In general, baby teething is based on the principle of lower first and then upper, middle first and then both sides, but the teething time may vary early and late depending on the individual, and the teething order may also vary slightly. Babies generally erupt first with the lower two central incisors, but some babies have the upper two central incisors first and parents may be confused. The teething order of babies is related to genetics and nutrition, usually babies are teething in order, if some babies teething order is reversed, but as long as the teeth are arranged in a normal form and quality, it usually does not affect much. Parents need to pay attention to the baby’s teething process may appear pain, cry, irritability, excessive saliva production, or like to chew something, this time should try to cooperate with the baby, help him wash some teething bars and other things to relieve the baby’s discomfort symptoms. It is also normal for babies to have their upper teeth first due to individual differences. Parents should pay attention to the baby’s oral hygiene since the baby’s first tooth comes out, the baby’s teeth are more fragile, the enamel is thin and therefore the possibility of tooth decay is greater, so from the beginning of teething, you can use dental silica gel to help clean the baby’s teeth and protect the health of the baby’s teeth.