ABSTRACT
Abstract Idiopathic Bone Cavity (IBC) or Simple Bone Cyst (SBC) is a non- epithelialized bone cavity with serosanguinous fluid content or empty. There is a literature debate regarding its pathogenesis that remains unclear. The main treatment option is the surgical exploration, although there are successful cases described in the literature in which just a follow-up with clinical and radiographic evaluation was performed. Objective This study aimed to assess the spontaneous resolution of idiopathic bone cavity untreated by surgery. Material and Methods Twenty-one patients diagnosed with surgically untreated IBC were submitted to a follow-up protocol modified from Damante, Guerra, and Ferreira5 (2002). A clinical and radiographic evaluation was performed in 13 patients (13/21), while eight patients (8/21) were only radiographically evaluated. Three observers evaluated the panoramic radiographs of 21 patients and the Kappa test was performed by intra and inter-examiners. Inductive and descriptive statistics were applied to the results. Results Only one patient had a positive response to palpation and percussion of the teeth in the cyst area. Most of the cysts evaluated were rated as 3 (lesion "in involution"), 4 (lesion "almost completely resolved"), or 5 ("completely resolved"). Conclusions We observed progressive spontaneous resolution of IBC. Most cysts were found in the recovery process in different follow-up periods. Patient's follow-up, without surgery, may be considered after the diagnosis based on epidemiological, clinical, and radiographic features of the lesion.
Subject(s)
Humans , Male , Female , Child , Adolescent , Adult , Young Adult , Remission, Spontaneous , Bone Cysts/pathology , Mandibular Diseases/pathology , Time Factors , Bone Cysts/physiopathology , Bone Cysts/diagnostic imaging , Radiography, Panoramic , Mandibular Diseases/physiopathology , Mandibular Diseases/diagnostic imaging , Sex Factors , Age Factors , Cone-Beam Computed TomographyABSTRACT
Geralmente diagnosticado em radiografias de rotina, o cisto ósseo simples ocorre com pouca freqüência. A etiologia é desconhecida e o diagnóstico diferencial pode estar associado com cisto dentígero, tumor odontogênico ceratocístico, tumor odontogênico adenomatóide, ameloblastoma e granuloma central de células gigantes. O tratamento é cirúrgico, através de perfuração do osso cortical. Na maioria dos casos, de uma cavidade vazia, sem qualquer cápsula ou revestimento epitelial, são encontrados, mas pode ter conteúdo líquido. A perfuração do osso cortical mandibular provoca uma resposta que resulta com a reparação óssea da cavidade vazia. Este artigo analisa o assunto e apresenta dois casos desta entidade e discute os possíveis fatores interferentes no processo de cura da lesão... (AU)
Usually diagnosed in routine radiographs, the simple bone cyst occurs infrequently. Etiology is unknown and differential diagnosis has to be made with dentigerous cyst, keratocystic odontogenic tumor, adenomatoid odontogenic tumor, ameloblastoma and central giant cell granuloma. Treatment is surgical, by perforating the cortical bone. In most cases an empty cavity, without any capsule or epithelial covering, is encountered, but it may have a liquid content. Perforation of the mandibular cortical bone elicits a response that results in bone repair of the empty cavity. This article reviews the subject and presents two cases of this entity and discusses the possible factors that could interfere in healing course... (AU)