The following 6 points of dental protection for mothers-to-be should not be neglected: 1. Eat less things that are too sweet. Sugar plays a certain role in the occurrence of dental caries, especially sucrose. If you eat sugar 1~2 hours before meal, it will make your appetite decrease, and in the long run, malnutrition related to tooth structure will occur, and tooth tissue structure is weak, so if you eat sugar when you are hungry before meal, your teeth will be easily decayed. In addition, the mouth is a multi-bacteria environment, some bacteria can use sucrose to synthesize polysaccharide, forming a kind of sticky bacterial film, this bacterial film attached to the teeth is very difficult to be removed. Over time will make the teeth decalcification, softening corrosion. 2, acid food to eat reasonably. Many mothers-to-be like to eat acidic things during pregnancy, but eating acid during pregnancy should also be scientific, some acidic food should not eat more. Acid food is easy to make teeth eroded, become fragile and sensitive, suffering from acid erosion. The mother-to-be can choose tomatoes, oranges, prunes, pomegranates, grapes, green apples and other fruits and vegetables instead of acidic foods, which can improve the symptoms of gastrointestinal discomfort during pregnancy, but also enhance appetite and nutrition. 3. Brush your teeth effectively in the morning and evening. Ensure that the brushing time is more than 3 minutes. Toothbrush should choose a health care toothbrush with a soft brush head. Avoid excessive force when brushing to avoid gum damage and recession. 4. It is not recommended to floss with toothpicks. You can use dental floss, which can remove tartar more thoroughly. 5.Massage the gums frequently. Use your index finger to massage gently on the gums, from the outside to the inside and from the top to the bottom. 6, drink more dairy products. Dairy products are the best source of calcium and phosphorus that we need, the main mineral material for tooth enamel and alveolar bone.