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.