Why does a patient receiving oxygen therapy require frequent oral hygiene?

Patients receiving oxygen therapy often experience dryness in the mouth and respiratory tract, primarily because oxygen can reduce moisture levels in these areas. Frequent oral hygiene is important to maintain moisture, prevent discomfort, and minimize the risk of complications such as oral infections or sores. Proper oral care helps to ensure that the oral cavity remains hydrated and free from bacteria, which can be particularly important for patients who may have a decreased ability to manage their oral health due to illness or medication effects. This routine not only enhances comfort but also promotes overall health during oxygen therapy.