Department of Prosthodontics, University of Heidelberg, Heidelberg, Germany.
Institute of Medical Biometry and Informatics (IMBI), University of Heidelberg, Heidelberg, Germany.
J Oral Rehabil. 2022 Jul;49(7):720-728. doi: 10.1111/joor.13327. Epub 2022 Apr 11.
Reliable and suitable bruxism assessment would be desirable, but available studies presented heterogeneous results.
To determine the agreement of patient self-reports and clinical signs of sleep bruxism (SB) with electromyographic/electrocardiographic data.
Two hundred individuals from a German dental clinic population (120 women and 80 men) participated in the study. Participants completed different SB questionnaires, had a clinical examination to evaluate bruxism signs and used the Bruxoff® device to record electromyographic/electrocardiographic data for five nights. To investigate interrater reliability for clinical diagnosis of bruxism, 126 of the 200 participants were assessed for clinical signs of bruxism by two independent uncalibrated examiners. Statistical evaluation included calculation of sensitivity, specificity and accuracy and of Cohen's kappa.
Based on the Bruxoff® data, 106 participants were identified as bruxers and 94 as non-bruxers. The 106 bruxers were further classified into 47 moderate and 59 intense bruxers. The highest accuracy and sensitivity values were recorded for the overall score for clinical bruxism signs (accuracy: 72.0% and sensitivity: 70.8%). The best specificity (96.8%) was seen for the question regarding tooth grinding in the last two weeks reported by others, but concurrent sensitivity was very low (3.8%). Analysis of interrater reliability revealed a substantial agreement (Cohen's kappa of 0.6).
The study results indicate that self-report questionnaires and clinical signs have moderate sensitivity, specificity and accuracy for diagnosing bruxism comparing with an ambulatory device for current SB (Bruxoff®). Regarding interrater reliability for clinical signs of SB, substantial agreement was found between the two examiners.
NCT03039985.
可靠且合适的磨牙症评估是理想的，但现有研究结果存在差异。
确定患者自我报告和睡眠磨牙症（SB）的临床体征与肌电图/心电图数据的一致性。
本研究纳入了一家德国牙科诊所的 200 名参与者（120 名女性和 80 名男性）。参与者完成了不同的磨牙症问卷，接受了评估磨牙症体征的临床检查，并使用 Bruxoff®设备记录了五晚的肌电图/心电图数据。为了研究临床诊断磨牙症的观察者间可靠性，200 名参与者中有 126 名由两名独立的未经校准的检查者进行了磨牙症临床体征评估。统计评估包括灵敏度、特异性和准确性以及 Cohen's kappa 的计算。
根据 Bruxoff®数据，有 106 名参与者被确定为磨牙症患者，94 名参与者为非磨牙症患者。106 名磨牙症患者进一步分为 47 名中度磨牙症患者和 59 名重度磨牙症患者。临床磨牙症体征总评分的准确性和灵敏度最高（准确性：72.0%，灵敏度：70.8%）。过去两周他人报告的磨牙行为问题的特异性最高（96.8%），但同时灵敏度非常低（3.8%）。观察者间可靠性分析显示存在高度一致性（Cohen's kappa 为 0.6）。
研究结果表明，与当前 SB（Bruxoff®）的动态设备相比，自我报告问卷和临床体征对诊断磨牙症具有中等的灵敏度、特异性和准确性。关于 SB 的临床体征的观察者间可靠性，两名检查者之间存在高度一致性。
NCT03039985。
