[Preventive approach of oral care for comfort and hydration].

The risk of deterioration of oral health is increased in the palliative phase of a disease due to the drying out of the oral mucosa by the treatments. Weakened, the patient drinks and eats little, or not at all. Caregivers therefore need to take over the patient's oral care to ensure hygiene and comfort. As a preventive approach, providing mouth care for hydratation and comfort associated with oral hygiene are essentials.