Research has shown that Electric toothbrushes are no more effective than manual toothbrushes. However, "rotating-oscillation" electric toothbrushes (where the head of the toothbrush rotates first in one way and then the other) out-performed manual brushing removing 7% more plaque and leading to 17% less gum disease than manual toothbrushes.
All other electric toothbrushes are no better than manual toothbrushes the researchers found. These include toothbrushes that vibrate at ultrasonic frequencies such as Ultrasonic toothbrushes, the ones with heads that moves from side to side and counter oscillation toothbrushes with sets of bristles that moves one way then the other, or circular motion electric toothbrushes whose heads rotate in one direction only.
The analysis was as a result of a collaboration between the Corkrane Oral Health Group and a team of researchers lead by Dr. Chris Deery of the Edinburgh Dental Institute. More info on this at dentalcarefind.com
It is worth mentioning though that electric toothbrushes have been very helpful to people with low mobility, such as kids and the elderly.
These toothbrushes can also be an incentive to kids not interested in cleaning teeth and may find electric toothbrushes a novelty.
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