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      Current status of dental caries diagnosis using cone beam computed tomography

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          Abstract

          Purpose

          The purpose of this article is to review the current status of dental caries diagnosis using cone beam computed tomography (CBCT).

          Materials and Methods

          An online PubMed search was performed to identify studies on caries research using CBCT.

          Results

          Despite its usefulness, there were inherent limitations in the detection of caries lesions through conventional radiograph mainly due to the two-dimensional (2D) representation of caries lesions. Several efforts were made to investigate the three-dimensional (3D) image of lesion, only to gain little popularity. Recently, CBCT was introduced and has been used for diagnosis of caries in several reports. Some of them maintained the superiority of CBCT systems, however it is still under controversies.

          Conclusion

          The CBCT systems are promising, however they should not be considered as a primary choice of caries diagnosis in everyday practice yet. Further studies under more standardized condition should be performed in the near future.

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          Most cited references62

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          Computerized transverse axial scanning (tomography). 1. Description of system.

          G N Hounsfield (1973)
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            The International Caries Detection and Assessment System (ICDAS): an integrated system for measuring dental caries.

            A. I. Ismail, W Sohn, M. Téllez … (2007)
            This paper describes early findings of evaluations of the International Caries Detection and Assessment System (ICDAS) conducted by the Detroit Center for Research on Oral Health Disparities (DCR-OHD). The lack of consistency among the contemporary criteria systems limits the comparability of outcomes measured in epidemiological and clinical studies. The ICDAS criteria were developed by an international team of caries researchers to integrate several new criteria systems into one standard system for caries detection and assessment. Using ICDAS in the DCR-OHD cohort study, dental examiners first determined whether a clean and dry tooth surface is sound, sealed, restored, crowned, or missing. Afterwards, the examiners classified the carious status of each tooth surface using a seven-point ordinal scale ranging from sound to extensive cavitation. Histological examination of extracted teeth found increased likelihood of carious demineralization in dentin as the ICDAS codes increased in severity. The criteria were also found to have discriminatory validity in analyses of social, behavioral and dietary factors associated with dental caries. The reliability of six examiners to classify tooth surfaces by their ICDAS carious status ranged between good to excellent (kappa coefficients ranged between 0.59 and 0.82). While further work is still needed to define caries activity, validate the criteria and their reliability in assessing dental caries on smooth surfaces, and develop a classification system for assessing preventive and restorative treatment needs, this early evaluation of the ICDAS platform has found that the system is practical; has content validity, correlational validity with histological examination of pits and fissures in extracted teeth; and discriminatory validity.
            Article 0 comments Cited 343 times – based on 0 reviews     Review now
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              A new volumetric CT machine for dental imaging based on the cone-beam technique: preliminary results.

              C Procacci, A Tacconi, Ivo Andreis … (1997)
              The objective of this paper is to present a new type of volumetric CT which uses the cone-beam technique instead of traditional fan-beam technique. The machine is dedicated to the dento-maxillo-facial imaging, particularly for planning in the field of implantology. The main characteristics of the unit are presented with reference to the technical parameters as well as the software performance. Images obtained are reported as various 2D sections of a volume reconstruction. Also, measurements of the geometric accuracy and the radiation dose absorbed by the patient are obtained using specific phantoms. Absorbed dose is compared with that given off by spiral CT. Geometric accuracy, evaluated with reference to various reconstruction modalities and different spatial orientations, is 0.8-1% for width measurements and 2.2% for height measurements. Radiation dose absorbed during the scan shows different profiles in central and peripheral axes. As regards the maximum value of the central profile, dose from the new unit is approximately one sixth that of traditional spiral CT. The new system appears to be very promising in dentomaxillo-facial imaging and, due to the good ratio between performance and low cost, together with low radiation dose, very interesting in view of large-scale use of the CT technique in such diagnostic applications.
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                Author and article information

                Journal
                Journal ID (nlm-ta): Imaging Sci Dent
                Journal ID (publisher-id): ISD
                Title: Imaging Science in Dentistry
                Publisher: Korean Academy of Oral and Maxillofacial Radiology
                ISSN (Print): 2233-7822
                ISSN (Electronic): 2233-7830
                Publication date (Print): June 2011
                Publication date (Electronic): 23 June 2011
                Volume: 41
                Issue: 2
                Pages: 43-51
                Affiliations
                Department of Oral Anatomy and Dental Research Institute, School of Dentistry, Seoul National University, Seoul, Korea.
                [* ]Department of Biomaterials Science and Dental Research Institute, School of Dentistry, Seoul National University, Seoul, Korea.
                [** ]Department of Prosthodontics and Dental Research Institute, School of Dentistry, Seoul National University, Seoul, Korea.
                Author notes
                Correspondence to: Prof. Seung-Pyo Lee. Department of Oral Anatomy, School of Dentistry, Seoul National University, 28 Yeongeon-dong, Jongno-gu, Seoul 110-749, Korea. Tel) 82-2-740-8671, Fax) 82-2-740-8674, orana9@ 123456snu.ac.kr
                Article
                DOI: 10.5624/isd.2011.41.2.43
                PMC ID: 3174463
                PubMed ID: 21977474
                SO-VID: d43b189f-16b9-4cc3-bcf9-f16c20f1a216
                Copyright © Copyright © 2011 by Korean Academy of Oral and Maxillofacial Radiology
                License:

                This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License ( http://creativecommons.org/licenses/by-nc/3.0) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.

                History
                Date received : 16 March 2011
                Date revision received : 19 April 2011
                Date accepted : 29 April 2011
                Categories
                Subject: Review Article

                ScienceOpen disciplines: Dentistry
                Keywords: diagnosis,cone-beam computed tomography,dental caries
                Data availability:
                ScienceOpen disciplines: Dentistry
                Keywords: diagnosis, cone-beam computed tomography, dental caries

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