Objectives

  The objective of this study was to compare the accuracy of root fracture detection in endodontically treated teeth using scans acquired with a 180° rotation motion compared with a 360° after which the patient exposure and number of basis images are doubled.

  Methods

  Sixty-six roots were collected and decoronated. All were treated endodontically. One-half of the roots were fractured, resulting in 2 root fragments which were then glued together. The roots were placed randomly in 8 prepared beef rib fragments. Five reviewers independently reviewed the scans twice, at different times.

 Results

 The specificity of the 360° scan was significantly higher than the 180° scan doubling the basis images leads to a significant decrease in false-positive rates. Accuracy and sensitivity were not significantly different.

 Conclusions

  Only the specificity is improved by the increased rotation and doubling of images. The accuracy and sensitivity are not improved.

 Source: Oral Surgery, Oral Medicine, Oral Pathology, Oral Radiology

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