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In most developed countries, the number of powered or electric toothbrush products sold has increased dramatically in recent years. An electric toothbrush is a toothbrush usually powered by a battery to move the brush head. Most modern electric toothbrushes have a small, circular head which performs oscillating (having periodic vibrations), rotating or counter-rotational movements. Some models have timers which give useful feedback to the user on the time spent on brushing. Continue reading →