Tirrell B C, Miles D A, Brown C E, Legan J J
Indiana University School of Dentistry, Indianapolis 46202, USA.
J Endod. 1996 Feb;22(2):74-8. doi: 10.1016/S0099-2399(96)80276-7.
This study compared conventional radiography to digital imaging in detecting chemically created lesions. Six human cadaver jaw specimens were used. A 70% perchloric acid solution was used to create lesions on the buccal cortical plate of each specimen. Digital imaging and conventional images were created after progressing time increments; each increment represented a more advanced lesion. The images were randomly evaluated by five evaluators. This study concluded: (i) when no lesion existed, there was no significant difference in digital imaging or conventional radiography in early detection; (ii) at 12 and 24 h, digital imaging demonstrated lesions significantly earlier than conventional radiography (p = 0.0001); (iii) no difference could be found between imaging techniques at 36 h and thereafter; and (iv) there were no significant differences in the various RadioVisioGraphy enhancement settings used at any of the time points examined.
本研究比较了传统放射摄影术与数字成像在检测化学性损伤方面的效果。使用了六个人类尸体颌骨标本。用70%的高氯酸溶液在每个标本的颊侧皮质板上制造损伤。在时间递增后获取数字成像和传统图像；每次递增代表更严重的损伤。由五名评估者对图像进行随机评估。本研究得出结论：(i) 当不存在损伤时，数字成像或传统放射摄影术在早期检测方面无显著差异；(ii) 在12小时和24小时时，数字成像比传统放射摄影术能显著更早地显示损伤（p = 0.0001）；(iii) 在36小时及之后，成像技术之间未发现差异；(iv) 在任何检查时间点使用的各种口腔数字成像增强设置之间无显著差异。
