Will My Aligner Cause Dry Mouth?

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Clinical Content Reviewed by Dr. Jay Khorsandi, DDS
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Table of Contents

  1. Causes of Aligner Dry Mouth
  2. How to Avoid Dry Mouth
  3. Do Aligners Cause Bad Breath?

Aligners are a potential cause of dry mouth. That’s because they are foreign objects that can irritate gums and cause swelling. Your mouth may produce less saliva as a result, causing dry mouth.

There are simple steps you can take to reduce dry mouth when using clear aligners, such as drinking more water, boosting your oral hygiene routine, and limiting caffeine intake.

What Causes Aligner Dry Mouth?

Dry mouth (also known as xerostomia) stems from a low supply of saliva. Since saliva functions to keep the mouth wet as it fights off bacteria, a lack of saliva leads to overall dryness. It also makes gum disease and tooth decay more likely because saliva acts as a natural cleanser in the mouth.

Causes of a low saliva production include aging, consumption of certain foods, some prescription medications, and habits such as smoking, sleeping with your mouth open, and wearing aligners.

While aligners are considered appliances that can improve periodontal health, they can contribute to dry mouth. Your body treats aligner trays as foreign objects, mostly because they can cause mouth irritation and gum swelling. Consequently, your salivary glands will secrete less saliva to minimize irritation, causing the mouth to dry.

Because aligner trays cover teeth for up to 22 hours a day or more, oral care specialists advise that you remain vigilant about improving your oral hygiene routine. Improved oral care can lessen the likelihood of complications like cavities, bad breath, yeast infections, and chewing and swallowing problems caused by dry mouth.

How to Avoid Aligner Dry Mouth and Bad Breath

In the event of dry mouth and bad breath, take the following steps:

Do Aligners Cause Bad Breath?

You need to wear aligners most of the day — about 22 hours — for them to effectively move your teeth. Covering your teeth with plastic for extended hours provides a conducive environment for bacteria accumulation. This accumulation could lead to bad breath if you don’t practice good oral hygiene.

The good news is you can reduce the likelihood of bad breath related to aligner wear if you simply brush and floss after every meal. Also, make sure to change your aligner trays out on the recommended schedule. Wearing them for longer than recommended increases the likelihood of bad breath.

FAQs

Disclaimer: This article is intended to promote understanding of and knowledge about general oral health topics. It is not intended to serve as dental or other professional health advice and is not intended to be used for diagnosis or treatment of any condition or symptom. You should consult a dentist or other qualified healthcare provider with any questions you may have regarding a medical condition or treatment.