Odontogenic Tumors : A 5 Years Retrospective Epidemiological and Pathological Study

  • Prabir Hazarika Jorhat Medical College, Jorhat, Assam
  • Rasadhar Deka Jorhat Medical College, Jorhat, Assam.
  • Manoj Kumar Sharma Alcare Diagnostic and Research Centre, Guwahati, Assam.
Keywords: Odontogenic, Ameloblastoma, Ossifying, Fibroma, Keratocystic


Background: This is a 5 years retrospective study in a referral centre to evaluate the epidemiological and pathological features of odontogenic tumors and to compare it with those of other studies in the literature. Methods and material: A record of 75 odontogenic tumors are retrieved from the archive. This is a 5 year retrospective study from December, 2011 to November 2016 in a referral centre . A total 75 cases of odontogenic turors have been retrieved from the archives. Their epidemiological and pathological profiles are noted and compared to other studies.Result: It is found that odontogenic tumors are mostly seen in 2nd to 5th decade and with average age of presentation of 28.7 years. Males are affected 1.14 times more frequently than females and mandible is involved 3 times more frequently than maxilla. Only 1 (1.3%) malignant odontogenic tumor is found. Solid multicystic ameloblastoma is the most common (34.7%) histological type followed by ossifying fibroma (20%) and Keratocystic odontogenic tumor (13.3%). Ameloblastomas are most commonly seen in 2nd to 4th decade with a peak in 3rd decade and average age of 27.3 years. They show slight male predominance (male to female ratio M:F ratio of 1.3:1) and marked predilection for mandible (9 times). Average tumor size is 5.3 cm . Ossifying fibromas show a wide age of distribution of 6 year - 60 year with mean age of 32.8 year. It show slight female predominance with M:F ratio of 0.87:1 and predilection for mandible. Average tumor size is 3.8cm. Keratocystic odontogenic tumors also show a wide age of distribution from 2nd to 6th decade with average age of 35 year. Male are affected 2.3 times more frequently than female and mandible is involved 3.5 times more commonly than maxilla. Average size of the tumors is 3.36 cm. Conclusion: Most of the findings in the present study are consistent with those of many other studies conducted in India, other Asian countries and Africa. However, the major difference of the present study with all other studies is the high frequency of ossifying fibromas in the present study which is not seen in any other previous study. DOI:10.21276/APALM.1563

Author Biographies

Prabir Hazarika, Jorhat Medical College, Jorhat, Assam
Assistant Professor, Department of Pathology, Jorhat Medical College, Jorhat, Assam.
Rasadhar Deka, Jorhat Medical College, Jorhat, Assam.
Associate Professor, Jorhat Medical College, Jorhat, Assam.
Manoj Kumar Sharma, Alcare Diagnostic and Research Centre, Guwahati, Assam.
Chief Pathologist and Laboratory Director, Alcare Diagnostic and Research Centre, Guwahati, Assam.


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Original Article