Maeda Y, Ohtani T, Okada M, Emura I, Sogo M, Mori T, Yoshida M, Nokubi T, Okuno Y
Osaka Daigaku Shigaku Zasshi. 1989 Dec;34(2):378-84.
Analyzing occlusal contacts is significant for establishing the occlusal scheme as well as for the diagnosis on dysfunction of stomatognathic system. We tested a new occlusal contact analyzing device (T-Scan: Tekscan Inc. Boston, U.S.A.) for its sensitivity and reproducibility in relation to its clinical application. Following results were obtained. 1) As the modeling of dental arch of this system was not always correct, much care should be needed for identifying the contact location. 2) The minimum amount of load needed for displaying each five step occlusal force increased linear fashion (step 1: 250 g and step 5: 1750 g) when the sensor was vertically pressed on the intersection of force sensitive line. The minimum amount of force changed with the loading condition such as area and direction. Distortion of the sensor could lead the measurement error. 3) Since the time measurement data by this system were shorter than actual length of time and were measured over about 250 g load, light and early occlusal contacts could not be detected.
分析咬合接触对于确立咬合方案以及诊断口颌系统功能障碍具有重要意义。我们测试了一种新型咬合接触分析设备（T-Scan：美国波士顿Tekscan公司）在临床应用中的敏感性和可重复性。获得了以下结果。1）由于该系统牙弓建模并非总是正确，在确定接触位置时需要格外小心。2）当传感器垂直按压在力敏线交点上时，显示每五个等级咬合力所需的最小负荷量呈线性增加（第1级：250克，第5级：1750克）。最小力量量会随加载条件（如面积和方向）而变化。传感器的变形可能导致测量误差。3）由于该系统的时间测量数据比实际时间短，且是在约250克负荷以上进行测量的，因此无法检测到轻微和早期的咬合接触。
