Gums are the soft tissues that support and maintain the teeth. With gum recession, the roots of the teeth are exposed, which increases the chance of wear, contamination and erosion by oral chews and bacteria, leading to tooth decay, periodontitis, apical inflammation, pulpitis and tooth loosening and loss. Inflammatory gum recession is mainly manifested as red, swollen and painful gums, and bleeding is common when brushing teeth. Gum recession in the elderly often makes the exposed tooth pole abnormally sensitive to hot and cold temperature changes and acidic food, which hinders eating and reduces the quality of life, so you should pay attention to prevention and treatment. 1, to develop good oral hygiene habits. Should use toothpaste and toothbrushes that meet the recommendations of the National Dental Defense Organization. Brush your teeth 2-3 times a day, and one before going to bed at night is essential. When it is too late or inconvenient to brush the teeth, you can rinse the mouth instead, in some special occasions, you can use soup or tea to rinse the mouth to keep the mouth clean. 2, prevention and control of inflammatory oral diseases. Periodontitis, calculus, mouth ulcers, gingivitis, gum abscesses, food embedding and unsuitable dentures are all causes of gum recession, so you should go to the hospital regularly for examination and treatment, as well as consultation on oral self-care knowledge; for gums that have shrunken, surgical treatment is also available. 3.Treat the systemic diseases that cause gum recession in the elderly. For example, endocrine disorders can lead to gum recession; anemia and lack of vitamin C make gums bleed easily; diabetic patients are prone to oral inflammation; serious diseases such as leukemia can also cause gum recession. After the cure of the primary disease, gum recession also improved. 4, strictly prevent environmental pollution. Arsenic, lead and other poisoning can lead to periodontitis, gum edema and gum recession, so you should pay attention to the quality of your work and living environment, avoid contact with toxic substances. 5, food therapy. Chinese wolfberry boiled lean meat or raw ground, cooked ground, ginger 15 grams of each boiled eggs, on the prophecy and treatment of periodontal disease effect is good, can be long-term consumption.