Multiple supernumerary teeth usually occur with a syndromic disease, and there are very few occurrences in non-syndromic cases. They frequently occur in the premolar region, while they are rare in the midline region of the maxilla. We report a case of four supernumerary teeth in both the midline region of the maxilla and premolar region of the mandible. The patient was a 12-year-old boy referred to our hospital for examination in July 2020. He had no syndromic disease nor familial tendency. According to panoramic x-ray, eight supernumerary teeth were observed in the midline region of the maxilla and premolar region of the mandible.
There were four supernumerary teeth in the midline region of the maxilla, and two in each side of the premolar region of the mandible. All eight supernumerary teeth were extracted under general anesthesia. The roots of the four teeth extracted from the midline region of the maxilla were complete. In contrast, the roots of the four teeth extracted from the lower premolar region were incomplete. There was no appearance of new supernumerary teeth in the eight months following surgery.
