This reminds me of a conversation I once had with Lotus, who was leaning towards the fact that PM *does* change bone structure. I don’t remember the specifics, as it was drowning in Lotus’ extensive medical theory, but there never was any conclusive proof, to my memory.
I had originally asked Lotus, as I had been experiencing pain in my upper jaw/bones, where my upper teeth are. I still feel “constricting pain” from time to time, but it was pretty regular back then.