Hello. I had 3 root canals 3 and a half month ago. 2 of them were fitted for a crown. I have a bridge with perfectly sound adjacent teeth. The problem is that everything is still sensitive to touch and bite. I had an xray done. There was no infection/inflammation/ cavity/ abcess..nothing I don't know why are my three upper molars all RTC still sensitive? And why can't I chew on my bridge (low molars)? Thank you