Mouth care and your lungs

Why the mouth matters

Your mouth is full of germs. Most are harmless where they are.

If spit or food goes into the airway, those germs can go too. That is one way chest infections start.

What the research says

A 2013 review looked at frail older people, mostly in care homes. Better mouth care seemed to lower the chance of pneumonia.

The studies were few and mixed. Mouth care is one helpful step, not a promise.

What you might notice

• A dry, sticky or coated mouth.
• Bad breath, sore gums, or bleeding when brushing.
• Food left in the cheeks after meals.
• Dentures that feel loose or rub.
• Brushing has become hard, for you or the person you help.

What can help

• Brush teeth and gums twice a day with a soft brush and fluoride toothpaste.
• Clean dentures every day. Ask a dentist whether to take them out at night.
• Check the mouth for leftover food after meals.
• Sip water through the day, if fluids are not limited for you.
• If brushing is hard, a dentist or hygienist can show a caregiver how to help.
• Keep up dental visits, even with dentures.

Questions to ask your care team

• What mouth care fits me, if swallowing toothpaste or rinse is hard?
• Could any of my medicines cause a dry mouth? What are my options?
• Do my dentures fit well?
• How often is a dental visit worth it for me?

When to get help

Get checked soon if you notice any of these. A doctor or SLP can look at what is going on.

• Coughing or choking when you eat or drink.
• Food or pills that feel stuck.
• Losing weight without trying.
• Pneumonia or chest infections, especially if they come back.