Orthokeratinized Odontogenic Cyst of The Mandible: A rare case report

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Orthokeratinized Odontogenic Cyst of The Mandible: A rare case report

Khalik NIA, Ismail MRY, Ismail S: Orthokeratinized Odontogenic Cyst of The Mandible: A rare case report. Mal. J. Oral Maxillofac. Surg. 2020; 18: 27–31.

Abstract: Orthokeratinized odontogenic cyst (OOC) is a relatively rare developmental odontogenic cyst that occurs in the jaw bones. It was initially defined by Wright in 1981 as Orthokeratinized variant of Odontogenic Keratocyst (OKC) with distinct clinicopathological features. After undergoing a few revisions, OOC was finally considered its own entity as another type of odontogenic cyst in 2010. The OOC may appear as a multilocular radiolucency at the posterior mandible that may be suggestive of ameloblastoma or OKC and can be mistakenly diagnosed clinically as a Dentigerous Cyst due to involvement of an impacted tooth. As the recurrence rate of OOC is low, the choice mode of treatment is enucleation. The purpose of this article is to present a case of OOC arising in the right angle of mandible which is associated with an impacted lower right wisdom tooth.