Radiology illuminates what otherwise would be dark and hidden zones, and allows the dentists to visualize areas not accessible by other diagnostic means. After completion of the history and physical examination, the examiner may order pertinent views that will most likely contribute to the further description and diagnosis. Periapical radiographs, either captured on x-ray film or digital sensors, used for the management of endodontic problems provide limited information because of the combination of their two dimensional nature, geometric distortion, anatomical noise, and temporal perspective. The technological advances have led to the introduction of digital radiology with many potential benefits in endodontic practice. Some of the modern imaging procedures are digital radiography, subtraction radiography, CT, radionuclide scanning, MRI, and ultrasound imaging. This book is an attempt, at providing a compilation of different endodontic imaging techniques and its application in endodontics.