fortunately for me, this was not the case and continuing on with the protocol proved to be a pain free solution for me. in terms of the sensitivity to the composites, it is more common then not and yet few people talk about it and they dont' tell you about it at the start of the clinic. AFterwards they will tell you they are aware of it and that it will go away.
i would say most of the 12 of us in the clinic all had the teeth sensitivity- it lasted at the max - 3 months. That would be sensitivty to cold, hot, hard things etc. Honestly, i didn't care as I was so elated to have had it done and have them out. It did go away and I would say my teeth feel great and that's a year and a half ago. ;-)