It's totally different from ordinary toothbrush. Once you use it and sleep, you can know how wonderful it is next morning. Clear like blue sky. Fresh like southern ocean. You don't feel any uncomfortable mood when you try to kiss with somebody. I can't use any other brush any more! I've been using this toothbrush since October 2006.
I bought two for my parents today as the present of Respect-for-Senior-Citizens Day. Thanks a lot, Mum and Dad.