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首页> 外文期刊>Oral Surgery, Oral Medicine, Oral Pathology, Oral Radiology and Endodontics >Comparison of images from digital intraoral receptors and cone beam computed tomography scanning for detection of voids in root canal fillings: An in vitro study using micro-computed tomography as validation
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Comparison of images from digital intraoral receptors and cone beam computed tomography scanning for detection of voids in root canal fillings: An in vitro study using micro-computed tomography as validation

机译：比较数字口腔内感受器和锥形束计算机断层扫描扫描图像以检测牙根管填充物中的空隙：使用微计算机断层扫描作为验证的体外研究

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摘要

Objective: To compare the diagnostic value of six intraoral digital receptors and a cone beam computed tomography scanning system for detection of voids in root fillings. Methods: Sixty-seven root-filled roots with oval and ribbon-shaped canals were included. Three standardized radiographic examinations were performed for each root with six intraoral digital receptors. Further, the roots were examined using CBCT. Four observers measured the extension of voids in all images. The true extension of voids was recorded in cross-sectional images from micro-computed tomography scans (micro-CT). The proportion of voids observed in the radiographic image validated against micro-CT was calculated for each system. Results: All intraoral receptors underestimated the extension of voids, and few false positives were recorded. CBCT resulted in a higher proportion of correctly observed voids, but with several false-positive recordings. Conclusions: The diagnostic value differed little among the six intraoral systems. CBCT overestimated in many cases the proportion of voids in root fillings.
机译：目的：比较六种口腔内数字受体和锥形束计算机断层扫描系统对牙根填充物中空洞的诊断价值。方法：包括根管椭圆形和带状的根根67根。对每个根与六个口内数字受体进行了三个标准化的射线照相检查。此外，使用CBCT检查根。四个观察者测量了所有图像中空隙的扩展。空隙的真实延伸记录在来自微型计算机断层扫描（micro-CT）的横截面图像中。对于每个系统，计算通过micro-CT验证的放射线图像中观察到的空隙比例。结果：所有的口腔内受体均低估了空隙的扩展，并且几乎没有记录到假阳性。 CBCT导致较高比例的正确观察到的空隙，但有一些假阳性记录。结论：六个口腔内系统的诊断价值差异很小。 CBCT在许多情况下高估了根部填充物中空隙的比例。

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