Although orthokeratinized odontogenic cyst (OOC) was first described as early as in 1927 by Schultz1, it was first considered to be a variant of OKC.
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However, with the World Health Organization (WHO) redefining OKC as a neoplasm and redesignating it as keratocystic odontogenic tumor (KCOT) in 2005, it became imperative that OOC had to be separated out from KCOT as a distinct entity.
This distinction was germane as the pathogenesis and the progression and prognosis of these two seemingly similar odontogenic cysts is diverse.
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Equally bewildering of OOC is its resemblance to a dentigerous cyst when it occurs around the crown of an impacted tooth.
This report presents a case of OOC in relation to an impacted mandibular third molar and discusses its possible pathogenesis.
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This is the report of a case of OOC in relation to an impacted mandibular third molar and critical review of this entity with an emphasis on its biologic characteristics is highlighted.
