Friday evening: All Dentists closed and I had tooth pain. I did read about sodium bicarbonate (baking soda) as painkiller, did not believe it, but tried it, since I had no other choice. Just a glass of water with one teaspoon of it.
It worked in seconds! Total removal of tooth pain in one second! Immediately no longer pain! That is what I wanted. Why taking cancer-promoting normal painkillers like Aspirin or Paracetamol etc. ?
Nevertheless it has nothing to do with ordinary pain killers (with strong unwanted side-effects) - it just did neutralize something acid in the hole of my damaged tooth. The whole day no pain. However, I guess when I would have eaten something acid, I guess would have got the pain again.
So it is possibly not a cure for any tooth pain, but possibly may be.