Instruct: Classify an Amazon review as either positive or negative.
Query: Very clean teeth.

I believe so highly in this toothbrush that when I couldn't find one to purchase without having to buy 2 or more regular brushes with it, I took the advice of a store clerk to check the internet. I was delighted to find the offer of 3 Oral B Triumph FlossAction Power Toothbrush Refills for a very resonable price. I made my very first internet purchase, when I ordered them and am very pleased.