title: Diagnostic Accuracy of Charge-coupled Device Sensor and Photostimulable Phosphor Plate Receptor in the Detection of External Root Resorption In Vitro.
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; however, 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.
authors.affiliation: Assistant Professor, Department of Oral & Maxillofacial Radiology, Maxillofacial Research Center,Islamic Azad University, Dental Branch, Tehran- Iran.
authors.forename: Shirin
authors.initials: S
authors.lastname: Sakhdari
authors.affiliation: Associate Professor, Department of Endodontics, Islamic Azad University, Dental Branch, Tehran- Iran.
authors.forename: Zohreh
authors.initials: Z
authors.lastname: Khalilak
authors.affiliation: Post-graduate Student, Department of Endodontics, Faculty of Dentistry, Mashhad University of Medical Sciences, Mashhad, Iran.
authors.forename: Elham
authors.initials: E
authors.lastname: Najafi
authors.affiliation: MS of Biostatistics, Department of Epidemiology and Reproductive Health at Reproductive Epidemiology Research Center, Royan Institute for Reproduc-tive Biomedicine, ACECR, Tehran, Iran.
authors.forename: Rezvaneh
authors.initials: R
authors.lastname: Cheraghi
keywords: Dental radiography; digital radiography; root resorption