Daily attention to oral care can effectively improve oral comfort and oral cleanliness, maintain a stable environment in the mouth, and reduce oral inflammation or dental gum disease caused by food residue accumulation and bacterial growth in the mouth. Especially after the diet need to pay attention to oral care, usually take care of brushing, flossing, etc., according to the patient’s state is different, the common operation process is as follows: a, awake 1, brushing: use soft-haired toothbrush, toothpaste using a pea-sized amount can be, the toothbrush bristles and the outer teeth gum root at an angle of 45 ° oblique, even force, up and down brush, so that the toothbrush bristles deep into the gaps between the teeth or gum grooves Brush two teeth as a group, about 5-6 times up and down for the next group of teeth. The inner teeth brushing method is similar to the outer teeth brushing method, the toothbrush is not convenient for teeth placed at 45°, the toothbrush bristles can be brushed directly from the root of the teeth to the teeth. People who wear dentures can remove them for cleaning, it is recommended to use warm water, and each brush can last about 3 minutes. After brushing, use the toothbrush to gently scrape the tongue, palate and the inner wall of the mouth to clean the tongue and the oral cavity as a whole; 2, use dental floss: intercept the dental floss in the fingers of both hands wrapped and taut, leaving a distance of about 2cm, put the floss close to the contact point between the two teeth, go deep into the gum sulcus, move up and down, scrape the plaque on the surface of the teeth, repeat 4-5 times, move the floss to the next gap between the teeth and eliminate one by one. After flossing, you can rinse your mouth with warm water or mouthwash to rinse out the scraped plaque and keep your mouth clean. Secondly, for those who are not awake, as the patient is in a coma and unconscious state, an opener needs to be placed to check the oral status. If the patient has dentures, they should be removed to prevent choking caused by dentures falling into the airway. Gauze balls can be used to wipe the teeth and mouth, paying attention to gentle movements to avoid damaging the patient’s teeth and mucous membranes in the mouth, and to prevent the gauze balls from falling off into the airway to avoid the risk of asphyxiation. In addition, daily attention should be paid to keep the oral cavity clean, rinse the mouth in time after eating, and reduce the consumption of spicy and stimulating, too cold and too hot food to avoid affecting oral health. If there are diseases or wounds in the oral cavity, it is recommended to go to the hospital for treatment and oral care by a doctor.