Latar Belakang : Anomali gigi dapat menyebabkan berbagai masalah fungsional seperti, maloklusi, meningkatkan resiko karies, dan mengganggu estetika. Tingkat kejadian anomali gigi di Indonesia, masih belum banyak diteliti. Berdasarkan hal tersebut, maka penting untuk melakukan identifikasi untuk memperoleh data frekuensi distribusi anomali gigi pada radiograf panoramik di RSKGM FKG UI. Tujuan : Mendapatkan data frekuensi distribusi anomali gigi berdasarkan usia dan jenis kelamin pada radiograf panoramik di RSKGM FKG UI. Metode : Penelitian ini merupakan studi cross-sectional dengan total sampel 367 radiograf panoramik. Radiograf dievaluasi dan diinterpretasi oleh dua orang observer untuk mengidentifikasi anomali gigi sesuai klasifikasi berdasarkan anomali jumlah (gigi supernumerari), ukuran (makrodonsia dan mikrodonsia), erupsi (transposisi), serta morfologi (fusi, concrescence, geminasi, taurodonsia, dilaserasi, dens invaginatus, dens evaginatus, molar incisor malformation (MIM) , amelogenesis imperfecta, dentinogenesis imperfecta, dentin dysplasia, regional odontodisplasia, enamel pearl, talon cusp, dan congenital sifilis). Data usia, jenis kelamin, dan hasil interpretasi radiograf panoramik dicatat. Selanjutnya, dilakukan uji reliabilitas menggunakan uji Kappa untuk data kategorik dan uji ICC untuk data numerik. Hasil : Dari total sampel 367 radiograf pada rentang usia 6-79 tahun ditemukan 133 (36,2%) radiograf panoramik dengan anomali gigi, sebanyak 1-4 kasus pada setiap radiograf. Jumlah seluruh anomali gigi yang ditemukan adalah 395 kasus. Anomali gigi terbanyak ditemukan pada rentang usia 16-25 tahun. Berdasarkan klasifikasi, frekuensi distribusi anomali gigi yang ditemukan, secara berurutan yaitu anomali morfologi (63,15%), ukuran (32,33%), jumlah (18,05%), dan erupsi (7,52%). Jenis anomali morfologi gigi yang paling banyak ditemukan adalah dilaserasi (33,83%), anomali ukuran adalah mikrodonsia (32,05%), dan anomali jumlah adalah gigi supernumerari (23,64%). Berdasarkan jenis kelamin, frekuensi distribusi anomali gigi ditemukan lebih banyak pada laki-laki (45,83%) dibanding perempuan (31,87%). Anomali gigi yang paling banyak ditemukan pada laki-laki adalah gigi supernumerari, concrescence, dens invaginatus dan enamel pearl. Sedangkan, anomali gigi yang paling banyak ditemukan pada perempuan adalah makrodonsia, mikrodonsia, transposisi, geminasi, taurodonsia, dilaserasi, dens evaginatus, molar-incisor malformation (MIM), dan talon cusp. Kesimpulan : Prevalensi anomali gigi pada radiograf panoramik yang ditemukan pada penelitian ini cukup tinggi. Proporsi anomali gigi lebih tinggi ditemukan pada laki-laki dibandingkan perempuan.

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Background : Dental anomalies can affect various functional problems such as, malocclusion, increase the risk of caries, and aesthetics problem. Incidence rate of dental anomalies in Indonesia has not yet been widely studied. Based on this, it is important to identification to get data frequency distribution of dental anomalies on panoramic radiographs at RSKGM FKG UI. Objective : To get data frequency distribution of dental anomalies based on age and gender in panoramic radiograph at RSKGM FKG UI. Method : This study is a cross-sectional study with total sample 367 panoramic radiographs. Radiographs were evaluated and interpreted by two observers to identify dental anomalies according to classification anomaly by number (supernumerary teeth), size (macrodontia and microdontia), eruption (transposition), and morphology (fusion, concrescence, gemination, taurodontisme, dilaceration, dens invaginatus, dens evaginatus, molar incisor malformation (MIM) , amelogenesis imperfecta, dentinogenesis imperfecta, dentin dysplasia, regional odontodisplasia, enamel pearl, talon cusp, and congenital syphilis). Data on age, gender, and interpretation of panoramic radiographs result were recorded. Reliability test were performed using Kappa test for categoric data and ICC test for numeric data. Result : From a total sample of 367 radiographs in the age range 6-79 years, 133 (36.2%) panoramic radiographs with dental anomalies were found, 1-4 cases in each radiograph. The total of all dental anomalies in were 395 cases. Based on classification, frequency distribution of dental anomalies found, respectively, are anomaly of morphology (63,15%), size (32,33%), number (18,05%), and eruption (7,52%). The most common type of anomaly of morphology was dilaceration (33,83%), anomaly of number was microdontia (32,05%), and anomaly of number was supernumerary tooth (23,64%). Based on gender, frequency distribution of dental anomalies were found higher 45,83% in male than 31,87% in female. The most common dental anomalies found in men are supernumerary tooth, concrescence, dens invaginatus and enamel pearl. Meanwhile, the most common dental anomalies found in women are macrodontia, microdontia, transposition, gemination, taurodontisme, dilaceration, dens evaginatus, molar-incisor malformation (MIM), and talon cusp. Conclusions : The prevalence of dental anomalies on panoramic radiographs found in this study is quite high. A higher proportion of dental anomalies was found in men than women.