A case of ameloblastoma which was found in 26-year-old female as maxillary tumor was reported. No recurrent evidence had not been observed for six years after the initial operation. Again she suffered from the gradual swelling of the cheek. The recurrent tumor was removed radically, and its histologic findings revealed the slight malignancy.
Clinical features of ameloblastoma, especially factor influencing the prognosis, and histologic classifications were discussed. It was concluded that the radical operation should be rather preferred to the conservative one in order to avoid the recurrence of this lesion.
