The first kind, green tea. Three minutes after a meal, the so-called dental plaque will appear. It will attach a layer of white material to your teeth. You think it's plaque, but it's not. It will stick to your teeth until the next time you eat it, it will gradually turn yellow and finally stick to your teeth to turn dark brown. But there is a substance called fluoride in green tea, which can not only strengthen teeth, but also prevent tooth decay and eliminate dental plaque. Green tea contains tea polyphenols, which is anti-cancer. Therefore, green tea not only has the effect of removing dental plaque, but also can resist cancer and prevent cardiovascular blockage.
The second kind, black tea. Black tea is not like green tea. Only 1 liter of black tea can provide people with about 2 mg of fluorine, which can meet half of the fluorine content required by an adult 1 day. In addition, tea also contains polyphenols, which can prevent the formation of dental caries. However, it is not recommended to drink more black tea, and the concentration of the brewed black tea should not be too high, otherwise it will not meet the standard.
In fact, not all teas are effective, but it is said that tea leaves will contain theophylline. However, it has been reported that since 1970s, people have been studying the efficacy of tea in preventing dental caries, such as drinking tea, gargling with tea soup, brushing teeth, or using toothpaste containing tea, but brushing teeth with tea soup is the best. Drinking tea soup brewed with10g of tea every day can meet the human body's demand for fluorine. Tea not only contains protein, fat and 10 vitamins, but also contains nearly 300 kinds of components such as tea polyphenols, caffeine and lipopolysaccharide, which have the functions of preventing and treating myocardial infarction, refreshing, relieving fatigue, resisting bacteria and promoting metabolism. So drinking tea is not only harmless, but also beneficial.