Avaliação da presença de frenestrações e deiscências em pacientes classe I e III por meio de tomografia computadorizada de feixe crônico: estudo transversal

Abstract

Fenestrations and dehiscences are bone resorptions that require great care by the orthodontist at the time of orthodontic movement. Cone – beam computed tomography scans are the best option for the correct diagnosis of such defects. The aim of this research was to verify the presence of fenestrations and dehiscences in patients with Class I and III from the second molar to the second molar on the opposite side, upper and lower, by cone – beam computed tomography of the particular collection of a radiological clinic. The samples were divided into 25 class I and 25 class III patients, than an orthodontist and a radiologist, in agreement, performed the scans to determine the presence or absence of bone defects, 15 days later 30 % of the sample was reevaluated. The reproducibility of the analysis was tested using the Kappa test and the null hypothesis with test χ2 resulting in a statistically significant difference between the class I and III groups, a higher prevalence of dehiscences in the maxilla of class I patients and a greater presence of fenestrations in the maxilla of patients class III.