I would think a good aloe gel from a health food store would do the same - I use it to brush my teeth(not with toothpaste, as one cancels the other out) and boy are my teeth smooth and pearly!

I use the Herbalife one, but I am sure there are others around. Aloe heals the gums and removes plaque.

Don't know about those kitty gel products...will be interesting to hear.