It is usually normal for children to have new teeth that are jagged and not accompanied by discomfort. If there is pain, itching, swelling, etc., it is not normal. Usually children change teeth between the ages of 6 and 12, and the new teeth (permanent teeth) have a jagged shape is a normal phenomenon, because the development of the teeth by the fusion of the developmental lobes, prone to local longer or shorter phenomenon. If your child’s new teeth are not accompanied by severe pain, itching and other uncomfortable symptoms, parents do not need to worry too much, and strengthen the child’s dental care can be. If the new teeth in addition to jagged, the child also accompanied by tooth pain, abnormal itching sensation, swelling, local lymph node enlargement and other symptoms, you need to be vigilant and gingivitis, dental caries and other diseases related to the phenomenon is not normal. Usually, parents need to take their children to regular hospitals for examination, in order to clarify the cause of the disease and then follow the doctor’s instructions for treatment, in order to alleviate the symptoms of discomfort. Parents should pay attention to observe their children’s teeth during tooth replacement. Let your child develop good oral hygiene habits, brush their teeth and rinse their mouths in time after meals to avoid food residue retention. Parents should also pay attention to their children’s diet and avoid hard foods.