1. Brush your teeth: this is the most common method. People are brushing their teeth, but not many of them brush well and carefully. The so-called good brushing is to brush all surfaces of each tooth clean. Brush at least once a day, morning and evening. The correct method of brushing is to brush the upper teeth from the upper downward rotation, the lower teeth from the lower upward rotation, the upper and lower front teeth should be brushed inside the gap, chewing teeth should be brushed back and forth. In order to brush the surface of the teeth cleaner, you must use a small brush head, soft and flexible bristles of the health care toothbrush. To prevent caries and periodontal disease, it is best to use toothpaste containing sodium fluoride or chlorhexidine. Containing sodium fluoride or strontium chloride toothpaste also has the effect of lifting tooth allergies. 2, pick teeth: some food embedded into the plaque is difficult to remove by brushing, it is best to use a dental probe to gently pick out the embedded food, clean plaque. Some people are accustomed to using toothpicks, but be sure not to exert too much force, so as not to stab the gums or even cause alveolar bone resorption. 3, gargle: pay attention to gargle, after meals or picking teeth with warm water gargle can be residual food residue in the mouth rinse off. China’s ancient advocate of gargling with tea, is a good way, because tea contains fluorine, can prevent caries, also contains tannin, to prevent gingivitis is also beneficial. Add a little salt in the mouthwash, generally with a slightly salty flavor is appropriate, to prevent inflammation of the gums also has a certain effect. Mouthwash with certain drugs, such as 0.2% chlorhexidine or 0.2% sodium fluoride solution, there is a better anti-caries effect. Chlorhexidine solution on the elimination of plaque on the surface of the teeth is also beneficial. 4, knocking: can enhance the health of dental support organizations, like exercise, can also stimulate the secretion of saliva, cleaning the surface of the teeth, knocking method is simple, everyone can do. Its method is: closed lips, upper and lower teeth up and down the direction of the bite knocking movement, each knocking more than a hundred, every morning with brushing, make a habit. 5, gum massage: can promote blood circulation of periodontal tissues, so that the metabolism of dental support organizations to enhance the corresponding enhancement of the teeth’s ability to resist disease. Gum massage can be carried out in the mouth, can also be carried out outside the mouth. When carried out in the oral cavity, it is best to do in the morning and evening after brushing teeth. Wash your hands, stretch the index finger into the mouth, press the lips and cheeks of the teeth and tongue on the gums, and then rotate from front to back for kneading. Later, rotate from back to front again, so back and forth 20 times, and later make the other side, and then make the tongue side. Outside the mouth, the lips will be closed, with the right hand or fingers of both hands pressed on the upper and lower lips, cheeks for kneading action, but pay attention to the power to reach the upper and lower gums, divided into the upper and lower and before, in, after the six parts, each part of the more than 20 times. 6, chewing exercise: chewing exercise is to fully practice chewing muscles. To eat more hard and rough, fiber-containing components of food (such as beans, celery, etc.), eat to fully chew, do not swallow. This can exercise the chewing muscles, exercise jawbone and alveolar bone, strong dental support tissue health. Full chewing can also stimulate the secretion of saliva, have a good oral self-cleaning effect. Chewing food should also pay attention to overcome the bad habit of unilateral chewing. People with this bad habit, often one side of the jaw puffed up and hypertrophy, and affect the aesthetic. Chewing one side of the teeth is very clean, periodontal tissues are also very healthy, while the other side of the teeth are piled up a lot of dental tartar, roots and even periodontal tissues are also inflamed. 7, early treatment and early prevention: there are three reasons for caries, one is the food contains high composition of sucrose, sucrose is very harmful to teeth. Second, bacteria, it and food debris bonded to the surface of the teeth, so that sucrose fermentation acid production, thus destroying the calcium and phosphorus within the tooth tissue. Third, the structure of the tooth itself and the occurrence of dental caries is related, such as deep sockets, embedded teeth are not aligned, overlap each other, so that the food debris is easy to stagnate, plugs, and even suffering from dental caries. Patient caries is not treated in time, the hole is deep, it will invade the tooth nerve, causing pulpitis. Some even spread to the tissues around the tooth root. In severe cases, it can cause maxillofacial swelling, pain, fever, and also lead to rheumatic myocarditis, glomerulonephritis, iridocyclitis and other systemic diseases. Therefore, early treatment is extremely important. Superficial caries has no conscious symptoms. Medium caries is irritated by cold, heat, acidity and sweetness. Deep caries produces intense stimulation pain, and can also cause facial swelling.