Brushing your teeth in hospital could prevent catching a bad infection

image via New Scientist

April 19, 2026, 11:01 PM

• •Hospitalized patients who brushed their teeth were 60% less likely to develop hospital-acquired pneumonia.
• •The study involved nearly 9,000 patients in three Australian hospitals.
• •Patients were provided with toothbrushes, toothpaste, and dental care advice.
• •The intervention led to a significant drop in pneumonia incidence.
• •Oral care training was provided for ward nurses.

A large study found that patients who brushed their teeth in the hospital were significantly less likely to develop pneumonia. Many hospitalized patients don't brush their teeth regularly, and medical staff often don't prioritize oral hygiene. Researchers provided patients with toothbrushes and dental care advice, resulting in a dramatic reduction in pneumonia cases. This simple intervention highlights the importance of oral care in preventing hospital-acquired infections and improving patient outcomes.

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