AI Article Synopsis

  • The study evaluated the effectiveness of high-frequency, high-amplitude sonic powered toothbrushes versus manual toothbrushes in reducing plaque and gingivitis over a period of four weeks to three months through a meta-analysis of randomized controlled trials.
  • A total of 18 studies with 1,870 participants showed that sonic toothbrushes provided significantly better results in both plaque removal and gingivitis reduction compared to manual brushing methods.
  • The findings suggest that using sonic powered toothbrushes is more effective for maintaining oral hygiene in everyday use than traditional manual toothbrushes.

Article Abstract

Objectives: Evaluate the short-term clinical efficacy of high-frequency, high-amplitude sonic powered toothbrushes compared to manual toothbrushes on plaque removal and gingivitis reduction in everyday use through a meta-analysis of randomized controlled trials.

Methods: Embase, MEDLINE, BIOSIS, Inspec, PQ SciTech, Compendex, SciSearch and IADR abstracts databases were searched. Eligible were clinical trials comparing at least one manual to one sonic powered toothbrush on plaque or gingivitis reduction over four weeks to three months in subjects without disability that could affect tooth brushing. Two authors selected and extracted data from eligible studies. When insufficient information was available, researchers were contacted. Data were pooled using random-effects models to compute standardized mean differences (SMD) and 95% confidence intervals (95% CI) quantifying differences in plaque or gingivitis reduction. Risk for bias and sources of heterogeneity were assessed.

Results: The combined results of 18 studies comprising 1,870 subjects showed that sonic powered toothbrushes had statistically significantly greater plaque removal (SMD = -0.89, 95%CI = [-1.27, -0.51]) and gingivitis reduction (-0.67, [-1.01, -0.32]). Heterogeneity was large and bias was not apparent.

Conclusions: High-frequency, high-amplitude sonic powered toothbrushes decreased plaque and gingivitis significantly more effectively than manual toothbrushes in everyday use in studies lasting up to three months.

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