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Introduction: Ameloblastoma is a benign but locally aggressive odontogenic tumour of the jaw. 

Objective: The aim of the study was to assess the occurrence of ameloblastoma and its types based on clinical, histopathological, and radiographic parameters.

Materials and Method: A retrospective chart review was conducted in 596 recorded cases of odontogenic tumours. The pattern and occurrence of ameloblastoma were assessed in the files from 2011 to 2016 of department of oral and maxillofacial surgery, Dhaka Dental College Hospital, Bangladesh. Study was done after approval from ethical committee. Data were collected considering parameters such as age, sex, and site of occurrence as well as clinical, radiographic, and histopathological types. Descriptive data were observed and analysed using SPSS v.20 software.

Result: The occurrence of ameloblastoma was seen in 250 (41.95%) cases out of 596 odontogenic tumours. Ameloblastoma was seen more in male (154, 61.60%). The highest occurrence of ameloblastoma was seen in third (80, 32%) decade of life. Posterior mandible was the most common site of occurrence (196, 78.40%) and anterior maxilla (2, 0.80%) the least common. Solid variant of ameloblastoma (159, 63.60%) was clinically most common. Histologically, follicular (94, 37.60%) was the most common variant. Radiographical analysis revealed, multilocular (222, 88.80%) as more common variant with the multilocular, soap bubble (134, 53.60%) as most common followed by spider web and honey comb
appearances.

Conclusion: Ameloblastoma is a common odontogenic tumour in Bangladeshi population. A multicentric
study with larger sample size and long-term evaluation may truly elucidate the finding of this study.

Ameloblastoma; histopathology; odontogenic tumour; occurrence.