Asthma and oral health: the connection

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September 4th, 2024



Asthma is a chronic respiratory condition that can affect more than just your lungs. Important medications that help patients breathe easier may impact oral health.

Illustration of a mouth and lips with tongue sticking out to show dry mouth
  • Dry mouth is a side effect of many asthma medications because they decrease saliva flow. Saliva keeps food particles from collecting in your mouth and helps protect teeth from the acid to maintain a healthy pH. If the acid balance is off in your mouth, it can weaken tooth enamel and cause cavities.
Illustration of a woman covering her nose and mouth while green air swirls around her to show a bad smell.
  • Gum disease (periodontal disease) is more common for people with asthma. Symptoms include bleeding gums, foul odor, and, in severe cases, loosening of teeth. Visit the dentist often if you have gum disease.

  • There is a connection between the conditions of asthma and gastroesophageal reflux disease (GERD). The conditions often go together and can worsen one another. GERD can cause coughing, heartburn, frequent burping, and a bad taste in your mouth. If you have asthma or experience the symptoms previously mentioned, speak to your healthcare provider.

Man holds inhaler next to a diagram of a mouth with white dots on the tonsils indicating thrush
  • Thrush (oral candidiasis) is an infection in the mouth that can cause pain, difficulty eating, and white patches inside the cheeks and on the tongue. Common asthma medications like inhalers and nebulizers can cause extra fungus to grow, and inhalers can weaken the immune system, which is aggravated by dry mouth. Rinse your mouth and/or brush your teeth after using these medications.

Tips for managing or avoiding symptoms:

  1. Brush twice daily with fluoridated toothpaste.
  2. Floss daily.
  3. See your dental provider regularly.
  4. To avoid dry mouth, drink plenty of tap water, and chew sugar-free gum, mints, or hard candy.
  5. Use your inhaler properly or try a spacer to help medications get down to your lungs where they work best.

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This information in this post is for general educational purposes only and does not warrant or represent any information as related to health as specifically appropriate for you. It is not intended to be medical advice or replace the relationship that you have with your health care providers. You should always seek medical advice on any diagnosis or treatment from a qualified health care provider. The information is provided “as is” without any representations or warranties, express or implied.