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"Riveting news from the world of dental hygiene: the Ultreo ultrasonic toothbrush has officially launched, promising what sounds like the ultimate brush session -- oh you know, \"ultrasound waveguide technology\" and \"precisely tuned sonic bristle action\" and stuff like that. Unlike traditional sonic units that only use audible frequencies of 20Hz to 20,000Hz, Ultreo uses a tuned sonic / ultrasonic (over 20,000Hz) combo to offer more enamel-rattling power without compromising the user's veneers, bridges, or general safety. There's a programmable replacement indicator that prompts a brush head switch-out every 3 months, and the 2-minute auto shut-off timer makes sure you don't cop out too early. For about $149.00, true tooth-o-philes can sink their chompers into this latest addition to the bourgie toothbrush market.[Thanks, Eric B]"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.engadget.com/2007/02/24/ultreo-toothbrush-uses-ultrasound-but-can-it-clean-teeth/>