Caries detection was classified using a 5-point Likert scale and statistically analyzed using kappa coefficient. All radiographs were observed by four observers.
Radiographs were saved in the above-mentioned two resolutions. Secondary caries were artificially created using a round bur and high-speed handpiece and the teeth were radiographed again. Intraoral digital radiographs were obtained of the teeth and saved in High and Super resolutions in a computer. A classic class II cavity was prepared on one proximal surface of each tooth and restored with composite resin. Materials and Methods: This diagnostic study was conducted on 40 extracted second human premolars. Background and Aim: Considering the importance of detection of secondary caries, the adverse consequences of false positive and false negative diagnoses and the gap of information on the diagnostic efficacy of digital sensors for detection of secondary caries, this in vitro study sought to compare the diagnostic efficacy of two different resolutions of radiographs obtained by photostimulable phosphor (PSP) plate intraoral sensors for detection of secondary caries in class II composite restorations using a standard technique.
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