Abstract
Cone-beam CT is a new technology, able to provide a 3D imaging of parts of the orofacial system. In principle, the device is able to obtain a large amount of 2D X-ray images, which are transferred to 3D picture by computer.
With a limited radiation dose and substantial space resolution, it offers enough data for diagnosis, treatment planning and recall. The most often applications in endodontics include precise 3D imaging of roots and root canals, periapical pathological processes, internal and external resorption and detection of root fractures.
Moreover, CBCT plays an important role in monitoring of treatment success. When compared to classical CT, the CBCT offers increased preciseness, higher resolution, shorter imaging time and reduced radiation dose.
When compared to conventional intraoral X-ray, the CBCT has an ability to eliminate superposition of surrounding structures and magnification, caused by different angle of beam and different distance of examined subject from X-ray image to sensor. It offers clinically clear and relevant informations.
The negatives include limited availability and significant price.