Efficiency of activated charcoal powder in stain removal and effect on surface roughness compared to whitening toothpaste in resin composite: In vitro study.

Saudi Dent J · 2021 · PMC8665222 · PMID 34916768

Europe PMC DOI

hedged sentence

0.0001

closest p · 0.0× alpha

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boldest claim

The sentences

highly significantp < 0.0001actually significant

Results Changes in color and surface roughness were highly significant (p < 0.0001) after brushing with activated charcoal powder and whitening toothpaste.

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