpuscular structure.' The colours in light. One way colours in sunlight . Red has the longest wavelength, is visible and has the ... aesthetics, composite resins, like other tooth coloured restoratives, developed..
We have a great line-up of nine Effect body resins to characterize colors such as discolored teeth. Our extensive range of . Many dental technicians have experienced the situation of crafting an artificial tooth, only to find that there is a visible line between the metal backing and the composite resin. This is because natural..
Spectrophotometric evaluation of color changes of Bleach- shade resin-based composites after staining and bleaching. Aim: The aim of this study was to evaluate the color stability of two commercially available bleach-shade resin composites. (RC) after exposure to 3 storage solutions and the effect of. 3 bleaching agents..
The major disadvantage of resin composites is their color instability, which may be a major reason for the replacement of restorations (Inokoshi et al., 1996; Yannikakis . The objectives of this study were to evaluate the color change of five commercially-available composites marketed in Syria for the restoration of teeth after..
Conclusions: Coffee caused a significant color change in all types of tested composite resins. Filtek Supreme XTE demonstrated alone a staining susceptibility to red wine; no other significant differences among the materials were demonstrated. Long-term exposure to some food dyes (coffee in particular) can significantly..
These composite resins were appealing, in that they were capable of having an extremely smooth surface when finished. These microfilled composite resins also showed a better clinical colour stability and higher resistance to wear than conventional composites, which favoured their tooth tissue-like appearance as well as..