It is possible that the incisors grow crooked when the child changes teeth, if the crookedness is not particularly large, that the molar twist is not more than 45 degrees and the age is not more than 9 years old, the incisors are generally adjusting on their own. If the teeth are crooked more than 45 degrees or the age is more than 9 years old incisors are still crooked, it is recommended to consult a doctor at any time, through diagnostic analysis, may have to wear orthodontic appliances or do a sequence of extraction of milk teeth in time to solve. Three approaches are generally taken in the case of crooked incisors. Before the age of 9, if the crookedness does not exceed 90 degrees, an observation approach is taken; for crooked teeth over 90 degrees and for children over 9 years old, braces may be worn to adjust the degree of crookedness. Some braces are more effective, and some braces are still a little crooked after wearing them for a while, which may be related to the child’s growth and development. Encourage children with crooked incisors, about 9-10 years old to do outdoor sports to increase growth, long bone growth and jaw growth in line, when the growth of height and weight, jaw bone will also have a lot of growth, increase the amount of exercise for children, eat hard food, such as chewing apples, eating ribs, stimulate jaw bone growth, conducive to alleviate the crowded and crooked front teeth.