Saracutu Ovidiu Ionut, Pollis Matteo, Bulferi Bulferetti Ludovico, Kaya Elifnaz, Ferrari Cagidiaco Edoardo, Ferrari Marco, Colonna Anna, Manfredini Daniele
School of Dentistry, Department of Medical Biotechnologies, University of Siena, Siena, 53100, Italy.
Clin Oral Investig. 2025 Jul 2;29(7):365. doi: 10.1007/s00784-025-06394-2.
The aim of the present research is to compare, in a group of healthy young individuals, the number of sleep bruxism (SB) events with the use of two different electromyographic (EMG) devices, which adopt two different protocols for scoring the events.
The study was performed on 10 individuals recruited at the University of Siena, Italy. Participants were asked to perform one night of sleep-time recording wearing simultaneously, in their home environment, two different EMG devices, the Bruxoff (Bruxoff, Turin, Italy) and the dia-BRUXO (dia-BRUXO, Biotech-Novations, Sanremo, Italy). SB events were identified by the Bruxoff software algorithm as the EMG peaks of an amplitude that exceeds 10% of the maximum voluntary contraction (MVC) performed by the subject before the start of the registration, and that are preceded by a 20% increase in the heart rate compared to the baseline. Conversely, the dia-BRUXO software identified the EMG peaks exceeding 10% of the maximum contraction (MC) recorded during the entire registration period. Both devices were set to count the events lasting 1-5 s. After each night of recording, data was downloaded through the dedicated software of each device, which generates a report with the number of sleep bruxism events.
All the recruited participants completed the registrations at the first attempt without reporting any detachment of the electrodes. The Pearson test showed a strong correlation between the number of SB events scored by the two devices (r = 0.9613, p < 0.001).
Within the limitation of this study, our results suggest the existence of a strong correlation between the two different registration protocols for the registration of the number of SB events.
The present study suggest that clinicians can adopt easier and user-friendly protocols for the registration of sleep bruxism events, that do not necessarily require a pre-calibration of the device.
本研究旨在比较一组健康年轻个体中，使用两种不同的肌电图（EMG）设备记录的睡眠磨牙（SB）事件数量，这两种设备采用两种不同的事件评分方案。
该研究在意大利锡耶纳大学招募的10名个体中进行。参与者被要求在其家中环境中同时佩戴两种不同的EMG设备——Bruxoff（意大利都灵的Bruxoff公司）和dia - BRUXO（意大利圣雷莫的Biotech - Novations公司的dia - BRUXO）进行一晚的睡眠时间记录。Bruxoff软件算法将SB事件识别为在记录开始前受试者最大自主收缩（MVC）幅度超过10%的EMG峰值，且该峰值之前心率较基线增加20%。相反，dia - BRUXO软件识别出在整个记录期间超过最大收缩（MC）10%的EMG峰值。两种设备均设置为统计持续1 - 5秒的事件。每晚记录后，通过每个设备的专用软件下载数据，该软件会生成一份包含睡眠磨牙事件数量的报告。
所有招募的参与者均在首次尝试时完成记录，且未报告电极有任何脱落情况。Pearson检验显示，两种设备记录的SB事件数量之间存在强相关性（r = 0.9613，p < 0.001）。
在本研究的局限性范围内，我们的结果表明，两种不同的SB事件记录方案之间存在强相关性。
本研究表明，临床医生可以采用更简便且用户友好的方案来记录睡眠磨牙事件，不一定需要对设备进行预校准。
