BackgroundAmeloblastoma is a neoplasm classified as a benign epithelial odontogenic tumor of the jaws, grow slowly and are locally invasive. The aim of the present study was to investigate the incidence, treatment, and complication of patients with ameloblastoma in East-Indonesia during six years retrospective study.Material and MethodsThis retrospective study included 84 patients who were diagnosed with ameloblastoma from 2011 to 2016. There were 56 patients with treatment data available. Data from each patient, including gender, age, histologic type, the size of the tumor, radiologic form, tumor location, type of treatment, and complication were reviewed and analyzed retrospectively.ResultsFourteen patients were diagnosed with unicystic ameloblastoma (25%), thirty two patients with multicystic follicular ameloblastoma (57%) and ten patients with an unspecified multicystic ameloblastoma (18%). A total of about 35 patients were treated conservatively (62.5%) and 21 patients were treated radically (37.5%). Swelling was present as a pre-operative complication in all 56 cases (100%). There were no complaints concerning speech.ConclusionsThe majority findings of the histologic type were multicystic ameloblastoma and their location were in the mandible. Most ameloblastoma were treated conservatively and reconstructions were made with only titanium plates and not bone graft. Key words:Ameloblastoma, epidemiology, east Indonesia.

Ameloblastoma is an odontogenic tumor occurring mostly in mandible. Objective: the purpose of the study was to find out the distribution and frequency of the most common histopathological type and pattern of ameloblastoma, the percentage of ameloblastoma according to gender and histopathological types of ameloblas-toma related to gender. Methods: This research was a quantitative analysiswith descriptive retrospective design. This study used secondary data taken from medical records at Oral and Maxillofacial Surgery Clinic of Cipto Mangunkusumo General Hospital Jakarta in the period of January 2002-July 2008. The relationship between age or gender and histopathological types of ameloblastoma was statistically assessed. Results: From data of ameloblastoma patients that have been collected as many as 66 cases; it was found that 31-50 years old age group had the highest percentages of occurrence among other age groups that was 53% from all cases. There are slight differences between women and men in ameloblastoma cases. The incidence was higher in women (37 cases, 56.1%) than in men (29 cases, 43.9%) and the histopathological type found most often was plexiform type as many as 31.8% from all cases. Conclusion: Ameloblastoma presented in adult period, more frequent in women than men, and were predominantly plexiform. ABSTRAK Profil ameloblastoma dari sebuah penelitian retrospektif di Jakarta, Indonesia. Ameloblastoma adalah tumor odontogenik yang sering terjadi pada mandibula. Tujuan: Penelitian ini bertujuan untuk mengetahui distribusi frekuensi dari tipe dan pola histopatologis ameloblastoma yang paling umum, persentase timbulnya ameloblastoma menurut jenis kelamin, dan tipe histopatologis ameloblastoma terkait jenis kelamin. Metode: Penelitian ini merupakan penelitian kuantitatif dengan desain retrospektif deskriptif. Penelitian ini mengguna-kan data sekunder yang diperoleh dari rekam medik klinik Bedah Mulut di Rumah Sakit Umum Cipto Mangun-kusumo Jakarta, pada periode Januari 2002-Juli 2008. Penelitian ini dilakukan untuk mengetahui frekuensi tipe histopatologis. Hubungan antara usia atau jenis kelamin dan tipe histopatologi ameloblastoma dianalisis secara statistik. Hasil: Dari data 66 kasus pasien ameloblastoma yang terkumpul, ditemukan bahwa kelompok umur 31-50 tahun memiliki persentase kemunculan terbesar dibanding kelompok umur lain, yaitu 53%. Terdapat sedikit perbedaan antara laki-laki dan perempuan pada kasus ameloblastoma. Perempuan terdapat pada 37 ka-sus (56,1%), lebih banyak dibandingkan laki-laki sejumlah 29 kasus (43,9%) dan tipe histopatologis yang ter-banyak ditemukan adalah plexiform sebanyak 31,8%. Simpulan: Ameloblastoma terjadi pada periode dewasa, lebih sering pada perempuan dibandingkan laki-laki, dan didominasi tipe plexiform.