The U.S. Food and Drug Administration issued a consumer safety update Thursday about a brand of electric toothbrushes that's been found to chip teeth, cut gums and generally wreak havoc with your face.
Injuries reported from use of the battery-powered Spinbrush toothbrush, sold by both Arm & Hammer and Crest (before 2009), include chipped or broken teeth, cuts to the mouth and gums, injuries to the face and eyes and choking hazards thanks to broken pieces.
. . . In addition, the FDA advises Spinbrush users to never bite down on the brush head while brushing and to follow all instructions and recommended replacement guidelines for the product.
See the link above to read about the whole advisory.