Dentigerous (follicular) cyst
- It is the second most common type of cyst in the jaws.
- It arises in the follicular region of unerupted permanent tooth.
- It develops after fluid accumulates between the remnants of enamel organ and the tooth crown.
- Most common sites: mandibular third molar, maxillary canine, maxillary third molar.
- Usually adolescents, 20-40 years old.st The lesion is usually asymptomatic.
- Unilocular radiolucency, well-defined, often corticated, associated with the crown of an unerupted and displaced tooth.
- Large cysts tend to expand the outer bone plate (usually on the buccal side).
- Eruption cyst is a term to describe a dentigerous cyst in children when it is situated in the soft tissues overlying the unerupted tooth.
- Ameloblastic changes may occur in the epithelial cyst lining.