hazmat,
I too had "perfect" teeth all my life, until recently, now they are uber sensitive, i can barely eat or drink anything hot or cold, and even breathing outside in the cold hurts my teeth! I now have some chips, and not to mention my 2nd cavity ever!!!
I only had ONE my whole life... now 2 booooooo!
I asked my dentist, he said that sometimes kidney failure can mess with ur teeth, so i asked my neph he acted like me asking that was pure insanity, of course i do ask him off the wall questions alot, and he usually just rolls his eyes. SO i dont really KNOW if it is from this, but I am going to assume since i do nothing different than i have all my life in reguards to my teeth, that it is dialysis related, or at least kidney failure related