الفهرس 
Accurate detection of apical root resorption after orthodontic treatment using periapical radiograph, panoramic radiograph and cone beam computed tomographic scan
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Abstract
The current study was carried out to evaluate detection accuracy of post orthodontic treatment apical root resorption in extraction and non-extraction cases using digital periapical radiographs, panoramic radiographs and cone beam computed tomography scans. Subject and Methods: Twenty subjects at the end of fixed orthodontic treatment were selected from the Outpatients Clinic of the Orthodontic Department, Faculty of Oral and Dental Medicine, Cairo University whom had consented to participate in the project ( with age ranged from 16 years old to 25 years old and an average of 19.4years). The sample was divided equally into two equal halves. Extraction of one premolar in each mouth quadrant was performed in half of the sample while the other half were non extraction, as planned for their orthodontic treatment. Each subject in each group received Panoramic, Digital periapical and CBCT radiographical views . Four calibrated examiners assessed separately and blindly the presence or absence and the degree of root resorption in all the taken radiographical views by using Malmegren scoring index. Then a comparison between the results of each viewer was done