Do you have a sinus infection or tooth pain?

Telling the difference between a toothache or sinus infection can be tough since both are interrelated. Sinus cavities are hollow chambers where air passes through before they reach the lungs. When there’s bacteria buildup in your cavities, a sinus infection can occur. A sinus infection can appear as a toothache pain, while an abscess or dental infection can also affect the sinuses, so it is vital that you can recognize the different symptoms to be able to identify the problem is in the teeth or sinuses.

Let the dentists at Elgin Corners Dental explain.


Problems in the sinus cavities are normally due to virus infections, while bacteria or fungus can cause other cases. Sinusitis may also be because of allergies or other nasal-related problems. Sinusitis is an infection that normally goes away on its own in a short span of time. This condition is sometimes initiated by allergies or common colds. A sinusitis that’s recurring or lasts more than eight weeks is considered a chronic infection and requires medical attention.

Symptoms of sinusitis may include the following:

  • Inflamed and swelling sinuses accompanied by a headache
  • A pain that radiates the areas in the eyes, forehead, nose and sometimes in the teeth or jaws
  • Discharges from the sinus passages, which is typically greenish-yellow in colour
  • A persistent cough
  • A sore throat due to post nasal drip


If you’re experiencing more than oral-related problems and possibly a headache, a toothache may be the cause of such problem. It is advisable to have a medical professional or dentist check you to make sure what the problem is.

If you think you have sinusitis and have tried all the possible treatment methods like Apple cider vinegar, nasal sprays, antibiotics (in some cases), humidifiers, and decongestants and they are not working, it may be an oral-related problem and not sinusitis.

If this is the case, it is better to see your dentist. Your dentist will perform tests such as x-ray to determine if you have tooth decay or another problem is causing the pain in your mouth. It is even advisable to have your oral health checked to make sure that it’s nothing more.

Take note that since both the sinuses and teeth are interconnected, an infection in any of the two can trigger an infection on the other, particularly if the patient has a weak immune system.

Sinusitis can sometimes be caused due to bacteria or fungus, and if these harmful components transfer to the mouth, the risks of getting cavities and other dental problems increase, which are more expensive to treat.

Also, dealing with dental problems can transfer bacteria to other parts of the body, which will trigger other bodily infections, which includes sinusitis. In this case it’s best to visit the dentist.