Objective: The purpose of this study was to assess the capacity of radiodensitometric analysis in generating objective differential diagnosis for periapical bone lesions using corelations between the gray levels pattern of distribution and the type of lesion. Material and methode: The targeted radiological areas of interest (RAI) were digitally analyzed regarding optical density on 144 digitized radiographs. The characteristic aspects and the radiodensitometric patterns for each case were established by computing gray levels density histograms and cumulative percent histograms (CPH). Results: The density histograms curves for periapical granuloma are generally bimodal while those for dental cysts are unimodal; the CPH curves for dental cysts have a sharper slope in comparison with those for periapical granuloma. Conclusions: Based on the results of this study the radiodensitometric method validates characteristic patterns for the analyzed types of lesions, proving itself as being an useful investigation for the differential diagnosis of the ostheitic periapical lesions.
Keywords:- DIGITAL RADIODENSITOMETRY ANALYSIS
- PERIAPICAL BONE LESIONS