牙源性角化囊肿（OCT）是牙源性囊肿，是继神经根囊肿和滤泡囊肿之后最常见的颌骨囊肿。它们发生在下颌骨80%以上的病例中，尤其是在下颌骨和上升支的后部。OMC发生在所有年龄组，在生命的第二个至第三个十年以及50至70岁之间的患者中发病率较高（双峰年龄分布）。在被归类为牙源性肿瘤后，即真正的肿瘤，十多年来，自2017年以来，WHO再次将其列为牙源性囊肿。
Odontogenic keratocysts (OCT) are odontogenic cysts and are among the most common jaw cysts after radicular and follicular cysts. They occur in over 80% of cases in the mandible, especially in the posterior part of the mandible and ascending ramus. OMCs occur in all age groups, with a higher incidence in the second to third decade of life and in patients between 50 and 70 years of age (bimodal age distribution). After having been classified as an odontogenic tumor, i.e. a true neoplasm, for over a decade, the WHO has listed it as an odontogenic cyst again since 2017.
