Number of basis images effect on detection of root fractures in endodontically treated teeth using a cone beam computed tomography machine: an in vitro study.

Boulos Bechara, C. Alex McMahan, Ibrahim Nasseh, Hassem Geha, Elie Hayek, Georges Khawam, Michel Raad, Marcel Noujeim

Research output: Contribution to journalArticle

27 Scopus citations


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

Original languageEnglish (US)
Pages (from-to)676-681
Number of pages6
JournalUnknown Journal
Issue number5
StatePublished - May 2013


ASJC Scopus subject areas

  • Surgery
  • Oral Surgery
  • Pathology and Forensic Medicine
  • Dentistry (miscellaneous)
  • Radiology Nuclear Medicine and imaging

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