A sinus perforation should heal within two months. When a perforation does not heal, a root tip or bone fragment in your sinus might be delaying the healing process. Did your dentist x-ray your sinus? If so, your dentist should be able to see any foreign objects on the x-ray and remove them.
Will a perforated sinus heal on its own?
Sinus Precautions
Your surgeon may have discussed with you that upon extraction of the tooth in the upper jaw, a perforation into the sinus cavity occurred due to the relationship of the roots and the sinus floor. This most likely will heal on its own. Sometimes surgical correction is necessary after 3 months.
What happens if your sinus is perforated?
If there's a perforation, air will bubble up through your nose. It is more likely a sinus infection. Our sinus cavities are very close to our tooth roots and can sometimes radiate pain into your teeth. It can also cause burning and drainage.