People, Dentist here. Nothing wrong with using a tongue scraper everyday. Brushing tongue works too. Remember, gotta get plaque levels down. Soda creates an acidic environment for more bacteria. There is such thing as normal bacteria such as gram + but you don't want gram neg bacteria around. S. Mutans, P. gingivalis, I can go on and on... If you have any problems with bad breath, go see your dentist. There are situations where it's not caused by the tongue. Also, you can have the top of the line electric toothbrush and still have plaque. It's how diligent you are in the process. When you see Brooke shield's in the commercial, that's not the way you are supposed to brush! I cringe when I see that commercial.