Kiatanant Boonsirisethเกียรติอนันต์ บุญศิริเศรษฐSirichai Kiattavorncharoenศิริชัย เกียรติถาวรเจริญArada Thungratอารดา ถึงรัตน์Natthamet Wongsirichatณัฐเมศร์ วงศ์สิริฉัตรMahidol University. Faculty of Dentistry. Department of Oral & Maxillofacial Surgery2015-06-272017-01-052015-06-272017-01-052015-06-162015-01Kiattavorancharoen S, Boonsiriseth K, Thungat A, Wongsirichat N. The incidence of Oro-maxillofacial lesions (10 years) in the department of oral and maxillofacial surgery, Mahidol University: Ameloblastoma. M Dent J. 2015; 35(1): 21-30.0125-5614 (printed)https://repository.li.mahidol.ac.th/handle/123456789/1101Objective: To study incidence of ameloblastoma at the Oral and Maxillofacial Surgery Clinic, Mahidol University by analyzing patients’ pathological records for clinical, radiographic, and histological features from 2003 to 2012 Methods and methods: In this 10-year retrospective study, 88 histopathological records of patients with ameloblastoma treated at the Oral and Maxillofacial Surgery Clinic, Department of Oral and Maxillofacial Surgery, Mahidol University were selected. The records were analyzed for demographic data, chief complaint, site of lesion, clinical, radiographic, and histologic features to determine the incidence of ameloblastoma. Results: The overall incidence of ameloblastoma was 4.49% (88/1962 records). The age range of the patients with ameloblastoma was 8 and 81 years, with a mean age of 38 years. Ameloblastoma occurred more in males (56.82%) than females (43.18%). More than half of the patients (56.81%; 50 cases) presented with painless swellings. The mandible accounted for 88% (78 cases) of all the ameloblastoma. Most radiographs showed multilocular radiolucent lesions (60.23%; 53 cases). The most common histopathological features of ameloblastoma were mixed type (25%; 22 cases) and follicular type (23.86%; 21cases). Conclusions: This study showed 4.49% incidence of ameloblastoma. Most ameloblastoma occurred in males with a mean age of 38 years. The lesions often presented clinically as painless swellings and histologically exhibited mixed or follicular types.engMahidol UniversityAmeloblastomaIncidenceClinicopathologic featureHistopathologic featureRadiographic featureOpen Access articleวิทยาสารทันตแพทยศาสตร์มหิดลMahidol Dental JournalArticleFaculty of Dentistry Mahidol University