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      Use of Cone Beam Computed Tomography in Endodontics

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          Abstract

          Cone Beam Computed Tomography (CBCT) is a diagnostic imaging modality that provides high-quality, accurate three-dimensional (3D) representations of the osseous elements of the maxillofacial skeleton. CBCT systems are available that provide small field of view images at low dose with sufficient spatial resolution for applications in endodontic diagnosis, treatment guidance, and posttreatment evaluation. This article provides a literature review and pictorial demonstration of CBCT as an imaging adjunct for endodontics.

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          Clinical applications of cone-beam computed tomography in dental practice.

          William Scarfe, Allan G. Farman, Predag Sukovic (2006)
          Cone-beam computed tomography (CBCT) systems have been designed for imaging hard tissues of the maxillofacial region. CBCT is capable of providing sub-millimetre resolution in images of high diagnostic quality, with short scanning times (10-70 seconds) and radiation dosages reportedly up to 15 times lower than those of conventional CT scans. Increasing availability of this technology provides the dental clinician with an imaging modality capable of providing a 3-dimensional representation of the maxillofacial skeleton with minimal distortion. This article provides an overview of currently available maxillofacial CBCT systems and reviews the specific application of various CBCT display modes to clinical dental practice.
          Article 0 comments Cited 271 times – based on 0 reviews     Review now
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            What is cone-beam CT and how does it work?

            Allan G. Farman, William Scarfe (2008)
            This article on x-ray cone-beam CT (CBCT) acquisition provides an overview of the fundamental principles of operation of this technology and the influence of geometric and software parameters on image quality and patient radiation dose. Advantages of the CBCT system and a summary of the uses and limitations of the images produced are discussed. All current generations of CBCT systems provide useful diagnostic images. Future enhancements most likely will be directed toward reducing scan time; providing multimodal imaging; improving image fidelity, including soft tissue contrast; and incorporating task-specific protocols to minimize patient dose.
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              Comparative dosimetry of dental CBCT devices and 64-slice CT for oral and maxillofacial radiology.

              Marija Ivanovic, John B. Ludlow (2008)
              This study compares 2 measures of effective dose, E(1990) and E(2007), for 8 dentoalveolar and maxillofacial cone-beam computerized tomography (CBCT) units and a 64-slice multidetector CT (MDCT) unit. Average tissue-absorbed dose, equivalent dose, and effective dose were calculated using thermoluminescent dosimeter chips in a radiation analog dosimetry phantom. Effective doses were derived using 1990 and the superseding 2007 International Commission on Radiological Protection (ICRP) recommendations. Large-field of view (FOV) CBCT E(2007) ranged from 68 to 1,073 microSv. Medium-FOV CBCT E(2007) ranged from 69 to 560 microSv, whereas a similar-FOV MDCT produced 860 microSv. The E(2007) calculations were 23% to 224% greater than E(1990). The 2007 recommendations of the ICRP, which include salivary glands, extrathoracic region, and oral mucosa in the calculation of effective dose, result in an upward reassessment of fatal cancer risk from oral and maxillofacial radiographic examinations. Dental CBCT can be recommended as a dose-sparing technique in comparison with alternative medical CT scans for common oral and maxillofacial radiographic imaging tasks.
              Article 0 comments Cited 132 times – based on 0 reviews     Review now
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                Author and article information

                Journal
                Journal ID (nlm-ta): Int J Dent
                Journal ID (publisher-id): IJD
                Title: International Journal of Dentistry
                Publisher: Hindawi Publishing Corporation
                ISSN (Print): 1687-8728
                ISSN (Electronic): 1687-8736
                Publication date (Print): 2009
                Publication date (Electronic): 31 March 2010
                Volume: 2009
                Electronic Location Identifier: 634567
                Affiliations
                1Division of Radiology and Imaging Science, Department of Surgical and Hospital Dentistry, The University of Louisville School of Dentistry, 501 South Preston Street, Louisville, KY 40292, USA
                2Department of Endodontics, School of Dental Medicine, University of Pennsylvania, Philadelphia, PA 19103, USA
                3Kodak Dental Imaging/Practiceworks, 1765 The Exchange, Atlanta, GA 30339, USA
                Author notes

                Recommended by Eiichiro I. Ariji

                Article
                DOI: 10.1155/2009/634567
                PMC ID: 2850139
                PubMed ID: 20379362
                SO-VID: 27983936-982c-4d61-b8a7-50fb54fee1dc
                Copyright © Copyright © 2009 William C. Scarfe et al.
                License:

                This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

                History
                Date received : 16 September 2009
                Date accepted : 15 December 2009
                Categories
                Subject: Review Article

                ScienceOpen disciplines: Dentistry
                Data availability:
                ScienceOpen disciplines: Dentistry

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