Radiographic determination of canal length direct digital radiography versus conventional radiography.
Radiographic determination of canal length direct digital radiography versus conventional radiography.
复制标题
射线照相确定根管长度直接数字射线照相与传统射线照相。
DOI：
10.1016/s0099-2399(06)80093-2
复制
发表时间：
1994
影响因子：
4.2
通讯作者：
W. McDavid
中科院分区：
文献类型：
--
作者：
Randall T. Hedrick;S. B. Dove;Donald D. Peters;W. McDavid
这项研究将 Trophy 和 Regam 直接数字射线照相系统产生的长度确定图像与传统的电子速度射线照相进行了比较。将尺寸#15 K 的锉刀放入尸体标本 19 颗牙齿的根管中，并在几何标准化的台式设备中进行射线照相。三名评估者估计了将锉刀定位在顶点所需的长度调整。将平均估计调整长度与真实的、根据解剖学确定的调整长度进行比较。方差分析和 Student-Newman-Keuls 检验的统计分析表明直接数字热打印图像与传统射线照片之间没有显着差异 (p > 0.10)。传统射线照片的长度调整估计明显比 Regam 高分辨率计算机监视器图像更准确 (p < 0.01)。此外，还确定，当锉刀放置在靠近顶点的位置时，长度调整估计值明显更准确 (p < 0.001)。讨论了这些差异的临床相关性。
This research compared the length determination images produced by Trophy and Regam direct digital radiographic systems with conventional E-speed radiographs. Size # 15 K files were placed in the canals of 19 teeth of cadaver specimens and radiographed in a geometrically standardized bench device. Three evaluators estimated the length adjustment necessary to position the file at the apex. The mean estimated adjustment lengths were compared with the true, anatomically determined adjustment lengths. Statistical analysis with analysis of variance and the Student-Newman-Keuls test indicated no significant difference between direct digital thermal print images and conventional radiographs (p > 0.10). Length adjustment estimates with conventional radiographs were significantly more accurate than Regam high-resolution computer monitor images (p < 0.01). Additionally, it was determined that length adjustment estimates were significantly more accurate when the file was placed short of the apex (p < 0.001). The clinical relevance of these differences is discussed.