It isn't uncommon to experience some level of tooth pain as a result of an infection within the sinuses. When the nasal passages are infected with a pathogen, they react by becoming irritated and inflamed. This inflammation places pressure on one or more of the upper teeth, which can lead to facial tenderness and what's often describes as a toothache-like pain. However, this pain has nothing to do with tooth decay or cavities. It's simply a symptom of sinusitis.
Symptoms
Tooth pain caused by sinus inflammation is typically accompanied by other symptoms associated with sinusitis. You most likely experience nasal congestion, mucus drainage, cough and some sense of pain or pressure along the forehead, cheeks, nose or eyes. You may also find yourself suffering from a sore throat, bad breath, fever, nausea, fatigue and ear pain.
Development
The reason for the sinus inflammation and subsequent toothache pain is usually some sort of infection. But, this infection can be caused by a variety of different pathogens, explains the Mayo Clinic. It may be viral, bacterial or even fungal in nature. It may also spin out of allergies, adenoids, nasal polyps or a deviated septum.
Diagnosis
Confusing sinus-related tooth pain for an actual toothache is common. Your dentist can perform a regular check-up to rule out decay or cavities as the cause. Lacking any visible abnormalities, an x-ray of your teeth may be taken. The produced image shows your sinuses and any inflammation affecting them, as well. It doesn't, however, indicate the cause. At this time, your dentist can prescribe treatment or suggest a consultation with a doctor.
Treatment
Since the tooth pain is a result of sinus inflammation, treatment revolves around relieving the pressure within the nasal passages. Decongestants, pain relievers, saline sprays and nasal corticosteroids can all be of benefit in reducing inflammation, and thereby easing toothache pain. Sometimes, antibiotics or antifungal medications are prescribed to treat the sinusitis when caused by a bacteria or fungus, respectively.
Self-Care
You can also relieve sinus-related tooth pain with self-care measures. The National Institutes of Health recommends applying a hot, wet compress along the cheeks and inhaling steam heat two to four times a day. Running a humidifier and drinking plenty of fluids also are beneficial.
