Title: Suspect It's a KnockOff, Is Dangerous
Review: Like many others have found, these "replacement" brushes are dangerous. The brush assembly comes loose after a short, pinches your cheeks. On one unit the the metal piece that holds the brush to the stem protruded, didn' realize that until I saw blood. AMAZON; you should stop selling these brushes until the SELLER proves that these units are actually made by ORAL-B. I'm suspect because on another ocassion I bought a "SANDISK" memory stick (on eBay) that didn't seem to work right. I called SANDISK, and after giving them the serial number per their request, I learned that the item was not made by SANDISK! Yet, everything about the item appeard normal, including the packaging (which I compared with a store-bought unit). These brush units may likewise be knockoffs, and the SELLER might not even realize this. I call upon the SELLER and AMAZON to investigate. Don't sell these anywmore, these brushes are dangerous.
Is this product review negative?