Effects of Mouth Rinses on Color Stability of Resin Composites

Abstract

ObjectivesThe aim of this study was to evaluate the effects of 3 commercially available mouth rinses on the color stability of 4 different resin-based composite restorative materials.MethodsForty disc-shaped specimens (10x2 mm) were prepared from each of the following materials: A nanofill composite Filtek Supreme XT (3M/Espe, St. Paul, MN, USA); a packable low-shrinkage composite, AeliteLS Packable (BISCO, Inc, Shaumburg, IL, USA); nanoceramic composite resin Ceram-X (Dentsply, Konstanz, Germany); a microhybrid composite, and Aelite All-Purpose Body (BISCO). The specimens were then incubated in distilled water at 37°C for 24 hours. The baseline color values (L*, a*, b*) of each specimen were measured with a colorimeter according to the CIELAB color scale. After baseline color measurements, 10 randomly selected specimens from each group were immersed in 1 of the 3 mouth rinses and distilled water as control. The specimens were stored in 20 mL of each mouth rinse (Oral B Alcohol-free, Listerine Tooth Defense Anti-cavity Fluoride Rinse and Klorhex) for 12 hours. After immersion, the color values of all specimens were remeasured, and the color change value ΔE*ab was calculated. Data were analyzed using a 2-way analysis of variance at a significance level of .05.ResultsAll specimens displayed color changes after immersion, and there was a statistically significant difference among restorative materials and mouth rinses (P<.05); however, the change was not visually perceptible (ΔE*ab<3.3). The interaction between the effect of mouth rinses and type of restorative materials was not statistically significant (P>.05).ConclusionsIt may be concluded that although visually nonperceptible, all resin restorative materials tested showed a color difference after immersion in different mouth rinses.

Effect of a novel commercial potassium-oxalate containing tooth-desensitizing mouthrinse on the microhardness of resin composite restorative materials with different monomer compositions

“…Factors such as the variety of food, saliva, and their interactions may change the results (21). Future studies should consider longer periods of immersion (22). Better standardization and reporting of newly developed mouthrinses with randomised clinical trials are necessary in longer-term follow-ups.…”

“…Materials were covered with another celluloid strip, and the glass slide weighed of 200 g for 1 minute until the slide touched the mold completely, thus allowing excess composite to flow prior to curing (21) and to minimize the oxygen inhibition and maximize the surface smoothness (16). The distance between the light and the specimen was also standardized by using this 1-mm glass slide (22). …”

“…Immersed specimes were kept in a dark glass container that was maintained in an incubator at 37°C for 12 hours, which is equivalent to a cumulative time period of 1 years of 2-minute daily use of mouthrinse (21,24). Test solutions were shaken every 3 hours to provide homogeneity (22). The artificial saliva contained an electrolyte composition similar to that of human saliva and a pH of 7.0.…”

“Ormocer an innovative technology”: A replacement for conventional cements and veneer? A comparative in vitro analysis

“…[78] Ormocer has inorganic silicon dioxide foundation to which polymerized organic units are added with methacrylate substituted ZrO 2 and SiO 2 . [91011] Gold standard for assessing the clinical efficacy of any restorative material is by evaluating shear bond strength (SBS) and limited studies are reported till date with regard to restorative and flowable type of ormocer. Henceforth, this study was aimed to determine the efficiency of ormocer pertaining to adhesion and veneering.…”

Chemical and morphological features of nanofilled composite resin: Influence of finishing and polishing procedures and fluoride solutions

“…Mouthwash solutions have an effect on some properties of esthetic restorative materials such as color, hardness, and surface roughness (Celik et al,2008; Diab et al,2007; Gürdal et al,2002; Rocha et al,2010; Sadaghiani et al,2007; Yap et al,2003). These products contain different percentages of alcohol and other ingredients such as detergents, emulsifiers, organic acids, dyes, and solvents (Garcia et al,2002), which can cause degradation and surface softening of the resin matrix, promote the wear of the material and change the color of composite resin (Settembrini et al,1995).…”