September 2014

Water Flosser:
Fact vs Fiction?

When it comes to learning, we all have the potential regardless of age, to take in and assimilate new information. What gets in the way for many of us is how to get the old stuff out. When it comes to the Water Flosser, many of us learned information that simply is not borne out in the research. Unfortunately, some of these 'myths' persist, even in regular recommenders.

The Water Flosser is safe as long as you don't use it on high.


The Waterpik® Water Flosser is safe at any pressure setting on the device. We recommend that people start out on the lowest setting initially as they learn to use the Water Flosser and increase pressure as comfortable. The body of clinical evidence, finds the most common pressure setting is 60-70 psi - the 6 or 7 setting on the countertop and the high setting on a cordless.

The Water Flosser can drive bacteria into a pocket.


The Water Flosser has been shown to reduce periodontal bacteria up to 6 mm. The Waterpik® Water Flosser works through a combination of pulsation and pressure creating an action of compression and decompression to disrupt and reduce bacteria, biofilm, and debris safely from the pocket.

The Water Flosser doesn't remove plaque.


A study at the USC School of Dentistry Center for Biofilms evaluated the plaque biofilm removing capability of the Waterpik® Water Flosser with scanning electron microscopy. This high definition device showed that a 3 second application of the Water Flosser reduced 99.9% of plaque from the treated area. The investigators concluded that the hydraulic forces produced by pulsating water exert shear force to remove biofilm.

Can you prove it?

Yes we can!

The Waterpik® Water Flosser has been evaluated in 60 clinical trials.

A comprehensive bibliography including supporting research on the fact or fiction questions can be found in the self-study course on the Water Flosser

Abstracts to some of the latest studies can be found on the Research page of the Water Pik website.

The Waterpik® Water Flosser has been demonstrated to be an evidence-based standard of care for interdental cleaning.

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