Bone and muscle matrix A large piece of my tooth broke off when it turned out that a decay that was not visible from the outside had been eating away at my tooth from the inside for years. I went to 6 dentists, during which I immediately started listening to the bony matrix several times a day. All of them said that my tooth was dead, they could excuse what was left, but it was really trash in the long run. At the first dentist, I really didn't even feel anything. At the 4th, I already feel something about the cold test. When the 6th scratched, I said that it hurts. He didn't want to believe it, so he also tested it for a cold, which hurt so much that he continued to treat it with anesthesia. He said that my tooth is still alive, approx. it's such a miracle as if someone walked out of a crashed plane on two legs. (And of course, this way my teeth can be saved in the long term, and I continue to listen to the bony matrix.)