There are many different methods of brushing teeth, some of which are reasonable and convenient and worth introducing and promoting, each of which has its own characteristics and is only applicable to different ages and different individual situations. There is no one brushing method that can be suitable for all people. The horizontal brushing method that is customarily used in the population has more disadvantages, but if it is improved, it can also become a better brushing method. Any good brushing method should be easy to learn, clean the teeth well, and not damage the tooth and periodontal tissues. In fact, how well people master the brushing method depends largely on the dexterity of their hands. Although there is a difference between the dexterity and clumsiness of each person’s brushing gestures, the average person can effectively use a toothbrush to clean the mouth as long as they are given adequate induction. Children are slower and lack the patience to cope with complex brushing techniques and should be taught to use simpler brushing methods. As for people with disabilities, they may need to use a toothbrush with a modified handle design for easy grip or an electric toothbrush. The brushing method is very closely related to the type of toothbrush, so here is the main introduction to the brushing method of a normal toothbrush. Physiological brushing method: Place the toothbrush bristles in contact with the tooth surface, with the tip of the bristles pointing to the crown, and then brush lightly along the tooth surface toward the gums, similar to the frictional action of chewing fibrous food on the tooth surface. This method cleans the tooth surface and stimulates the blood circulation of the gum tissue. It promotes healthy periodontal tissues. Bice brushing method: When brushing the labial and lingual surfaces, the bristles are brushed at an angle of 45 degrees to the tooth surface, with the bristle head pointing in the direction of the gums, so that the bristles enter the gingival sulcus and the inter-adjacent area, and some of the bristles are pressed against the gingival margin for a short back-and-forth chatter. The bristles are pressed against the surface, and the end of the bristles are pushed deep into the gingival sulcus for a short back-and-forth flutter. This method can effectively remove the plaque in the cervical and gingival sulcus, massage the gums, and avoid wedge-shaped defects and gingival atrophy in the cervical part of the teeth due to the strong cleaning ability and overcome the shortcomings of the horizontal brushing method. Rotational brushing method: Rotate the brush from the gums to the crown. When brushing the labial surface of the anterior teeth, the buccal surface of the posterior teeth and the lingual and palatal surfaces of the posterior teeth, the tips of the toothbrush bristles face the gums, i.e., the upper teeth face upward and the lower teeth face downward. The toothbrush bristles are at a 45° angle to the tooth surface. In the second step, rotate the toothbrush in a small circular motion toward the crown. In the third step, brush along the teeth to clean all surfaces of the teeth. When brushing the lingual and palatal surfaces of the front teeth, place the tip of the toothbrush bristles directly on the lingual and palatal surfaces of the teeth, pulling the upper teeth downward and lifting the lower teeth upward; when brushing the occlusal surface of the back teeth, place the bristles on the occlusal surface and brush back and forth. Brushing technical points: 1. Identify the attachment site of plaque: This is a very important part of the brushing effect. The plaque display is a reliable way to identify plaque. 2, brush bristles close to the tooth surface: the anatomical structure of the mouth is complex, and there are more uneven areas, especially the adjacent surface of the teeth and the distal mesial surface of the last molar, which is the most prone to plaque accumulation. When brushing the distal adjacent surface of the molar, from a direction or from a different direction, angle, as far as possible, the bristles into and close to the tooth surface, before it is possible to make a clear brush. 3, toothbrush head action: oral cavity structure is more complex, only with a brushing method, a brushing action, is difficult to go to the net plaque in the mouth. When people brush their teeth, the basic action of the toothbrush head has four kinds of longitudinal, horizontal, rotating and chattering to complete the brushing process. 4, sequence of the above-mentioned brushing methods: on the basis of proficiency can also be integrated, for example, first for the horizontal chattering method, and then to make a few vertical chattering method, choose their advantages, to maintain oral hygiene. Oral health is an important part of the health of the whole body and is an important factor in maintaining and improving the quality of life. Modern research proves that dental disease can trigger or aggravate coronary heart disease, diabetes and other systemic diseases. Therefore, oral health not only enables people to fully chew, enjoy delicious food, and provide sufficient nutrition for the body; oral health not only enables people to have a fresh mouth and teeth, express their will to the fullest, and communicate freely with others; it can also avoid and reduce “focal infection” and the occurrence of coronary heart disease, diabetes, stomach disease, low birth weight and other diseases. Therefore, oral health makes people live a healthier, more enjoyable and longer life. So in daily life, although people brush their teeth every day, but a considerable number of people do not know the “learning” of brushing teeth, so learn to brush teeth correctly to maintain personal oral hygiene is extremely important. Toothbrush is an oral health care appliance, only choose to meet the oral hygiene requirements of the health care toothbrush, in order to play the effect of cleaning teeth, and do not damage the teeth and periodontal tissue. Toothbrush requires a small brush head, flexible rotation in the mouth. The bristles are arranged reasonably, generally 2 to 3 rows, to facilitate the cleaning of teeth and toothbrush itself after brushing. The bristles should be of high quality nylon wire, fine and flexible. The choice of toothpaste should be preferred to fluoride toothpaste and other toothpastes. Fluoride toothpaste not only has the effect of inhibiting plaque, but also can protect tooth enamel, enhance the acid resistance of teeth and prevent tooth decay. If teeth are stimulated by sudden cold or hot for a long time, it will not only cause gum bleeding, but also directly affect the normal metabolism of teeth, easily induce dental disease, affect the life of teeth and influence the health. The correct method of brushing can effectively remove plaque and soft scale from teeth and periodontal tissues, which can play the role of preventing dental caries and periodontal disease. Therefore, the vertical brushing method that does not damage teeth and periodontal tissues is advocated. When brushing the maxillary posterior teeth, place the toothbrush on the maxillary posterior teeth so that the bristles are at 45 degrees to the teeth, then turn the brush head and brush from the top downward, and brush each part repeatedly about 10 times, and the brushing method is the same inside and outside. When brushing the posterior teeth of the lower jaw, place the toothbrush on the posterior teeth of the lower jaw, with the bristles still at an angle of 45 degrees to the teeth, turn the brush head and brush from the bottom upwards, and repeat about 10 times for each part, with the same brushing method inside and outside. Brush the labial surface of the maxillary and mandibular anterior teeth in the same way as the posterior teeth. When brushing the palatal surface of the upper front teeth and the lingual surface of the lower front teeth, the head of the brush can be firmly erected and the upper teeth are brushed from the top downward and the lower teeth are brushed from the bottom upward. When brushing the occlusal surfaces of the upper and lower teeth, place the toothbrush on the occlusal surface of the teeth and brush back and forth with a little force in a horizontal direction. Brushing time should be done once a day in the morning and once at night before going to bed, and adhere to the mouth rinse after meals. Each brush should take 3~5 minutes to brush all parts of the teeth. It is more important to brush your teeth at night before going to bed because it can remove the food residue dirt accumulated on your teeth during the three meals of the day. Otherwise, during the night sleep, the bacteria will grow in the mouth, and plaque and tartar will be formed by the deposition of dirt and saliva calcium salt, which will cause tooth decay and periodontal disease. Every time after brushing teeth, you must clean the toothbrush with water and shake it dry, and put the brush head up in a ventilated and dry place. It should be noted that when the toothbrush is used for a long time, the bristles will be bent and even fall off, which will weaken the ability to clean teeth.