Hospital Toothbrushing: A Simple Solution to Reduce Pneumonia Risk
In the world of healthcare, where patients go to heal, the last thing anyone wants is an infection. Pneumonia, an infection of the lungs, is a common and deadly complication in hospitals, affecting around 50,000 patients in Australia annually. What's more, it's often overlooked and underreported. But a new study published in The Lancet Infectious Diseases offers a surprisingly simple solution: brushing patients' teeth.
The study, conducted across three Australian hospitals, focused on a type of pneumonia called non-ventilator hospital-acquired pneumonia, which occurs in patients not on ventilators, typically outside of intensive care settings. This form of pneumonia is caused by bacteria from the mouth or throat being breathed into the lungs, and it can lead to extended hospital stays and a significantly higher risk of death.
The intervention was simple yet effective. Patients were given a toothbrush and toothpaste upon admission, and hospital staff were educated about the importance of oral care. The toothbrushes were also marked with a prompt, "Brush away pneumonia." This simple action led to a 60% reduction in the risk of acquiring pneumonia, from eight infections per month in a typical ward of 30 patients to less than four infections per month.
So, why does brushing teeth help? The mouth is home to billions of bacteria, and oral hygiene often deteriorates when people are unwell, sedated, immobile, or taking certain medications. Daily toothbrushing reduces this bacteria, a simple mechanical action with a powerful protective effect. However, in busy hospitals, oral care is often overlooked, and patients may not know its importance, while staff may be too busy with competing priorities.
One of the most important messages from this research is that patients aren't powerless. While healthcare staff play a crucial role, patients who are able to brush their own teeth can meaningfully reduce their risk. If you or a loved one is admitted to hospital, consider bringing your own toothbrush and toothpaste, brushing your teeth twice a day if possible, asking staff for help if needed, and reminding staff if oral care has been missed. These small actions can make a big difference.
This study challenges the assumption that hospital-acquired pneumonia is an unavoidable complication. It highlights the need for hospitals to monitor non-ventilator hospital-acquired infections, in the same way they monitor falls, pressure injuries, and other preventable harms. It also strengthens the case for including oral care in national infection-prevention guidelines and nursing practice.
Oral care isn't glamorous, expensive, or technologically advanced, but it works. Sometimes, the simplest interventions are the most powerful. This study is a reminder that small actions can have a big impact on health outcomes, and that patients and healthcare providers alike should prioritize oral care in the hospital setting.
