Tooth decay, the professional term is called “caries”, the common people called “worm teeth”, is due to the bacteria attached to the teeth, under certain conditions, through continuous reproduction, and secretion of some acidic substances, resulting in tooth decay. So repeatedly, so that the hole is getting bigger and bigger, more and more tooth surface corrosion. The conditions for tooth erosion are bacteria, food for bacteria to survive and reproduce, time for bacteria to stay on the tooth surface and the quality of the tooth. The substance that enables the bacteria to adhere firmly to the tooth surface is a sticky layer, which cannot be removed by rinsing and can be removed by effective brushing within 24 hours. Therefore, if we can prevent tooth decay by effective brushing within 24 hours. In other words, if you can ensure that you have a thorough, all-round brushing once a day, you can achieve the purpose of brushing your teeth. “Four-step brushing method”: 1, understand the purpose, flexible brushing (ring brush, vertical brush, horizontal brush): in the dental knowledge continues to popularize today, we all know the importance of brushing every day, and also know that you have to brush your teeth vertically, but they are not clear about why it is important to do so, so brushing every day is just like a monk reciting the scriptures to get by, and the effect can be imagined. If we use our tongue to lick our teeth, we can feel the teeth in our mouth, like a row of neat columns, the gap between two columns is vertical, if we brush horizontally, it is difficult to brush the dirt in the gap between the two teeth clean. For this reason, we advocate brushing along the gap, i.e. brushing vertically. However, in the process of brushing, we often feel that the vertical brushing method is not easy to use force, and it is also difficult to brush the dirt on the surface of the teeth clean, affecting the quality of brushing. In fact, brushing is a casual, flexible activity, as long as you know why you need to brush your teeth, all the problems will be solved. Previously, some experts described that brushing horizontally can cause groove-shaped defects in the neck of the teeth (wedge-shaped defects), and this issue is still under debate. In short, if we brush our teeth in the process of toothbrush selection, in the vertical brush on the basis, with a ring brush and appropriate horizontal brush, you can achieve the purpose of cleaning teeth. 2, closed-eye reverie, everything: the structure of the teeth is intricate and complex, mechanically according to the vertical brush, ring brush and horizontal brush method of brushing, it is easy to miss some important parts of the teeth. Assuming that our daily brushing process is captured on a monitor and displayed on a screen, and that we are required to brush every tooth and every side of the tooth, the brushing effect is definitely much better. In fact, our brain can help complete this task of monitoring, as long as we brush our teeth when the net heart and eyes closed, fully imagine the toothbrush in the mouth of the movement, at any time, “command” the toothbrush in the teeth of the various surfaces of the full range of motion, and to maintain enough time, number and strength, can achieve the purpose of brushing teeth. 3, learn “laundry” (laundry and brushing): it seems that washing clothes and brushing teeth are two completely different things, in fact, in many ways are the same. We wash clothes with soap (stain remover), brush teeth with toothpaste (stain remover); laundry with hand rubbing or washboard, brush teeth with a toothbrush; laundry to water (in order to over the net by the soap dissolved in the dirt), brushing teeth also need to water, with the same purpose, but also in order to remove the dirt dissolved by the toothpaste. However, many people in the brush, often ignoring the last step (over water), although, the dirt on the tooth surface by the toothpaste cleaned down, but it did not leave the surface of the teeth completely, only with the water repeatedly brushed a few times, in order to remove these viscous mixtures clean. 4, “invite” inspection “officer” acceptance: in everyone’s mind, the tongue in addition to speak, taste, etc., little do we know it in the teeth of the role played by the cleaning. As the saying goes, “three inches of tongue” is a metaphor for a person who can speak well. Indeed, the tongue is the most flexible of our human organs, the most sensitive one, it can be long, can be short; can be wide, can be pointed; can be up, can be down; can be flexed, can be stretched, in short, it is almost all the surfaces of the teeth can be reached, and its sensitive sensory function, can be very good to us “report” the surface of the teeth of the degree of cleanliness. Therefore, when we brush our teeth, may as well “please” tongue “adults” out of acceptance, whether qualified, or continue to “rework”. Summarize the above: 1, brushing teeth and washing clothes, the same need for brushes, stain remover, brushing time, parts and water. 2, if there is a thorough, comprehensive brushing within 24 hours, you can effectively protect the teeth. 3, the propagation of bacteria and corrosion of teeth is to have a certain time, although sugary foods are prone to caries, but eating sugar does not inevitably lead to dental caries, which is very important for parents with small children, children love to eat sugar is nature, like to let her (him) to eat, but pay attention to eat must be brushed and cleaned up after eating, you can talk to the child on good terms. 4, fibrous food is a natural toothbrush, tell the child to eat more of these foods, one is conducive to clean teeth, in addition to promoting the development of facial jawbone, to ensure that the teeth can be neatly aligned, so as not to have to correct the teeth in the future.