Influence of electronic cigarette vapour on the <i>in vitro</i> chromatic stability of different nanohybrid composite resins.

The mixed ANOVA showed highly significant intersubject differences between the three materials ( p < 0.05), with a large effect size (partial η2 = 0.687), indicating that 68.7% of the variability in ∆E was attributable to the resin brand.

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