Abstract
BACKGROUND: Simple bone cysts (SBC) are intraosseous cysts devoid of an epithelial lining, asymptomatic and appearing in the jaw. In general, SBCs are discovered incidentally and tooth displacement or pathological fractures are very unusual. MATERIAL AND METHODS: This study reports a 16 years old man that presented an asymtomatic radiolucent unilocular lesion in the right ascending ramus. Differencial diagnosis included odontogenic keratocyst and dentigerous cyst. One surgical intervention was performed and consisted in the curettage of the bone walls. The lesion and some small samples of the bone wall were sent for the anatomopathological study. RESULTS: The anatomopathological exam confirmed the diagnosis of simple bone cyst. There was no evidence of recurrence after 6 months of follow-up and bone regeneration was almost complete. CONCLUSIONS: Curettage is the technique of choice for SBC treatment. Control visits are necessary to check the absence of postoperative complications and bone regeneration. Key words:Simple bone cyst, traumatic bone cyst, intraosseous cyst, curettage.