Assessment of spontaneous resolution of idiopathic bone cavity

• Published in: Journal of applied oral science Vol. 26; p. e20170288
• Main Authors: Battisti, Maíra de Paula Leite, Soares, Mariana Quirino Silveira, Rubira, Cássia Maria Fischer, Bullen, Izabel Regina Fischer Rubira de, Lauris, José Roberto Pereira, Damante, José Humberto
• Format: Journal Article
• Language: English; Portuguese
• Published: Brazil Faculdade De Odontologia De Bauru - USP 01.01.2018; University of São Paulo
• Subjects: Bone cysts; Bone remodeling; Dentistry; DENTISTRY, ORAL SURGERY & MEDICINE; Original; Panoramic radiography; Solitary cyst; X-rays; Bone cysts; Solitary cyst; Bone remodeling; Panoramic radiography; X-rays
• ISSN: 1678-7757; 1678-7765; 1678-7765
• DOI: 10.1590/1678-7757-2017-0288

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.