In vitro comparison of conventional film and direct digital imaging in the detection of approximal caries
In vitro comparison of conventional film and direct digital imaging in the detection of approximal caries
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DOI：
10.1259/dmfr/15558921
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发表时间：
2007-03-01
影响因子：
3.3
通讯作者：
Spencer, P.
中科院分区：
文献类型：
--
作者：
Castro, V. M.;Katz, J. O.;Spencer, P.
目的：比较常规胶片、平扫直接数字成像和倒置灰度直接数字成像在邻面龋病诊断中的准确性。方法：根据病变深度的不同，选取150个恒磨牙和前磨牙的邻面。使用Ektaspeed Plus胶片对牙齿进行X光摄影；使用Schick Cmos-APS传感器制作数字图像。7名检查员对每种模式的58张随机图像进行了评估。结果：三种影像方法的诊断准确率无显著差异(P=0.226)。三种模式对病变深度的诊断准确率分析显示无统计学意义的交互作用，但病变深度的主效应显著(P<；0.001，eta(2)=0.936)。结论：三种模式对邻近龋病的诊断准确率具有可比性。这三种方法在牙釉质损伤的检测中都表现不佳。
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.