I have used a Sonicare toothbrush for 22 years now. I have replaced it twice because the battery quit working. I always get a very good report from my hygenist and my dentist. My husband uses one too. We both can't recommend a Sonicare highly enough. Both of us drink tea and red wine and you'd never know it. I also purhased a Waterpik about 5 years ago and love it too.