I had some TMJ issues. Correction of such even with surgery is difficult to my knowledge. Your TMJ's take a beating when you have a surgery like I did, LF1, BSSO. My surgery wasn't specific for the TMJ issues I had. We didn't know if they would stay the same, worsen or improve. They worsened for a while. Bad. But it has gotten better. If I maintain the path I am on now, and gain more of the pre op opening of mouth ability, then the surgery would have been a screaming success.