Review (5/5): My preferred brush
I don't know if dentists prefer Oral B electric brushes, but I do. I have needed to replace previous models because rechargeable battery goes after 3 years or so. I've never bought the expensive ones. These cheaper models seem to work just fine. Pros = charge lasts a week or more, charger is petite and easily tucks into a drawer when not in use or it can be mounted to a wall. Cons = still think the brush heads themselves are expensive. Look for sales.