Hi, I am in my 50s and dentistry was terrible when I was a kid. It much improved, but not until after my childhood dentist filled my teeth to death. Back then, you had a small cavity, and the dentist drilled a hole a small person could live in. Now, a small cavity (if any at all with all the preventative measures out there now) can be healed before it gets larger. Not so back in the 1960s. I have sensitive teeth in areas and found a brand that can help with the sensitivity & harden the acid erosion also, but all the sensitivity brands have potassium nitrate. This has maximum strength FDA-approved sensitivity ingredient (5% potassium nitrate) to help relieve and protect against tooth sensitivity. Here's my concern. I read that potassium nitrate can either make tinnitus worse or cause it if you don't have it. Tinnitus has been the longest lingering side effect of the benzos since I've been benzo free almost 15 months now. I certainly don't want to aggravate it more, so don't know if anyone else has heard about potassium nitrate causing/making worse tinnitus? I hope not.... cuz then I get to pick which do I hate worse, the tinnitus or tooth sensitivity? Thanks anyone!!