For me, I went to a dentist with good reviews, he asked if I had sensitivity to cold and I said no. He said try X anyway. I tried it and it's one of those expe

For me, I went to a dentist with good reviews, he asked if I had sensitivity to cold and I said no. He said try X anyway. I tried it and it's one of those experiences like people who put on glasses that didn't know they had vision issues. I like ice cream again. There's some ways to build up enamel as long as you've not eaten away at the dentin (aka cavity). There's tooth paste and mouth wash that has small particles that get stuck in groves in your teeth and helps enamel grow. It also reduces sensitivity. My dentist recommended something for me so I'm assuming it's not one-size-fits-all.