Can symptons of Eagles syndrome led to the need for a root canal. I had bilateral surgery for Eagles Syndrome in August 2012. I immediately felt the positive benefits from the surgery on my left side but only about 50% on the right side which was longer. It has been 5 months and my right ear, jaw, back molar, neck and even down into my shoulders arm and hand are often at a level 10 pain! And as if that wasn't enough, I have a bulgding cervical disc 3 and 4. The pain is worse when I lay down and when I chew or drink cold or hot beverages. My dentist did an xray of the molar in question, but the roots looked fine and the is no visible decaying of the tooth. However it is very sensitive to cold and hot and somewhat to pressure. The tooth in front of the molar in question is gone but the next two teeth are somewhat sensitive. I feel like I am loosing my mind!!!!! I thought that the Eagles Syndrome surgery would correct the pain but it has not completely, so now I am trying to see if what other issues are at play. I also have had a metallic taste in my mouth for over a year now.