title: Accuracy of Cone-beam Computed Tomography and Periapical Radiography in Endodontically Treated Teeth Evaluation: A Five-Year Retrospective Study.
abstract: BACKGROUND
  This study aimed to evaluate the accuracy of two imaging methods in detecting the apical pathology in endodontically treated teeth.
  
  
  METHODS
  A clinical examination from a sample of 156 teeth of patients treated by students of masters in endodontics at the Care Center of the Faculty of Dentistry at St. Joseph University, Beirut was done after 5 years of follow-up. Periradicular digital radiographs and a cone-beam computed tomography (CBCT)scans were taken and analyzed statistically using both the Exact Fisher tests and McNemar tests.
  
  
  RESULTS
  The prevalence of lesions was significantly higher with CBCT (34.8%), whereas for digital radiography (13.8%). The CBCT was revealed more precise to identify periapical lesions. As for the clinical success, the rate was 82.5%.
  
  
  CONCLUSIONS
  Within the limitations of the present study, CBCT was more reliable in detecting periapical lesions compared with digital periapical radiographs.
authors: Resident, Department of Endodontics, St. Joseph University, Beirut, Lebanon.
authors: Anastasia
authors: A
authors: Saidi
authors: Professor and Head, Department of Endodontics, St. Joseph University, Beirut, Lebanon.
authors: Alfred
authors: A
authors: Naaman
authors: Assistant Professor, Department of Endodontics, St. Joseph University, Beirut, Lebanon.
authors: Carla
authors: C
authors: Zogheib
keywords: Cone-beam computed tomography; endodontic treatment; periapical periodontitis; periapical radiograph