2022 Volume 60 Issue 1 Pages 33-40
Supernumerary teeth in the anterior region affect the eruption of permanent teeth and are frequently encountered in clinical pediatric dentistry. Here, we report two rare cases of recurrence of impacted maxillary anterior supernumerary teeth at the same site.
Case 1:A 6-year-and-two-month-old boy presented with anomalous eruption of the permanent anterior teeth because of the recurrence of impacted supernumerary teeth. Previously, two supernumerary teeth had been extracted from the same site under general anesthesia. The eruption status of the anterior teeth was continuously evaluated. One impacted supernumerary tooth was observed at the same site 24 months after treatment. It was extracted under general anesthesia. Considering the difficulty in spontaneous eruption of the left central maxillary incisor, we performed fenestration and traction. Currently, the patient is under continuous management to attain proper occlusion of permanent teeth.
Case 2:A 4-year-and-eight-month-old boy presented with an erupted supernumerary tooth and confirmed torsion of the maxillary central incisor tooth germ. The tooth was extracted under normal conditions, and regular dental check-ups continued. Twenty-four months after the procedure, two impacted supernumerary teeth were found at the same site. These were extracted under general anesthesia. Following this, we observed spontaneous eruption of the permanent anterior teeth.
Although the occurrence of multiple supernumerary teeth has been extensively reported, there are few reports on supernumerary teeth recurring at the same site. Hence, we believe these two cases are extremely rare. In both cases, eruption of the permanent tooth was affected owing to the recurrence of supernumerary teeth two years after extraction from the same site. Therefore, it is necessary to confirm the eruption state of the teeth and obtain radiographs, as appropriate, to check the course over a long period of time even after extraction of supernumerary teeth.
