Children with crooked teeth after tooth replacement can be dealt with in the following ways: 1. Extraction of baby teeth: If the position of a tooth is skewed during the tooth replacement process, the remaining baby teeth can be extracted; 2. Early orthodontics: If some of the children’s teeth grow crooked during the tooth replacement process, and there are more serious situations such as insufficient gaps, narrower dental arches, uneven teeth and protruding front teeth, early orthodontics can be carried out. Early orthodontic treatment is generally available at the age of 7-8 years, without waiting for the child’s teeth to be replaced. Early orthodontic treatment can be used to widen enough space for the uneven teeth, so that the teeth can be adjusted to the correct position, which can reduce the difficulty of later orthodontic treatment, and introduce the development of the child’s bones and teeth in a normal direction, laying a certain foundation for subsequent treatment.