oral hygiene, the condition or practice of maintaining the tissues and structures of the mouth. Oral hygiene includes brushing the tongue and teeth to remove food particles and residue, bacteria, and plaque; massaging the gums with a toothbrush, dental floss, or water irrigator to stimulate circulation and remove foreign matter; and cleansing dentures and ensuring their proper fit to prevent irritation. Dependent or unconscious patients are assisted in maintaining a healthy oral condition. Such care includes lubricating the lips and cleaning the inside of the cheeks, the roof of the mouth, and the tongue as well as the teeth and gingiva. In addition, the health care provider checks for carious teeth, broken teeth, and loose teeth that might be swallowed or aspirated.
