bad breath prevention

Mouthwash to prevent the plate?
Does it really work or just for bad breath?
I think it works if not board has already .. but if you have it .. is necessary to eliminate professional brush or whatever they do ..

Mouthwash to prevent the plate?
Does it really work or just for bad breath?
I think it works if not board has already .. but if you have it .. is necessary to eliminate professional brush or whatever they do ..