A force reproduction analysis of two recording sensors of a computerized occlusal analysis system
A force reproduction analysis of two recording sensors of a computerized occlusal analysis system
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DOI：
10.1179/crn.2006.004
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发表时间：
2006-01-01
影响因子：
1.6
通讯作者：
Radke, J
中科院分区：
文献类型：
--
作者：
Kerstein, RB;Lowe, M;Radke, J
本研究的目的是测量一种新设计的咬合传感器，即高清晰度（HD）传感器的性能，并将该传感器与以前的设计进行直接比较。与之前的设计（G3）相比，这种新的高清传感器设计增加了33%的活动记录面积，减少了50%的非活动记录面积。这是通过确定来自两种设计的传感器采样的同一传感器上重复咬合闭合的力再现变异性来完成的。三十（30）个G3和30个HD传感器通过气动咬合力模拟器在铰接式环氧铸件之间连续放置和加载24次。它们的力再现一致性是通过位于所有传感器上的六个咬合接触的电子电压降来测量的。两种传感器设计的力变异性是通过比较六个咬合接触上电压降的一致性来确定的。方差分析被用来确定跨六个咬合接触区域的多个闭合力再现的可变性。对于6个触点中的5个，G3传感器的平均方差显著大于HID传感器（p < 0.05）。HID传感器的传感器内变异性明显小于G3传感器。在本研究的限制下，HD传感器在至少20个实验室加载循环中表现出比G3传感器更少的可变力再现。
The purpose of this study was to measure the performance of a new design of occlusal sensor, the high definition (HD) sensor, and directly compare this sensor to the previous design. This new HD sensor design has increased active recording area by 33%, and decreased inactive recording area by 50% as compared to the previous design (G3). This was accomplished by determining the force reproduction variability for repeated occlusal closures on the same sensor for a sampling of sensors from both designs. Thirty (30) G3 and 30 HD sensors were consistently positioned and loaded 24 times between articulated epoxy casts by a Pneumatic Occlusal Force Simulator. Their force reproduction consistency was measured as an electronic voltage drop across six occlusal contacts that were consistently located on all sensors. The force variability of the two sensor designs was determined by comparing the consistency of the voltage drops across the six occlusal contacts. An analysis of variance was employed to determine the variability of force reproduction over multiple closures across six occlusal contact regions. For five of the six contacts, the G3 sensor mean variances, were significantly larger (p < 0.05) than those of the HID sensor. The within sensor variability of the HID sensor was significantly less than that of the G3 sensor. Within the limitations of this study, the HD sensor exhibited less variable force reproduction than the G3 sensor for at least 20 in-laboratory loading cycles.