It really works!
I bought three different plaque/calculus removers, not knowing which one would work best, and opened this one first because it was the least expensive with the highest rating.  The other two will be returned unopened!  The Meeteasy removed stains and plaque near the gum lime and back of my teeth in less than 15 minutes - I could feel the difference running my tongue against my teeth.  I keep it on my desk and use it when my hands are free - it's lightweight, quiet and pain free!
Rating: 5 stars