Abstract
Objective: To compare the accuracy of digital radiography and CBCT for the diagnosis of vertical root fractures in single root teeth. Material and Methods: For this descriptive-analytic study, 50 non-fractured, single-root teeth were selected. The teeth were randomly divided into a control and an experimental group (25 teeth in each group). The teeth in the control group did not have vertical root fractures. In the test group, after preparing the access cavity, the root canal was cleared and loosened up to No. 80 file, then a vertical root fracture was created by one of the K-Reamers Nos. 90-130.The images were prepared by CBCT radiography in axial and cross-sectional slices and in digital radiography with PSP sensors at mesial, distal, and parallel angles. The Chi-square test was used to express the correlation of variables. Results: In the diagnosis of vertical root fractures, the sensitivity of CBCT in the axial section was 32% and in the cross-sectional slice it was 20%, whereas the specificity in both the sections was 100%. The sensitivity of the digital radiography in detecting vertical root fractures for parallel, mesial, and distal angles was 38%, 16%, and 24%, respectively. Conclusion: According to this study, the sensitivity, specificity, and accuracy of digital radiography and CBCT were not significantly different.
Highlights
The vertical root fracture is a fracture that extends from the root apex to the crown of the topline longitudinally [1] and the fracture line can either be complete or incomplete [2,3]
The accuracy of the Cone-Beam Computed Tomography (CBCT) radiography in diagnosis of the vertical root fractures was reported to be higher than digital radiography, only the parallel and mesial angles were used for preparing the digital images [15]
The sensitivity test indicates that the result of digital radiography or CBCT will detect a major percent of actual fractures positive
Summary
The vertical root fracture is a fracture that extends from the root apex to the crown of the topline longitudinally [1] and the fracture line can either be complete or incomplete [2,3]. Digital radiography shows a two-dimensional (2D) image of anatomical structures that cause a superimposition of structures For this reason, if the x-ray does not penetrate the fracture line, the fracture may not be detectable. The accuracy of the CBCT radiography in diagnosis of the vertical root fractures was reported to be higher than digital radiography, only the parallel and mesial angles were used for preparing the digital images [15]. There was no relevant study for the northwest population of Iran, and considering that race characteristics influence the type and structure of the teeth, the amount and type of fracture is expected to be different too Given all these reasons, in this study, by using a dissimilar CBCT device to those in previous studies and by changing the imaging angle, we compared the sensitivity and specificity of this device with digital radiography
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