Why does sinus pain hurt my teeth? How to relieve sinus pressure in my teeth? The swelling, in turn, can cause the pressure to push down on the teeth below the nasal passages.
What causes sinus pressure? This is what leads to tooth pain. A sinus infection can create pressure and pain in the mouth and cause a sinus tooth pain.
Specifically, this is due to pressure and pain in the maxillary sinuses located behind the cheek bones. Sinus tooth pain is often confused with other causes of tooth pain , including gum disease , tooth decay, or an impacted wisdom tooth. Your maxillary sinuses are located inside your cheekbones, above your upper jaw. If you have an infection in your maxillary sinus , pressure starts to build and then it presses down on your jaw bones.
It makes sense that when you have a sinus toothache , it usually affects your upper back teeth. That sinus is located directly under the cheekbone and covers the area from just above the upper teeth to just below the eye socket, according to the book Head and Neck Surgery—Otolaryngology by Byron Bailey 1. The ethmoid sinuses are located deeper and closer to the nose, but can also cause pain under the cheekbone. The pressure it puts on dental nerve endings can cause a painful sensation on one or more of your teeth.
The swelling of the maxillary sinuses is typically what causes sinus toothaches , as these are located in the cheek and nose area right above your top teeth.

To alleviate the pain, first visit your dentist, who can give you an exam to determine if sinus pressure (rather than a toothache or other issue). A sinus toothache is a type of referred tooth pain caused by an inflammation of the maxillary sinus ( sinusitis ) or a sinus infection. Sinus toothache feels much like common toothache and in some cases it is difficult, even for the dentist, to understand that the toothache is related to a sinus problem than a tooth problem. The relentless pressure and swelling in your sinuses can give you symptoms of a headache. Sinus pain can also give you earaches, dental pain, and pain in your jaws and cheeks.
Sinus headaches are often at their worst in the morning because fluids have been collecting all night long. Tooth pain is a common symptom of sinusitis. It can be caused by sinus pressure and by drainage from sinus infections. The pain is usually felt in the upper rear teeth that are closest to the sinuses.
If the pain is isolated to your upper teeth , and your back molars in particular, there is a good chance you are suffering from a sinus toothache. Sinus toothaches are caused by swelling and mucus buildup in your sinuses , which puts pressure on the nerves that run to the roots of your top teeth. The maxillary sinuses, which are in the cheekbones, are directly above your upper teeth , with some of the roots of the upper teeth in contact with the sinuses. In the case of the sinuses becoming inflamed and swollen, they exert pressure on the roots of the upper teeth. Post-Operative Instructions: Sinus Care After Tooth Extraction You are being given these instructions to protect your sinuses and to help prevent complications.
There is a close relationship of the teeth to the sinus and sometimes, when a tooth is remove it will leave a communication between the mouth and the sinus. In fact, it can often be seen on a dental x-ray situated above the molar and pre-molar teeth in the upper jaw. Because of this, it allows for easy spread of infection.
An odontogenic infection is an infection that originates within a tooth.

The roots of your top back teeth lie in close proximity to the maxillary sinus. When fluid accumulates here it can put pressure on the nerves that enter the roots of these teeth. The pain associated from this pressure can make you feel like you have a toothache.
With sinus toothache, the fluid pressure in the maxillary sinuses causes the upper back teeth to ache.
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