no words of wisdom- only commiseration. Only I don't have a new toothless baby to remember how much nicer it felt with a gummy latch.
my DD is almost 21 months old and has left 4 teeth marks on the top of my areola since she was about 16 months old.

She's weaning herself already I have to limit her nursing sessions because after about 5 minutes I'm gritting my teeth and trying to think of anything but the feeling of her teeth rubbing on my breast.
She had a horrible latch as a newborn since she was early and my breasts and nipples are pretty large. I thought we remedied that when she was 2 months old and we got my oversupply under control but I still have to compress my breast for her to latch on because she starts closing her mouth as soon as she gets near the tap. I have to break her latch about 2-3 times every few days when she gets a lazy latch.
I'm sorry you're dealing with this too and I know how I don't look forward to nursing her as much as I used to despite still loving our nursing relationship overall.