It can eliminate the soft white dirt, food debris and some plaque in the mouth, and it has the effect of massaging the gums, thus reducing the disease-causing factors in the oral environment and enhancing the disease resistance of the tissues, brushing has an important role in the prevention of various oral diseases, especially for the prevention and treatment of periodontal disease and caries, etc. There are many different methods of brushing teeth, some of them are reasonable and convenient, and they are worth introducing and promoting. 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 dental 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 in the dexterity 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. Brushing method is very closely related to the variety of toothbrushes, here we mainly introduce the brushing method of ordinary toothbrushes.1. Physiological brushing method: Bring the toothbrush bristles into contact with the tooth surface, point the tip of the bristles to the crown side, and then brush lightly along the tooth surface towards the gums, similar to the friction action of chewing fibrous food on the tooth surface. This method cleans the tooth surface and stimulates blood circulation to the gum tissue. It improves the health of periodontal tissues. 2.Beas brushing method: When brushing the lip and tongue, the bristles are 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 on the gingival margin for a short distance back and forth. The bristles are pressed against the surface so that the end of the bristles penetrate deep into the cleft sulcus for a short back-and-forth tremor. This method is stronger because of the cleaning ability, overcome the drawbacks of the horizontal brushing method, and become a short horizontal brush, can effectively remove the plaque in the neck and gingival sulcus, massage the gums, but also to avoid, causing wedge-shaped defects in the neck and gingival atrophy. 3, rotary brushing method: from the gums to the crown direction rotary brush. When brushing the labial surface of the front teeth, the buccal surface of the back teeth and the lingual-palatal surface of the back teeth, the tip of the toothbrush hair bundle faces the gums, that is, the upper teeth face up and the lower teeth face down. The toothbrush bristles are at a 45 degree 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. When brushing the lingual and palatal surfaces of the front teeth, place the tip of the toothbrush directly on the lingual and palatal surfaces of the teeth, pull the upper teeth downward and lift the lower teeth upward; when brushing the occlusal surfaces of the back teeth, place the toothbrush hairs on the occlusal surfaces and brush back and forth. Third, the main points of brushing technique: 1, identify the attachment site of plaque: this is a very important link to obtain the effect of brushing teeth. The plaque display is a reliable method to identify plaque. 2, brush bristles close to the tooth surface: the anatomical structure of the oral cavity is complex, and there are more uneven areas, especially the adjacent surface of the teeth and the far middle surface of the last molar, which is the most likely to accumulate plaque. When brushing the distal adjacent surface of the molar, from a direction or from a different direction, angle, try to put the bristles into and close to the tooth surface, before it is possible to make a clear brush. 3, toothbrush head action: oral 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, order: the above-mentioned various 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 its advantages, to maintain oral hygiene. Fourth, what are the hazards of horizontal brushing method? We should not only develop good brushing habits, but also pay attention to the method of brushing. If the brushing method is not right, it can also cause abuses, the most common damage is tooth surface depletion and gum recession. The horizontal brushing method is a spontaneous brushing method for the general population, one of the longest-standing and most common brushing methods, the method is to put the tip of the bristles in contact with the tooth surface and make a forward and backward brushing action. It has many shortcomings, mainly can not adapt to the oral anatomical requirements, can not brush the teeth, especially difficult to brush the lingual surface of the teeth and the gap between the two teeth, but also in the purpose of massage gums, and easy to cause damage to the hard tissues of the teeth and gums. For this reason, we should resolutely give up this bad horizontal brushing method, and should use the correct brushing method.