ArticleBMC research notes2026
Comparative analysis of color stability in preheated vs. non-preheated injectable composites under different curing protocols: an in-vitro study.
Article in BMC research notes, 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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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Authors and funding
6 authors.
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No grant is acknowledged in the PubMed record.
Abstract
objectiveThis in vitro study aimed to evaluate the effect of composite preheating and light-curing mode on the colour stability of a nanohybrid and a nanofilled resin-based composite after exposure to a controlled coffee-staining protocol. The data presented represents a single observation and is not a part of another research project.
resultsEighty-disc shaped specimens (10 mm × 2 mm) fabricated from G-aenial Universal Injectable and Filtek Supreme Flowable were assessed under different preheating and curing protocols, subdivided into 8 subgroups. All specimens exhibited colour changes exceeding the clinically perceptible threshold (ΔE > 2.7) after staining. Mean colour change values ranged from 12.0 to 26.5. G-aenial Universal Injectable showed significantly greater discolouration than Filtek Supreme Flowable (p < 0.001). Polywave curing resulted in higher mean ΔE values compared with monowave curing (p < 0.001). Preheated specimens demonstrated greater colour change than non-preheated specimens for both materials. The highest discolouration occurred in the G-aenial preheated polywave subgroup (ΔE = 26.5), while the lowest occurred in the Filtek preheated monowave subgroup (ΔE = 12.0). Composite formulation, preheating, and curing mode were found to significantly influence colour stability following simulated coffee exposure.
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