What can cause pressure like pain in upper jaw you have been to dentist and teeth are not the issue?

Oddly, an upper sinus infection can do this. The inflamed sinuses can press down upon one of the same nerves that lights up when you have a sore tooth. Try this: Hop gently on the heel of the foot on the same side. If it throbs in time with your jumping, it's a sinus effect. If it doesn't -- then maybe it's still a sinus effect but also possibly something else. You might be having some sinus problems, especially if you have had hay fever or a cold lately. Visit your GP.