Tratamento conservador de queratocisto odontogênico em mandíbula - relato de caso clínico.

Abstract

Introduction: the odontogenic keratocyst is a pathological lesion of the stomatognathic system classified in 2017 by the WHO as a cyst, originating from the cellular remains of the dental lamina. In most cases, QO is asymptomatic with a slight predilection for males, occurs more frequently in the mandible, being more common in the posterior region of the body and mandibular branch. Despite being a benign lesion and having slow growth, it has high spinal infiltration, and its aggressive behavior is evidenced by adjacent bone erosion. It has a variable recurrence rate according to the surgical treatment adopted, with no consensus in the literature for the adoption of the ideal treatment. Objective: to report the surgical approaches adopted in the treatment of a mandibular odontogenic keratocyst, aiming to eradicate the lesion. Case report: female patient, 56 years old, complaining of maladjustment of the mandibular dental prosthesis. Upon clinical examination, the patient had a bulging bone in the anterior region of the mandible, with bone deficiency on the buccal surface, as well as a fistula in that same location. Due to the conditions presented, the surgical procedure adopted was incisional biopsy and marsupialization at the same surgical time. The histopathological analysis confirmed the diagnostic hypothesis of odontogenic keratocyst, which was enucleated after one year and six months of follow-up. Conclusion: Marsupialization, followed by enucleation with peripheral osteotomy, proved to be a safe alternative for the removal of the odontogenic keratocyst, promoting a satisfactory recovery of the patient, with consequent bone neoformation and absence of recurrence.