ArticleBiomaterial investigations in dentistry2026
Food dye staining of dental composites: material variability and mouthwash-induced staining reversibility.
Article in Biomaterial investigations in dentistry, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
Objective: Food dyes, widely used in consumables, may interact with polymeric materials, yet their staining effects on resin based dental composites remain underexplored. This Methods: Five synthetic dyes - Tartrazine, Sunset Yellow, Ponceau 4R, Carmoisine, and Brilliant Blue - were tested on six resin composites: Charisma Smart, Estelite ∑ Quick, Filtek One Bulkfill, RubyFlow, Spectra SphereTEC High Viscosity (STHV), and Filtek Ultimate. Sixty disk-shaped samples (7 mm × 2 mm) per composite ( Results: Brilliant Blue exhibited the highest staining potential, producing ΔE₀₀ values exceeding the clinically unacceptable threshold (1.8) in all composites except Spectra STHV, and was also associated with the greatest changes in WI Conclusion: The colour stability and whiteness of dental resin composites are affected by synthetic food dyes in a material- and dye-dependent manner. Whitening mouthwash can partially restore both colour difference and whiteness; however, complete recovery to baseline values is generally not achieved.
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