Can a Broken File from a Root Canal Cause Sinus Problems?
I had a root canal done on tooth #3 about 3 months ago. The tip to the file broke off in the canal after it was all cleaned out. Instead of it breaking off straight in the tooth canal, it is slanted out the side, touching my sinus...at least according to the xray. I have had a sinus headache on that side since this happened and I never had headaches or sinus problems before... is it coincidence or is the file irritaing my sinus and should I have it surgically removed? who should pay for it?