Children with misaligned teeth usually do not grow in on their own. In most cases, children’s milk teeth will grow neatly, but when the permanent teeth replace the milk teeth, due to the retention or premature loss of milk teeth, as well as bad habits, such as licking the teeth, spitting, biting the finger, etc., resulting in the eruption of the permanent teeth is not in the position of the milk teeth, the alignment of the misalignment of the situation. Children with misaligned teeth cannot grow back on their own and require early intervention. Through the control of soft tissues such as muscles in the mouth and the correction of bad habits, the management and intervention of dental alignment is carried out early, and at the same time, mild force is applied to the teeth to help expand the dental arches and adjust the occlusal relationship to the extent of resolving the problem of misaligned teeth and facial underdevelopment. Parents are advised to observe their children carefully and take them to the hospital in time if they have misaligned teeth during tooth replacement, so as to avoid misaligned teeth affecting facial development, which in turn affects the child’s psychological development.