In extreme pain following Septoplasty surgery on Saturday- what's going on?

On Saturday I had Septoplasty and sinuplasty. Since Sunday I have been in excruciating pain that radiates from my front upper right teeth up to my septum. On Sunday was given a Tramadol injection and have been prescribed high dose Tramadol to take home but it only lasts for one hour before the excrutiating pain is back. My surgeon said he thinks it's tooth related but I went to a dentist & had xrays and they can't see anything wrong. Please help - does anyone know what might be going on?