2. Tooth enamel damage caused by brushing. Pay attention to the way you brush your teeth.

3, oral pH changes, leading to enamel corrosion. Eat more vegetables that are good for your teeth.

4. There is recessive medial caries. Make the necessary repairs.

5, chronic periodontitis, root floating.

Dental care law: everything is healthy, don't talk yet.

The method of "ringing the bell" and "practicing the essence" for fixing teeth: Sun Simiao in the Tang Dynasty's "Thousands of Gold Square Yao": after getting up in the morning, close your mouth, put your tongue on the upper jaw, and then "ring the bell", that is, the front teeth, canine teeth and molars, knock and grind your teeth 36 times in turn, and at the same time "drink longevity wine by yourself" and swallow saliva three times. It can reduce the occurrence of oral diseases, especially dental diseases, and strengthen the body.

"Closed Tianmen" tooth fixation method: The Health Record says: When defecating, you should grind your teeth first, and then untie them, so the kidney qi also depends on it, which not only fixes the essence, but also fixes the teeth. That is to say, toes touch the ground when urinating, teeth are closed, and teeth are closed when defecating. Sticking to it every day can strengthen teeth, essence, kidney and body.

Gingival massage method: Touch the gums with your index finger or tongue according to Jingyue Quanshu, massage in small circles from outside to inside, and then rinse your mouth, so that the gum area to which each tooth belongs can be massaged. Repeat for 9 times.

Develop good chewing habits: chew slowly and get rid of the bad habit of unilateral chewing. It can not only promote the secretion of digestive juice, but also promote the circulation and the health of periodontal tissue.

Brush your teeth correctly: Improper brushing methods will not only fail to play a health care role, but also damage teeth and gums. After a long time, a deep groove will be "sawed" at the root. The bristles are in contact with the crown, the bristle head points to the crown, and the brush gently brushes along the tooth surface to clean each tooth surface in turn, which can not only clean the tooth surface, but also massage the gums. Brushing your teeth before going to bed is the most important thing.

Diet aftercare: the diet should be diversified and eat more coarse grains, vegetables and fruits. Eat less snacks, especially foods containing more sucrose, avoid the stimulation of teeth by foods that are too cold, too sour and too spicy, quit smoking and limit alcohol.

Five dishes for healthy teeth!

Celery is a natural toothbrush. Crude fiber can wipe off the bacteria attached to the tooth surface by mechanical friction cleaning, and the more you chew, the more you can stimulate the secretion of salivary glands. It can balance the pH value in the oral cavity, not only achieve natural antibacterial effect, but also reduce the formation of dental plaque.

2, onions can be antibacterial and bactericidal. The pungent taste of onion can not only increase people's appetite, but also contain phytoncide, which can kill and inhibit Staphylococcus aureus, Streptococcus and Salmonella. At the same time, the sulfur-containing compound in onion is also a powerful bactericidal component, which can kill Proteus causing dental caries.

3. Mustard is a powdery condiment, which is made by grinding mustard seeds. Japanese research has found that a substance in mustard can inhibit the reproduction of Streptococcus mutans.

4, mushrooms to eliminate dental plaque: mushrooms are rich in nutrients and delicious, and have been known as the "mushroom queen" since ancient times. It is also helpful to protect teeth. Lentinan contained in shiitake mushrooms can inhibit bacteria in oral cavity and prevent them from producing dental plaque.

5, green tea to remove bad breath: Green tea is known as the "treasure of longevity" because it has strong antioxidant capacity, which can prevent a variety of cancers and reduce the occurrence of cardiovascular diseases. Teeth are healthier because of drinking green tea. On the one hand, green tea contains a lot of fluorine (as do other teas), which combines with apatite in teeth and has the functions of acid resistance and tooth decay prevention. Catechols in green tea can kill Streptococcus mutans, reduce tooth decay and remove bad breath.