@Thodsis It’s recommended, if you can.Cats, too. Keeps them from losing their teeth, like people.

@bijouxbroussard Fair enough.

I'd like to add the information that my lovely dog lived for fifteen years without a toothbrush.

She was taken for walks and she chewed sticks.

Not once did the local vet recommend anything regarding her teeth.

@smiler2012 It's true, their invisible antennas are working all the time!