Article

A single-brushing study to compare plaque removal efficacy of a new power brush to an ADA reference manual toothbrush.

Dr. Malgorzata Klukowska, Procter & Gamble Health Care Research Center, 8700 Mason-Montgomery Road, Mason, OH 45040, USA.
American journal of dentistry (Impact Factor: 1.06). 09/2012; 25 Spec No A(A):10A-13A.
Source: PubMed

ABSTRACT To determine the effectiveness of a new multi-directional power toothbrush in reducing plaque when compared to a standard manual toothbrush control in a single brushing design.
This was a randomized, replicate use, single-brushing, two-treatment, four-period, examiner-blinded crossover clinical trial at a single center. Qualified subjects entered an acclimation phase, after which they were randomly assigned to one of four treatment sequences specifying the order of use of the two test toothbrushes: a novel multi-directional power toothbrush with a 2-D drive (Oral-B Vitality TriZone) and an American Dental Association (ADA) reference soft manual brush. Subjects used each brush twice over the course of the trial. At each of the four period visits, after abstaining from oral hygiene for 24 hours, participants received a baseline (pre-brushing) Turesky Modification of the Quigley-Hein Plaque Index (TMQHPI) examination. They then brushed under supervision with the brush assigned for that period for 2 minutes (multi-directional power brush) or as customary (manual brush control). Subjects were then re-examined for TMQHPI post-brushing to determine the plaque removal efficacy of the respective brushes. A washout phase of 2-5 days separated treatment periods. TMQHPI scores were averaged on a per-subject basis, and analyzed using a mixed model analysis of covariance for a crossover design.
All 36 randomized subjects completed the study and were fully evaluable. Both the multi-directional power and manual control brushes produced statistically significant mean whole mouth TMQHPI plaque reductions compared to baseline (P < 0.001). Comparing the brushes, the power brush provided a 7.9% significantly superior mean whole mouth plaque reduction relative to the manual brush control (P= 0.003). Both toothbrushes were well-tolerated.

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    ABSTRACT: Numerous laboratory and clinical studies have proven that certain power toothbrush technologies are more effective in removal of dental plaque and reduction of gingivitis than regular manual toothbrushes. Regardless of this evidence, there is still a large group of individuals who prefer the experience of a manual-like toothbrush. Recently a novel multi-directional power brush has been developed as an alternative for those people who favor the traditional size and shape of a manual toothbrush and prefer the manual brushing technique, but would benefit from the greater cleaning efficiency of the power brush. This unique multi-directional power toothbrush with triple-zone cleaning technology has been tested in multiple clinical trials. This special issue introduces the technical features of the brush and presents four clinical investigations conducted with this power toothbrush versus manual and sonic controls. The studies described in this issue demonstrate the superior efficacy of the multi-directional brush in plaque and gingivitis reduction relative to control brushes, even in the hard-to-reach interdental spaces and marginal areas.
    American journal of dentistry 09/2012; 25 Spec No A(A):3A-9A. · 1.06 Impact Factor