The document discusses reducing the risk of ventilator-associated pneumonia (VAP) through oral care of intubated patients. It reviews several studies that found providing oral care like tooth brushing twice daily and use of antimicrobial mouthwash can reduce the risk of VAP by over 50%. Specifically, tooth brushing with purified water alone reduced VAP rates by 54% in one study. Another study found chlorhexidine mouthwash reduced the relative risk of VAP by 67%. The author concludes that oral care interventions are important for preventing VAP based on the evidence from these studies.