For sure, I don't think it would replace as much as supplement. And obviously your mouth flora can change based on any number of factors, so it might have to be

For sure, I don't think it would replace as much as supplement. And obviously your mouth flora can change based on any number of factors, so it might have to be something like a special toothpaste since it likely wouldn't be a one-time treatment. Plus, I would imagine it would be a hell of a lot cheaper than nanobots once the bacteria strains are developed and tested.