Odontogenic Keratocyst

Odontogenic Keratocyst


                                ODONTOGENIC KERATOCYST

  • OKC arises from residual strands of epithelium from dental lamina.
  • Forms a cyst in the jaw in tooth bearing area.
  • Lined by keratinized squamous epithelium.
  • It is locally aggressive and high rate of recurrence
  • OKC –> ameloblastoma –> malignant lesion (SCC)

Clinical features-

  • Patient between 10- 40 years are affected.
  • Common in males.
  • Site 3rd molar tooth (posterior mandible)
  • Pre malignant jaw cyst

Treatment-

  • Osteotomy with enucleation with chemical cautery (Cornoy’s sign)
  • Recurrence rates for inadequate removed lesions can reach 60%.

Exam Important

Clinical features-

  • Patient between 10- 40 years are affected.
  • Common in males.
  • Site 3rd molar tooth (posterior mandible)
  • Pre malignant jaw cyst
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