If there's no sign of a cavity, but tooth pain persists, there are other possible reasons that should be explored. A sinus infection, for example, is a less common but significant cause of tooth pain. If only your upper teeth on both sides of your face are in pain, sinusitis could be the culprit. Since the top teeth are right below the sinuses, pressure from an infection or inflammation in these areas can radiate pain in the mouth, causing a toothache. This sort of toothache is usually accompanied or preceded by nasal congestion and tenderness around your sinuses. If you suspect this is the cause of your tooth pain, you may wish to see your medical professional for discussing prevention and treatment.
Suppose you feel pain more in your jaw rather than just in a specific tooth. In that case, temporomandibular disorders could be the cause. You could have this disorder because of direct injury or trauma to your jaw, tooth grinding (bruxism), or arthritis
If you still have your wisdom teeth, impacted molars could also be causing you jaw pain. Your molars become impacted when there's no room in the back of your mouth for them to emerge out of your gums properly.