A white smile is our first business card, but if it becomes yellowish, the impression score will be greatly reduced. Some pigments from colored foods or drinks can be deposited on the surface of the teeth, and the teeth become especially ugly. And these foods are often acidic, the damage to tooth enamel is particularly large, which will also be a vicious circle, aggravating tooth coloring Oh! A. Why do teeth become discolored? The color of food and drinks is mainly pigmented and small molecule coloring substances, so they tend to stay on the surface of the tooth enamel, making it colorful. And most foods contain tannic acid (coffee, black tea, pomegranate, citrus, smoked food, legumes, etc.), which may enhance the adhesion of pigmentogen to tooth enamel, aggravating tooth coloring. 1, coloring the first killer: coffee Undoubtedly, the pigment content and coloring ability of coffee is called NO.1, not only the darkest color and acidic, simply a dual role. Treatment: In fact, the solution to coffee coloring is very simple, add milk to coffee (preferably without sugar), can effectively prevent tooth coloring. 2, coloring the second killer: strong tea Tea itself belongs to the tannic acid food, the higher the temperature is more likely to make teeth coloring. Treatment: in fact, it is not necessary to drink Pu’er these fully fermented tea, green tea, white tea, flower tea coloring effect is much weaker. 3, coloring the third killer: red wine A small amount of red wine has 10,000 benefits, but because it can cause tooth staining, drinking best to pay attention to. Treatment: after drinking rinse mouth is no problem, of course, more rinse mouth, coloring will be the more clear. 4, coloring the fourth killer: carbonated beverages carbonated beverages contain sugar and citric acid, on the enamel has a double dissolving effect, so especially easy to make teeth coloring. Treatment: drink less carbonated drinks is the best way, because carbonated drinks are “zero nutrition” drinks, so drink less than a harm. 5, coloring the fifth killer: colored berries blueberries, cherries, pomegranates, blackberries, mulberries, especially mulberries are rich in plant pigments, so the same will make teeth coloring. Treatment: eat these fruits before the main meal, or rinse or oral cleaning after consumption. 6, coloring the sixth killer: purple amaranth purple amaranth heavy plant pigment you must be impressed, also in the consumption of purple amaranth to pay attention to the tooth coloring problem. Treatment: It is recommended to brush your teeth within one hour of eating to reduce the coloring. 7, coloring the seventh killer: condiments Soy sauce, vinegar, sauce is dark and most of them are acidic, easy to make teeth coloring after consumption. Second, treatment: try to choose light-colored condiments, such as white vinegar, lemon, and remember to brush your teeth after eating.