bad breath prevention

Mouthwashes for the prevention of the plate?
Does it really work or is just a bad breath?
I think it works if you do not have the plate .. but if you .. is necessary to eliminate professional brush or whatever they are ..

Mouthwashes for the prevention of the plate?
Does it really work or is just a bad breath?
I think it works if you do not have the plate .. but if you .. is necessary to eliminate professional brush or whatever they are ..