?:definition
|
-
Toothbrushes designed for cleaning teeth with electrically powered bristles. These toothbrushes employ a periodic motion (e.g., back-and-forth, circular, elliptical) when manually placed on the teeth by the user. Electrical toothbrushes typically include a set of bristles arranged in a rectangular or circular array and a handle that includes the electric motor and the batteries. Electric toothbrushes are usually battery-powered devices; some may include rechargeable batteries and a stand for battery recharging.
|