I'm using sensodyne repair and protect as I have sensitive teeth, but I stopped using it for a few weeks and used Colgate,and then started using it on Friday, but my first molar tooth on my bottom is hurting. I had braces years ago and stupidly didn't use my retainer for my bottom teeth so they went funny, so I don't know if it's one of those teeth pushing against it. I'm changing dentists atm to find one closer and a nicer one, so after the weekend I'll be joining a new one. Any idea if I should stick to Colgate or keep using sensodyne?