I brush while wearing my pyjamas, I don't really care if they get slobber/foam stains.
It'd be great if a mouthwash that negates the need to brush could be invented, but it seems unlikely. Anything strong enough to dissolve the crud off your teeth would also probably dissolve the flesh inside your mouth at the same time.
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The Party told you to reject the evidence of your eyes and ears. It was their final, most essential command.
If you're not careful, the newspapers will have you hating the people who are being oppressed, and loving the people who are doing the oppressing. —Malcolm X
Just a reminder: under international law, an occupying power has no right of self-defense, and those who are occupied have the right and duty to liberate themselves by any means possible.