Diagnostic accuracy of Digora Optime storage phosphor plates for proximal subsurface demineralization: effect of different exposure times

• Published in: Oral surgery, oral medicine, oral pathology and oral radiology oral medicine, oral pathology and oral radiology, 2012-11, Vol.114 (5), p.e78-e84
• Main Authors: Önem, Erinç, DDS, PhD, Baksı, B.Güniz, DDS, PhD, Şen, B. Hakan, DDS, PhD, Mert, Ali, DDS, PhD
• Format: Article
• Language: English
• Subjects: Dental Enamel; Dentistry; Humans; Minerals - chemistry; Radiography, Dental, Digital - instrumentation; ROC Curve; Sensitivity and Specificity; Surgery
• ISSN: 2212-4403; 2212-4411
• DOI: 10.1016/j.oooo.2012.05.021

Objective The aim of this study was to compare the diagnostic accuracy of F-speed film and storage phosphor plate (SPP) exposed with different exposure times for the detection of artificial enamel subsurface demineralization. Study Design Standard enamel windows of extracted premolars were exposed to a demineralizing solution. All teeth were radiographed before and after acid application with F-speed films and SPPs. Films were exposed for 0.25 seconds and SPPs were exposed using 4 exposure times. Receiver operating characteristic analysis was used for diagnostic accuracy (Az ). Results Significant differences were obtained among Az s of 0.08- versus 0.12-seconds and 0.10- versus 0.12-second exposed SPPs ( P < .05). Az s of films were higher than the SPPs exposed with 0.08, 0.10, and 0.12 seconds ( P < .05). No difference was found between the Az s of the 2 systems when SPPs were exposed for 0.16 seconds ( P > .05). Conclusions Diagnostic accuracy of films and SPPs was not impaired when exposure time was 36% reduced for the latter; however, diagnosis was impaired when reduced 52%.