Amazon.com
This dual toothbrush pack--which contains two Ultrasonex electric toothbrushes, two travel cases, a charger, and six brush heads--uses patented ultrasonic technology to attack plaque bacteria and leave teeth feeling smooth and clean. Operating at 18,000 orbital strokes per minute, Ultrasonex toothbrushes eliminate 97 percent of plaque in a single brushing, plus help reverse gingivitis and shrink the periodontal pockets between the gum line and teeth. Plaque grows in chains and survives by clinging to tooth enamel; Ultrasonex toothbrushes fight plaque by rupturing the chains with 1.6 MHz of ultrasonic waves. Additionally, the toothbrushes use ultrasound to prevent bacteria from adhering to tooth enamel in the first place. In addition to the optimal ultrasound/18,000 spm mode, the brushes also run at a slower stroke rate, as well as in ultrasound-only mode for sensitive teeth and gums. Each brush charges efficiently in the dual recharging base, and stores conveniently in the travel case for long trips.
--Rivers Janssen