TIL that electric toothbrushes are 10–20% more effective than manual toothbrushes at removing dental plaque
TIL that electric toothbrushes are 10–20% more effective than manual toothbrushes at removing dental plaque
Powered/electric toothbrushes compared to manual toothbrushes for maintaining oral health
Edit: Since it's come up a couple times in the comment, I'll add that there's evidence use of a water flosser is more effective than dental floss.