“Electric toothbrushes clean better than manual ones.”
Randomized studies find better average plaque and gum-inflammation scores with powered brushes. The advantage varies, and evidence for fewer cavities or lost teeth is less direct.
Electric toothbrushes generally remove more plaque than manual brushes in trials. A manual brush can still clean teeth well, so buying an electric one is optional rather than a health requirement. Thorough, regular brushing matters with either type.
Much of the evidence concerns oscillating-rotating brushes. Results do not establish that every powered model outperforms every manual brush or that the most expensive model is best.
Who might find an electric brush easier to use?
Some people find powered brushing easier to perform thoroughly. That practical advantage can matter when choosing a brush you will use consistently.
Safety note: Avoid forceful scrubbing with either brush. Ask for technique advice if brushing causes pain.
Talk to a healthcare professional if: A dentist or hygienist can check whether you are cleaning all surfaces effectively.
A useful average advantage does not make a manual brush inadequate.
Choose an affordable brush you can use thoroughly twice daily.