Baking soda neutralizes an acidic oral environment by making the mouth and saliva lean on to the alkalinic side. This is good news in preventing tooth decay and gum problems. However, do be mindful of different reports on this. Some people say baking soda has contributed well into the healing of their gingival abscesses but others claim having issues with baking soda with regards to their gums.
Baking soda, as Ramiel has written in his book "Cure Tooth Decay," can be a good way to whiten teeth naturally. However, be aware though that baking soda has its abrasive properties too. As far as I can remember, Ramiel also use baking soda formulas and herbal formulas.
A little more about the book: Forget about drilling, filling, and the inevitable billing. Your teeth can heal naturally because they were never designed to decay in the first place! They were designed to remain strong and healthy for your entire life. But the false promises of conventional dentistry have led us down the wrong path, leading to invasive surgical treatments that include fillings, crowns, root canals and dental implants.
I also read in many places that baking soda might be too abrasive and you should not use it every day. How would I know that it is not good for me though? Am I going to feel pain, sensitivity, bleeding gums or just one day I wake up and I see that all my enamel is gone!