Abstract:

Objective To analyze the clinical presentations， radiographic features， operative findings， and pathological characteristics of one patients with unilateral maxillary and mandibular simple bone cysts （SBC）， and to enhance the clinicians’ recognition and treatment of this condition. Methods The clinical data， radiographic features， operative findings， pathological characteristics， clinical diagnosis， and treatment of a case with right-sided maxillary and mandibular SBC were collected，and the relevant literatures were reviewed. Results The patient， an 11-year-old male， presented with a clearly demarcated low-density image within the right maxillary and mandibular bones on panoramic tomography. There was no history of trauma， no subjective symptoms or facial asymmetry before treatment， and no positive signs of the specialist examination. The patient was diagnosed with right-sided maxillary and mandibular SBC based on the operative exploration and pathological diagnosis. The patient received the conventional curettage treatment and recovered well postoperatively without significant discomfort. A 6-month follow-up results showed good intraoral wound healing without swelling. The cone beam computed tomography （CBCT） results showed a smaller bone cavity with visible new bone trabeculae， indicating good osteogenesis. The patient was currently the under regular follow-up. Conclusion Unilateral maxillary and mandibular SBC do not present with characteristic clinical signs and radiographic features， which can be easily confused with the common maxillofacial diseases. A definitive diagnosis should be made by combining radiographic examination with surgical and pathological findings.

Key words: Traumatic bone cyst, Simple bone cyst, Solitary bone cyst, Curettage, Case report