I'm not a dental specialist... Just a dental monitor...
I have sensitive teeth too. When I got a root canal done, my dentist told me to start using a Water Pik with 20% water/hydrogen peroxide solution in it at least 4 nights a week... It worked very well with no adverse side effects. My cold sensitivity went away in about a month. I couldn't even drink ice water or have an ice cream...
My Hygienist wanted me to use Listerine instead of H2O2, and it tasted awful, and didn't work. I went back to the H2O2. Problem gone.
Wal Mart has the water Piks for about $40 or $50, and the H2O2 is in the medical area bottom row about the 3rd aisle in at WM.....
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