Comparing Diagnosis Accuracy of Indirect Digital Preapical Radiography (PSP) and Paper Print in Assessing External Resorption in Cervical Root Area
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Publication date: 2019-04-24
Eurasian J Anal Chem 2019;14(2):emEJAC191024
Background and aim: Identifying exterior resorption of root can be challenging particularly when no clinical symptoms are observed. This study compares accuracy of indirect digital preapical radiography (PSP) and paper print in detecting exterior resorption in cervical root area. Methodology: This study was performed on 60 single-root premolar teeth. Cavities were created by diamond circular milling machine with low speed and 1mm diameter. In this paper, indirect digital preapical radiographies (PSP) were provided from teeth and then they were printed by laser printer for radiography stereotypes and then they were printed on silk paper for paper print and then they were studied by two observer in half-dark room. Results were analyzed by SPSS software (22th version) through Kappa ,McNemar and Spearman correlation tests. Results: Generally, sensitivity and specifity were respectively 90% and 40/8% for digital image and were 86/7% and 45% for paper print. There was no significant difference in sensitivity, specify and accuracy of digital image and paper print (p≤0/05). Positive predictive value and negative predictive value were 40/8% and 90% in digital image respectively and they were 45% and 86/7% in paper print, compatibility of digital images and reality was 0/308 and compatibility of paper print and reality was 0/317. There was significant difference between digital image method and reality and paper print and reality (p<0.001). Conclusion: Generally, sensitivity and specificity of digital image was close to paper print. However results obtained from digital image in different depth of artificial resorption were different so that digital image had higher sensitivity and specificity in small resorption with 0/5mm depth.