 Much safer than mercury fillings. Oh, yeah. Okay. And so one of the things you have to appreciate is when you have all these dental problems, you have a bigger problem. Okay? It's called osteoporosis of the skull. Okay? We have osteoporosis of the skull. Instead of being a quarter of an inch thick, the skull is an inch and a half to two inches thick. It squeezes all 12 of the pairs of the cranial nerves together.