Mothers are especially surprised when their babies start to get their first baby teeth, but this also means that the action of taking care of baby teeth enters a critical period. This is the time for moms to deal with their dentists to keep their baby teeth from erupting unexpectedly. Milk teeth lay the foundation for permanent teeth: Two sets of teeth grow in a person’s life, namely milk teeth and permanent teeth. There are 20 baby teeth, which start to erupt from the 4th to the 6th month of life and come in around 2.5 years of age. at the age of 6, the baby teeth gradually fall out and the permanent teeth start to erupt and gradually replace the baby teeth. There are differences between baby teeth and permanent teeth: baby teeth are white and permanent teeth are slightly yellow. Because the enamel of the permanent teeth is more calcified and transparent than that of the milk teeth, the baby’s milk teeth need more special care. The crowns of baby teeth are shorter than the crowns of the permanent teeth of the same name. From infancy to adolescence, the jawbone gradually develops and grows, and the capacity of the mouth expands accordingly. As a result, the crowns of newly erupted permanent teeth are larger than those of the eponymous milk teeth. The neck of the baby tooth is thinner than the neck of the permanent tooth. The boundaries between the crowns and roots of the baby teeth are much clearer than those of the permanent teeth. Mothers should not compare the characteristics of their own teeth with those of their babies, thinking that there is something wrong with the baby teeth. The wear of the occlusal surface of the baby teeth is more severe than that of the permanent teeth. Because the permanent teeth have just erupted or erupted shortly, the occlusal surfaces of the permanent teeth are not yet worn or are rarely worn because of the protection of the milk teeth. The milk teeth are less calcified and less hard than the permanent teeth, and they are used for a longer period of time, so the wear is more serious. There are individual differences in the eruption of baby teeth: the eruption of baby teeth usually starts from the 6th month to the age of 2.5 years. However, there are individual differences, as some babies may erupt as early as the 4th month of life and some as late as 13 months before the first baby tooth erupts. This difference may be related to genetic factors, the baby’s gender, and birth weight. Generally, female babies develop teeth earlier than male babies, and babies with heavy birth weights have earlier teething. Late tooth eruption: This refers to a significantly later than normal period of tooth eruption. If the baby is still late to erupt the first milk tooth after 1 week of age, it is too late to erupt the teeth, and the cause needs to be found, which can be related to rickets, low thyroid function and nutritional deficiency. During the eruption period, the mother should pay attention to the physiological phenomenon: the eruption of milk teeth is a normal physiological phenomenon, most babies do not have special discomfort, but some babies will appear local gums white or slightly congested red, even if these phenomena, the mother does not need to worry about this, because these performances are temporary and will improve or disappear after the teeth erupt. Discomfort reactions: Individual babies will have discomfort reactions when teething: such as low fever, diarrhea, drooling, irritability, etc. Fever countermeasures: As long as the temperature does not exceed 38℃, and good spirit, strong appetite, there is no need for special treatment, just give the baby more boiled water; if the temperature exceeds 38.5℃, and accompanied by irritable crying, refusing milk and other phenomena, you should promptly consult a doctor. Diarrhea countermeasures: When your baby has diarrhea, the number of stools increases, but not much water, you should temporarily stop adding other supplementary foods to your baby, mainly porridge, fine, rotten noodles and other easily digestible food, and pay attention to the sterilization of tableware; if the number of times a day more than 7 times, and more water, you should promptly seek medical attention. Salivation countermeasures: drooling is a temporary manifestation of teething, wear a bib for your baby and dry the saliva in time. Irritability countermeasure: If your baby cries and is irritable before teething, he or she will usually calm down if you let him or her bite the teething stick and divert his or her attention. In addition, you can also give your baby a face massage to relax the muscles of the face when he is teething, which can also achieve better results. Teeth cleaning: When your baby’s first teeth come in, you should clean them with clean gauze. After each nursing session, after feeding and at night, the mother should use gauze wrapped around her finger to help scrub the baby’s gums and newly exposed baby teeth. After the age of two, prepare a small-headed soft toothbrush for the baby and teach him/her to brush his/her teeth twice in the morning and evening. Mom can also feed some warm water after eating to play a role in rinsing the mouth, and can also use 2% soda water to clean the mouth after dinner every day to prevent bacterial reproduction and occurrence of dental caries or oral infection. Don’t ignore the dental examination: After all the baby teeth erupted, it is better to give the baby an oral examination once every six months. Regular checkups can detect oral and dental disorders as early as possible. For some developmental abnormalities, through early detection, the best time for treatment can be found to avoid delayed treatment. Through the examination, the mother can understand some general knowledge of dental care, and also can cultivate the correct dental care habit of the baby from childhood, so as to reduce the occurrence of dental caries. If you find that the milk teeth are lusterless, gray in color, or even you can see black cavities, it indicates that the baby has already suffered tooth decay, and should go to the hospital for consultation. Food beneficial to the health of milk teeth: The enamel of milk teeth is thin and prone to dental caries. To maintain strong milk teeth, it is important to ensure sufficient nutrition, especially the supply of vitamin D, calcium and phosphorus which are related to bone development. Vitamin D, calcium and phosphorus are the essential nutrients for tooth development. Vitamin D synthesis can be promoted by “sunbathing”, and vitamin AD preparations are routinely used to prevent rickets in babies aged 0 to 2 years. Breast milk and infant formula are rich in calcium and phosphorus, which are indispensable sources of nutrition for the development of baby’s teeth. Reasonable feeding: add supplementary food to baby in time, such as cookies, steamed bread, vegetables and fruits, which not only supplement nutrition but also help the development of milk teeth. Diet to prevent caries: Eat more fibrous food and take appropriate amount of protein, vitamin A, D, calcium, phosphorus, etc., which can improve the anti-caries ability of teeth and prevent the occurrence of caries. Tooth bed exercise: Give baby some hard food, such as cookie, dried bread, apple, pear, etc., which can not only exercise teeth but also increase nutrition. You can use a dental trainer made of silicone and let your baby chew it in your mouth to exercise your baby’s jawbone and dental bed, so that the teeth can be arranged neatly after eruption.