Brierley Catherine A, Benson Philip E, Sandler Jonathan
a Academic Unit of Oral Health and Development, School of Clinical Dentistry , University of Sheffield , Sheffield , UK.
b Orthodontic Department , Chesterfield Royal Hospital , Chesterfield , Derbyshire , UK.
J Orthod. 2017 Dec;44(4):241-248. doi: 10.1080/14653125.2017.1365220. Epub 2017 Aug 22.
The TheraMon® microsensor is the most recent device developed to measure the wear-time of removable appliances. The accuracy has not been validated intraorally.
To determine 1) if the TheraMon® microsensor accurately records time when fixed intraorally, and 2) the effect of the intraoral location on the recorded time.
A prospective pilot study, using a convenience sample, was carried out in a UK hospital orthodontic department. Five non-patient volunteers wore microsensors positioned palatal to an upper molar, and buccal to a lower molar for 7 days. Differences between actual amount of wear and the wear recorded by each device were calculated. Differences between sites were also examined.
The mean daily wear-time recorded by the upper and lower microsensors combined was 23 hours (95% CI 22.6-23.4), which is a mean under-recording of 4% (CI 2.5-5.8%). The maximum daily under-reporting of wear times was 5.5 hours. Microsensors in the lower buccal sulcus recorded wear-times that were closer to actual wear-times.
Assumptions made by the TheraMon® microsensors software lead to under-reporting of intraoral wear-time, particularly when placed palatally. These discrepancies could be significant in both clinical practice and research. Adjustment of the microsensor software parameters would improve accuracy, irrespective of the intraoral location.
TheraMon® 微型传感器是最近开发的用于测量可摘矫治器佩戴时间的设备。其准确性尚未在口腔内得到验证。
确定 1）TheraMon® 微型传感器在口腔内固定时是否能准确记录时间，以及 2）口腔内位置对记录时间的影响。
在英国一家医院的正畸科进行了一项前瞻性试点研究，采用便利样本。五名非患者志愿者在上颌磨牙腭侧和下颌磨牙颊侧佩戴微型传感器 7 天。计算实际佩戴量与每个设备记录的佩戴量之间的差异。还检查了不同位置之间的差异。
上下微型传感器记录的平均每日佩戴时间为 23 小时（95%CI 22.6 - 23.4），平均记录不足 4%（CI 2.5 - 5.8%）。每日佩戴时间的最大漏报为 5.5 小时。下颌颊沟处的微型传感器记录的佩戴时间更接近实际佩戴时间。
TheraMon® 微型传感器软件的假设导致口腔内佩戴时间记录不足，尤其是放置在腭侧时。这些差异在临床实践和研究中都可能很显著。无论口腔内位置如何，调整微型传感器软件参数都将提高准确性。
