**4.2 Powered/electric toothbrush**

Powered toothbrush are also called electric toothbrush, they make rapid automatic bristle movements, either to and fro or rotatory-oscillation to clean the teeth. Electric brushes can be classified according to their type of action as side to side vibration, Counter oscillation, Rotation or Circular. Compared to manual toothbrushes; electric-powered ionic ones were significantly efficient in removing plaque in the premolar and molar areas [26, 27]. Powered toothbrush manufacturers do not recommend a specific brushing method, the Swiss Dental Society, in 2001 developed an instruction manual for use of electric tooth brushes. Instructions for brushes with a sweeping and/or oscillating rotary motion are as follows:

