School of Dentistry, University of Padova, Padova, Italy.
Department of Orofacial Pain and Dysfunction, Academic Centre for Dentistry Amsterdam (ACTA, University of Amsterdam and Vrije Universiteit Amsterdam, Amsterdam, The Netherlands.
J Oral Rehabil. 2021 Sep;48(9):989-995. doi: 10.1111/joor.13212. Epub 2021 Jun 9.
A smartphone-based ecological momentary assessment (EMA) strategy was used to assess the frequency of awake bruxism behaviours, based on the report of five oral conditions (ie relaxed jaw muscles, teeth contact, mandible bracing, teeth clenching and teeth grinding). One hundred and fifty-three (N = 153) healthy young adults (mean ± SD age = 22.9 ± 3.2 years), recruited in two different Italian Universities, used a dedicated smartphone application that sent 20 alerts/day at random times for seven days. Upon alert receipt, the subjects had to report in real-time one of the above five possible oral conditions. Individual data were used to calculate an average frequency of the study population for each day. For each condition, a coefficient of variation (CV) of frequency data was calculated as the ratio between SD and mean values over the seven recording days. Average frequency of the different behaviours over the seven days was as follows: relaxed jaw muscle, 76.4%; teeth contact, 13.6%; mandible bracing, 7.0%; teeth clenching, 2.5%; and teeth grinding, 0.5%. No significant differences were found in frequency data between the two University samples. The relaxed jaw muscles condition was more frequent in males (80.7 ± 17.7) than in females (73.4 ± 22.2). The frequency of relaxed jaw muscles condition over the period of observation had a very low coefficient of variation (0.27), while for the different awake bruxism behaviours, CV was in a range between 1.5 (teeth contact) and 4.3 (teeth grinding). Teeth contact was the most prevalent behaviour (57.5-69.7). Findings from this investigation suggest that the average frequency of AB behaviours over one week, investigated using EMA-approach, is around 23.6%.
一种基于智能手机的生态瞬时评估（EMA）策略被用于评估清醒磨牙行为的频率，基于报告的五种口腔状况（即放松的颌肌、牙齿接触、下颌支撑、牙齿紧咬和磨牙）。153 名（N=153）健康的年轻成年人（平均年龄±标准差为 22.9±3.2 岁），分别在两所意大利大学招募，使用专门的智能手机应用程序，每天随机发送 20 次提醒。收到提醒后，受试者必须实时报告上述五种可能的口腔状况之一。个体数据用于计算研究人群中每一天的平均频率。对于每种情况，频率数据的变异系数（CV）计算为七天记录期间的标准差与平均值之比。七种不同行为的平均频率如下：放松的颌肌，76.4%；牙齿接触，13.6%；下颌支撑，7.0%；牙齿紧咬，2.5%；磨牙，0.5%。两所大学样本之间的频率数据无显著差异。放松的颌肌状态在男性中更为常见（80.7±17.7），而在女性中则更为常见（73.4±22.2）。在观察期间，放松的颌肌状态的频率变化系数（CV）非常低（0.27），而不同的清醒磨牙行为的 CV 则在 1.5（牙齿接触）至 4.3（磨牙）之间。牙齿接触是最常见的行为（57.5%-69.7%）。这项研究的结果表明，使用 EMA 方法调查一周内 AB 行为的平均频率约为 23.6%。
