A comparison of the efficacy of powered and manual toothbrushes in controlling plaque and gingivitis: a clinical study.

Clin Cosmet Investig Dent · 2013 · PMC3652371 · PMID 23674927

Europe PMC DOI

hedged sentence

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closest p · 0.0× alpha

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highly significantP -value < 0.0001actually significant

Results A paired t -test revealed a highly significant reduction in the gingival, plaque, and oral hygiene index scores of the manual and powered groups at the first, second, and sixth weeks ( P -value < 0.0001).

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