Warning issued from the Food and Drug Administration states that certain electric toothbrushes may not be safe for use.  According to the FDA, the following models of the Spinbrush have the potential to cause injury:  Spinbrush SONIC, Spinbrush SONIC Recharge, Spinbrush Swirl, Spinbrush ProClean, Spinbrush ProClean Recharge, Spinbrush Pro Whitening, Spinbrush Classic Clean, Spinbrush For Kids and Spinbrush Replacement Heads

It is important to note that electric toothbrushes can be very effective in removing dental plaque and help to prevent tooth decay and gum disease.  However children should be supervise when using these types of toothbrushes.