September 20 is National Dental Day, which was established to spread the knowledge of dental health and promote good dental habits so that everyone can have a healthy set of teeth. It is the same as “Teacher’s Day” and “Nurse’s Day” because people tend to neglect their dental health or do not know how to protect their teeth. When September 20 is approaching, various media outlets are prepared to do programs to help educate dentists about the issue. This is a good idea, and it does serve a purpose, but the results are still not promising. There are three reasons for this: First, the time and firepower of the publicity is short, and it is difficult to make people remember the knowledge in one day. Second, the depth of publicity is not enough, the same every year, the same content can be found in the annual publicity materials. Third, because the media editors are also a layman in the knowledge of dental disease, so the interview questions asked are rather superficial. For example, it is always limited to how to choose toothbrush and toothpaste, how to brush teeth and so on, when in fact this knowledge can be casually found in various occasions. Except for some poor areas, urban people still know more about how to brush their teeth. The same question every year is also a problem for the dentist being interviewed. If the answer is the same as before, it would be better to take out last year’s information and replay it again, and save the time of the interview. But knowledge does not change, and it is really difficult to change the content of the answer. Recently, a reporter asked a few questions about toothbrushes, and I gave some simple answers to them. I don’t know if the passersby reading this article can understand it, but I hope it will be helpful to you and I will do something for the “Love Teeth Day”. Question: 1. What are the main causes of bleeding gums when brushing teeth? 2. Does improper use of toothbrush cause gum bleeding? 3. Nowadays, there are many kinds of toothbrushes, how should I choose the right one for myself? 4. What should I pay attention to when choosing a multifunctional toothbrush? 5. Is there a multifunctional toothbrush that can clean the tongue? Does it work? 6. What is the main function of mouthwash? What should I pay attention to when choosing one? Answer: 1. The main reason for bleeding gums when brushing teeth is inflammation of the gums, if there is no inflammation when brushing teeth, there may be problems with the quality of the toothbrush, for example, the toothbrush bristles are too hard, the bristles are not polished and pierce the gums or mucous membrane, causing damage to the gums and mucous membrane and bleeding. 2, because of the reason of toothbrush and gum bleeding, or the main reason is the improper choice of toothbrush, those poor quality, shoddy toothbrush is easy to stab the gums. Sometimes some new toothbrushes can also cause gum bleeding when brushing in the short term, but it will be fine soon, just like wearing a new pair of shoes, there is a short-term break-in process. 3, qualified toothbrush should belong to health care toothbrush, the country has certain standards. For example, the number of rows of toothbrushes, the arrangement, the softness of the bristles, the head hair light, and so on. The general public does not necessarily need this knowledge, and it is not easy to understand, the simple way is to choose some well-known brands of toothbrushes, size according to their mouth size, adults and children’s respectively. For the elderly and orthodontic people with large gaps, there can be some special toothbrushes to choose from, but some special toothbrushes, such as gap brushes and interstitial brushes are less available in the market, so you may need to go to a specialist hospital to buy them. 4, the so-called multifunctional toothbrush, for most people is not necessary to choose. A normal toothbrush is sufficient. You can consult a specialist to see if you need one. 5. Tongue moss is dirt that adheres to the back of the tongue, or hyperkeratotic tissue, or certain food pigments. Tongue moss that is difficult to clean is mainly those on the back of the hyperkeratotic tongue, or shaggy tongue, which can easily harbor dirt and cause bacteria to multiply, which can lead to inflammation of the back of the tongue or bad breath. This dirt and bacteria can be cleaned up with a dorsal tongue brush or dorsal tongue scraper, or by gently brushing with a soft-bristled toothbrush. Most people do not need this toothbrush. 6, many mouthwash publicity has a lot of role, containing this, that effective ingredients, but from the practical point of view, even if some ingredients in the experiment is confirmed to be effective, but really work, depending on the concentration of active ingredients, the role of time, whether targeted, and so on, and mouthwash in the mouth for a very limited time, in addition to the effective concentration will not be very high, it is difficult to really play the role of prevention and treatment of disease. Therefore, the real role of mouthwash which has two, one is to gargle off the food residue in the mouth and no dirt adhering to the teeth, the second is to wake up the mouth (with mint type mouthwash), other roles can not be overestimated. From an economic point of view, gargling with cool white water can achieve the purpose. Some of the dirt that has adhered to the teeth can only be removed by a good brushing. In fact, in addition to the habit of brushing teeth every day, it is also very important for modern people to maintain the health of the whole body organism and psychological aspects, because the formation of dental diseases may also be caused by many systemic factors. Here, I hope everyone can truly understand the purpose of “Love Teeth Day” and “Love Teeth Every Day”, so that everyone can achieve the goal of “8020”. Only in this way can everyone achieve the goal of “8020”. In addition, according to the requirements of the Ministry of Health, the Beijing Municipal Health Bureau requires large hospitals in Beijing to conduct free dental checkups during the “Love Teeth Day” on September 19 and September 20, if there is no change, then people who need dental checkups can get a free dental checkup sheet at the registration room of the hospital and go to the corresponding Department of Dentistry for examination.