Color Stability of Resin Composites after Immersion in Different Drinks
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Open Access
- 1 January 2006
- journal article
- research article
- Published by Japanese Society for Dental Materials and Devices in Dental Materials Journal
- Vol. 25 (2), 371-376
- https://doi.org/10.4012/dmj.25.371
Abstract
The purpose of this study was to evaluate the discoloration of two nanohybrids, two microhybrids, and a posterior composite resin restorative material upon exposure to different drinks — namely tea, cola, coffee, red wine, and water. The colors of all specimens before and after storage in the solutions were measured by a colorimeter based on CIE Lab system, and the color differences thereby calculated. Data were analyzed by two-way analysis of variance (ANOVA) and Tukey's HSD test. According to ANOVA, the restorative material, staining agent, and their interaction were found to play a statistically significant role (P=0.0001) in color change. Among the staining agents, water consistently showed the lowest ΔE* value for all materials, whereas red wine showed the highest ΔE* value. In other words, for all the materials tested, their color change in staining agents ranked in this increasing order: water < cola < tea < coffee < red wine. In terms of comparison among the five restorative materials, Filtek P60 and Z250 were observed to manifest less color change than the nanohybrids and Quadrant LC.Keywords
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