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Related Experiment Videos

Approximal brush head used on a powered toothbrush.

G A van der Weijden1, M F Timmerman, M M Danser

  • 1Department of Periodontology, ACTA, Academic Center for Dentistry Amsterdam, Amsterdam, The Netherlands. ga.vd.weijden@acta.nl

Journal of Clinical Periodontology
|March 16, 2005
PubMed
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A pointed-shaped brush head (PBH) offers a slight improvement in approximal plaque removal compared to a standard cup-shaped brush head (CBH) when used with an electric toothbrush. However, extending brushing time significantly enhances plaque reduction.

Area of Science:

  • Dental Hygiene
  • Biomedical Engineering

Background:

  • Approximal plaque accumulation is a significant factor in oral health.
  • Electric toothbrushes offer enhanced cleaning efficacy.
  • Specialized brush heads may improve targeted plaque removal.

Purpose of the Study:

  • To evaluate the efficacy of a pointed-shaped brush head (PBH) versus a standard cup-shaped brush head (CBH) for approximal plaque removal.
  • To compare the effectiveness of different brush head designs on powered toothbrushes.
  • To assess the impact of extended brushing time on plaque reduction.

Main Methods:

  • Forty participants used a powered toothbrush with both CBH and PBH over two experimental phases.
  • Plaque scores were assessed at baseline and after brushing interventions.

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  • Specific protocols involved hygienist brushing and self-brushing with distinct brush heads for timed intervals.

    • Main Results:

    • Both brush heads showed significant plaque reduction (p<0.05).
    • The PBH demonstrated a slightly higher additional plaque reduction (22%) compared to the CBH (19%) in the first experiment.
    • In the second experiment, differences between brush heads were not significant, but extended brushing time showed substantial plaque reduction.

    Conclusions:

    • While a PBH offers marginal benefits for approximal plaque removal, the primary driver of plaque reduction is increased brushing duration.
    • Advising patients to extend brushing time is more beneficial than using a secondary brush head.
    • A secondary brush head may serve as a motivator for longer brushing sessions.