As you must be knwoing by now, an electric toothbrush uses electric power to move the brush head, normally in an oscillating pattern. It is a great choice for elderly people, or people with pains or other diseases. An electronic toothbrush is one which has various features:

Electric toothbrush timers - Brushing duration timers and Quadrant timers.

Electric toothbrush power settings - Some electric toothbrush designs allow for an option that sets the power of the brushing action of the brush to either a "high" or "low" level. In most cases the effectiveness of the brush will be greatest when it is set to its higher setting.