Asthma affects the lungs, but did you know it can also affect your oral health? If you have asthma, there are a few extra steps you can take to protect your teeth and gums while keeping your breathing well controlled.
How Does Asthma Affect Your Mouth?
Many people with asthma use inhalers, particularly corticosteroid inhalers, to control inflammation in their airways. While these medications are essential, they can sometimes reduce saliva and leave small amounts of medication in the mouth.
This can increase the risk of:
- Dry mouth.
- Tooth decay.
- Gum disease.
- Oral thrush (a fungal infection).
- Bad breath.
Some people with asthma also breathe through their mouth, especially while sleeping, which can make dry mouth even worse.
Protecting Your Teeth
The good news is that a few simple habits can make a big difference.
After using a corticosteroid inhaler:
- Rinse your mouth thoroughly with water and spit it out.
- If possible, brush your teeth about 30 minutes later.
- If you use a spacer with your inhaler, it can help reduce the amount of medication that remains in your mouth.
To further protect your smile:
- Brush twice a day with fluoride toothpaste.
- Clean between your teeth daily.
- Drink plenty of water to help relieve dry mouth.
- Limit sugary snacks and acidic drinks.
- Attend regular dental check-ups and professional cleans.
What Should Your Dentist Know?
Always let your dentist know if you have asthma and bring your reliever inhaler, such as your blue inhaler, to your dental appointment.
Dental treatment is generally very safe for people with asthma, but knowing your medical history allows your dental team to plan your care appropriately. If asthma symptoms develop during treatment, your dentist can stop the procedure and assist you in using your inhaler.
It’s also important to tell your dentist if your asthma is poorly controlled, you’ve recently had an asthma attack, or you’re taking medications such as oral steroids, as this may influence your dental treatment.
The Bottom Line
Having asthma doesn’t mean you’ll have dental problems, but it does mean your mouth may need a little extra care. Good oral hygiene, regular dental visits, and simple steps like rinsing after using your inhaler can greatly reduce your risk of tooth decay, dry mouth, and oral thrush.
At Dural Dental Practice, we take the time to understand your medical history so we can provide safe, personalised dental care. If you have asthma and would like advice on protecting your oral health, our friendly team is here to help you breathe easier and smile with confidence.



