Dergiler / European Journal of Research in Dentistry / 2013 / Cilt: 1 - Sayı: 1
Color Stability of Different Composite Resin Materials Bleached with Three Bleaching Agents
- Sayfa
- 9–15
- DOI
- —
Özet
The aim of this study was to compare the color stability of 3proprietary carbamide peroxide bleaching agents on compositeresins. Specimens were prepared with a polytetrafluoroethylene plate.After initial color measurements, bleaching agents were applied toeach composite resin for 2 weeks. Second color measurements weremade. Tested specimens including control group were immersed intodistilled water for a - 4 month follow-up period. Third and fourthcolor measurements were made again after 2 weeks and 4 monthsof follow-up period. Friedman (p<.01), Kruskal Wallis (p<.05) andWilcoxon Tests were used for statistically evaluation. The mostsignificant color change was seen at the Ormocer group (p<.011).The most significant color change ΔE values were obtained for theOrmocer-Voco group and color changes remained stable after 4months of immersion in distilled water. Slight color changes valueswere obtained for nanohybrid and fine particle hybrid compositeresins.
Abstract
The aim of this study was to compare the color stability of 3 proprietary carbamide peroxide bleaching agents on composite resins. Specimens were prepared with a polytetrafluoroethylene plate. After initial color measurements, bleaching agents were applied to each composite resin for 2 weeks. Second color measurements were made. Tested specimens including control group were immersed into distilled water for a - 4 month follow-up period. Third and fourth color measurements were made again after 2 weeks and 4 months of follow-up period. Friedman (p