ODONTOGENIC-TUMORS - A 15-YEAR REVIEW FROM IBADAN, NIGERIA

Objective-To establish the incidence of odontogenic tumours in Nigeria we present our experience during the 15-year period 1980-94, Design-R etrospective review of histopathological specimens and case notes, Set ting-Teaching hospital, Nigeria, Subjects-128 Patients with histologic ally confirmed odontogenic tumours out of a total of 415 with tumours of the mouth and jan: Main outcome measures-Incidence, treatment, and recurrence rate, Results-Ameloblastoma (n = 21, 16%) and adenomatoid t umour (n = 16.13%), Patients' ages ranged from 8 to 75 years (mean 33 for ameloblastoma, 31 for fibromyxoma, and 22 for adenomatoid tumour), The corresponding male:female ratios were 3:2, 2:3, and 1:1, and maxi lla:mandible ratios 1:9, 1.1:1, and 2:1, The more radical the resectio n of ameloblastomas the less likely were they to recur, Conclusion-Fur ther research is required to explain the high incidence of odontogenic tumours in Nigeria, particularly ameloblastomas.