Thankfully, you can do away with all of these with a hint of the best mouthwash. MyLittleAngel. Pamella . Five Stars. Spit, don’t rinse after brushing your teeth. So let’s first bust this habit that so many people have. But, when it comes to finding the best mouthwash for braces, all rinses are not created equal. I wore adult braces (not fun) and my daughter wears braces now and this is the best mouthwash available! The best mouthwash for braces becomes a necessity then. A good toothbrush or simply dental floss cannot keep bad odor away all month. Best Mouthwash For Braces. Braces are usually good at retaining proofs of the last meals we had. Reviewed on Apr 27, 2017 See full review 5 out of 5 stars Verified Purchase. Rinsing with mouthwash simply washes away all the goodness that was left behind by the toothpaste. You should not rinse your mouth with mouthwash straight after brushing your teeth. Great mouthwash for braces.