Diagnostic Performance of Direct Digital Radiography in Small Periapical Bone Lesion

Objective:To study the diagnostic performance of direct dental radiography,with and without imaging pro-cessing,in periapical bone lesions.Methods:The experimental periapical bone lesions were made in six dry human mandible using #1/2 to 7 round burs.The sizes of round burs were 0.6-2.0 mm.The radiographic images were taken by direct digital ra-diographic system.The images with and without imaging processing were reading by 5 observers.The results were evaluated with statistically analysis.Results:The diagnostic accuracy of digital dental radiography was much better with enlarging of bone lesions.But there was no significant effect for the diagnosis using the diagnostic performance.Conclusion:The direct digital dental radiography is a promising technique for detection of experimental small periapical bone lesions.The results are valuable on diagnosis of clinical periapical bone lesions.