Dias Ricardo, Lima Rui, Prado Ivana Meyer, Colonna Anna, Ferrari Marco, Serra-Negra Júnia Maria, Manfredini Daniele
Dentistry Department, Faculty of Medicine, University of Coimbra, 3000-015 Coimbra, Portugal.
Department of Pediatric Dentistry, Federal University of Minas Gerais, 6627-Pampulha, Belo Horizonte 31270-901, MG, Brazil.
J Clin Med. 2022 Oct 18;11(20):6147. doi: 10.3390/jcm11206147.
Confinement by COVID-19 was a stressful period that could potentially trigger awake bruxism (AB) and/or sleep bruxism (SB) behaviors. This study aims to characterize the AB and SB behaviors reported by Portuguese dental students before the pandemic and during the first period of mandatory confinement by COVID-19. Dental students were included in this longitudinal study. They answered the Portuguese validated version of the Oral Behavior Checklist (OBC) before the COVID-19 pandemic emerged (T1) and one month after mandatory confinement started in Portugal (T2). Descriptive statistics and the linear-by-linear association test were performed to assess changes over time (p ≤ 0.05). Sixty-four dental students (mean age 22.5 ± 2.8 years; 81.5% females) completed the study protocol. Considering AB, there was a general increase of the behavior from T1 to T2. The percentage of participants who reported to “grind their teeth when waking up” just few times decreased (p < 0.001) and the percentage of participants who reported “feeling discomfort/tension in the facial muscles when waking up just few times” increased (p = 0.019). Considering SB, there was a significant decrease of the behavior in all samples. The number of “None” report to grinding teeth during sleep or when waking up increased (p = 0.012). An increase in the self-reporting of feeling discomfort in masticatory muscles when awake or sleeping was observed (p = 0.028). The percentage of participants who did “not remember” any AB or SB activity decreased (p < 0.050). The confinement due to COVID-19 resulted in a forced change in dental students’ lifestyles that resulted in an increase of reported AB and a decrease of reported SB. Clinical Significance: In case of confinement periods, students should be encouraged to try normalizing their daily life by creating healthy routines and, by doing so, reducing the possible predisposition to bruxism and its consequences.
因新冠疫情而被限制活动是一段压力巨大的时期，可能会引发觉醒性磨牙症（AB）和/或睡眠性磨牙症（SB）行为。本研究旨在描述葡萄牙牙科专业学生在疫情大流行之前以及新冠疫情首次强制限制活动期间所报告的AB和SB行为特征。牙科专业学生被纳入这项纵向研究。他们在新冠疫情出现之前（T1）以及葡萄牙开始强制限制活动一个月后（T2），回答了葡萄牙语版经过验证的口腔行为检查表（OBC）。进行描述性统计和线性-线性关联检验以评估随时间的变化（p≤0.05）。64名牙科专业学生（平均年龄22.5±2.8岁；81.5%为女性）完成了研究方案。就AB而言，从T1到T2该行为总体上有所增加。报告“醒来时仅偶尔磨牙”的参与者百分比下降（p<0.001），而报告“醒来时仅偶尔感到面部肌肉不适/紧张”的参与者百分比增加（p = 0.019）。就SB而言，所有样本中的该行为均显著减少。报告睡眠期间或醒来时“从不”磨牙的人数增加（p = 0.012）。观察到清醒或睡眠时咀嚼肌感到不适的自我报告有所增加（p = 0.028）。“不记得”任何AB或SB活动的参与者百分比下降（p<0.050）。新冠疫情导致的限制活动使牙科专业学生的生活方式发生了强制性改变，导致报告的AB增加而报告的SB减少。临床意义：在限制活动期间，应鼓励学生通过建立健康的日常习惯来尝试使日常生活正常化，从而减少磨牙症及其后果的可能易感性。
