Thanks again, Tom for your insights - that would explain why the CloSys toothpaste that my dentist uses in his pratice does not bleach. He also uses their mouthwash. Another brand is DioxiBrite. I used the Closys but his has saccharine in it, which I didn't like.
With a toothpaste that has sodiumchlorite in it, one may not need to use the Miracle-Mineral-Supplement for an oral rinse. However, I use the activted form also in my WaterPik - and it destroyed two of them - so I will try the unactivated Miracle-Mineral-Supplement solution, that will also keep my WaterPik alive. I like to use the WaterPik after flossing, to remove any loose food stuff.
I would highly recommend to rinse with the (unactivated) sodiumchlorite solution right after dental cleaning at the dentist. The plaque that has been removed are biofilms that host bacteria, and right after cleaning, the mouth is full of it. My dentist would give me homeopathic injections (I think Pleo-NOT and Pleo-X) into the gums for dental root health and before I started to rinse right after the cleaning, my glands would swell up, probably due to bacteria that were drawn into the gums by the injection needle!