Paradental cyst
A cyst of odontogenic origin commonly located subgingivaly on buccal aspect of an erupted mandibular molar (bifurcation cyst) or the distal surface of a partially erupted mandibular third molar.
▪ Also known as Criag cyst.
▪ Buccal bifurcation cyst.
Clinical features
▪ Cyst is inflamed but tooth is vital is present at bifurcation area usually associated with mandibular molar which has cervical enamel projection.
▪ It can also be present distally of third molar which is anatomically impeded by ascending ramus.
▪ Sometimes paradental cyst give rise to Garres osteomyelitis.
Radiographic features
▪ Buccal bifurcation cyst cannot be visible on routine radiograph.
▪ But cyst present distally of third molar can be visible on periapical panoramic radiograph.
Histopathology
▪ Epithelium is non keratinized squamous eptihelium
▪ Usually infiltrated by neutrophils
▪ Connective tissue is chronically inflamed
▪ It has resemblance with dentigerous cyst
Treatment
▪ Usually treated by surgical enucleation.
▪ Molar is often extracted during surgery.
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