Traumatic bone cysts are non-epithelial cavities of the jawbones. Expansion of the lesion towards the buccal cortical bone may cause intraoral and extraoral swelling. The most common site is the mandible corpus region. It is generally diagnosed by routine radiographic examination. The absence of histological material in the cavity prevents the histological diagnosis. Generally, it is recommended to open the cavity surgically and curettage all the walls in the treatment. In our case, surgical approach has been explained and the post operative one year follow up reported.
Key words: Bone cyst, Mandible ramus, Marsupialization treatment, Bone cyst, Clot formation