I was wondering if anyone else got this? I don't have the best teeth anyway, very soft enamel. I find though that my back tooth gets oh-so-slightly loose around that time of the month, just while I'm off of my pill. It doesn't hurt at all which you would think it would but it feels fine, totally normal, then once I take my pill again everythings fine. My friend got abcesses in almost all of her teeth when she was pregnant, just from the hormones.
I am not a doctor of course or whatever, but i do not think you have anything to worry about. Stuff like this might run in the family, see if your mother experienced it or anyother women in your imediate family. I would just stay away from hard foods during this time. The next time you visit your dr. ask whether it be your dentist or gyne.
my teeth get sore when I'm not well.. at one time I went to the dentist thinking I had a hole, and he found nothing and said it was probably flu! I don't have sore teeth when I'm menstruating but maybe it's kind of the same thing, when you're not well your weak spot hurts and your teeth are your weak spot then..?