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Common Causes of Mouth Breathing

Mouth breathing might not seem like a big problem. However, it can dry out the gums and tissues in your mouth, leading to a change in oral bacteria. This can result in tooth decay and gum disease.

Therefore, if you breathe through your mouth, you should find the culprit and fix the issue. But what are the common causes of mouth breathing? We're going to discuss them in detail below!

Enlarged Tonsils

In some cases, it's enlarged tonsils that make it difficult to breathe through the nose. As a result, affected individuals are forced to breathe through their mouths instead.

There are two available treatments for this. One is to reduce the swelling in the tonsils by using a humidifier or drinking warm water or by keeping yelling to a minimum. The other is to have the tonsils removed entirely.

You're advised to see a dentist to determine the correct course of action. They'll assess the problem and help make the right determination.


Another cause of mouth breathing is sinusitis. This is a condition wherein the sinuses become inflamed. Inflamed sinuses become narrowed and therefore restrict breathing through the nose.

In many cases, this will go away with time. It often accompanies colds and allergies. However, you'll have to use steroids or undergo surgery if you suffer from chronic sinusitis. Surgery, in particular, can help eliminate chronic sinusitis forever.

Deviated Septum

A deviated septum can lead to mouth breathing as well. This is when the septum within the nose is off-center.

This can lead to mouth breathing and sleep apnea, high blood pressure, and maybe even heart attack. In other words, it's not a condition to take lightly. If you feel you may have a deviated septum, you should consult your doctor.


Allergies can also cause mouth breathing, especially when those allergies result in nasal blockage. This stands to reason, as mucus essentially blocks the passage of air.

There are allergy medications available to help treat this problem. If you're not taking these medications, you might be perpetually dealing with this problem.

Enlarged Adenoids

Adenoids are masses of lymphatic tissue that reside between the nose and the throat. They form as a result of a buildup of bacteria, usually as a result of an infection.

When enlarged adenoids are present, they essentially serve as blockages, resulting in a range of mouth-breathing symptoms. If you're dealing with enlarged adenoids, you should consult your dental professional.

Dealing With Mouth Breathing?

Are you dealing with mouth breathing? Looking for help? If so, and if you're in the Southeast Calgary area, we here at Forest Lawn Dental have you covered.

Our team has treated countless patients who experience mouth breathing, helping them to breathe properly and aiding their teeth and gums in the process.

Contact us today to schedule an appointment!


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