Gum recession is irreversible and the focus should be on prevention. Keeping your mouth clean is the most effective way to slow down gum recession, and regular dental cleanings are especially important. Inflammatory gum recession is mainly characterized by red, swollen and painful gums, and bleeding when brushing teeth. Gum recession in the elderly often makes the exposed roots of the teeth abnormally sensitive to hot and cold temperature changes and acidic foods, which hinders eating and reduces the quality of life, so attention should be paid to prevention and treatment. 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 for regular oral checkups to deal with the symptoms. Tooth cleaning every 6 to 12 months is an effective measure to prevent gum inflammation. Patients who already have periodontal disease symptoms should receive systematic periodontal treatment in a timely manner. 2. Master the correct brushing method Use a toothbrush with soft bristles. Toothpaste containing fluoride is preferred, and the abrasive contained in it should be of the right thickness. At the same time, learn the correct vertical brushing method, brush your teeth gently, do not use excessive force. Brush your teeth 2-3 times a day, and one before going to bed at night is essential. Use dental floss if necessary to clean the hard-to-reach areas of the toothbrush. When it is too late or inconvenient to brush your teeth, use mouthwash instead, and on some special occasions, use soup or tea to rinse your mouth to keep your mouth clean. 3.Treat systemic diseases and pay attention to diet and nutrition Actively treat systemic diseases, such as nutritional disorders, diabetes, endocrine disorders, osteoporosis, etc., and correct bad habits such as open mouth breathing. Eat more green vegetables, fruits, soy products, milk, fish, eggs, coarse grains, foods with more fiber, and quit smoking and alcohol. 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 and avoid exposure to toxic substances. After the primary disease is cured, gum recession also improves. Strengthen physical exercise to improve the resistance of the body. 4, oral restoration Do not want to cheap and convenient, in some technical level is not high, the operation is not standardized clinic veneer, is the main reason for the production of bad restorations. Bad restorations made bad dentures are not easy to clean, bacteria breeding stimulation, but also gum recession.