I have been brushing with baking soda for over 6 months now and my tooth is fully restored. Just to give you a full diagnostic of what I was experiencing so you may have yet another perspective on baking soda treatment for your teeth.
Hypothesis: Most bacterias that invade our mouths are generally immune to chemicals inside our toothpaste. Antibacterial agent "sodium bicarbonate" (baking soda, or "neutral sodium") destroys bacteria upon contact.
Procedural: First, Rinse your mouth with water before applying dry baking soda to your teeth. To get baking soda onto your toothbrush, avoid dipping a wet tooth brush into your baking soda container so as to maintain the freshness of the baking soda. (FYI: Baking soda is an disinfectant so it's unlikely to be contaminated.)
Observation: Cavities not only restored, teeth fully strengthened within 2 weeks after nearly 2 years of teeth feeling extremely brittle in structure. Gum was sensitive to cold and sometimes hot water. My dentist confirmed that my gums and nerves were damaged in the infected area (rear molar).
Conclusion: Pain went away after 2 days of usage. I noticed my teeth strengthened on a daily basis, and now I'm beginning to enjoy snacks and other variety of sugar - based treats. My friends and families are equally as appalled as to the overwhelming success of baking soda.
ALSO. baking soda eliminates anaerobic bacterias which is the primary 'cause of bad breath, usually hidden in molar cavities. You will also notice your bad breath gone for good. Without harmful "anaerobic/harmful" bacterias in your mouth, you are unlikely to have bad breath.
I WILL POST ANOTHER VIDEO REGARDING BAKING SODA AS AN EFFECTIVE TREATMENT FOR BAD BREATH. PLEASE CONTINUE TO GET THE WORD OUT, because no one should have to endure the agonizing pain of cavities.