de Azevedo Vaz Sergio Lins, Neves Frederico Sampaio, Figueirêdo Evandro Portela, Haiter-Neto Francisco, Campos Paulo Sérgio Flores
Department of Oral Diagnosis, Division of Oral Radiology, Piracicaba Dental School, University of Campinas, Piracicaba, São Paulo, Brazil.
Clin Oral Implants Res. 2013 Oct;24(10):1074-7. doi: 10.1111/j.1600-0501.2012.02511.x. Epub 2012 Jul 4.
To identify the accuracy of enhancement filters of an intraoral phosphor-plate system for measuring the simulated peri-implant bone level.
A total of 20 titanium implants (Titamax(®) ) were placed into six fragments of bovine ribs and defects simulating bone loss were created. Periapical radiographs were taken with a phosphor-plate system (Vista Scan(®) ) according to the paralleling standard technique, and nine enhancement filters were applied: fine, caries 1, caries 2, perio, endo, noise reduction, invert, emboss, and sculpture. The Friedman test compared the radiographic measurements of the defects to those obtained on the bovine ribs with a digital caliper. Intra- and interobserver agreement was calculated with the intra-class correlation coefficient (ICC).
The ICC values showed excellent intra- and interobserver agreement. The caries1, caries2, endo, and perio filters resulted on measurements statistically different from both the original images and the measurements of the digital caliper (P < 0.05). The other filters did not show statistically significant differences from the original images nor from the measurements of the digital caliper.
In addition to the original images, the fine and emboss filters resulted on the most precise measures. The caries1, caries2, endo, and perio filters were the less accurate for measuring the peri-implant bone level.
确定口腔内磷光板系统增强滤镜在测量模拟种植体周围骨水平方面的准确性。
将20枚钛种植体（Titamax®）植入六块牛肋骨碎片中，并制造模拟骨丢失的缺损。根据平行标准技术，使用磷光板系统（Vista Scan®）拍摄根尖片，并应用九种增强滤镜：精细、龋齿1、龋齿2、牙周、牙髓、降噪、反转、浮雕和雕刻。弗里德曼检验将缺损的影像学测量结果与使用数字卡尺在牛肋骨上获得的测量结果进行比较。观察者内和观察者间的一致性通过组内相关系数（ICC）计算。
ICC值显示观察者内和观察者间具有良好的一致性。龋齿1、龋齿2、牙髓和牙周滤镜的测量结果与原始图像以及数字卡尺的测量结果在统计学上存在差异（P < 0.05）。其他滤镜与原始图像以及数字卡尺的测量结果相比，在统计学上没有显著差异。
除原始图像外，精细和浮雕滤镜的测量结果最为精确。龋齿1、龋齿2、牙髓和牙周滤镜在测量种植体周围骨水平方面准确性较低。
