Many of us ordinary Chinese people do not have the habit of seeing a dentist regularly, and of course, we pregnant mothers also belong to the ordinary people. First, many pregnant mothers also do not understand why they need to see a dentist before they get pregnant. First of all, oral problems are prone to occur during pregnancy. After pregnancy, the hormone level in a pregnant mother’s body changes and her gums are more prone to inflammation, redness, swelling and bleeding than before pregnancy. In addition, the eating habits change during pregnancy, the number of meals increases, if the pregnancy vomiting is serious, pregnant mothers can not brush their teeth properly, the possibility of oral diseases such as dental caries and gingivitis during pregnancy will be greatly increased. Second, oral problems during pregnancy affect the health of pregnant mothers and fetal babies Research has confirmed that pregnant mothers with periodontal disease have a higher risk of pregnancy, the possibility of miscarriage, premature birth, low birth weight babies compared to periodontal health of pregnant mothers will greatly increase. In addition, oral problems caused by the discomfort will affect the pregnant mother’s eating, thus affecting the health of the pregnant mother and the growth and development of the fetal baby Third, oral diseases during pregnancy diagnosis and treatment difficulties and risks are greater After pregnancy, in order not to affect the fetal baby, many common dentistry drugs can not be used, X-ray examination is also limited. In early pregnancy and late pregnancy, due to the risk of miscarriage and premature birth respectively, oral treatment must be more cautious. Generally speaking, mid-pregnancy is a relatively safe period for treatment. Therefore, it further indicates that it is better to address oral problems before pregnancy. Fourth, it is recommended to go to the hospital for a comprehensive oral examination six months before pregnancy to rule out the occurrence of gingivitis, dental caries, pulpitis and apical inflammation. Find out if there are residual roots, crowns and wisdom teeth that need to be extracted. And whether there is any loose teeth, etc. According to the examination results for targeted treatment, such as: periodontal disease to control periodontal inflammation; serious caries to do endodontic treatment V. Other oral protection precautions 1, morning and evening brushing using the correct brushing method: Bartholomew’s brushing method 2, with a soft-haired toothbrush 3, floss to clean the plaque on the adjacent surface 4, avoid excessive eating sweet, oily, acidic food 5, the best regular dental cleaning A good mouth of teeth is related to the health of two generations, preparing mother Please go to a dental hospital, a regular general hospital or a dentistry department of a maternal and child health hospital for dental care.