Dentigerous Cyst Explained: Features, Radiology & High-Yield Exam Facts

🔎Dentigerous Cyst Made Easy

🧠 What Is a Dentigerous Cyst?

🔹️A dentigerous cyst is a developmental odontogenic cyst that forms around the crown of an unerupted or impacted tooth, with the cyst lining attached at the cementoenamel junction (CEJ).

🔹️It develops due to fluid accumulation between the reduced enamel epithelium and the tooth crown, leading to cyst formation.

🧬 Origin & Pathogenesis

Dentigerous cyst arises from:

• Reduced enamel epithelium, or

• Enamel organ remnants

⬆ Pressure from erupting teeth → fluid accumulation → cystic expansion.

This makes it one of the most common odontogenic cysts after radicular cyst.