Marsupialization of radicular cyst in a 9-year-old child: report of a case and review of the literature.

The following report describes the treatment of a 9-year-old child affected by a radicular cyst. The case was treated through the extraction of the impacted primary tooth followed by marsupialization. The residual cystic cavity was filled with a removable device in order to speed the healing process, facilitate the eruption of the permanent teeth and avoid orthodontic treatment. This technique is suitable as conservative treatment for patients affected by radicular cyst.