Variability in the quantification of abrasion on the Bruxcore device.
Variability in the quantification of abrasion on the Bruxcore device.
复制标题
Bruxcore 设备上磨损量化的可变性。
作者：
G. Isacsson;L. Bodin;A. Seldén;L. Barregard
短期内牙表面的磨损率在临床上很难测量，但一种可量化的方法是使用Bruxcore磨牙监测装置。本研究的目的是使用不同的阅读方法来估计Bruxcore系统中观察者之间和观察者内部的变化。15名志愿者在连续4个晚上使用单独制造的Bruxcore设备，并在6周后重复该过程。30个Bruxcore装置的磨损面积由两名观察员在两个场合用三种方法测量：显微镜不带参考比例尺；带比例尺的显微镜；还有一个计算机辅助系统。观察者内部的变异很小（5%），但观察者之间的变异在三种方法中都具有统计学意义。计算机辅助系统优于其他两种方法。显微镜法的Bruxcore值与观察者的交互作用有统计学意义，而计算机法没有。这是一个期望的特性，表明计算机辅助方法在观察到的Bruxcore值范围内的稳定性。使用训练有素的观察者和计算机辅助方法读取Bruxcore磨牙症监测设备，可以预期小的测量误差，与测量的大小无关。
The rate of abrasion of dental surfaces during short periods of time is difficult to measure clinically, but one quantifiable method is the use of the Bruxcore bruxism monitoring device. The aim of this study was to estimate the interobserver and intraobserver variation in the Bruxcore system using different reading methods. Fifteen volunteers used individually fabricated Bruxcore devices during 4 consecutive nights, and this procedure was repeated after 6 weeks. The abraded areas of the 30 Bruxcore devices were measured by two observers on two occasions and with three methods: microscope without a reference scale; microscope with a reference scale; and a computer-aided system. Intraobserver variation was small (5%), but interobserver variation was statistically significant for all three methods. The computer-aided system was superior to the other two methods. The interaction between Bruxcore values and observers was statistically significant for the microscope methods but not for the computer method. This was a desired property, indicating stability of the computer-aided method over the range of Bruxcore values observed. Small measurement errors, independent of the size of the measurements, can be expected using a trained observer and a computer-aided method for reading the Bruxcore bruxism monitoring device.