Sahm G
Poliklinik für Kieferorthopädie der Universität Würzburg.
Fortschr Kieferorthop. 1990 Aug;51(4):243-7. doi: 10.1007/BF02167357.
A timing device for removable orthodontic appliances is described. The measurement system includes a quartz digital clock at the timer. A reed switch serves as a sensor and is activated by a magnetic device fastened directly or by an orthodontic band to a molar tooth. A changeover reedswitch prevents manipulation by the patient. As a timing device the system provides great accuracy. The high-speed capability of the device permits further scientific application: Installation of two timing devices in a single Bionator permits selective timing (e.g. biting contact during wear of the appliance).
本文介绍了一种用于可摘矫治器的计时装置。该测量系统在定时器处包括一个石英数字钟。一个簧片开关用作传感器，由直接固定或通过正畸带固定在磨牙上的磁性装置激活。一个转换簧片开关可防止患者操作。作为一种计时装置，该系统具有很高的准确性。该装置的高速能力允许进一步的科学应用：在单个生物调节器中安装两个计时装置可实现选择性计时（例如在佩戴矫治器期间的咬合接触）。
