1. Remove the dentures from the mouth. 2. Run them under water and soak them in cleaner in a denture cup. 3. Rinse the persons mouth with water or mouthwash. 4. Stimulate (massage) the gums with a very soft toothbrush 5. Return the dentures to the persons mouth. Even a person with dentures should have the soft tissues of the mouth checked regularly by a dentist.