I have been using "Listerine" every night before bed since college to keep my teeth clean and breath fresh. I don't have bad breath; just use it to prevent gingivitis and cavity since brushing alone doesn't get into the those "crevices" beneath the gum line or between the teeth. Problem now is that "Listerine" makes my mouth dry after each use so I switch to a new mouth wash calls "Biotene" which helps with dry mouth. Then recently, my dentist told me not to use it if I don't have dry mouth problem. Long story short, I ran into an old engineer professor recently who told me to use baking soda to goggle instead of buying a branded mouth wash. NOW the question, any of you use such a method? Does it work?? Thanks!!