November 19, 2002: A Major University
Evidence-based conclusions:
The body intensity and extent of stain and the gingival intensity and extent of stain at 8 and 12 weeks, respectively, was significantly less in the
Hydrabrush / 30 Second Smile group compared with the Sonicare® group.
At 4, 8 and 12 weeks, the Hydrabrush / 30 Second Smile group had statistically significantly less plaque than the Sonicare® group.
At 4 weeks, the Hydrabrush / 30 Second Smile group had statistically significantly lower mean probing
depths than both the Oral-B® and Sonicare® groups. At 8 and 12 weeks, the Hydrabrush / 30 Second Smile group had statistically significantly lower
mean probing depths than the Sonicare® group. With regard to mean percentage of sites with probing depth = 4 mm, the Hydrabrush / 30 Second Smile group
had statistically significantly fewer sites = 4 mm at 4, 8 and 12 weeks.
Neither the Hydrabrush / 30 Second Smile nor the other tested brushes caused any adverse reactions that could be attributed to the brush.
Neither the Hydrabrush / 30 Second Smile nor the other tested brushes caused any increase in gingival recession.
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September 7, 2004: Medical College of Georgia
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