Hi Susan,
I was given Biotene gel toothpaste and mouthwash samples at the oncologist. Salty water was Ok, but the Biotene was great to maintain a healthy mouth. I also got a paste made by Orabase that was great to apply before bed, to protect any sore areas from the acids of the mouth. They'll tell you to clean your teeth and rinse after every meal and before sleep. It is easier to prevent mouth sores than treat them after! A cuticle cream was helpful too.
Everyone has a slightly different treatment and also different reactions. I know quiet a few TNBC ladies who are all doing really well. So keep on smiling!
Cheers