Patients often ask me, “I brush my teeth very carefully every day, why do I still have bleeding gums and loose teeth? There are many doctors who simply say to brush vertically and not horizontally when they teach patients the correct way to brush their teeth. Here I will tell you what to pay attention to in addition to the vertical brushing method for several misunderstandings of patients’ brushing. 1, to do a full mouth cleaning first, to scrape the dental surface of the calculus thoroughly clean. Calculus is relatively hard, brushing alone is not brushed off, will only accumulate more and more, causing gingivitis, gum bleeding, further development will cause periodontitis, resulting in loose teeth. Ultrasonic scaling must be done to remove the calculus, and if there is already a more serious periodontitis, subgingival scraping or even periodontal surgery must be done to control the condition. After the calculus is removed and then come back to brush your teeth carefully in order to play a health care prevention effect. 2. Every tooth and every tooth surface must be brushed clean. Many people brush the parts that are easy to brush (such as the buccal and occlusal surfaces of teeth) carefully, but the parts that are not easy to brush (lingual and adjacent surfaces) are more sloppy, in fact, these are the parts that are more likely to accumulate calculus and need to be brushed carefully in order to brush clean. Focus on the area where the teeth and gums meet. Some people are afraid of brushing their gums or dare not brush because of bleeding gums, which results in a vicious circle and further aggravation of symptoms. Generally each brush needs 3 minutes, to feel each tooth, each side of the tooth have brushed, not easy to brush the parts more back and forth a few times. 3, regular replacement of toothbrushes, choose the right toothbrush. Toothbrush to use the wave-shaped, with vertical brushing method in order to brush the gap clean. At present, the market is basically wavy. Regularly use a medium-hard bristle toothbrush, but use a soft-bristle toothbrush for those who have severe wear and tear or who brush very hard. Toothbrush should be replaced regularly, about 3 months to replace once. 4, the choice of toothpaste. Many people are superstitious drug toothpaste, asking which toothpaste is better to use? In fact, to maintain oral hygiene, the most important thing is regular oral examination and cleaning; early prevention and control; correct brushing method. As for the choice of toothpaste is secondary. Of course, choosing the right toothpaste can play a better prevention and control effect. Generally, children mainly use double fluoride toothpaste to prevent caries. For patients with bleeding gums, bad breath and periodontitis, you can consider using drug toothpaste. Those who are sensitive to cold and acid can use desensitizing toothpaste (such as cold acid spirit, Shanghai anti-acid toothpaste, etc.). But it must be remembered that toothpaste is secondary and can only play an auxiliary role, drug toothpaste and desensitizing toothpaste to be used under the guidance of a doctor, in order not to delay the condition. 5, the choice of brushing time and frequency. At present, most people brush their teeth in the morning and evening, and it is enough if they can brush cleanly. It is extremely important and essential to brush your teeth before going to bed. After going to bed, saliva secretion is reduced, without the rinse of saliva, plaque will easily breed, and you will feel the odor in your mouth after waking up in the morning. Therefore, it is important to brush as clean as possible before going to bed so that plaque is reduced to a minimum. Don’t eat anything else after brushing your teeth except drinking water. For patients with serious periodontitis, crowded teeth or other factors that make it difficult for them to keep themselves clean, it is best to brush their teeth 5 minutes after three meals, and for patients who have orthodontic treatment, it is required to brush their teeth after each meal.