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Abstract #1423

Assessment of Apical Periodontitis by Size Comparison Between MRI and CBCT

Elena Sophia Schreiber1, 2, Anna-Katinka Bracher1, Erich Hell3, Johannes Ulrici3, Margrit-Ann Geibel2, Leif-Konradin Sailer4, Volker Rasche1

1Department of Internal Medicine II, University Hospital of Ulm, Ulm, BW, Germany; 2Department of Oral and Maxillofacial Surgery, University Hospital of Ulm, Ulm, BW, Germany; 3Sirona Dental Systems GmbH, Bensheim, Germany; 4DOC Praxisklinik im Wiley, Neu-Ulm, Germany

The identification of the culprit lesion in apical periodontitis is often difficult due to the only limited performance of X-ray based techniques. MRI was applied in 30 patients and the results were qualitatively and quantitatively compared with cone beam CT images. MRI appears to reflect the actual size of the lesion much better than X-ray images and hereby an improvement of identification of the apical periodontitis can be achieved.