Cemento-Ossifying fibroma (1st stage)


  • 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.