Swordmaker,
Is it necessary to use other mouth rinse (for example Listerine) once you are on a regimen with the bleach/water blend? I imagine the bleach blend kills everything Listerine would? Or would you still recommend using a mouthwash and what brand and type? (Some use alcohol, some alcohol free, some use artificial sweeteners, others not).
Listerine ® in its own advertising claims to kill only 99% of the bacteria in your mouth. It says that because Listerine has about a 10 second kill time on bacteria. But the spirochetes we need to target turn into a "spore form" by rolling into a protective ball in just ABOUT FIVE seconds which can survive Listerine, peroxide, alcohol, or other antibiotic environment. After conditions become safe for them they merely unroll and go about their spirochete business.
The kill time of baking soda is about FIVE seconds so a few of the spirochetes are going to be missed as they have just enough time to make it into their protective spoor form before dying. That's why the protocol calls for the once or twice a week use of the bleach.
The kill time of the Dakin's Solution Bleach is TWO seconds, far faster than the five seconds it takes for even the fastest spirochete to form a spore form. So, no, you will not have to use anything after using the Dakin's Solution diluted bleach. It kills far more than anything else you can use. Listerine is far less effective than the bleach but is more tasty. Once you've used the bleach, there should be no bacteria of any kind still alive in your mouth.