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Frequently Asked Questions About CPAP and Oral Health
Frequently Asked Questions About CPAP and Oral Health
CPAP (Continuous Positive Airway Pressure) therapy is a common treatment for obstructive sleep apnea, a condition where the airway becomes blocked during sleep, causing breathing to stop and start repeatedly. While CPAP has been proven to be effective in treating sleep apnea, many patients have questions about its impact on their oral health. In this blog post, we will address the most frequently asked questions about CPAP and oral health.
1. Can CPAP therapy cause dry mouth?
Dry mouth is a common side effect of CPAP therapy. This is because the constant flow of air from the CPAP machine can dry out the mouth and throat. Dry mouth can be uncomfortable and also increase the risk of dental problems such as tooth decay and gum disease. To combat dry mouth, it is important to stay hydrated by drinking plenty of water and using a humidifier with your CPAP machine. You can also try using a CPAP mask with a built-in humidifier.
2. Can CPAP therapy cause teeth grinding?
Teeth grinding, also known as bruxism, is a common sleep disorder that involves clenching and grinding of the teeth. While CPAP therapy itself does not cause teeth grinding, some patients may experience it as a side effect of wearing a CPAP mask. This is because the mask can put pressure on the jaw and cause muscle tension, leading to teeth grinding. If you experience teeth grinding while using a CPAP machine, speak to your doctor about adjusting your mask or using a mouthguard.
3. Can CPAP therapy cause bad breath?
Bad breath, also known as halitosis, can be a side effect of CPAP therapy. This is because the constant flow of air from the CPAP machine can dry out the mouth, leading to a decrease in saliva production. Saliva helps to wash away bacteria in the mouth, and when there is less saliva, bacteria can build up and cause bad breath. To combat bad breath, it is important to maintain good oral hygiene by brushing and flossing regularly and using mouthwash.
4. Can CPAP therapy cause changes in the mouth?
Some patients may experience changes in their mouth while using CPAP therapy. These changes can include dry mouth, teeth grinding, and irritation in the mouth and throat. If you experience any changes in your mouth, it is important to speak to your doctor. They may be able to adjust your CPAP settings or recommend a different mask to alleviate these symptoms.
5. Can CPAP therapy cause dental problems?

Frequently Asked Questions About CPAP and Oral Health
CPAP therapy itself does not cause dental problems, but it can increase the risk of dental issues if proper oral hygiene is not maintained. Dry mouth, teeth grinding, and bad breath can all contribute to an increased risk of tooth decay and gum disease. It is important to brush and floss regularly and visit your dentist for routine cleanings and check-ups to maintain good oral health while using CPAP therapy.
6. Can CPAP therapy cause damage to dental work?
Patients who have dental work such as crowns, bridges, or dentures may be concerned about whether CPAP therapy can cause damage to their dental work. While CPAP therapy itself does not cause damage to dental work, patients should ensure that their mask fits properly and does not put pressure on any dental work. If you have concerns, speak to your dentist about adjusting your mask or using a mouthguard.
7. Can CPAP therapy cause dry lips?
Some patients may experience dry lips while using CPAP therapy. This is because the constant flow of air can dry out the mouth and surrounding areas, including the lips. To combat dry lips, it is important to stay hydrated by drinking plenty of water and using a lip balm.
8. Can CPAP therapy cause changes in taste?
Some patients may experience changes in taste while using CPAP therapy. This can be due to the dry mouth that can occur as a side effect of CPAP therapy. When there is less saliva in the mouth, it can affect the taste buds and lead to changes in taste. To alleviate this, it is important to maintain good oral hygiene and stay hydrated.
9. Can CPAP therapy cause mouth sores?
Mouth sores, also known as oral ulcers, can occur while using CPAP therapy. This can be due to the constant flow of air from the CPAP machine drying out the mouth and causing irritation. To prevent mouth sores, it is important to maintain good oral hygiene and use a humidifier with your CPAP machine to reduce dryness.
10. Can CPAP therapy cause sinus problems?
Sinus problems such as nasal congestion and sinus infections can occur while using CPAP therapy. This is because the constant flow of air can irritate the nasal passages and cause inflammation. To reduce the risk of sinus problems, it is important to keep your CPAP equipment clean and replace your mask regularly.
In summary, CPAP therapy can have some impact on oral health, but these issues can be managed with proper care and maintenance. It is important to communicate any concerns with your doctor and dentist to ensure that you are receiving the best treatment for your sleep apnea while maintaining good oral health.