1.Some foods can prevent tooth decay Yes. Usually, such food is called “anti-caries” food. These foods include fatty foods, foods rich in vitamins and fatty acids, certain protein foods (such as casein in dairy products). 2.Only eating sugar can cause tooth decay Wrong. In fact, some sugary foods are not necessarily sweet, such as potatoes, flour and other foods are not sweet, but they contain a lot of starch, and these foods are slow to decompose and stay in children’s mouth for a long time, so they are also easy to form tooth decay. 3.Eating fruits is good for gums Yes. Chewing fruit itself will play the role of automatic brushing, and chewing is also very beneficial to children’s teeth, which can clean plaque. In addition, chewing apples can stimulate the teeth to work. Teeth are exercised in order to make the food well digested. 4.Rinsing mouth after meal can prevent tooth decay Yes. To protect your child’s teeth, the easiest way is to let him drink a few sips of plain water or rinse his mouth after eating. This can clean the mouth and remove the food residue. In addition, eating a piece of cheese after meals can also prevent tooth decay. This is because the proteins and lipids contained in cheese can protect the tooth enamel from acidic substances.