I've been using an Ultreo for a few weeks in addition to my Sonicare Elite—"in addition to" because I have yet to discover how to get the same feeling of clean I get from my Sonicare with the Ultreo.
It could be because my mouth is too small. The Ultreo's brush head has a tiny ultrasound transducer inside which provides the cleaning action. It doesn't make! for a huge brush head, but because the Ultreo's ultrasound only works when it is vibrating bubbles from your saliva, toothpaste, and water, I suspect that at certain teeth I'm not able to get the head at just the right angle while maintaining some "mouth juice" in between it and my teeth.
It's not been for lack of trying. The Ultreo, like the Sonicare, gives chirps every thirty seconds after its been turned on, marking out two minutes for you to brush all four quadrants of your mouth. I'd usually go rinse my mouth out, run my tongue along my teeth to find any rough spots, then give it another go. In a few spots I'd hold the Ultreo directly to the tooth and wait for its ultrasonic waves to shear off my tooth scum—no dice.
The "waveguide" portion of the head, which is used to channel the ultrasonic waves into the bubbles to produces the cleaning action, tends to squeak against my teeth when brushing if I'm not too careful.
The Ultreo is sol! d in a simple but attractive package, including a charger and ! a basic mobile case, but I can't recommend it over the Sonicare Elite series brushes. If you happen to be one of those who find the Sonicare too harsh or have problems with receding gums, the Ultreo might be a better option; its brushing action is far more gentle.
One final thing: Ultreo claims that its $160 brush will whiten teeth over time. I actually did see a noticeable amount of whitening over the first week, when I used the Ultreo exclusively. That's worth something, although perhaps not $160.
Via Boingboing
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