I'm glad you are using nano-hydroxyapatite toothpaste again, and it's great that you are experiencing beneficial effects so quickly. I had thought it was strange that you stopped because of slick teeth. It could be an effect of the nano-hydroxyapatite rebuilding your enamel. We have been using nano-hydroxyapatite toothpaste continuously for more than a year.I'm revisiting this experiment, because I pulled out the hydroxyapatite toothpaste again and started using it last Friday, so 8 days ago. I noticed the slickness again and will have to look into that. But perhaps most importantly, I drank cold water and it didn't hurt my teeth at all. Then last night I ate some dairy free ice cream (I know it's winter lol) and the first 2 or 3 bites chewing I felt nothing in my teeth, just my gums.
I don't think it is normal for your teeth to hurt when eating ice cream, though I don't think chewing it is either. Maybe try not chewing ice cream?It wasn't the hardest ice cream, but I made it a point to actually chew it. Usually I have to eat it really fast or let it melt a little. But after a few bites I then started to notice my teeth were hurting. Is it normal for your teeth to hurt when eating ice cream, at least after a couple of bites?