Oral Health And Immune System

Oral Health And Immune System


  • Your oral health and overall heath are interrelated to each other.
  • Mouth is a gateway of entrance for bacteria and germs into your body.
  • Immune system is body’s defense mechanism to fight against infections. Maintaining good oral hygiene is very important to keep your immune system strong especially during this global pandemic of COVID-19.


  • Mouth is a home to millions of bacteria—most of these are harmless.
  • Mouth is an entry point for digestive and respiratory system.
  • When the oral hygiene is good , the bacteria are kept under control but when oral hygiene is poor, these bacteria causes diseases.
  • Poor oral hygiene causes these bacteria to multiply and they cause tooth decay and gum problems like gingivitis and periodontitis.
  • These bacteria can go to your blood stream causing other problems.
  • Also, your immune system has to focus it’s attention to your mouth to fight the bacteria causing this inflammation.
  • Keeping your mouth healthy lets the immune system focus on the rest of your body from the invading bacteria.


  1. Endocarditis— when bacteria from your mouth goes through the bloodstream and attaches to some areas of the heart.
  2. Pneumonia—when bacteria from your mouth goes into the lungs.
  3. Cardiovascular diseases— oral infections and inflammations are linked to heart diseases, stoke, and clogged arteries.
  4. Pregnancy complications— oral infections are linked to pre term low birth weight babies.

Oral health is also related to Diabetes, Rheumatoid Arthritis, Cancers, Sjogren’s Syndrome, HIV/AIDS, Osteoporosis and Alzheimer’s disease.


  • Brush your teeth at least twice a day.
  • Use fluoridated toothpaste.
  • Floss at least once a day.
  • Use non alcohol based mouthwash.
  • Eat a healthy diet.
  • Consume less sugary food and carbonated beverages.
  • Avoid smoking.
  • Schedule regular dental checkups and cleanings.