COLOR STABILITY OF NANOFILLED AND SUPRANANOFILLED RESIN COMPOSITES WITH DIFFERENT POLISHING TECHNIQUES AFTER IMMERSION IN COFFEE SOLUTION
AbdAllah, Ghadeer; Mohamed Amr Kamel;
Abstract
Objective: To determine color stability of nanofilled and suprananofilled resin composites
subjected to different polishing systems after immersion in coffee solution.
Materials and Methods: Nanofilled (Filtek Z350 XT Universal) and suprananofilled (Palfique
Omnichroma) resin composites were polished after polymerization, except for control groups,
with three-step (Enamel Plus Shiny), two-step (Super-Snap X-treme) or one-step (OneGloss)
polishing systems after polymerization. The baseline color was recorded using spectrophotometer
(Vita Easyshade V), samples were stored in coffee solution for 14 days, then color change was
calculated using (CIEDE2000) and statistically analyzed using two-way ANOVA test and post hoc
pairwise comparisons.
Results: There was a significant interaction between type of composite resin and polishing
protocol on color change. For the control samples, the discoloration in nanofilled samples was
significantly higher than suprananofilled ones. For both types of composites, there was a significant
difference between samples polished by different protocols.
Conclusions: 1. Unfinished and unpolished suprananofilled composite obtains less color change
than the nanofilled composite 2. The three-step polishing provide the least color change in both
types of resin composites, yet comparable with the two-step system in the nanofilled composite 3.
Immersion of composite in coffee colorant showed apparent alterations in all tested groups.
KEYWORDS: Color stability, Nanofilled, Suprananofilled, Resin composite, Polishing,
Staining, Omnichroma
subjected to different polishing systems after immersion in coffee solution.
Materials and Methods: Nanofilled (Filtek Z350 XT Universal) and suprananofilled (Palfique
Omnichroma) resin composites were polished after polymerization, except for control groups,
with three-step (Enamel Plus Shiny), two-step (Super-Snap X-treme) or one-step (OneGloss)
polishing systems after polymerization. The baseline color was recorded using spectrophotometer
(Vita Easyshade V), samples were stored in coffee solution for 14 days, then color change was
calculated using (CIEDE2000) and statistically analyzed using two-way ANOVA test and post hoc
pairwise comparisons.
Results: There was a significant interaction between type of composite resin and polishing
protocol on color change. For the control samples, the discoloration in nanofilled samples was
significantly higher than suprananofilled ones. For both types of composites, there was a significant
difference between samples polished by different protocols.
Conclusions: 1. Unfinished and unpolished suprananofilled composite obtains less color change
than the nanofilled composite 2. The three-step polishing provide the least color change in both
types of resin composites, yet comparable with the two-step system in the nanofilled composite 3.
Immersion of composite in coffee colorant showed apparent alterations in all tested groups.
KEYWORDS: Color stability, Nanofilled, Suprananofilled, Resin composite, Polishing,
Staining, Omnichroma
Other data
Title | COLOR STABILITY OF NANOFILLED AND SUPRANANOFILLED RESIN COMPOSITES WITH DIFFERENT POLISHING TECHNIQUES AFTER IMMERSION IN COFFEE SOLUTION | Authors | AbdAllah, Ghadeer ; Mohamed Amr Kamel | Keywords | Color stability;Nanofilled;Suprananofilled;Resin composite;Polishing;Staining;Omnichroma | Issue Date | 1-Jan-2023 | Publisher | Egyptian Dental Journal | Journal | Egyptian Dental Journal | Volume | 69 | Issue | 1 | Start page | 827 | End page | 836 | DOI | 10.21608/edj.2022.175150.2350 |
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