Selection of toothbrush brush head should not be too large, the best soft and fine bristles of high-quality nylon wire (good resilience, poor water absorption and easy to dry, strong abrasion resistance), the top of the bristles should be chosen to grind, oval, the brush handle should be easy to grasp, too thin and too short are not suitable. If the above four conditions are met, it can be called a “health toothbrush”. Choose toothpaste Fluoride toothpaste is the first choice. Because the right amount of fluoride can reduce the solubility of enamel (commonly known as enamel), enhance the structural strength of enamel crystals, enhance the hardness of the teeth, and promote the remineralization of mildly demineralized enamel, can play a role in the prevention of dental caries. However, if the human body intake of fluoride too much, will have a negative impact on health, it is recommended that children under the age of 3 years should be cautious of fluoride toothpaste, 4 to 6 years old children should be used under the guidance of adults, the amount of fluoride toothpaste should not be too much, each time the amount of about the size of a soybean can be. The purpose of brushing is to remove plaque, tartar, food debris and pigmentation, to keep the mouth clean, and at the same time, massage the gums to improve periodontal health. There are many ways to brush teeth, no matter which method, all sides of the teeth should be brushed to. At present, we advocate more is “horizontal short-distance vibration brushing method” (i.e. Bass method). This method of brushing allows the bristles to reach into the gingival sulcus and adjacent surfaces of the teeth, aligned with the area where plaque is most likely to adhere to, short-distance horizontal trembling, plaque can be effectively removed. With the “Bass method” of brushing the crowd, should pay attention to the following essentials: the bristles will be placed at the junction of the teeth and gums, and the surface of the teeth at a 45-degree angle, the level of gently trembling, and then brush up and down along the tooth gap, not to miss everything; with the upper end of the bristles brushing the upper and lower front teeth on the inner side of the teeth of the occlusal surface should be brushed back and forth; and finally don’t forget to brush the tongue, so that the breath Fresher breath. It is recommended that you brush your teeth twice a day, 10 times for each part (5 times back and forth), and the brushing time varies from person to person, but generally should not be less than 3 minutes. Brush the outer surface of the teeth first Brush the bristles of the toothbrush with the surface of the teeth into 45 degrees, diagonally placed and lightly pressed on the teeth and gums of the junction, gently do a small arc-shaped back and forth brush, the upper row of teeth down, the lower row of teeth to the top of the brush, pay attention to the light brushing of the gums, appropriate massage can promote its blood circulation. Brush the occlusal surfaces of the teeth Hold the toothbrush flat and brush the occlusal surfaces of the teeth back and forth with moderate force. The dynamic bristles of the healthcare toothbrush can play unique roles in different parts of the tooth, cleaning the tooth surfaces and the gaps between the teeth in depth, respectively; the flexible and thin head of the brush can make the back molars, which are hard to reach, also be cleaned. Brush the inside of your teeth Hold the toothbrush upright. Use the dynamic bristles on the front of the toothbrush to gently clean the inner surfaces of the teeth up and down. Brush the surface of the tongue Gently remove food debris and bacteria from the inside out. Keeps your breath fresh.