Assertion: electric toothbrush's bristle | /r/CapableOf | move brush strokes per minute
Facets:
Source sentences:
text: With bristles moving at a frequent rate of 3,000 to 7,500 (some from 30,000 to 40,000) brush strokes per minute, it's no wonder why they work more effectively to remove plaque, stains and prevent gum disease.