Critical care nursing is the field of nursing with a focus on the utmost care of the critically ill or unstable patients. The patients oral care is a key component of nursing care. Oral care is often considered primarily an intervention for patients comfort, a characteristic that may reduce its priority and hence frequency. When patients are hospitalized for critical illness in the ICU, the oral flora is altered, accompanied by a decrease in salivary volume and an increase in dental plaque. Hospitalization also alters a patients usual oral hygiene measures, further compromising oral health....