Protection is the key to keep your teeth. We can start from the following aspects: keep your mouth clean: the elderly should insist on brushing their teeth with warm water every morning and evening, and brushing their teeth before going to bed is more important than brushing their teeth in the morning. In addition, rinse your mouth with clear water after three meals a day, and try to use the impulse of water to remove the food residue entrained between your teeth. If it is tightly embedded, you can also take it out with a toothpick. Go to the hospital regularly to remove the stones on the surface of teeth and prevent periodontitis. Percussion and swallowing: wake up and fall asleep every morning and stick to the frequency and intensity of percussion between the upper and lower teeth, reaching about 50 times each time. This method can enhance the toughness of periodontal tissue fiber structure, promote blood circulation of gums and face, and keep teeth strong. Swallowing saliva after chewing teeth is also unhealthy. Bite hard: bite hard with your teeth every time you urinate, and do it continuously every time you drown. This can promote the metabolism of oral mucosa and blood circulation of gums, exercise masticatory muscles and enhance the function of teeth. Mouth drum gargle: do mouth drum gargle once or twice a day, and turn your tongue left and right, which will make saliva much clearer, rinse and stimulate the tooth surface, teeth and oral mucosa to a certain extent, which can make the mouth self-clean and protect the health of teeth. Massage gums: Massage gums with clean thumb and forefinger in a certain direction for 10 minute each time, which can promote blood circulation of gums, alveoli and dental pulp and prevent premature atrophy of gums. Chew correctly: The correct way to chew is to use two teeth alternately. If one-sided teeth are often used for chewing, the unused side will be short of physiological stimulation, which will easily lead to disuse atrophy of tissues, while the frequently chewed side will be overloaded, which will easily lead to pulpitis and facial disfigurement, which will affect the appearance. Rinse your mouth with tea: rinse your mouth with tea after each meal, and let the tea brush your teeth and both sides of your tongue in your mouth. This can remove tartar, improve the physiological function of oral orbicularis muscle and oral mucosa, and enhance the acid resistance and corrosion resistance of teeth. Diet and tooth protection: eggs, fruits, vegetables, sparerib soup, etc. , rich in protein, minerals, vitamins, etc. Regular consumption is good for strong teeth. Due to insufficient intake of protein, people are prone to dental caries. In addition, attention should be paid to protecting teeth when eating, such as: avoiding eating too much hot and sour food to prevent tooth glaze from being eroded and damaged; Avoid eating cold and overheated food to prevent teeth from being damaged by stimulation. Regular tooth washing: tartar and tartar are very common in people's mouth, especially in middle-aged and elderly people. Dental calculus consists of food crumbs, microorganisms, etc. And then mineralized to form dental calculus attached to teeth. They stimulate and oppress gums, damage gingival tissues, hinder local nutrition metabolism, reduce resistance, and are conducive to the growth and reproduction of bacteria, causing chronic inflammation. Therefore, patients should go to the hospital to clean their teeth to prevent the damage of tartar and tartar to gingival tissue. Regular check-up: Go to the hospital for oral examination once every six months. If you find dental diseases, you should treat them in time.