Not many modern people really know much about their teeth, but dentists take note of the problems that exist. According to the U.S. Reader’s Digest, 22 leading American dentists have told some of the lesser-known secrets about teeth. 1, do not think that high cholesterol levels will only make you fat, in fact, too much cholesterol intake can lead to periodontal disease. 2, If your hands suddenly bleed when washing your hands, people usually bandage themselves or go to the doctor. However, when you brush your teeth with blood, people are oblivious to it. And bleeding gums may indicate that you have periodontal disease. 3, Even with healthy gums, you should visit the dentist twice a year, yet most people fail to do so. 4, in many patients, a strange phenomenon can be found: periodontal disease often has a serious impact on the large teeth in the back of the mouth, but the patient’s front teeth are very healthy. The reason for this is that people only carefully brush the teeth that others can see. 5. Dentists always tell patients with severe gum disease to floss, but it’s not the only time you need to floss. It’s like how you often need to clean out the bottom of your shirt pocket so it doesn’t accumulate debris. 6. When people first meet, the first thing they notice is the eyes, then the teeth, and only in third place is the hair. However, people spend money on the hair, but much more than the money spent on the teeth. 7, maintaining oral hygiene requires brushing your teeth for 10 minutes a day. Yet the average brushing time for adults is only 2 or 3 minutes, and the average brushing time for children is even shorter. 8, smokers often use mints or mouthwash to cover the smell of smoke, however, the foul smell from tobacco has invaded the gum tissue, and these tissues are distributed in the mouth, so the use of mints or mouthwash is not to play a role in dental care. 9, people brush their teeth often only brush the surface, it is difficult to brush the deeper phagocytic area of the mouth, but it is this place emits bad odor. Therefore, you must floss every day and clean your mouth every few months. If these are done, but the mouth still emits an unpleasant odor, we must start with diet, or check whether there are other health problems. 10, mouthwash containing alcohol will make the mouth dry, so within half an hour of use, your breath may be very fresh, but after that it will become unpleasant and even worse than before. 11, If your breath is very bad, the dentist usually will not take the initiative to remind you; only if you ask, the doctor will tell you. 12, Toothpaste is not a panacea, and the new bright white formula is no exception. Although this toothpaste can remove the dark spots on the surface of your teeth, it cannot make your teeth as white as bleach. 13, Electric toothbrushes are one of the best tools to emerge from dentistry. They replicate the professional cleaning process, and although they do not reach below the gum line, they are usually superior to conventional toothbrushes. 14, Every tooth is surrounded by saliva full of decaying material and bacteria, and people should use scaling more often to clean their mouths of this debris every day for the benefit of gum health. 15, there are often good-looking, well-dressed children, but full of black teeth, which is related to poor parental supervision. 16.In the past 20 years, dentists keep talking with parents about the problem of bottle caries, telling them not to let their children sleep with bottles in their mouths, but it doesn’t seem to have any effect. 17.If the mother’s mouth is not hygienic, when she tastes the child’s food hot or not, and then puts the spoon into his mouth, at the same time, she also passes the tooth decay bacteria to the child. 18. Children with dental problems often get into trouble at school. They often act distracted and easily agitated. Teachers may think they have demeanor problems, but in fact they have a toothache. 19. Parents often think that children’s milk teeth will be replaced by new teeth, so they don’t need to pay much attention to their early teeth. But when a new tooth comes in too early and the other teeth haven’t fallen out yet, the child’s teeth will grow backwards and forwards if not seen in time 20. This drink is both sugary and acidic, so it can erode teeth and lead to tooth decay. 21, if you want to reduce the harmful bacteria in the mouth, you should eat more xylitol. Xylitol can change the chemical properties of the mouth. 6 to 7 tablets of xylitol per day will help you from tooth decay. 22, Some people lose confidence in teeth whitening patches because the gel substance can make teeth and gums feel uncomfortable. Just use a little fluoride mouthwash or gel before and after using the whitening veneers to make your teeth less sensitive. 23. Silver and mercury fillings do release small amounts of mercury due to oral wear and tear. However, you will only experience about 300 fillings before the concentration of mercury becomes a threat to your health, and even then, the threat is minimal. Many dentists use silver-mercury fillings in their own mouths. 24. Removing a metal filling releases more mercury than putting it in. 25, Although alloy fillings are popular with patients, metal fillings are more durable, especially if the tooth is used frequently. 26, Many patients worry that dental x-rays can induce cancer, but if you spend an hour outdoors, you will suffer more radiation than if you have a full set of dental x-rays. The dentist’s concern is that without dental x-rays, you may miss important information about your treatment. 27. Crooked teeth can cause migraines. If we can straighten the teeth, the headache often disappears automatically. 28.One of the symptoms of diabetes is bleeding gums. 29, Teeth will be whiter when they lose water. Some dentists promise that their treatment will improve your teeth by 4 shades. But if the mouth is open for an hour, the teeth can be improved by 2 shades by dehydration alone. 30.If you bleach your teeth too often, the enamel will become thinner and eventually your teeth will be close to translucent. 31.When it comes to painful things, people often use tooth extraction as an example. In fact, tooth extraction is both quick and easy. 32, A study showed that dental implants can enhance sexual desire, perhaps because people feel more confident when they are not missing teeth or not worried about losing their dentures. 33, Many patients do not go to the dentist until their condition has progressed to a fairly serious level. They need to pay a lot more hard-earned money for this. 34, the premise of cosmetic dentistry is oral health – you can’t build a house in a swamp. But if you look around, you will find some dentists who do cosmetic dentistry without first treating gum disease. 35. Some dentists will say that you need a deep cleaning. Unless the examination results show that you have a lot of tartar on the roots of your teeth, or other signs of disease, you don’t need a deep cleaning of your teeth at all. 36.Before visiting the dentist, you can seek advice from colleagues or friends and family, but make sure they have been in contact with their dentist for at least 5 years, only after that long will you know if the crown is healthy and the filling is working. 37. Never eat garlic before visiting the dentist – the dentist will be full of gratitude for this.