A Case of Odontoma Manifested by Delayed Eruption of Maxillary Right Primary Second Molar and Permanent First Molar

Abstract

An 8-year-old boy with delayed eruption of the maxillary primary second molar and permanent first molar presumably due to the presence of an odontoma in the corresponding region was treated by exposure and traction of the buried teeth, follwing removal of the tumor. We report here on the course of the treatment in detail, documentedw ith a series of intraoralp hotographs.
[Course of Treatment]
The radiopaque lesion was excised under local anesthesia, and was identified as a complex type of odontoma based on pathological examination. Two months after the removal of the tumor, the occlusal surface of the maxillary right primary second molar was found to be erupted. The Nance arch appliancew as placed on D⊥E 6and_the bracker was attached to the occlusals urface of the primary second molar.
Traction began, using a power chain. Subsequently, t he maxillalyr ight permanentf irst molar was surgicallye xposedu nder local anethesia. As a result, spontaneouse ruptiono f the maxillaryr ight permanent first molar was observed. Ten months after traction began, the maxillary right permanent first molar erupted.