Power Brushes: Why they don’t remove much plaque.

In a previous article we quoted a dentist who recommended that people “start using a toothbrush that will remove more plaque than can be removed by friction alone”.

Now research has shown that indeed toothbrushes that are designed to remove plaque mechanically (using friction) are basically no better than each other. It doesn’t matter if your hand is doing the moving or if an electric motor is moving the bristles of a power brush. They still leave a lot of plaque on the teeth.

In this landmark study to see whether powered toothbrushes were any better than manual toothbrushes in removing plaque and improving the health of gums, the researchers concluded that most types of power brushes gave similar results to inexpensive manual toothbrushes. Almost all the big name (and expensive) power brushes were involved in the study – Interplak, Ultrasonex, Sonicare, Epident, Braun Oral B, etc. The power bushes ineffectiveness compared with manual brushes wasn’t the only surprise. The one power brush that did show an improvement only managed a surprisingly modest reduction in plaque (7–11%) compared to manual tooth brushing!

This study made headlines in newspapers everywhere. It showed that a lot of the hype about electric toothbrushes is not based on scientific fact. The fact is that plaque attaches to the teeth through an electrostatic bond and friction alone (mechanical action) just cannot break this bond.

Our Ionic toothbrush does break this bond. Why?

The reason is simple.

1. Plaque and teeth have opposite charges (This is why plaque gets attached to the teeth – dentists actually learn this in dental school.)

2. When you brush, the IONIC toothbrush reverses the polarity and makes the teeth let go of plaque, like turning off a magnet!

The revolutionary IONIC brush has been clinically proven to remove up to 48% more plaque than a manual toothbrush. This is significantly more than the Cochrane Study shows for the best power brush!

If you’re brushing your teeth, it makes sense to use a brush that removes the most plaque. So why not try the Ionic toothbrush and get the benefit of patented Ionic technology, not found in ordinary manual or power brushes.

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For reference we have included a summary of the Abstract from the Cochrane report.

Manual versus powered tooth brushing for oral health.

Cochrane Oral Health Group, University Dental Hospital of Manchester, Manchester, United Kingdom

Abstract

BACKGROUND

Specific oral bacteria, generically known as “dental plaque” are the primary cause of gingivitis (gum disease) and caries. The removal of dental plaque is thought to play a key role in the maintenance of oral health. There is conflicting evidence for the relative merits of manual and powered toothbrushes in achieving this.

OBJECTIVES

To compare manual and powered toothbrushes in relation to the removal of plaque, the health of gingivae, staining and calculus, dependability, adverse effects and cost.MAIN RESULTS

Twenty–nine trials, involving 2547 participants, provided data for the meta–analysis.

Brushes that worked with a rotation oscillation action removed more plaque and reduced gingivitis more effectively than manual toothbrushes in the short and long term.

...Over 3 months these (results) represented an 11% reduction on the Quigley Hein plaque index and a 6% reduction on the Loe and Silness gingival index.

...At over three months these (results) represented a 7% reduction on the Quigley Hein plaque index.

No other powered brush designs were consistently superior to manual toothbrushes.

REVIEWERS’ CONCLUSIONS

Powered toothbrushes with a rotation oscillation action achieve a modest reduction in plaque and gingivitis compared to manual tooth brushing.

No other powered brush designs were consistently superior to manual toothbrushes.