Document Type
Article
Publication Title
Dentomaxillofacial Radiology
Abstract
Objectives: To compare the diagnostic accuracy of conventional film, unenhanced direct digital and inversion grayscale direct digital imaging in the detection of approximal caries.
Methods: 150 approximal surfaces of extracted permanent molars and premolars were selected for the study on the basis of varying lesion depth. The teeth were radiographed using Ektaspeed Plus film; digital images were made with a Schick CMOS-APS sensor. 7 examiners evaluated 58 randomized images of each modality. Histological sectioning of the teeth was used to verify the presence and extent of decay.
Results: No significant difference was found between the diagnostic accuracies of the three imaging modalities (P=0.226). Analysis of the diagnostic accuracy of the three modalities on lesion depth showed no statistically significant interaction; however, the main effect of the lesion depth was significant (P<0.001, eta(2)=0.936).
Conclusions: The overall diagnostic accuracy of the three modalities in the detection of approximal carious lesions was comparable. All three modalities performed poorly in the detection of enamel lesions.
DOI
10.1259/dmfr/15558921
Publication Date
3-2007
Keywords
Carious lesions, Digital radiography, Image processing, Radiography
ISSN
1476-542X
Recommended Citation
Castro VM, Katz JO, Hardman PK, Glaros A, Spencer P. In Vitro Comparison of Conventional Film and Direct Digital Imaging in the Detection of Approximal Caries. Dentomaxillofacial Radiology. 2007; 36(3). doi: 10.1259/dmfr/15558921.
