The connection between a sinus infection and toothache usually appears in the upper teeth, especially in the rear of the mouth. Sinuses can become inflamed, causing thick mucus to form that prevents proper drainage. When this happens, pressure builds and may result in sinus infection and toothache in some people. A dentist can determine if dental problems exist before sending the patient to a doctor if treatment for sinusitis is necessary.

Sinus infection and toothache are common reasons patients visit a dentist. The dentist usually checks for an abscess, cavity, or gum disease to determine if the patient’s pain is connected to a dental defect. Those who grind their teeth during sleep might also experience tooth discomfort. If a dental exam rules out any cause for the pain, an ear, nose, and throat doctor can check for sinus infection and toothache connections.

Sinusitis typically produces symptoms that mimic a cold, flu, or allergies. A runny or clogged nose is a common sign, along with post-nasal drip and headache. When a virus attacks sinus cavities, the entire face might swell, provoking sinus infection and toothache pain. Some patients find that food tastes funny because of mucus around the taste buds, and they might lose their appetites. Others suffer from fever and fatigue.

Sinus infections and toothache pain associated with the condition are usually treated with antibiotics and decongestants. Nasal sprays can help thin out mucus clogging the nasal cavities. An expectorant might also aid in breaking up mucus so it can drain properly. Antihistamines are sometimes prescribed if the sinus infection and toothache discomfort stems from allergies.

The head contains seven sinus cavities, and any one of them can become infected. A cavity called the maxillary sinus is commonly linked to sinus infection and toothache because mucus must move upward to drain from this cavity. When the maxillary area fails to move mucus effectively, it can accumulate and become infected, leading to pain in the upper teeth. The pain may radiate to the jaw and ears.

Home remedies might help ease sinus infection and toothache symptoms. Steam can be effective to loosen mucus and allow it to drain. Breathing deeply over a pot of boiling water may help if done several times a day, using a towel over the head to prevent the steam from escaping. Increasing water intake also aids in thinning out mucus clogging nasal cavities.