Abstract
Introduction The aim of the present study was to test the accuracy of small-volume cone-beam computed tomography (CBCT) scanning in the detection of horizontal root fractures and to assess the influence of a metallic post. Methods Forty teeth were divided into four groups based on the presence of metallic posts and horizontal root fracture. The teeth were examined by small-volume CBCT scanning at 0.2-mm voxel resolution. Three observers analyzed the samples for the presence of a horizontal root fracture. Sensitivity and specificity were calculated. Results High values for accuracy (73%–88%) were obtained in the groups without a metallic post, and statistically significant differences were found when the group with a metallic post has been observed (55%–70%). Intraobserver agreement also showed statistically significant differences in the groups with a metallic post. Conclusions Small-volume CBCT scanning showed high accuracy in detecting horizontal root fracture without a metallic post. However, the presence of a metallic post significantly reduced the specificity and sensitivity of this examination.
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