Author/Authors :
Sakhdari, Shirin Department of Oral & Maxillofacial Radiology - Maxillofacial Research Center - Islamic Azad University - Dental Branch, Tehran , Khalilak, Zohreh Department of Endodontics - Islamic Azad University - Dental Branch, Tehran , Najafi, Elham Department of Endodontics - Faculty of Dentistry - Mashhad University of Medical Sciences, Mashhad , Cheraghi, Rezvaneh Department of Epidemiology and Reproductive Health at Reproductive Epidemiology Research Center - Royan Institute for Reproduc-tive Biomedicine - ACECR, Tehran
Abstract :
Background and aims. Early diagnosis of external root resorption is important for accurate treatment. The purpose of this study was to compare the efficacy of a charge-coupled device (CCD) sensor and a photostimulable phosphor (PSP) plate receptor in the diagnosis of artificial external root resorption.
Materials and methods. In this diagnostic in-vitro study, 40 maxillary incisors were mounted in a segment of dry bone and preliminary radiographs were obtained using CCD and PSP sensors. Artificial resorption cavities were produced on the middle-third in half of the samples and on the cervical-third in the other half on the buccal root surfaces. Radiographs were repeated and images were evaluated. Data were statistically analyzed using chi-square and diagnostic tests.
Results. There were no significant differences between the two sensors in the sensitivity (p=0.08 and 0.06) and specificity (p=0.13) for the diagnosis of resorption in both root areas. The overall accuracy of CCD was higher than PSP sensor; how-ever, the difference was not statistically significance (p>0.05).
Conclusion. CCD and PSP sensors chosen for the present study produced similar results in diagnosing simulated external root resorption.
