A Case of Hypercementosis Found in the Maxillary Central Incisor Adjacent to the Cleft Fissure

Abstract

Hypercementosis is a non-neoplastic lesion that frequently occurs in the molar teeth, and is a rare disease even among radiopaque lesions that occur in the jaw bone. We report a case of eruption disorder due to hypercementosis around the cervical central incisor adjacent to the cleft fissure of a patient with cleft lip and alveolus.

The patient was an 11-year-old boy. We received a request from an orthodontist for detailed inspection due to delayed eruption of the upper left central incisor. On dental CT scans, we identified opaque layers with unclear margins following the cervical upper left central incisor, and the patient was diagnosed with hard tissue. We decided that the hard tissue would need to be cut out to improve the eruption and torsion of the upper left central incisor. Therefore, we cut out the hard tissue under general anesthesia when the patient was 11 years and 6 months old. Eruption of the upper left central incisor was observed one month after the treatment, and there was improvement in the torsion by 12 years and 2 months of age.

As there have been no reports about hypercementosis of the anterior maxilla, it is suggested that the present case took place based on a different mechanism of onset compared with other cases reported previously.