TRATAMENTO CIRURGICO DE CERATOCISTOS ODONTOGÊNICOS: RELATO DE CASO CLÍNICO

Introduction: The keratocyst or keratocyst is an odontogenic tumor characterized as a lesion that affects the maxillary and mandibular regions. It is considered a benign lesion, reaching a prevalence of 3% to 11% among all odontogenic cysts, resulting in major bone loss. It can be asymptomatic and is usually diagnosed through routine radiographs or histopathological findings. Objective: To present a clinical case concerning the diagnosis and surgical treatment of an odontogenic keratocyst in the anterior mandibular region. Clinical case: Male, normosystemic, melanodermic patient. An increase in extraoral volume was observed on the right side of the face in the anterior region of the mandible. Panoramic radiography revealed well-defined, unilocular radiolucent images in the areas of the right lower first premolar, left lower third molar and bilateral upper third molars. On intraoral physical examination, bone bulging was observed in the region of the tooth in question. A computerized tomography scan was then requested, in which extensive expansive bone lesions were detected. Marsupialization and local decompression of the two upper lesions and the lower right lesion were performed, detecting the presence of liquid content. Firstly, an incisional biopsy was carried out and a decompression drain was installed in the three lesions. The histopathological report was of an odontogenic keratocyst. The decompression device remained in place for 30 days in the lower right lesion and approximately 15 days in the upper lesions, showing a significant reduction in the lesions. The lower right lesion was then enucleated. The 6-month post-operative image showed bone formation with no signs of recurrence. Conclusion: The proposed treatment proved to be effective in treating odontogenic keratocysts, but follow-up imaging is extremely important in view of the possibility of recurrence.