Güray E, Orhan M
Department of Orthodontics, Selçuk University, Faculty of Dentistry, Konya, Turkey.
Am J Orthod Dentofacial Orthop. 1997 Jan;111(1):87-92. doi: 10.1016/s0889-5406(97)70306-8.
The Selçuk type headgear-timer (STHT) is described and tested under laboratory conditions first and then in a controlled patient study. The timing device was compared with real time measurements for 4 months. Accuracy was determined to be absolute (100%). The STHT was determined to be independent of force variables, easy to construct, rugged, and inexpensive. In the clinical test, 10 patients were instructed to wear the extraoral appliance for 16 hours a day. After a 2-month treatment period, the timing mechanisms were introduced to the patients and a subsequent 2-month treatment period was initiated. At the end of the second period, headgear wear was increased 26%. This significant improvement in patient compliance with the STHT timing device, attached to a standard breakaway type headgear, has the likelihood of enhancing treatment results. A foolproof method of assessing actual duration of wear is now available.
塞尔柱式头帽定时器（STHT）首先在实验室条件下进行了描述和测试，然后在一项对照患者研究中进行了测试。该计时装置与实时测量进行了4个月的比较。确定其准确性是绝对的（100%）。STHT被确定为独立于力变量，易于构建，坚固耐用且价格低廉。在临床试验中，10名患者被指示每天佩戴口外矫治器16小时。经过2个月的治疗期后，向患者引入计时机制，并开始随后的2个月治疗期。在第二个治疗期结束时，头帽佩戴时间增加了26%。将STHT计时装置连接到标准可拆卸式头帽上，患者对其依从性有了显著提高，这有可能提高治疗效果。现在有了一种评估实际佩戴时长的万无一失的方法。
