Key Clinical Message
Radicular cysts in deciduous teeth can lead to root dilaceration in inherited permanent teeth, resulting in impacted permanent teeth. In this case, the root should leave the cortical bone and enter the cancellous bone through early orthodontic traction to obtain growth space, thereby increasing the root length and reducing the crown-root angle. Even in cases of curved teeth with short roots or bone fenestration following traction, the long-term postoperative effect of traction treatment may be ideal.