They connect your lower jaw bone (mandible ... sharp, or radiating pain. Sinusitis (a sinus infection) is inflammation of your sinuses, which are air-filled spaces in your skull.

A sinus infection can put pressure on your sinus cavities, leading to jaw pain. You'll likely notice ... saliva and is located at the back of the lower jaw and cheek region..

In the lower jaw, the pain can manifest as ear or jaw discomfort, while in the upper jaw, it can present as sinus pain. In fact, Dr. Greg Cumberford, a dentist in Calgary, noted that the air ...