Dental follicle is radiographically characterized by a radiolucent area surrounding the crown of an unerupted tooth, which plays a key role in the development and eruption of teeth(1). Follicles with a radiolucent area larger than 2.5 mm in size should be evaluated to rule out possible cysts or tumors(2).
Dentigerous cysts, also called follicular cysts, are slow-growing benign and non-inflammatory odontogenic cysts that are thought to be developmental in origin. On imaging, they usually present as a well-defined and unilocular radiolucency surrounding the crown of an unerupted or impacted tooth within the mandible.
Epidemiology
Dentigerous cysts are the second most common odontogenic cysts after those related to the roots of the teeth (periapical cysts) 3 Clinical Presentation
Typically, dentigerous cysts are painless and discovered during a routine radiographic examination, however, they may be large and result in a palpable mass Pathology
A dentigerous cyst is formed by the hydrostatic force exerted by the accumulation of fluid between reduced enamel epithelium and the tooth crown of unerupted Radiographic Features
Dentigerous cysts are frequently identified on OPGs Treatment and Prognosis
Treatment usually involves removal of the entire cyst and the associated unerupted tooth. In patients with a very large lesion or who are unfit medically Differential Diagnosis
When small, it is difficult to differentiate a dentigerous cyst from a large but normal dental follicle 5,6. When larger 