- Rare benign neoplasm. Most commonly in the second and third decade of life.
- Most common location: premolar / molar region of the mandible.
- Usually it is attached to the root of the affected tooth. Tooth displacement and root resorption are common findings.
- In 50% of cases there is pain and swelling.
- Three stages of development: radiolucent - mixed - radiopaque.
- When radiopaque is usually surrounded by a thin radiolucent halo.