Hi, I am not sure. I might ask her again. I dont know enough about this area to comment. I know that she was in a LOT of pain and also drinking hot fluids caused it also. And the dentist could not find anything amiss either. But because the pain continued and would not stop? Even though he found no obvious reason as far as I'm aware other than mentioning something about the nerve, he did a root canal.
But again I'll ask. Her teeth are so heavily filled with amalgam, that nothing would surprise me. Some of her teeth break off.