1. Introduction
Radicular cysts in deciduous teeth are commonly caused by dental pulp
necrosis due to caries or trauma, which may affect the development and
normal eruption of inherited permanent teeth[1].
In severe cases, it can cause root dilaceration of inherited permanent
teeth, leading to impaction of those teeth[2]. In
cases of radicular cysts in deciduous teeth, permanent tooth germs
should be preserved whenever possible. Extraction of the affected
deciduous teeth often allows smaller radicular cysts to resolve
spontaneously. However, large radicular cysts can be decompressed and
drained to protect the permanent tooth germs[3,4].
For impacted permanent teeth or root dilaceration, orthodontic traction
is carried out at the early stage to induce normal eruption of permanent
teeth and maintain the integrity of the
dentition[5]. In this case report, we presented an
11-year-old boy who underwent decompression and drainage of a radicular
cyst in deciduous teeth, followed by early orthodontic traction of
inherited permanent teeth with root dilaceration. After treatment, the
radicular cyst in deciduous teeth healed, the orthodontic traction of
inherited permanent teeth was in place, and favorable treatment outcomes
were achieved.