Hi, You and I have somewhat the same problem. I had the femur flap and it failed, so they had to put in a titanium bar to replace my jaw bone. I had a infection on that it it caused pain and headaches, I blamed the infection. In April the put a new bar in and I am infection free. I still have face pain in jaw and up both sides of face. I have found it worse at night after I have talked a lot or eaten foods harder to eat. I asked my Doctor if this was something I will have to live with for the rest of my life. He said NO, it takes a long time for something like this to heal, Nerve endings are knitting, etc. He gave me more Tylenol with Codine to take to sleep if it gets really got bad. If you think about it removing a tumor and bone and tissue from this area would create quite a trama to the face.I just hope is does get better with time. I have not had radiation so I cannot answer that, but i have it without radiation so that should tell you something.