For the record, the rest of the stuff I mentioned has middling evidence for effectiveness as well, it's just the things that worked out of the myriad of things I tried that didn't. The vitamin k complex and d thing especially has limited evidence (and recently a paper came out that showed k2 increasing artery calcification, which is concerning but maybe not as bad as one thinks since the really dangerous part of arterial calcification is when it is in process. it also didn't control for vitamin d status and the hypothesis of k2 causing bone/teeth remineralization and not soft tissue mineralization usually hinges on d status being adequate).
Reminds me a lot of my struggle with migraines before the recent, good treatments came out. I was facing a certainty of at least one migraine per day everyday of my life. Led me to trying all sorts of stuff. Not exactly the best experience but better than migraines.
I just tinker as a hobby. If i live long enough even the minor annoyances in my life will eventually get iterated on and improved. The teeth thing was a medium to major annoyance so got attention first.