Colour Stability of a Novel Alkasite-Based Composite Resin Restorative Material in Comparison with Giomer-Based, Microhybrid, Nanohybrid Composite Resin Restorative Materials

April 27, 2026Selcuk Dental JournalOpen Access

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Key Points

The aim was to assess the colour stability of a novel alkasite-based composite resin compared to giomer, microhybrid, and nanohybrid materials.
Samples of four composite resin types were prepared and shaped like discs.
Each sample was immersed in distilled water, red wine, or coffee at three time intervals: 24 hours, 1 week, and 1 month.
Colour changes were measured using CIE LAB values from spectrophotometry and analyzed using MANOVA at p < 0.05.
All materials displayed discolouration over time.
Alkasite-based and giomer-based materials showed greater colour change compared to microhybrid and nanohybrid materials (p < 0.05).

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Study evaluated colour stability in alkasite and other composite resins, suggesting varying discolouration levels.

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Erdem et al. (2026) studied this question.

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