Tooth bleaching/whitening will not have an immediate impact on your mouth from a negative perspective. It is the soft tissues that are at risk from procedures after radiation, and the boney structures under them, not the teeth themselves. Normal fillings, root canals, etc. are not impacted by previous radiation treatments and offer no complications. But remember that if you are short on saliva, you will also be experiencing long term decalcification of your teeth after radiation. Many whiting techniques etch the surface of your teeth further removing calcium deposits. This of course makes them prone to decay. Hence all the constant use of fluoride forever after radiation. In the long run this probably isn't a great idea. Of course a dentist who is interested in selling you the procedure may not be up to speed on the issues related to your treatments. I would speak with a dental oncologist who routinely encounters these issues. They are affiliated with every major cancer institution that handles oral cancer patients. These comments of mine are based on what I know of two different issues, xerostomia and whitening individually, and I am make deductions from those two different perspectives. I do not know of anyone that has had this done, and I cannot quote any published articles, though I searched for some.

Brian, stage 4 oral cancer survivor. OCF Founder and Director. The first responsibility of a leader is to define reality. The last is to say thank you. In between, the leader is a servant.