An odontogenic tumor is a neoplasm of the cells or tissues that initiate odontogenic processes. Examples include: Adenomatoid odontogenic tumor, Ameloblastoma, a type of odontogenic tumor involving ameloblasts, Calcifying epithelial odontogenic tumor, Calcifying epithelial odontogenic tumor, Keratinising cystic odontogenic tumor, Odontogenic myxoma, Odontoma. In a total of 252 cyst specimens diagnosed, 79.76% were odontogenic cysts and 20.24% were nonodontogenic cysts. Among the odontogenic cysts most frequent lesions were radicular cysts (50.25%), followed by keratocysts (27.36%) and dentigerous cysts (22.39%).
Squamous odontogenic tumor is a benign odontogenic lesion that can be considered a hamartoma. Because of its presentation in the alveolar process, it is believed to originate (stimulus unknown) from rests of Malassez found in the periodontal ligament. It occurs in the mandible and maxilla with equal frequency and may be multiple. Recently In July 2014 in Mumbai, India, surgeons at Mumbai's JJ Hospital removed 232 tooth-like growths from a complex odontoma (A Type of Odontogenic Tumor) growing in the lower jaw of a 17-year-old boy. This is thought to be the largest ever number of such growths to be identified in a patient. Another exceptional case of compound odontoma was reported in November 2014, involving the extraction of 202 teeth from a 7-year old girl in Gurgaon, India.