Charlotte, who runs this forum has pointed out that MMS is acidic, which can damage your teeth, and therefore you should not brush with it.
What I do, which works incredibly well is to make CDS, which is pH neutral. I mix 5 ml of CDS with filtered water in a 8 oz. brown glass bottle. I fill up the bottle almost all the way with water, then add 5 ml of CDS, then top off with more water. I cap it up and give it a little shake to disperse the CDS. I then store in a cupboard away from sunlight.
I then swish with about 1/2 oz. of this for about 30 sec. to a minute before I brush my teeth, and also the very last thing before I go to bed. My gums have never been better, and I have tried many, many things over a period of 30 years to help them.
Here is a video on how to make CDS:
odysee.com/@Kalcker:7/How_to_make_CDS:a
In addition, I also use an oral irrigator after my evening teeth brushing. I add 1 capful (from a 1 quart bottle) of H2O2 to the water tank, which keeps mold from building up inside the machine. Years ago before I did this I took apart my irrigator after using it for a long time, and it was covered with black mold inside the pump. So, it's important to add something, which could be CDS, H2O2, or Hypochlorous Acid.