I just had my teeth whitened, and the sensitivity is really bad. How long is it going to last?

This is very common when you have your teeth bleached, but it may also indicate that the peroxide gel or bleaching solution used may have been too strong. As you asked this question two days ago, I would assume that the sensitivity has at least abated. Many doctors give their patients a small dosage of painkillers, generally Motrin or Ibuprofen, but sometimes sensitive patients require something stronger. If your sensitivity has not reduced to a comfortable level by now, I would call my dentist and let them know.Did the dentist who performed the procedure protect your gums at all? Most practitioners of teeth whitening place shields or protectors on their patient's gums. I'm curious since you mentioned that you had a whiteness of your gums. Also, your teeth should not burn during the procedure. This leads me to believe that the solution may have been too strong.

You have experienced an adverse reaction that does occur sometimes after Power Bleaching. The symptoms should subside in a few days. Ibupofen and desensitizing toothpaste should help. Good luck.