Clinicostatistical study or treatment of ameloblastoma

Abstract

The purpose of this study was to investigate the treatment of 190 cases of ameloblastoma from 1966 to 1994 of our department. The statistical results of age, sex and region were almost the same as those of other investigators. Thirty-five of 43 (81.4 %) cases underwent enucleation in the 1960s, but the 16 of 27 (59.3%) cases underwent partial resection of the mandible in the 1990s. The defect of mandible has been reconstructed by illiac bone grafting since 1968, but it has been grafted with a mixture of illiac bone and PCBM (particulate cancellous bone and marrow) since 1975. Grafting of the defect of inferior alveolar nerve with the great auricular nerve has been performed of out department since 1977. Recently, a pull-through technique of the inferior alveolar nerve bundle has been used at our department. If the reconstruction method of the mandible and nerve has been established, it would be possible to operate radically and positively. Relapse occurred in 17 cases after the first treatmen of enucleation. The first treatment of ameloblastoma is very important it is thought that the operation must be as radical as possible. It seems necessary to observe progress and perform follow-up in case of ameloblastoma for more than 10 years because, there was recurrence in one case 9 years 4 months after the first operation.
The fact that about 75% of the patirnts with amelo blastoma did not undergo follow-up is a problem requiring consideration.