Abstract
We experienced a case of a completely impacted left mandibular second primary molar in a 3year 10-month old boy. We applied marsupialization and traction treatment using a magnet. In this case, the following clinical results were obtained.
1) It was found that a lower second primary molar was not erupted and an upper second molar extruded from an initial oral examination. X-ray showed that left mandibular second primary molar was complete. The mesial and distal root apex of the tooth was curved, but was not adhered. It was shown that the tooth germ of the left mandibular premolar, which was a successor to the impacted tooth, was not located.
2) After the observation period of six months from the initial visit, marsupialization and traction treatment were applied.
3) Two months later, after traction treatment, the occlusal surface of the impacted tooth was exposed.
4) After this period, exposure of impacted tooth was checked and the occlused balance maintained. It is suspected that the tooth germ of the left mandibular premolar was located from X-ray examination.
