Hi! I want to know more about it. Please tell me that how to Know If The Pain Is Coming From a Tooth or Your Sinuses. Thanks!
It is a hard diganosis to make. First, you should have all the back teeth on that side tested for vitality. This is done by a pulp tester. Then make sure good x-rays of the root tips are there. Have all the pockets measured around the teeth to make sure there are no profound gum problems. If all these appear normal, it is not the teeth.
Still possible is chronic muscle spasm radiating to the sinuses.
But many, many people have chronic sinus problems without any dental cause. Maybe an ENT can do a culture of your sinuses. The maxillary sinus is not well designed in humans and often collects liquids, leading to infections.