A guava: guava is very rich in vitamin C, like many people obviously brush their teeth without very hard, but the gums are very easy to bleed, indicating that the body lacks vitamin C to protect the gums. Guavas are among the top quality fruits in the vitamin list. You can eat more guavas to replenish the vitamin deficiency and protect the health of your gums. But to remind you, if you already suffer from periodontal disease, not very suitable for eating too hard food, remember to pick soft guavas to eat. Celery: Celery is also known as a “vegetable toothbrush” because it contains a lot of coarse cellulose, which can clear the bacteria attached to the surface of the teeth when chewing, while biting celery, the mouth will secrete a lot of saliva to neutralize the acidity in the mouth, which can reduce the production of plaque and also make the mouth have a natural antibacterial effect. In addition, celery itself is also rich in vitamins, especially celery leaf vitamin C content is better than the stem, usually eaten with the leaves do not prevent eaten together. Three green tea: some people are used to a cup of green tea after a meal, because green tea has a clear flavor, can be relieved of fatigue, by the way to lift the bad taste in the mouth. The reason why green tea can bring good breath is because of the catechin component, which can remove bad breath and bad odor. According to medical research, catechins are also able to remove cancer-causing cells from the body, not to mention streptococcus pyogenes, which can cause tooth decay in the mouth! In addition, green tea itself is also very rich in fluorine, is the best natural anti-acid anti-cavity food. Onion: Onion, which is known as the “queen of vegetable species” in Europe, contains a sulfur compound that has a strong bactericidal effect, so it has a good bactericidal effect on Streptococcus pyogenes that causes tooth decay, especially raw onion, the effect is obvious. In addition, the nutritional value of onions is very high, rich in nutrients in addition to crude fiber, the nutrients required for teeth such as minerals phosphorus, calcium, multivitamins, etc., are available, is very excellent food for dental health. Five whole grains: eat more whole grains, not only can reduce the occurrence of diabetes or heart disease, the latest research shows that eating the equivalent of three or four slices of whole wheat bread a day of whole grains, and the role of preventing periodontal disease. This study from Canada, is for periodontal disease patients to do experiments, found that eating more brown rice, whole grain bread and other whole grain food subjects, far lower than those who eat a small amount of whole grains suffer from periodontal disease, and thus confirm that it has the effectiveness of preventing periodontal disease. Six raisins: It is generally believed that the formation of tooth decay is related to the formation of plaque by bacteria. According to recent American experimental results, certain compounds in raisins can inhibit the growth of two types of bacteria in the mouth that are responsible for tooth decay and periodontal inflammation. Of course, sugar-free all-natural raisins are the best, and it’s okay to eat general raisins, but general raisins are mostly dessert-type foods, so remember to clean your teeth immediately after eating them, otherwise there will be side effects instead. Seven mint: the characteristics of mint is a fragrance, almost all dental chewing gum brands, toothpaste can not do without this taste. Mint can bring aromatic breath in addition to its cool feeling can also refresh the brain, the point is that mint contains ingredients to remove bad bacteria from the teeth, to help protect teeth. Many countries in Europe and the United States have mint-flavored mouthwash, is used as a health care dental use, in addition if the gums feel swollen discomfort, the use of mint mouthwash, there is a pain-relieving effect. Eight dairy products: Dairy products are rich in calcium and nutrients, which are also useful for preventing tooth decay. Dairy products are not only rich in calcium, which is needed by the human body during the growth period of teeth, but also have a protective effect on teeth. The calcium and phosphate contained in dairy products can balance the pH of the oral cavity and prevent tooth decay caused by an acidic environment conducive to bacterial activity in the oral cavity, such as milk, yogurt, cheese, etc. are rich in calcium, so you may want to take some more.