- Benign fibro-osseous neoplasm. It is difficult to differentiate the calcified tissue within the lesion between bone and cementum.
- Most commonly in the third and forth decade.
- It is usually located in the premolar/molar area in the mandible.
- Three stages of development: radiolucent – mixed – radiopaque.
- In early stage it appears as unilocular, well-defined radiolucency.
- With time radiopaque foci develop within the lesion.
- When radiopaque is usually surrounded by a thin radiolucent halo.
- Generally asymptomatic, unless they become large enough.
- It can cause displacement of the adjacent teeth. Root resorption is uncommon.
Cemento-Ossifying fibroma (2nd stage)
- Calcifying Epithelial Odontogenic Tumor (CEOT)
- Calcifying odontogenic cyst (Gorlin cyst)
- Fibrous dysplasia (mixed)