Radiographic and clinicopathologic study of odontogenic keratocysts

Abstract

We studied the radiographic characteristics of 71 odontogenic keratocysts (OKC) from 65 patients (44 males and 21 females). The peak incidence was in the third and fourth decades of life, and the occurrence in the mandible was 1.6 times more common than in the maxilla, with the mandibular molar-ramus region being the most common site. Radiographically 65% of the OKC appeared as unilocular radiolucencies with smooth margins, while 22% were unilocular with scalloped margins and 13% exhibited a multilocular appearance. Most of the OKC were lined by parakeratinized epithelium, but a few lined with orthokeratin were also observed.