Simple bone cyst (traumatic cyst) .
- It is a solitary bony cavity that is not lined by epithelium (pseudocyst). At surgical excision, an empty cavity, or a cavity containing fluid or soft tissues is observed.
- Simple bone cyst does not cause signs or symptoms and most often is an incidental finding during radiographic examination.
- The majority of the cases occur in young people in their 2nd decade of life.
- Most common location: mandible, premolar/molar region.
- Radiographically is a unilocular, moderately well defined and moderately well corticated radiolucency.
- Computed tomography images show a slight buccal – lingual expansion of the cortical plates.
- A characteristic feature of the lesion is that it often inserts between the apices of the teeth (scalloping).
- There is rarely any resorption or displacement of the adjacent teeth. The teeth are usually vital.
- The prognosis is good. No recurrences occur after surgical excision.
